private static bool IsInRange(IFCRange range, CurveLoop loop, Plane plane, XYZ extrusionDirection, out bool clipCompletely)
{
clipCompletely = false;
if (range != null)
{
// This check is only applicable for cuts that are perpendicular to the extrusion direction.
// For cuts that aren't, we can't easily tell if this cut is extraneous or not.
if (!MathUtil.IsAlmostEqual(Math.Abs(plane.Normal.DotProduct(extrusionDirection)), 1.0))
{
return(true);
}
double eps = MathUtil.Eps();
double parameterValue = plane.Origin.DotProduct(extrusionDirection);
if (range.Start > parameterValue - eps)
{
clipCompletely = true;
return(false);
}
if (range.End < parameterValue + eps)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Adds openings to an element.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="elementHandle">The parent handle.</param>
/// <param name="element">The element.</param>
/// <param name="lcs">The local coordinate system.</param>
/// <param name="scaledWidth">The width.</param>
/// <param name="range">The range.</param>
/// <param name="setter">The placement setter.</param>
/// <param name="localPlacement">The local placement.</param>
/// <param name="localWrapper">The wrapper.</param>
public static void AddOpeningsToElement(ExporterIFC exporterIFC, IFCAnyHandle elementHandle, Element element, Transform lcs, double scaledWidth,
IFCRange range, PlacementSetter setter, IFCAnyHandle localPlacement, ProductWrapper localWrapper)
{
IList<IFCAnyHandle> elementHandles = new List<IFCAnyHandle>();
elementHandles.Add(elementHandle);
AddOpeningsToElement(exporterIFC, elementHandles, null, element, lcs, scaledWidth, range, setter, localPlacement, localWrapper);
}
private static string CreateOpeningGUID(Element openingElem, IFCRange range, int openingIndex,
int solidIndex)
{
// GUID_TODO: Range can be potentially unstable; getting the corresponding level would be
// better.
string openingId = (range != null) ?
"(" + range.Start.ToString() + ":" + range.End.ToString() + ")" :
string.Empty;
openingId += "Opening:" + openingIndex.ToString() + "Solid:" + solidIndex.ToString();
return(GUIDUtil.GenerateIFCGuidFrom(openingElem, openingId));
}
/// <summary>
/// Gets origin, X direction and curve bound from a curve.
/// </summary>
/// <param name="curve">
/// The curve.
/// </param>
/// <param name="curveBounds">
/// The output curve bounds.
/// </param>
/// <param name="xDirection">
/// The output X direction.
/// </param>
/// <param name="origin">
/// The output origin.
/// </param>
public static void GetAxisAndRangeFromCurve(Curve curve,
out IFCRange curveBounds, out XYZ xDirection, out XYZ origin)
{
curveBounds = new IFCRange(curve.get_EndParameter(0), curve.get_EndParameter(1));
origin = curve.Evaluate(curveBounds.Start, false);
if (curve is Arc)
{
Arc arc = curve as Arc;
xDirection = arc.XDirection;
}
else
{
Transform trf = curve.ComputeDerivatives(curveBounds.Start, false);
xDirection = trf.get_Basis(0);
}
}
private static IFCRange GetExtrusionRangeOfCurveLoop(CurveLoop loop, XYZ extrusionDirection)
{
IFCRange range = new IFCRange();
bool init = false;
foreach (Curve curve in loop)
{
if (!init)
{
if (curve.IsBound)
{
IList <XYZ> coords = curve.Tessellate();
foreach (XYZ coord in coords)
{
double val = coord.DotProduct(extrusionDirection);
if (!init)
{
range.Start = val;
range.End = val;
init = true;
}
else
{
range.Start = Math.Min(range.Start, val);
range.End = Math.Max(range.End, val);
}
}
}
else
{
double val = curve.get_EndPoint(0).DotProduct(extrusionDirection);
range.Start = val;
range.End = val;
init = true;
}
}
else
{
double val = curve.get_EndPoint(0).DotProduct(extrusionDirection);
range.Start = Math.Min(range.Start, val);
range.End = Math.Max(range.End, val);
}
}
return(range);
}
// returns true if either, but not both, the start or end of the extrusion is clipped.
private static KeyValuePair <bool, bool> CollectionClipsExtrusionEnds(IList <CurveLoop> curveLoopBoundaries, XYZ extrusionDirection,
IFCRange extrusionRange)
{
bool clipStart = false;
bool clipEnd = false;
double eps = MathUtil.Eps();
foreach (CurveLoop curveLoop in curveLoopBoundaries)
{
IFCRange loopRange = GetExtrusionRangeOfCurveLoop(curveLoop, extrusionDirection);
if (loopRange.End >= extrusionRange.End - eps)
{
clipEnd = true;
}
if (loopRange.Start <= extrusionRange.Start + eps)
{
clipStart = true;
}
}
KeyValuePair <bool, bool> clipResults = new KeyValuePair <bool, bool>(clipStart, clipEnd);
return(clipResults);
}
// returns true if either, but not both, the start or end of the extrusion is clipped.
private static KeyValuePair<bool, bool> CollectionClipsExtrusionEnds(IList<CurveLoop> curveLoopBoundaries, XYZ extrusionDirection,
IFCRange extrusionRange)
{
bool clipStart = false;
bool clipEnd = false;
double eps = MathUtil.Eps();
foreach (CurveLoop curveLoop in curveLoopBoundaries)
{
IFCRange loopRange = GetExtrusionRangeOfCurveLoop(curveLoop, extrusionDirection);
if (loopRange.End >= extrusionRange.End - eps)
clipEnd = true;
if (loopRange.Start <= extrusionRange.Start + eps)
clipStart = true;
}
KeyValuePair<bool, bool> clipResults = new KeyValuePair<bool, bool>(clipStart, clipEnd);
return clipResults;
}
private static bool IsInRange(IFCRange range, CurveLoop loop, Plane plane, XYZ extrusionDirection, out bool clipCompletely)
{
clipCompletely = false;
if (range != null)
{
// This check is only applicable for cuts that are perpendicular to the extrusion direction.
// For cuts that aren't, we can't easily tell if this cut is extraneous or not.
if (!MathUtil.IsAlmostEqual(Math.Abs(plane.Normal.DotProduct(extrusionDirection)), 1.0))
return true;
double eps = MathUtil.Eps();
double parameterValue = plane.Origin.DotProduct(extrusionDirection);
if (range.Start > parameterValue - eps)
{
clipCompletely = true;
return false;
}
if (range.End < parameterValue + eps)
return false;
}
return true;
}
/// <summary>
/// Collects all solids and meshes within a GeometryElement; the solids which consist of multiple closed volumes
/// will be split into single closed volume Solids.
/// </summary>
/// <remarks>
/// Added in 2013 to replace the temporary API method ExporterIFCUtils.GetSplitClippedSolidMeshGeometry.
/// </remarks>
/// <param name="range">
/// The upper and lower levels which act as the clipping boundaries.
/// </param>
/// <param name="geomElemToUse">The GeometryElement.</param>
/// <returns>The collection of solids and meshes.</returns>
public static SolidMeshGeometryInfo GetSplitClippedSolidMeshGeometry(GeometryElement geomElemToUse, IFCRange range)
{
SolidMeshGeometryInfo geometryInfo = GetClippedSolidMeshGeometry(geomElemToUse, range);
geometryInfo.SplitSolidsList();
return geometryInfo;
}
/// <summary>
/// Gets origin, X direction and curve bound from a curve.
/// </summary>
/// <param name="curve">
/// The curve.
/// </param>
/// <param name="curveBounds">
/// The output curve bounds.
/// </param>
/// <param name="xDirection">
/// The output X direction.
/// </param>
/// <param name="origin">
/// The output origin.
/// </param>
public static void GetAxisAndRangeFromCurve(Curve curve,
out IFCRange curveBounds, out XYZ xDirection, out XYZ origin)
{
curveBounds = new IFCRange(curve.get_EndParameter(0), curve.get_EndParameter(1));
origin = curve.Evaluate(curveBounds.Start, false);
if (curve is Arc)
{
Arc arc = curve as Arc;
xDirection = arc.XDirection;
}
else
{
Transform trf = curve.ComputeDerivatives(curveBounds.Start, false);
xDirection = trf.get_Basis(0);
}
}
/// <summary>
/// Split associated parts when host element is split by level.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="hostElement">The host element havign associtaed parts.</param>
/// <param name="associatedPartsList">The list of associtated parts.</param>
private static void SplitParts(ExporterIFC exporterIFC, Element hostElement, List <ElementId> associatedPartsList)
{
string ifcEnumType;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
// Split the host to find the orphan parts.
IList <ElementId> orphanLevels = new List <ElementId>();
IList <ElementId> hostLevels = new List <ElementId>();
IList <IFCRange> hostRanges = new List <IFCRange>();
LevelUtil.CreateSplitLevelRangesForElement(exporterIFC, exportType, hostElement, out hostLevels, out hostRanges);
orphanLevels = hostLevels;
// Split each Parts
IList <ElementId> levels = new List <ElementId>();
IList <IFCRange> ranges = new List <IFCRange>();
// Dictionary to storage the level and its parts.
Dictionary <ElementId, List <KeyValuePair <Part, IFCRange> > > levelParts = new Dictionary <ElementId, List <KeyValuePair <Part, IFCRange> > >();
foreach (ElementId partId in associatedPartsList)
{
Part part = hostElement.Document.GetElement(partId) as Part;
LevelUtil.CreateSplitLevelRangesForElement(exporterIFC, exportType, part, out levels, out ranges);
// if the parts are above top level, associate them with nearest bottom level.
if (ranges.Count == 0)
{
ElementId bottomLevelId = FindPartSplitLevel(exporterIFC, part);
if (bottomLevelId == ElementId.InvalidElementId)
{
bottomLevelId = part.LevelId;
}
if (!levelParts.ContainsKey(bottomLevelId))
{
levelParts.Add(bottomLevelId, new List <KeyValuePair <Part, IFCRange> >());
}
KeyValuePair <Part, IFCRange> splitPartRange = new KeyValuePair <Part, IFCRange>(part, null);
levelParts[bottomLevelId].Add(splitPartRange);
continue;
}
// The parts split by levels are stored in dictionary.
for (int ii = 0; ii < ranges.Count; ii++)
{
if (!levelParts.ContainsKey(levels[ii]))
{
levelParts.Add(levels[ii], new List <KeyValuePair <Part, IFCRange> >());
}
KeyValuePair <Part, IFCRange> splitPartRange = new KeyValuePair <Part, IFCRange>(part, ranges[ii]);
levelParts[levels[ii]].Add(splitPartRange);
}
if (levels.Count > hostLevels.Count)
{
orphanLevels = orphanLevels.Union <ElementId>(levels).ToList();
}
}
ExporterCacheManager.HostPartsCache.Register(hostElement.Id, levelParts);
// The levels of orphan part.
orphanLevels = orphanLevels.Where(number => !hostLevels.Contains(number)).ToList();
List <KeyValuePair <ElementId, IFCRange> > levelRangePairList = new List <KeyValuePair <ElementId, IFCRange> >();
foreach (ElementId orphanLevelId in orphanLevels)
{
IFCLevelInfo levelInfo = ExporterCacheManager.LevelInfoCache.GetLevelInfo(exporterIFC, orphanLevelId);
if (levelInfo == null)
{
continue;
}
double levelHeight = ExporterCacheManager.LevelInfoCache.FindHeight(orphanLevelId);
IFCRange levelRange = new IFCRange(levelInfo.Elevation, levelInfo.Elevation + levelHeight);
List <KeyValuePair <Part, IFCRange> > splitPartRangeList = new List <KeyValuePair <Part, IFCRange> >();
splitPartRangeList = ExporterCacheManager.HostPartsCache.Find(hostElement.Id, orphanLevelId);
IFCRange highestRange = levelRange;
foreach (KeyValuePair <Part, IFCRange> partRange in splitPartRangeList)
{
if (partRange.Value.End > highestRange.End)
{
highestRange = partRange.Value;
}
}
levelRangePairList.Add(new KeyValuePair <ElementId, IFCRange>(orphanLevelId, highestRange));
}
if (levelRangePairList.Count > 0)
{
ExporterCacheManager.DummyHostCache.Register(hostElement.Id, levelRangePairList);
}
}
/// <summary>
/// Checks if the wall is clipped completely.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="wallElement">
/// The wall element.
/// </param>
/// <param name="range">
/// The range of which may clip the wall.
/// </param>
/// <returns>
/// True if the wall is clipped completely, false otherwise.
/// </returns>
static bool IsWallCompletelyClipped(Wall wallElement, ExporterIFC exporterIFC, IFCRange range)
{
return ExporterIFCUtils.IsWallCompletelyClipped(wallElement, exporterIFC, range);
}
// return null if parent should be completely clipped.
// TODO: determine whether or not to use face boundary.
private static IFCAnyHandle ProcessClippingFace(ExporterIFC exporterIFC, CurveLoop outerBoundary, Plane boundaryPlane,
Plane extrusionBasePlane, XYZ extrusionDirection, IFCRange range, bool useFaceBoundary, IFCAnyHandle bodyItemHnd)
{
if (outerBoundary == null || boundaryPlane == null)
{
throw new Exception("Invalid face boundary.");
}
double clippingSlant = boundaryPlane.Normal.DotProduct(extrusionDirection);
if (useFaceBoundary)
{
if (MathUtil.IsAlmostZero(clippingSlant))
{
return(bodyItemHnd);
}
}
bool clipCompletely;
if (!IsInRange(range, outerBoundary, boundaryPlane, extrusionDirection, out clipCompletely))
{
return(clipCompletely ? null : bodyItemHnd);
}
if (MathUtil.IsAlmostZero(clippingSlant))
{
throw new Exception("Can't create clipping perpendicular to extrusion.");
}
IFCFile file = exporterIFC.GetFile();
XYZ scaledOrig = ExporterIFCUtils.TransformAndScalePoint(exporterIFC, boundaryPlane.Origin);
XYZ scaledNorm = ExporterIFCUtils.TransformAndScaleVector(exporterIFC, boundaryPlane.Normal);
XYZ scaledXDir = ExporterIFCUtils.TransformAndScaleVector(exporterIFC, boundaryPlane.XVec);
IFCAnyHandle planeAxisHnd = ExporterUtil.CreateAxis(file, scaledOrig, scaledNorm, scaledXDir);
IFCAnyHandle surfHnd = IFCInstanceExporter.CreatePlane(file, planeAxisHnd);
IFCAnyHandle clippedBodyItemHnd = null;
IFCAnyHandle halfSpaceHnd = null;
if (useFaceBoundary)
{
IFCAnyHandle boundedCurveHnd;
if (boundaryPlane != null)
{
XYZ projScaledOrigin = ExporterIFCUtils.TransformAndScalePoint(exporterIFC, extrusionBasePlane.Origin);
XYZ projScaledX = ExporterIFCUtils.TransformAndScaleVector(exporterIFC, extrusionBasePlane.XVec);
XYZ projScaledY = ExporterIFCUtils.TransformAndScaleVector(exporterIFC, extrusionBasePlane.YVec);
XYZ projScaledNorm = projScaledX.CrossProduct(projScaledY);
Plane projScaledPlane = new Plane(projScaledX, projScaledY, projScaledOrigin);
IList <UV> polylinePts = TransformAndProjectCurveLoopToPlane(exporterIFC, outerBoundary, projScaledPlane);
polylinePts.Add(polylinePts[0]);
boundedCurveHnd = ExporterUtil.CreatePolyline(file, polylinePts);
IFCAnyHandle boundedAxisHnd = ExporterUtil.CreateAxis(file, projScaledOrigin, projScaledNorm, projScaledX);
halfSpaceHnd = IFCInstanceExporter.CreatePolygonalBoundedHalfSpace(file, boundedAxisHnd, boundedCurveHnd, surfHnd, false);
}
else
{
throw new Exception("Can't create non-polygonal face boundary.");
}
}
else
{
halfSpaceHnd = IFCInstanceExporter.CreateHalfSpaceSolid(file, surfHnd, false);
}
if (halfSpaceHnd == null)
{
throw new Exception("Can't create clipping.");
}
clippedBodyItemHnd = IFCInstanceExporter.CreateBooleanClippingResult(file, IFCBooleanOperator.Difference,
bodyItemHnd, halfSpaceHnd);
return(clippedBodyItemHnd);
}
/// <summary>
/// Adds openings to an element.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="elementHandles">The parent handles.</param>
/// <param name="curveLoops">The parent CurveLoops.</param>
/// <param name="element">The element.</param>
/// <param name="lcs">The local coordinate system.</param>
/// <param name="scaledWidth">The width.</param>
/// <param name="range">The range.</param>
/// <param name="setter">The placement setter.</param>
/// <param name="localPlacement">The local placement.</param>
/// <param name="localWrapper">The wrapper.</param>
public static void AddOpeningsToElement(ExporterIFC exporterIFC,
IList <IFCAnyHandle> elementHandles, IList <CurveLoop> curveLoops, Element element,
Transform lcs, double scaledWidth, IFCRange range, PlacementSetter setter,
IFCAnyHandle localPlacement, ProductWrapper localWrapper)
{
if (lcs == null && ((curveLoops?.Count ?? 0) > 0))
{
// assumption: first curve loop defines the plane.
Plane hostObjPlane = curveLoops[0].HasPlane() ? curveLoops[0].GetPlane(): null;
if (hostObjPlane != null)
{
lcs = GeometryUtil.CreateTransformFromPlane(hostObjPlane);
}
}
IList <IFCOpeningData> openingDataList = ExporterIFCUtils.GetOpeningData(exporterIFC,
element, lcs, range);
IFCFile file = exporterIFC.GetFile();
int openingIndex = 0;
foreach (IFCOpeningData openingData in openingDataList)
{
openingIndex++;
Element openingElem = element.Document.GetElement(openingData.OpeningElementId);
if (openingElem == null)
{
openingElem = element;
}
bool currentWallIsHost = false;
FamilyInstance openingFInst = openingElem as FamilyInstance;
if (openingFInst != null && openingFInst.Host != null)
{
if (openingFInst.Host.Id == element.Id)
{
currentWallIsHost = true;
}
}
// Don't export the opening if WallSweep category has been turned off.
// This is currently restricted to WallSweeps because the element responsible for the opening could be a variety of things,
// including a line as part of the elevation profile of the wall.
// As such, we will restrict which element types we check for CanExportElement.
if ((openingElem is WallSweep) &&
(!ElementFilteringUtil.CanExportElement(exporterIFC, openingElem, true)))
{
continue;
}
IList <IFCExtrusionData> extrusionDataList = openingData.GetExtrusionData();
IFCAnyHandle parentHandle = FindParentHandle(elementHandles, curveLoops, extrusionDataList);
string predefinedType;
IFCExportInfoPair exportType = ExporterUtil.GetProductExportType(exporterIFC,
openingElem, out predefinedType);
bool exportingDoorOrWindow = (exportType.ExportInstance == IFCEntityType.IfcDoor ||
exportType.ExportType == IFCEntityType.IfcDoorType ||
exportType.ExportInstance == IFCEntityType.IfcWindow ||
exportType.ExportType == IFCEntityType.IfcWindowType);
bool isDoorOrWindowOpening = IsDoorOrWindowOpening(openingElem, element,
exportingDoorOrWindow);
if (isDoorOrWindowOpening && currentWallIsHost)
{
DoorWindowDelayedOpeningCreator delayedCreator =
DoorWindowDelayedOpeningCreator.Create(exporterIFC, openingData, scaledWidth,
element.Id, parentHandle, setter.LevelId);
if (delayedCreator != null)
{
ExporterCacheManager.DoorWindowDelayedOpeningCreatorCache.Add(delayedCreator);
continue;
}
}
IList <Solid> solids = openingData.GetOpeningSolids();
int solidIndex = 0;
foreach (Solid solid in solids)
{
solidIndex++;
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(ExporterUtil.CreateLocalPlacement(file, localPlacement, null));
extrusionCreationData.ReuseLocalPlacement = true;
string openingGUID = CreateOpeningGUID(openingElem, range, openingIndex, solidIndex);
CreateOpening(exporterIFC, parentHandle, element, openingElem, openingGUID, solid, scaledWidth, openingData.IsRecess, extrusionCreationData,
setter, localWrapper);
}
}
foreach (IFCExtrusionData extrusionData in extrusionDataList)
{
solidIndex++;
if (extrusionData.ScaledExtrusionLength < MathUtil.Eps())
{
extrusionData.ScaledExtrusionLength = scaledWidth;
}
string openingGUID = CreateOpeningGUID(openingElem, range, openingIndex, solidIndex);
CreateOpening(exporterIFC, parentHandle, localPlacement, element, openingElem,
openingGUID, extrusionData, lcs, openingData.IsRecess, setter, localWrapper);
}
}
}
/// <summary>
/// Collects all solids and meshes within a GeometryElement; the solids which consist of multiple closed volumes
/// will be split into single closed volume Solids.
/// </summary>
/// <remarks>
/// Added in 2013 to replace the temporary API method ExporterIFCUtils.GetSplitClippedSolidMeshGeometry.
/// </remarks>
/// <param name="range">
/// The upper and lower levels which act as the clipping boundaries.
/// </param>
/// <param name="geomElemToUse">The GeometryElement.</param>
/// <returns>The collection of solids and meshes.</returns>
public static SolidMeshGeometryInfo GetSplitClippedSolidMeshGeometry(GeometryElement geomElemToUse, IFCRange range)
{
SolidMeshGeometryInfo geometryInfo = GetClippedSolidMeshGeometry(geomElemToUse, range);
geometryInfo.SplitSolidsList();
return(geometryInfo);
}
/// <summary>
/// Collects all meshes within a GeometryElement and all solids clipped between a given IFCRange.
/// </summary>
/// <remarks>
/// Added in 2013 to replace the temporary API method ExporterIFCUtils.GetClippedSolidMeshGeometry.
/// </remarks>
/// <param name="elem">
/// The Element from which we can obtain a bounding box. Not handled directly in this method, it is used in an internal helper method.
/// </param>
/// <param name="geomElemToUse">
/// The GeometryElement.
/// </param>
/// <param name="range">
/// The upper and lower levels which act as the clipping boundaries.
/// </param>
/// <returns>The collection of solids and meshes.</returns>
public static SolidMeshGeometryInfo GetClippedSolidMeshGeometry(GeometryElement geomElemToUse, IFCRange range)
{
SolidMeshGeometryInfo geometryInfo = GetSolidMeshGeometry(geomElemToUse, Transform.Identity);
geometryInfo.ClipSolidsList(geomElemToUse, range);
return(geometryInfo);
}
/// <summary>
/// Processes the geometry of the wall to create an extruded area solid representing the geometry of the wall (including
/// any clippings imposed by neighboring elements).
/// </summary>
/// <param name="exporterIFC">
/// The exporter.
/// </param>
/// <param name="wallElement">
/// The wall.
/// </param>
/// <param name="setterOffset">
/// The offset from the placement setter.
/// </param>
/// <param name="range">
/// The range. This consists of two double values representing the height in Z at the start and the end
/// of the range. If the values are identical the entire wall is used.
/// </param>
/// <param name="zSpan">
/// The overall span in Z of the wall.
/// </param>
/// <param name="baseBodyItemHnd">
/// The IfcExtrudedAreaSolid handle generated initially for the wall.
/// </param>
/// <param name="cutPairOpenings">
/// A collection of extruded openings that can be derived from the wall geometry.
/// </param>
/// <returns>
/// IfcEtxtrudedAreaSolid handle. This may be the same handle as was input, or a modified handle derived from the clipping
/// geometry. If the function fails this handle will have no value.
/// </returns>
static IFCAnyHandle AddClippingsToBaseExtrusion(ExporterIFC exporterIFC, Wall wallElement,
XYZ setterOffset, IFCRange range, IFCRange zSpan, IFCAnyHandle baseBodyItemHnd, out IList<IFCExtrusionData> cutPairOpenings)
{
return ExporterIFCUtils.AddClippingsToBaseExtrusion(exporterIFC, wallElement, setterOffset, range, zSpan, baseBodyItemHnd, out cutPairOpenings);
}
private static HandleAndAnalyzer CreateExtrusionWithClippingAndOpening(ExporterIFC exporterIFC, Element element,
ElementId catId, Solid solid, Plane plane, XYZ projDir, IFCRange range, out bool completelyClipped,
out bool hasClippingResult, out bool hasBooleanResult, out ElementId materialId)
{
completelyClipped = false;
materialId = ElementId.InvalidElementId;
hasClippingResult = false;
hasBooleanResult = false;
HandleAndAnalyzer nullVal = new HandleAndAnalyzer();
HandleAndAnalyzer retVal = new HandleAndAnalyzer();
try
{
ExtrusionAnalyzer elementAnalyzer = ExtrusionAnalyzer.Create(solid, plane, projDir);
retVal.Analyzer = elementAnalyzer;
Document document = element.Document;
XYZ planeOrig = plane.Origin;
XYZ baseLoopOffset = null;
if (!MathUtil.IsAlmostZero(elementAnalyzer.StartParameter))
baseLoopOffset = elementAnalyzer.StartParameter * projDir;
Face extrusionBase = elementAnalyzer.GetExtrusionBase();
IList<GeometryUtil.FaceBoundaryType> boundaryTypes;
IList<CurveLoop> extrusionBoundaryLoops =
GeometryUtil.GetFaceBoundaries(extrusionBase, baseLoopOffset, out boundaryTypes);
// Return if we get any CurveLoops that are complex, as we don't want to export an approximation of the boundary here.
foreach (GeometryUtil.FaceBoundaryType boundaryType in boundaryTypes)
{
if (boundaryType == GeometryUtil.FaceBoundaryType.Complex)
return nullVal;
}
// Move base plane to start parameter location.
Plane extrusionBasePlane = null;
try
{
extrusionBasePlane = extrusionBoundaryLoops[0].GetPlane();
}
catch
{
return nullVal;
}
double extrusionLength = elementAnalyzer.EndParameter - elementAnalyzer.StartParameter;
double baseOffset = extrusionBasePlane.Origin.DotProduct(projDir);
IFCRange extrusionRange = new IFCRange(baseOffset, extrusionLength + baseOffset);
double startParam = planeOrig.DotProduct(projDir);
double endParam = planeOrig.DotProduct(projDir) + extrusionLength;
if ((range != null) && (startParam >= range.End || endParam <= range.Start))
{
completelyClipped = true;
return nullVal;
}
double scaledExtrusionDepth = UnitUtil.ScaleLength(extrusionLength);
string profileName = null;
if (element != null)
{
ElementType type = element.Document.GetElement(element.GetTypeId()) as ElementType;
if (type != null)
profileName = type.Name;
}
// We use a sub-transaction here in case we are able to generate the base body but not the clippings.
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle finalExtrusionBodyItemHnd = null;
using (IFCTransaction tr = new IFCTransaction(file))
{
// For creating the actual extrusion, we want to use the calculated extrusion plane, not the input plane.
IFCAnyHandle extrusionBodyItemHnd = ExtrusionExporter.CreateExtrudedSolidFromCurveLoop(exporterIFC, profileName,
extrusionBoundaryLoops, extrusionBasePlane, projDir, scaledExtrusionDepth);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(extrusionBodyItemHnd))
{
retVal.BaseExtrusions.Add(extrusionBodyItemHnd);
finalExtrusionBodyItemHnd = extrusionBodyItemHnd;
IDictionary<ElementId, ICollection<ICollection<Face>>> elementCutouts =
GeometryUtil.GetCuttingElementFaces(element, elementAnalyzer);
foreach (KeyValuePair<ElementId, ICollection<ICollection<Face>>> elementCutoutsForElement in elementCutouts)
{
// process clippings first, then openings
ICollection<ICollection<Face>> unhandledElementCutoutsForElement = new List<ICollection<Face>>();
Element cuttingElement = document.GetElement(elementCutoutsForElement.Key);
foreach (ICollection<Face> elementCutout in elementCutoutsForElement.Value)
{
ICollection<Face> skippedFaces = null;
bool unhandledClipping = false;
try
{
// The skippedFaces may represent openings that will be dealt with below.
finalExtrusionBodyItemHnd = GeometryUtil.CreateClippingFromFaces(exporterIFC, cuttingElement,
extrusionBasePlane, projDir,
elementCutout, extrusionRange, finalExtrusionBodyItemHnd, out skippedFaces);
}
catch
{
skippedFaces = null;
unhandledClipping = true;
}
if (finalExtrusionBodyItemHnd == null || unhandledClipping)
{
unhandledElementCutoutsForElement.Add(elementCutout);
}
else
{
if (finalExtrusionBodyItemHnd != extrusionBodyItemHnd)
hasClippingResult = true;
// Even if we created a clipping, we may have faces to further process as openings.
if (skippedFaces != null && skippedFaces.Count != 0)
unhandledElementCutoutsForElement.Add(skippedFaces);
}
}
IFCAnyHandle finalExtrusionClippingBodyItemHnd = finalExtrusionBodyItemHnd;
foreach (ICollection<Face> elementCutout in unhandledElementCutoutsForElement)
{
bool unhandledOpening = false;
try
{
finalExtrusionBodyItemHnd = GeometryUtil.CreateOpeningFromFaces(exporterIFC, cuttingElement,
extrusionBasePlane, projDir,
elementCutout, extrusionRange, finalExtrusionBodyItemHnd);
}
catch
{
unhandledOpening = true;
}
if (finalExtrusionBodyItemHnd == null || unhandledOpening)
{
// Item is completely clipped. We use this only when we are certain:
// 1. finalExtrusionBodyItemHnd is null.
// 2. range is not null (i.e., we expect the possibility of clipping)
// 3. unhandledOpening is not true (i.e., we didn't abort the operation).
// If completelyClipped is true, we won't export the item, so we want to make sure
// that we don't actually want to try a backup method instead.
completelyClipped = (finalExtrusionBodyItemHnd == null) && (range != null) && (!unhandledOpening);
tr.RollBack();
return nullVal;
}
else if (finalExtrusionBodyItemHnd != finalExtrusionClippingBodyItemHnd)
{
hasBooleanResult = true;
}
}
}
materialId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(solid, exporterIFC, element);
BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, document, extrusionBodyItemHnd, materialId);
}
tr.Commit();
}
retVal.Handle = finalExtrusionBodyItemHnd;
return retVal;
}
catch
{
return nullVal;
}
}
private static IFCAnyHandle FallbackTryToCreateAsExtrusion(ExporterIFC exporterIFC, Wall wallElement, SolidMeshGeometryInfo smCapsule,
ElementId catId, Curve curve, Plane plane, double depth, IFCRange zSpan, IFCRange range, IFCPlacementSetter setter,
out IList<IFCExtrusionData> cutPairOpenings, out bool isCompletelyClipped)
{
cutPairOpenings = new List<IFCExtrusionData>();
IFCAnyHandle bodyRep;
isCompletelyClipped = false;
XYZ localOrig = plane.Origin;
bool hasExtrusion = HasElevationProfile(wallElement);
if (hasExtrusion)
{
IList<CurveLoop> loops = GetElevationProfile(wallElement);
if (loops.Count == 0)
hasExtrusion = false;
else
{
IList<IList<CurveLoop>> sortedLoops = ExporterIFCUtils.SortCurveLoops(loops);
if (sortedLoops.Count == 0)
return null;
// Current limitation: can't handle wall split into multiple disjointed pieces.
int numSortedLoops = sortedLoops.Count;
if (numSortedLoops > 1)
return null;
bool ignoreExtrusion = true;
bool cantHandle = false;
bool hasGeometry = false;
for (int ii = 0; (ii < numSortedLoops) && !cantHandle; ii++)
{
int sortedLoopSize = sortedLoops[ii].Count;
if (sortedLoopSize == 0)
continue;
if (!ExporterIFCUtils.IsCurveLoopConvexWithOpenings(sortedLoops[ii][0], wallElement, range, out ignoreExtrusion))
{
if (ignoreExtrusion)
{
// we need more information. Is there something to export? If so, we'll
// ignore the extrusion. Otherwise, we will fail.
if (smCapsule.SolidsCount() == 0 && smCapsule.MeshesCount() == 0)
{
continue;
}
}
else
{
cantHandle = true;
}
hasGeometry = true;
}
else
{
hasGeometry = true;
}
}
if (!hasGeometry)
{
isCompletelyClipped = true;
return null;
}
if (cantHandle)
return null;
}
}
if (!CanExportWallGeometryAsExtrusion(wallElement, range))
return null;
// extrusion direction.
XYZ extrusionDir = GetWallHeightDirection(wallElement);
// create extrusion boundary.
IList<CurveLoop> boundaryLoops = new List<CurveLoop>();
bool alwaysThickenCurve = IsWallBaseRectangular(wallElement, curve);
if (!alwaysThickenCurve)
{
boundaryLoops = GetLoopsFromTopBottomFace(wallElement, exporterIFC);
if (boundaryLoops.Count == 0)
return null;
}
else
{
CurveLoop newLoop = CurveLoop.CreateViaThicken(curve, wallElement.Width, XYZ.BasisZ);
if (newLoop == null)
return null;
if (!newLoop.IsCounterclockwise(XYZ.BasisZ))
newLoop = GeometryUtil.ReverseOrientation(newLoop);
boundaryLoops.Add(newLoop);
}
// origin gets scaled later.
XYZ setterOffset = new XYZ(0, 0, setter.Offset + (localOrig[2] - setter.BaseOffset));
IFCAnyHandle baseBodyItemHnd = ExtrusionExporter.CreateExtrudedSolidFromCurveLoop(exporterIFC, null, boundaryLoops, plane,
extrusionDir, depth);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(baseBodyItemHnd))
return null;
IFCAnyHandle bodyItemHnd = AddClippingsToBaseExtrusion(exporterIFC, wallElement,
setterOffset, range, zSpan, baseBodyItemHnd, out cutPairOpenings);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyItemHnd))
return null;
IFCAnyHandle styledItemHnd = BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, wallElement.Document,
baseBodyItemHnd, ElementId.InvalidElementId);
HashSet<IFCAnyHandle> bodyItems = new HashSet<IFCAnyHandle>();
bodyItems.Add(bodyItemHnd);
IFCAnyHandle contextOfItemsBody = exporterIFC.Get3DContextHandle("Body");
if (baseBodyItemHnd.Id == bodyItemHnd.Id)
{
bodyRep = RepresentationUtil.CreateSweptSolidRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems, null);
}
else
{
bodyRep = RepresentationUtil.CreateClippingRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems);
}
return bodyRep;
}
/// <summary>
/// This method takes the solidsList and clips all of its solids between the given range.
/// </summary>
/// <param name="elem">
/// The Element from which we obtain our BoundingBoxXYZ.
/// </param>
/// <param name="geomElem">
/// The top-level GeometryElement from which to gather X and Y coordinates for the intersecting solid.
/// </param>
/// <param name="range">
/// The IFCRange whose Z values we use to create an intersecting solid to clip the solids in this class's internal solidsList.
/// If range boundaries are equal, method returns, performing no clippings.
/// </param>
public void ClipSolidsList(GeometryElement geomElem, IFCRange range)
{
if (geomElem == null)
{
throw new ArgumentNullException("geomElemToUse");
}
if (MathUtil.IsAlmostEqual(range.Start, range.End) || solidsList.Count == 0)
{
return;
}
double bottomZ;
double boundDifference;
if (range.Start < range.End)
{
bottomZ = range.Start;
boundDifference = range.End - range.Start;
}
else
{
bottomZ = range.End;
boundDifference = range.Start - range.End;
}
// create a new solid using the X and Y of the bounding box on the top level GeometryElement and the Z of the IFCRange
BoundingBoxXYZ elemBoundingBox = geomElem.GetBoundingBox();
XYZ pointA = new XYZ(elemBoundingBox.Min.X, elemBoundingBox.Min.Y, bottomZ);
XYZ pointB = new XYZ(elemBoundingBox.Max.X, elemBoundingBox.Min.Y, bottomZ);
XYZ pointC = new XYZ(elemBoundingBox.Max.X, elemBoundingBox.Max.Y, bottomZ);
XYZ pointD = new XYZ(elemBoundingBox.Min.X, elemBoundingBox.Max.Y, bottomZ);
List<Curve> perimeter = new List<Curve>();
perimeter.Add(Line.CreateBound(pointA, pointB));
perimeter.Add(Line.CreateBound(pointB, pointC));
perimeter.Add(Line.CreateBound(pointC, pointD));
perimeter.Add(Line.CreateBound(pointD, pointA));
List<CurveLoop> boxPerimeterList = new List<CurveLoop>();
boxPerimeterList.Add(CurveLoop.Create(perimeter));
Solid intersectionSolid = GeometryCreationUtilities.CreateExtrusionGeometry(boxPerimeterList, XYZ.BasisZ, boundDifference);
// cycle through the elements in solidsList and intersect them against intersectionSolid to create a new list
List<Solid> clippedSolidsList = new List<Solid>();
Solid currSolid;
foreach (Solid solid in solidsList)
{
try
{
// ExecuteBooleanOperation can throw if it fails. In this case, just ignore the clipping.
currSolid = BooleanOperationsUtils.ExecuteBooleanOperation(solid, intersectionSolid, BooleanOperationsType.Intersect);
if (currSolid != null && currSolid.Volume != 0)
{
clippedSolidsList.Add(currSolid);
}
}
catch
{
}
}
solidsList = clippedSolidsList;
}
/// <summary>
/// This method takes the solidsList and clips all of its solids between the given range.
/// </summary>
/// <param name="elem">
/// The Element from which we obtain our BoundingBoxXYZ.
/// </param>
/// <param name="geomElem">
/// The top-level GeometryElement from which to gather X and Y coordinates for the intersecting solid.
/// </param>
/// <param name="range">
/// The IFCRange whose Z values we use to create an intersecting solid to clip the solids in this class's internal solidsList.
/// If range boundaries are equal, method returns, performing no clippings.
/// </param>
public void ClipSolidsList(GeometryElement geomElem, IFCRange range)
{
if (geomElem == null)
{
throw new ArgumentNullException("geomElemToUse");
}
if (MathUtil.IsAlmostEqual(range.Start, range.End) || solidsList.Count == 0)
{
return;
}
double bottomZ;
double boundDifference;
if (range.Start < range.End)
{
bottomZ = range.Start;
boundDifference = range.End - range.Start;
}
else
{
bottomZ = range.End;
boundDifference = range.Start - range.End;
}
// create a new solid using the X and Y of the bounding box on the top level GeometryElement and the Z of the IFCRange
BoundingBoxXYZ elemBoundingBox = geomElem.GetBoundingBox();
XYZ pointA = new XYZ(elemBoundingBox.Min.X, elemBoundingBox.Min.Y, bottomZ);
XYZ pointB = new XYZ(elemBoundingBox.Max.X, elemBoundingBox.Min.Y, bottomZ);
XYZ pointC = new XYZ(elemBoundingBox.Max.X, elemBoundingBox.Max.Y, bottomZ);
XYZ pointD = new XYZ(elemBoundingBox.Min.X, elemBoundingBox.Max.Y, bottomZ);
List <Curve> perimeter = new List <Curve>();
perimeter.Add(Line.CreateBound(pointA, pointB));
perimeter.Add(Line.CreateBound(pointB, pointC));
perimeter.Add(Line.CreateBound(pointC, pointD));
perimeter.Add(Line.CreateBound(pointD, pointA));
List <CurveLoop> boxPerimeterList = new List <CurveLoop>();
boxPerimeterList.Add(CurveLoop.Create(perimeter));
Solid intersectionSolid = GeometryCreationUtilities.CreateExtrusionGeometry(boxPerimeterList, XYZ.BasisZ, boundDifference);
// cycle through the elements in solidsList and intersect them against intersectionSolid to create a new list
List <Solid> clippedSolidsList = new List <Solid>();
Solid currSolid;
foreach (Solid solid in solidsList)
{
try
{
// ExecuteBooleanOperation can throw if it fails. In this case, just ignore the clipping.
currSolid = BooleanOperationsUtils.ExecuteBooleanOperation(solid, intersectionSolid, BooleanOperationsType.Intersect);
if (currSolid != null && currSolid.Volume != 0)
{
clippedSolidsList.Add(currSolid);
}
}
catch
{
}
}
solidsList = clippedSolidsList;
}
/// <summary>
/// Attempts to create a clipping, recess, or opening from a collection of faces.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="cuttingElement">The cutting element. This will help determine whether to use a clipping or opening in boundary cases.</param>
/// <param name="extrusionBasePlane">The plane of the extrusion base.</param>
/// <param name="extrusionDirection">The extrusion direction.</param>
/// <param name="faces">The collection of faces.</param>
/// <param name="range">The valid range of the extrusion.</param>
/// <param name="origBodyRepHnd">The original body representation.</param>
/// <returns>The new body representation. If the clipping completely clips the extrusion, this will be null. Otherwise, this
/// will be the clipped representation if a clipping was done, or the original representation if not.</returns>
public static IFCAnyHandle CreateClippingFromFaces(ExporterIFC exporterIFC, Element cuttingElement, Plane extrusionBasePlane,
XYZ extrusionDirection, ICollection<Face> faces, IFCRange range, IFCAnyHandle origBodyRepHnd)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(origBodyRepHnd))
return null;
bool polygonalOnly = ExporterCacheManager.ExportOptionsCache.ExportAs2x2;
IList<CurveLoop> outerCurveLoops = new List<CurveLoop>();
IList<Plane> outerCurveLoopPlanes = new List<Plane>();
IList<bool> boundaryIsPolygonal = new List<bool>();
bool allPlanes = true;
UV faceOriginUV = new UV(0, 0);
foreach (Face face in faces)
{
FaceBoundaryType faceBoundaryType;
CurveLoop curveLoop = GetOuterFaceBoundary(face, null, polygonalOnly, out faceBoundaryType);
outerCurveLoops.Add(curveLoop);
boundaryIsPolygonal.Add(faceBoundaryType == FaceBoundaryType.Polygonal);
if (face is PlanarFace)
{
PlanarFace planarFace = face as PlanarFace;
XYZ faceOrigin = planarFace.Origin;
XYZ faceNormal = planarFace.ComputeNormal(faceOriginUV);
Plane plane = new Plane(faceNormal, faceOrigin);
outerCurveLoopPlanes.Add(plane);
if (!curveLoop.IsCounterclockwise(faceNormal))
curveLoop.Flip();
}
else
{
outerCurveLoopPlanes.Add(null);
allPlanes = false;
}
}
if (allPlanes)
{
int numFaces = faces.Count;
// Special case: one face is a clip plane.
if (numFaces == 1)
{
return ProcessClippingFace(exporterIFC, outerCurveLoops[0], outerCurveLoopPlanes[0], extrusionBasePlane,
extrusionDirection, range, false, origBodyRepHnd);
}
KeyValuePair<bool, bool> clipsExtrusionEnds = CollectionClipsExtrusionEnds(outerCurveLoops, extrusionDirection, range);
if (clipsExtrusionEnds.Key == true || clipsExtrusionEnds.Value == true)
{
// Don't clip for a door, window or opening.
if (CreateOpeningForCategory(cuttingElement))
throw new Exception("Unhandled opening.");
ICollection<int> facesToSkip = new HashSet<int>();
bool clipStart = (clipsExtrusionEnds.Key == true);
bool clipBoth = (clipsExtrusionEnds.Key == true && clipsExtrusionEnds.Value == true);
if (!clipBoth)
{
for (int ii = 0; ii < numFaces; ii++)
{
double slant = outerCurveLoopPlanes[ii].Normal.DotProduct(extrusionDirection);
if (!MathUtil.IsAlmostZero(slant))
{
if (clipStart && (slant > 0.0))
throw new Exception("Unhandled clip plane direction.");
if (!clipStart && (slant < 0.0))
throw new Exception("Unhandled clip plane direction.");
}
else
{
facesToSkip.Add(ii);
}
}
}
else
{
// If we are clipping both the start and end of the extrusion, we have to make sure all of the clipping
// planes have the same a non-negative dot product relative to one another.
int clipOrientation = 0;
for (int ii = 0; ii < numFaces; ii++)
{
double slant = outerCurveLoopPlanes[ii].Normal.DotProduct(extrusionDirection);
if (!MathUtil.IsAlmostZero(slant))
{
if (slant > 0.0)
{
if (clipOrientation < 0)
throw new Exception("Unhandled clipping orientations.");
clipOrientation = 1;
}
else
{
if (clipOrientation > 0)
throw new Exception("Unhandled clipping orientations.");
clipOrientation = -1;
}
}
else
{
facesToSkip.Add(ii);
}
}
}
IFCAnyHandle newBodyRepHnd = origBodyRepHnd;
for (int ii = 0; ii < numFaces; ii++)
{
if (facesToSkip.Contains(ii))
continue;
newBodyRepHnd = ProcessClippingFace(exporterIFC, outerCurveLoops[ii], outerCurveLoopPlanes[ii],
extrusionBasePlane, extrusionDirection, range, true, newBodyRepHnd);
if (newBodyRepHnd == null)
return null;
}
return newBodyRepHnd;
}
}
//not handled
throw new Exception("Unhandled clipping.");
}
/// <summary>
/// Creates an extrusion with potential clipping from a list of solids corresponding to an element.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC class.</param>
/// <param name="element">The element.</param>
/// <param name="catId">The category of the element and/or the solid geometry.</param>
/// <param name="solids">The list of solid geometries.</param>
/// <param name="plane">The extrusion base plane.</param>
/// <param name="projDir">The projection direction.</param>
/// <param name="range">The upper and lower limits of the extrusion, in the projection direction.</param>
/// <param name="completelyClipped">Returns true if the extrusion is completely outside the range.</param>
/// <param name="materialIds">The material ids of the solid geometry.</param>
/// <returns>The extrusion handle.</returns>
public static IFCAnyHandle CreateExtrusionWithClipping(ExporterIFC exporterIFC, Element element, ElementId catId,
IList<Solid> solids, Plane plane, XYZ projDir, IFCRange range, out bool completelyClipped, out HashSet<ElementId> materialIds)
{
HandleAndAnalyzer handleAndAnalyzer = CreateExtrusionWithClippingBase(exporterIFC, element, catId,
solids, plane, projDir, range, out completelyClipped, out materialIds);
return handleAndAnalyzer.Handle;
}
/// <summary>
/// Attempts to create a clipping, recess, or opening from a collection of faces.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="cuttingElement">The cutting element. This will help determine whether to use a clipping or opening in boundary cases.</param>
/// <param name="extrusionBasePlane">The plane of the extrusion base.</param>
/// <param name="extrusionDirection">The extrusion direction.</param>
/// <param name="faces">The collection of faces.</param>
/// <param name="range">The valid range of the extrusion.</param>
/// <param name="origBodyRepHnd">The original body representation.</param>
/// <returns>The new body representation. If the clipping completely clips the extrusion, this will be null. Otherwise, this
/// will be the clipped representation if a clipping was done, or the original representation if not.</returns>
public static IFCAnyHandle ProcessFaceCollection(ExporterIFC exporterIFC, Element cuttingElement, Plane extrusionBasePlane,
XYZ extrusionDirection, ICollection <Face> faces, IFCRange range, IFCAnyHandle origBodyRepHnd)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(origBodyRepHnd))
{
return(null);
}
bool polygonalOnly = ExporterCacheManager.ExportOptionsCache.ExportAs2x2;
IList <CurveLoop> outerCurveLoops = new List <CurveLoop>();
IList <Plane> outerCurveLoopPlanes = new List <Plane>();
IList <bool> boundaryIsPolygonal = new List <bool>();
bool allPlanes = true;
UV faceOriginUV = new UV(0, 0);
foreach (Face face in faces)
{
FaceBoundaryType faceBoundaryType;
CurveLoop curveLoop = GetOuterFaceBoundary(face, null, polygonalOnly, out faceBoundaryType);
outerCurveLoops.Add(curveLoop);
boundaryIsPolygonal.Add(faceBoundaryType == FaceBoundaryType.Polygonal);
if (face is PlanarFace)
{
PlanarFace planarFace = face as PlanarFace;
XYZ faceOrigin = planarFace.Origin;
XYZ faceNormal = planarFace.ComputeNormal(faceOriginUV);
Plane plane = new Plane(faceNormal, faceOrigin);
outerCurveLoopPlanes.Add(plane);
if (!curveLoop.IsCounterclockwise(faceNormal))
{
curveLoop.Flip();
}
}
else
{
outerCurveLoopPlanes.Add(null);
allPlanes = false;
}
}
if (allPlanes)
{
int numFaces = faces.Count;
// Special case: one face is a clip plane.
if (numFaces == 1)
{
return(ProcessClippingFace(exporterIFC, outerCurveLoops[0], outerCurveLoopPlanes[0], extrusionBasePlane,
extrusionDirection, range, false, origBodyRepHnd));
}
KeyValuePair <bool, bool> clipsExtrusionEnds = CollectionClipsExtrusionEnds(outerCurveLoops, extrusionDirection, range);
if (clipsExtrusionEnds.Key == true || clipsExtrusionEnds.Value == true)
{
// Don't clip for a door, window or opening.
if (CreateOpeningForCategory(cuttingElement))
{
throw new Exception("Unhandled opening.");
}
ICollection <int> facesToSkip = new HashSet <int>();
bool clipStart = (clipsExtrusionEnds.Key == true);
bool clipBoth = (clipsExtrusionEnds.Key == true && clipsExtrusionEnds.Value == true);
if (!clipBoth)
{
for (int ii = 0; ii < numFaces; ii++)
{
double slant = outerCurveLoopPlanes[ii].Normal.DotProduct(extrusionDirection);
if (!MathUtil.IsAlmostZero(slant))
{
if (clipStart && (slant > 0.0))
{
throw new Exception("Unhandled clip plane direction.");
}
if (!clipStart && (slant < 0.0))
{
throw new Exception("Unhandled clip plane direction.");
}
}
else
{
facesToSkip.Add(ii);
}
}
}
else
{
// If we are clipping both the start and end of the extrusion, we have to make sure all of the clipping
// planes have the same a non-negative dot product relative to one another.
int clipOrientation = 0;
for (int ii = 0; ii < numFaces; ii++)
{
double slant = outerCurveLoopPlanes[ii].Normal.DotProduct(extrusionDirection);
if (!MathUtil.IsAlmostZero(slant))
{
if (slant > 0.0)
{
if (clipOrientation < 0)
{
throw new Exception("Unhandled clipping orientations.");
}
clipOrientation = 1;
}
else
{
if (clipOrientation > 0)
{
throw new Exception("Unhandled clipping orientations.");
}
clipOrientation = -1;
}
}
else
{
facesToSkip.Add(ii);
}
}
}
IFCAnyHandle newBodyRepHnd = origBodyRepHnd;
for (int ii = 0; ii < numFaces; ii++)
{
if (facesToSkip.Contains(ii))
{
continue;
}
newBodyRepHnd = ProcessClippingFace(exporterIFC, outerCurveLoops[ii], outerCurveLoopPlanes[ii],
extrusionBasePlane, extrusionDirection, range, true, newBodyRepHnd);
if (newBodyRepHnd == null)
{
return(null);
}
}
return(newBodyRepHnd);
}
}
bool unhandledCases = true;
if (unhandledCases)
{
throw new Exception("Unhandled opening or clipping.");
}
// We will attempt to "sew" the faces, and see what we have left over. Depending on what we have, we have an opening, recess, or clipping.
IList <Edge> boundaryEdges = new List <Edge>();
foreach (Face face in faces)
{
EdgeArrayArray faceBoundaries = face.EdgeLoops;
// We only know how to deal with the outer loop; we'll throw if we have multiple boundaries.
if (faceBoundaries.Size != 1)
{
throw new Exception("Can't process faces with inner boundaries.");
}
EdgeArray faceBoundary = faceBoundaries.get_Item(0);
foreach (Edge edge in faceBoundary)
{
if (edge.get_Face(0) == null || edge.get_Face(1) == null)
{
boundaryEdges.Add(edge);
}
}
}
return(origBodyRepHnd);
}
/// <summary>
/// Creates an extrusion with potential clipping from a solid corresponding to an element, and supplies ExtrusionCreationData for the result.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC class.</param>
/// <param name="element">The element.</param>
/// <param name="catId">The category of the element and/or the solid geometry.</param>
/// <param name="solid">The solid geometry.</param>
/// <param name="plane">The extrusion base plane.</param>
/// <param name="projDir">The projection direction.</param>
/// <param name="range">The upper and lower limits of the extrusion, in the projection direction.</param>
/// <param name="completelyClipped">Returns true if the extrusion is completely outside the range.</param>
/// <returns>The extrusion handle.</returns>
public static HandleAndData CreateExtrusionWithClippingAndProperties(ExporterIFC exporterIFC,
Element element, ElementId catId, Solid solid, Plane plane, XYZ projDir, IFCRange range, out bool completelyClipped)
{
IList<Solid> solids = new List<Solid>();
solids.Add(solid);
HashSet<ElementId> materialIds = null;
HandleAndAnalyzer handleAndAnalyzer = CreateExtrusionWithClippingBase(exporterIFC, element, catId,
solids, plane, projDir, range, out completelyClipped, out materialIds);
HandleAndData ret = new HandleAndData();
ret.Handle = handleAndAnalyzer.Handle;
ret.BaseExtrusions = handleAndAnalyzer.BaseExtrusions;
ret.ShapeRepresentationType = handleAndAnalyzer.ShapeRepresentationType;
ret.MaterialIds = materialIds;
if (handleAndAnalyzer.Analyzer != null)
ret.Data = GetExtrusionCreationDataFromAnalyzer(exporterIFC, projDir, handleAndAnalyzer.Analyzer);
return ret;
}
/// <summary>
/// Export the individual part (IfcBuildingElementPart).
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="partElement">The part element to export.</param>
/// <param name="geometryElement">The geometry of part.</param>
/// <param name="productWrapper">The IFCProductWrapper object.</param>
public static void ExportPart(ExporterIFC exporterIFC, Element partElement, IFCProductWrapper productWrapper,
IFCPlacementSetter placementSetter, IFCAnyHandle originalPlacement, IFCRange range, IFCExtrusionAxes ifcExtrusionAxes,
Element hostElement, ElementId overrideLevelId, bool asBuildingElement)
{
if (!ElementFilteringUtil.IsElementVisible(ExporterCacheManager.ExportOptionsCache.FilterViewForExport, partElement))
return;
Part part = partElement as Part;
if (part == null)
return;
IFCPlacementSetter standalonePlacementSetter = null;
bool standaloneExport = hostElement == null && !asBuildingElement;
ElementId partExportLevel = null;
if (standaloneExport || asBuildingElement)
{
if (partElement.Level != null)
partExportLevel = partElement.Level.Id;
}
else
{
if (part.OriginalCategoryId != hostElement.Category.Id)
return;
partExportLevel = hostElement.Level.Id;
}
if (overrideLevelId != null)
partExportLevel = overrideLevelId;
if (ExporterCacheManager.PartExportedCache.HasExported(partElement.Id, partExportLevel))
return;
Options options = GeometryUtil.GetIFCExportGeometryOptions();
View ownerView = partElement.Document.GetElement(partElement.OwnerViewId) as View;
if (ownerView != null)
options.View = ownerView;
GeometryElement geometryElement = partElement.get_Geometry(options);
if (geometryElement == null)
return;
try
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
IFCAnyHandle partPlacement = null;
if (standaloneExport || asBuildingElement)
{
Transform orientationTrf = Transform.Identity;
standalonePlacementSetter = IFCPlacementSetter.Create(exporterIFC, partElement, null, orientationTrf, partExportLevel);
partPlacement = standalonePlacementSetter.GetPlacement();
}
else
partPlacement = ExporterUtil.CopyLocalPlacement(file, originalPlacement);
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
SolidMeshGeometryInfo solidMeshInfo;
if (validRange)
{
solidMeshInfo = GeometryUtil.GetClippedSolidMeshGeometry(geometryElement, range);
if (solidMeshInfo.GetSolids().Count == 0 && solidMeshInfo.GetMeshes().Count == 0)
return;
}
else
{
solidMeshInfo = GeometryUtil.GetSolidMeshGeometry(geometryElement, Transform.Identity);
}
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(partPlacement);
extrusionCreationData.ReuseLocalPlacement = false;
extrusionCreationData.PossibleExtrusionAxes = ifcExtrusionAxes;
IList<Solid> solids = solidMeshInfo.GetSolids();
IList<Mesh> meshes = solidMeshInfo.GetMeshes();
ElementId catId = CategoryUtil.GetSafeCategoryId(partElement);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(partElement.Document.Application, exporterIFC, partElement, catId, solids, meshes,
bodyExporterOptions, extrusionCreationData);
}
else
{
IList<GeometryObject> geomlist = new List<GeometryObject>();
geomlist.Add(geometryElement);
bodyData = BodyExporter.ExportBody(partElement.Document.Application, exporterIFC, partElement, catId, geomlist,
bodyExporterOptions, extrusionCreationData);
}
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extrusionCreationData.ClearOpenings();
return;
}
IList<IFCAnyHandle> representations = new List<IFCAnyHandle>();
representations.Add(bodyRep);
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string partGUID = ExporterIFCUtils.CreateGUID(partElement);
string origPartName = NamingUtil.CreateIFCName(exporterIFC, -1);
string partName = NamingUtil.GetNameOverride(partElement, origPartName);
string partDescription = NamingUtil.GetDescriptionOverride(partElement, null);
string partObjectType = NamingUtil.GetObjectTypeOverride(partElement, NamingUtil.CreateIFCObjectName(exporterIFC, partElement));
string partElemId = NamingUtil.CreateIFCElementId(partElement);
IFCAnyHandle ifcPart = null;
if (!asBuildingElement)
{
ifcPart = IFCInstanceExporter.CreateBuildingElementPart(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partElemId);
}
else
{
string ifcEnumType;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
switch (exportType)
{
case IFCExportType.ExportColumnType:
ifcPart = IFCInstanceExporter.CreateColumn(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partElemId);
break;
case IFCExportType.ExportCovering:
IFCCoveringType coveringType = CeilingExporter.GetIFCCoveringType(hostElement, ifcEnumType);
ifcPart = IFCInstanceExporter.CreateCovering(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partElemId, coveringType);
break;
case IFCExportType.ExportFooting:
IFCFootingType footingType = FootingExporter.GetIFCFootingType(hostElement, ifcEnumType);
ifcPart = IFCInstanceExporter.CreateFooting(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partElemId, footingType);
break;
case IFCExportType.ExportRoof:
IFCRoofType roofType = RoofExporter.GetIFCRoofType(ifcEnumType);
ifcPart = IFCInstanceExporter.CreateRoof(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partElemId, roofType);
break;
case IFCExportType.ExportSlab:
IFCSlabType slabType = FloorExporter.GetIFCSlabType(ifcEnumType);
ifcPart = IFCInstanceExporter.CreateSlab(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partElemId, slabType);
break;
case IFCExportType.ExportWall:
ifcPart = IFCInstanceExporter.CreateWallStandardCase(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partElemId);
break;
default:
ifcPart = IFCInstanceExporter.CreateBuildingElementProxy(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partElemId, IFCElementComposition.Element);
break;
}
}
productWrapper.AddElement(ifcPart, standaloneExport || asBuildingElement ? standalonePlacementSetter : placementSetter, extrusionCreationData, standaloneExport || asBuildingElement);
//Add the exported part to exported cache.
TraceExportedParts(partElement, partExportLevel, standaloneExport || asBuildingElement ? ElementId.InvalidElementId : hostElement.Id);
CategoryUtil.CreateMaterialAssociations(partElement.Document, exporterIFC, ifcPart, bodyData.MaterialIds);
transaction.Commit();
}
}
}
finally
{
if (standalonePlacementSetter != null)
standalonePlacementSetter.Dispose();
}
}
public static IFCAnyHandle CreateOpeningFromFaces(ExporterIFC exporterIFC, Element cuttingElement, Plane extrusionBasePlane,
XYZ extrusionDirection, ICollection<Face> faces, IFCRange range, IFCAnyHandle origBodyRepHnd)
{
// We will attempt to "sew" the faces, and see what we have left over. Depending on what we have, we have an opening, recess, or clipping.
// top and bottom profile curves to create extrusion
IDictionary<Face, IList<Curve>> boundaryCurves = new Dictionary<Face, IList<Curve>>();
// curves on same side face to check if they are valid for extrusion
IDictionary<Face, IList<Curve>> boundaryCurvesInSameExistingFace = new Dictionary<Face, IList<Curve>>();
foreach (Face face in faces)
{
EdgeArrayArray faceBoundaries = face.EdgeLoops;
// We only know how to deal with the outer loop; we'll throw if we have multiple boundaries.
if (faceBoundaries.Size != 1)
throw new Exception("Can't process faces with inner boundaries.");
EdgeArray faceBoundary = faceBoundaries.get_Item(0);
foreach (Edge edge in faceBoundary)
{
Face face1 = edge.get_Face(0);
Face face2 = edge.get_Face(1);
Face missingFace = null;
Face existingFace = null;
if (!faces.Contains(face1))
{
missingFace = face1;
existingFace = face2;
}
else if (!faces.Contains(face2))
{
missingFace = face2;
existingFace = face1;
}
if (missingFace != null)
{
Curve curve = edge.AsCurve();
if (!boundaryCurves.ContainsKey(missingFace))
boundaryCurves[missingFace] = new List<Curve>();
boundaryCurves[missingFace].Add(curve);
if (!boundaryCurvesInSameExistingFace.ContainsKey(existingFace))
boundaryCurvesInSameExistingFace[existingFace] = new List<Curve>();
boundaryCurvesInSameExistingFace[existingFace].Add(curve);
}
}
}
//might be recess
if (boundaryCurves.Count == 1)
{
// boundaryCurves contains one curve loop of top profile of an extrusion
// try to find bottom profile
IList<Curve> curves1 = boundaryCurves.Values.ElementAt(0);
CurveLoop curveloop = CurveLoop.Create(curves1);
// find the parallel face
XYZ normal = curveloop.GetPlane().Normal;
PlanarFace recessFace = null;
foreach (Face face in faces)
{
PlanarFace planarFace = face as PlanarFace;
if (planarFace != null && MathUtil.VectorsAreParallel(planarFace.Normal, normal))
{
if (recessFace == null)
recessFace = planarFace;
else
throw new Exception("Can't handle.");
}
}
if (recessFace != null)
{
EdgeArrayArray edgeLoops = recessFace.EdgeLoops;
if (edgeLoops.Size != 1)
throw new Exception("Can't handle.");
EdgeArray edges = edgeLoops.get_Item(0);
IList<Edge> recessFaceEdges = new List<Edge>();
foreach (Edge edge in edges)
{
Face sideFace = edge.get_Face(0);
if (sideFace == recessFace)
sideFace = edge.get_Face(1);
// there should be already one exist during above processing
if (!boundaryCurvesInSameExistingFace.ContainsKey(sideFace))
throw new Exception("Can't handle.");
boundaryCurvesInSameExistingFace[sideFace].Add(edge.AsCurve());
}
}
}
else if (boundaryCurves.Count == 2)
{
// might be an internal opening, process them later
// do nothing now
}
else if (boundaryCurves.Count == 3) //might be an opening on an edge
{
IList<Curve> curves1 = boundaryCurves.Values.ElementAt(0);
IList<Curve> curves2 = boundaryCurves.Values.ElementAt(1);
IList<Curve> curves3 = boundaryCurves.Values.ElementAt(2);
IList<Curve> firstValidCurves = null;
IList<Curve> secondValidCurves = null;
PlanarFace face1 = boundaryCurves.Keys.ElementAt(0) as PlanarFace;
PlanarFace face2 = boundaryCurves.Keys.ElementAt(1) as PlanarFace;
PlanarFace face3 = boundaryCurves.Keys.ElementAt(2) as PlanarFace;
if (face1 == null || face2 == null || face3 == null)
{
//Error
throw new Exception("Can't handle.");
}
Face removedFace = null;
// find two parallel faces
if (MathUtil.VectorsAreParallel(face1.Normal, face2.Normal))
{
firstValidCurves = curves1;
secondValidCurves = curves2;
removedFace = face3;
}
else if (MathUtil.VectorsAreParallel(face1.Normal, face3.Normal))
{
firstValidCurves = curves1;
secondValidCurves = curves3;
removedFace = face2;
}
else if (MathUtil.VectorsAreParallel(face2.Normal, face3.Normal))
{
firstValidCurves = curves2;
secondValidCurves = curves3;
removedFace = face1;
}
// remove the third one and its edge curves
if (removedFace != null)
{
foreach (Curve curve in boundaryCurves[removedFace])
{
foreach (KeyValuePair<Face, IList<Curve>> faceEdgePair in boundaryCurvesInSameExistingFace)
{
if (faceEdgePair.Value.Contains(curve))
boundaryCurvesInSameExistingFace[faceEdgePair.Key].Remove(curve);
}
}
boundaryCurves.Remove(removedFace);
}
// sew, “closing” them with a simple line
IList<IList<Curve>> curvesCollection = new List<IList<Curve>>();
curvesCollection.Add(firstValidCurves);
curvesCollection.Add(secondValidCurves);
foreach (IList<Curve> curves in curvesCollection)
{
if (curves.Count < 2) //not valid
throw new Exception("Can't handle.");
XYZ end0 = curves[0].get_EndPoint(0);
XYZ end1 = curves[0].get_EndPoint(1);
IList<Curve> processedCurves = new List<Curve>();
processedCurves.Add(curves[0]);
curves.Remove(curves[0]);
Curve nextCurve = null;
Curve preCurve = null;
// find the end points on the edges not connected
while (curves.Count > 0)
{
foreach (Curve curve in curves)
{
XYZ curveEnd0 = curve.get_EndPoint(0);
XYZ curveEnd1 = curve.get_EndPoint(1);
if (end1.IsAlmostEqualTo(curveEnd0))
{
nextCurve = curve;
end1 = curveEnd1;
break;
}
else if (end0.IsAlmostEqualTo(curveEnd1))
{
preCurve = curve;
end0 = curveEnd0;
break;
}
}
if (nextCurve != null)
{
processedCurves.Add(nextCurve);
curves.Remove(nextCurve);
nextCurve = null;
}
else if (preCurve != null)
{
processedCurves.Insert(0, preCurve);
curves.Remove(preCurve);
preCurve = null;
}
else
throw new Exception("Can't process edges.");
}
// connect them with a simple line
Curve newCurve = Line.get_Bound(end1, end0);
processedCurves.Add(newCurve);
if (!boundaryCurvesInSameExistingFace.ContainsKey(removedFace))
boundaryCurvesInSameExistingFace[removedFace] = new List<Curve>();
boundaryCurvesInSameExistingFace[removedFace].Add(newCurve);
foreach (Curve curve in processedCurves)
{
curves.Add(curve);
}
}
}
else
throw new Exception("Can't handle.");
// now we should have 2 boundary curve loops
IList<Curve> firstCurves = boundaryCurves.Values.ElementAt(0);
IList<Curve> secondCurves = boundaryCurves.Values.ElementAt(1);
PlanarFace firstFace = boundaryCurves.Keys.ElementAt(0) as PlanarFace;
PlanarFace secondFace = boundaryCurves.Keys.ElementAt(1) as PlanarFace;
if (firstFace == null || secondFace == null)
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
if (firstCurves.Count != secondCurves.Count)
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
CurveLoop curveLoop1 = null;
CurveLoop curveLoop2 = null;
SortCurves(firstCurves);
curveLoop1 = CurveLoop.Create(firstCurves);
SortCurves(secondCurves);
curveLoop2 = CurveLoop.Create(secondCurves);
if (curveLoop1.IsOpen() || curveLoop2.IsOpen() || !curveLoop1.HasPlane() || !curveLoop2.HasPlane())
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
Plane plane1 = curveLoop1.GetPlane();
Plane plane2 = curveLoop2.GetPlane();
if (!curveLoop1.IsCounterclockwise(plane1.Normal))
{
curveLoop1.Flip();
}
if (!curveLoop2.IsCounterclockwise(plane2.Normal))
{
curveLoop2.Flip();
}
// check planar and parallel and orthogonal to the main extrusion dir
if (!MathUtil.VectorsAreParallel(plane1.Normal, plane2.Normal))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
if (!MathUtil.VectorsAreOrthogonal(plane1.Normal, extrusionDirection)
|| !MathUtil.VectorsAreOrthogonal(plane2.Normal, extrusionDirection))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
//get the distance
XYZ origDistance = plane1.Origin - plane2.Origin;
double planesDistance = Math.Abs(origDistance.DotProduct(plane1.Normal));
// check the curves on top and bottom profiles are “identical”
foreach (KeyValuePair<Face, IList<Curve>> faceEdgeCurvePair in boundaryCurvesInSameExistingFace)
{
IList<Curve> curves = faceEdgeCurvePair.Value;
if (curves.Count != 2)
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
Curve edgeCurve1 = curves[0];
Curve edgeCurve2 = curves[1];
Face sideFace = faceEdgeCurvePair.Key;
if (!MathUtil.IsAlmostEqual(edgeCurve1.get_EndPoint(0).DistanceTo(edgeCurve2.get_EndPoint(1)), planesDistance)
|| !MathUtil.IsAlmostEqual(edgeCurve1.get_EndPoint(1).DistanceTo(edgeCurve2.get_EndPoint(0)), planesDistance))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
if (edgeCurve1 is Line)
{
if (!(edgeCurve2 is Line) || !(sideFace is PlanarFace))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
}
else if (edgeCurve1 is Arc)
{
if (!(edgeCurve2 is Arc) || !(sideFace is CylindricalFace))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
Arc arc1 = edgeCurve1 as Arc;
Arc arc2 = edgeCurve2 as Arc;
if (!MathUtil.IsAlmostEqual(arc1.Center.DistanceTo(arc2.Center), planesDistance))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
XYZ sideFaceAxis = (sideFace as CylindricalFace).Axis;
if (!MathUtil.VectorsAreOrthogonal(sideFaceAxis, extrusionDirection))
{
throw new Exception("Can't handle.");
}
}
else if (edgeCurve1 is Ellipse)
{
if (!(edgeCurve2 is Ellipse) || !(sideFace is RuledFace))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
Ellipse ellipse1 = edgeCurve1 as Ellipse;
Ellipse ellipse2 = edgeCurve2 as Ellipse;
if (!MathUtil.IsAlmostEqual(ellipse1.Center.DistanceTo(ellipse2.Center), planesDistance)
|| !MathUtil.IsAlmostEqual(ellipse1.RadiusX, ellipse2.RadiusX) || !MathUtil.IsAlmostEqual(ellipse1.RadiusY, ellipse2.RadiusY))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
}
else if (edgeCurve1 is HermiteSpline)
{
if (!(edgeCurve2 is HermiteSpline) || !(sideFace is RuledFace))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
HermiteSpline hermiteSpline1 = edgeCurve1 as HermiteSpline;
HermiteSpline hermiteSpline2 = edgeCurve2 as HermiteSpline;
IList<XYZ> controlPoints1 = hermiteSpline1.ControlPoints;
IList<XYZ> controlPoints2 = hermiteSpline2.ControlPoints;
int controlPointCount = controlPoints1.Count;
if (controlPointCount != controlPoints2.Count)
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
for (int i = 0; i < controlPointCount; i++)
{
if (!MathUtil.IsAlmostEqual(controlPoints1[i].DistanceTo(controlPoints2[controlPointCount - i - 1]), planesDistance))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
}
DoubleArray parameters1 = hermiteSpline1.Parameters;
DoubleArray parameters2 = hermiteSpline1.Parameters;
int parametersCount = parameters1.Size;
if (parametersCount != parameters2.Size)
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
for (int i = 0; i < parametersCount; i++)
{
if (!MathUtil.IsAlmostEqual(parameters1.get_Item(i), parameters2.get_Item(i)))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
}
}
else if (edgeCurve1 is NurbSpline)
{
if (!(edgeCurve2 is NurbSpline) || !(sideFace is RuledFace))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
NurbSpline nurbSpline1 = edgeCurve1 as NurbSpline;
NurbSpline nurbSpline2 = edgeCurve2 as NurbSpline;
IList<XYZ> controlPoints1 = nurbSpline1.CtrlPoints;
IList<XYZ> controlPoints2 = nurbSpline2.CtrlPoints;
int controlPointCount = controlPoints1.Count;
if (controlPointCount != controlPoints2.Count)
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
for (int i = 0; i < controlPointCount; i++)
{
if (!MathUtil.IsAlmostEqual(controlPoints1[i].DistanceTo(controlPoints2[controlPointCount - i - 1]), planesDistance))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
}
DoubleArray weights1 = nurbSpline1.Weights;
DoubleArray weights2 = nurbSpline2.Weights;
int weightsCount = weights1.Size;
if (weightsCount != weights2.Size)
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
for (int i = 0; i < weightsCount; i++)
{
if (!MathUtil.IsAlmostEqual(weights1.get_Item(i), weights2.get_Item(i)))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
}
DoubleArray knots1 = nurbSpline1.Knots;
DoubleArray knots2 = nurbSpline2.Knots;
int knotsCount = knots1.Size;
if (knotsCount != knots2.Size)
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
for (int i = 0; i < knotsCount; i++)
{
if (!MathUtil.IsAlmostEqual(knots1.get_Item(i), knots2.get_Item(i)))
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
}
}
else
{
//Error, can't handle this
throw new Exception("Can't handle.");
}
}
XYZ extDir = plane2.Origin - plane1.Origin;
XYZ plane1Normal = plane1.Normal;
int vecParallel = MathUtil.VectorsAreParallel2(extDir, plane1Normal);
if (vecParallel == 1)
{
extDir = plane1Normal;
}
else if (vecParallel == -1)
{
extDir = -plane1Normal;
}
else
throw new Exception("Can't handle.");
IList<CurveLoop> origCurveLoops = new List<CurveLoop>();
origCurveLoops.Add(curveLoop1);
IFCAnyHandle extrusionHandle = ExtrusionExporter.CreateExtrudedSolidFromCurveLoop(exporterIFC, null, origCurveLoops, plane1, extDir, planesDistance * exporterIFC.LinearScale);
IFCAnyHandle booleanBodyItemHnd = IFCInstanceExporter.CreateBooleanResult(exporterIFC.GetFile(), IFCBooleanOperator.Difference,
origBodyRepHnd, extrusionHandle);
return booleanBodyItemHnd;
}
/// <summary>
/// Split associated parts when host element is split by level.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="hostElement">The host element havign associtaed parts.</param>
/// <param name="associatedPartsList">The list of associtated parts.</param>
private static void SplitParts(ExporterIFC exporterIFC, Element hostElement, List<ElementId> associatedPartsList)
{
string ifcEnumType;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
// Split the host to find the orphan parts.
IList<ElementId> orphanLevels = new List<ElementId>();
IList<ElementId> hostLevels = new List<ElementId>();
IList<IFCRange> hostRanges = new List<IFCRange>();
LevelUtil.CreateSplitLevelRangesForElement(exporterIFC, exportType, hostElement, out hostLevels, out hostRanges);
orphanLevels = hostLevels;
// Split each Parts
IList<ElementId> levels = new List<ElementId>();
IList<IFCRange> ranges = new List<IFCRange>();
// Dictionary to storage the level and its parts.
Dictionary<ElementId, List<KeyValuePair<Part, IFCRange>>> levelParts = new Dictionary<ElementId, List<KeyValuePair<Part, IFCRange>>>();
foreach (ElementId partId in associatedPartsList)
{
Part part = hostElement.Document.GetElement(partId) as Part;
LevelUtil.CreateSplitLevelRangesForElement(exporterIFC, exportType, part, out levels, out ranges);
// if the parts are above top level, associate them with nearest bottom level.
if (ranges.Count == 0)
{
ElementId bottomLevelId = FindPartSplitLevel(exporterIFC, part);
if (bottomLevelId == ElementId.InvalidElementId && part.Level != null)
bottomLevelId = part.Level.Id;
if (!levelParts.ContainsKey(bottomLevelId))
levelParts.Add(bottomLevelId, new List<KeyValuePair<Part, IFCRange>>());
KeyValuePair<Part, IFCRange> splitPartRange = new KeyValuePair<Part, IFCRange>(part, null);
levelParts[bottomLevelId].Add(splitPartRange);
continue;
}
// The parts split by levels are stored in dictionary.
for (int ii = 0; ii < ranges.Count; ii++)
{
if (!levelParts.ContainsKey(levels[ii]))
levelParts.Add(levels[ii], new List<KeyValuePair<Part, IFCRange>>());
KeyValuePair<Part, IFCRange> splitPartRange = new KeyValuePair<Part, IFCRange>(part, ranges[ii]);
levelParts[levels[ii]].Add(splitPartRange);
}
if (levels.Count > hostLevels.Count)
{
orphanLevels = orphanLevels.Union<ElementId>(levels).ToList();
}
}
ExporterCacheManager.HostPartsCache.Register(hostElement.Id, levelParts);
// The levels of orphan part.
orphanLevels = orphanLevels.Where(number => !hostLevels.Contains(number)).ToList();
List<KeyValuePair<ElementId, IFCRange>> levelRangePairList = new List<KeyValuePair<ElementId, IFCRange>>();
foreach (ElementId orphanLevelId in orphanLevels)
{
IFCLevelInfo levelInfo = ExporterCacheManager.LevelInfoCache.GetLevelInfo(exporterIFC, orphanLevelId);
if (levelInfo == null)
continue;
double levelHeight = ExporterCacheManager.LevelInfoCache.FindHeight(orphanLevelId);
IFCRange levelRange = new IFCRange(levelInfo.Elevation, levelInfo.Elevation + levelHeight);
List<KeyValuePair<Part, IFCRange>> splitPartRangeList = new List<KeyValuePair<Part, IFCRange>>();
splitPartRangeList = ExporterCacheManager.HostPartsCache.Find(hostElement.Id, orphanLevelId);
IFCRange highestRange = levelRange;
foreach (KeyValuePair<Part, IFCRange> partRange in splitPartRangeList)
{
if (partRange.Value.End > highestRange.End)
{
highestRange = partRange.Value;
}
}
levelRangePairList.Add(new KeyValuePair<ElementId, IFCRange>(orphanLevelId, highestRange));
}
if (levelRangePairList.Count > 0)
{
ExporterCacheManager.DummyHostCache.Register(hostElement.Id, levelRangePairList);
}
}
/// <summary>
/// Collects all meshes within a GeometryElement and all solids clipped between a given IFCRange.
/// </summary>
/// <remarks>
/// Added in 2013 to replace the temporary API method ExporterIFCUtils.GetClippedSolidMeshGeometry.
/// </remarks>
/// <param name="elem">
/// The Element from which we can obtain a bounding box. Not handled directly in this method, it is used in an internal helper method.
/// </param>
/// <param name="geomElemToUse">
/// The GeometryElement.
/// </param>
/// <param name="range">
/// The upper and lower levels which act as the clipping boundaries.
/// </param>
/// <returns>The collection of solids and meshes.</returns>
public static SolidMeshGeometryInfo GetClippedSolidMeshGeometry(GeometryElement geomElemToUse, IFCRange range)
{
SolidMeshGeometryInfo geometryInfo = GetSolidMeshGeometry(geomElemToUse, Transform.Identity);
geometryInfo.ClipSolidsList(geomElemToUse, range);
return geometryInfo;
}
/// <summary>
/// Gets the best material id for the geometry.
/// </summary>
/// <param name="geometryElement">The geometry object to get the best material id.</param>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="range">The range to get the clipped geometry.</param>
/// <returns>The material id.</returns>
public static ElementId GetBestMaterialIdForGeometry(GeometryElement geometryElement,
ExporterIFC exporterIFC, IFCRange range)
{
SolidMeshGeometryInfo solidMeshCapsule = null;
if (range == null)
{
solidMeshCapsule = GeometryUtil.GetSolidMeshGeometry(geometryElement, Transform.Identity);
}
else
{
solidMeshCapsule = GeometryUtil.GetClippedSolidMeshGeometry(geometryElement, range);
}
IList<Solid> solids = solidMeshCapsule.GetSolids();
IList<Mesh> polyMeshes = solidMeshCapsule.GetMeshes();
ElementId id = GetBestMaterialIdForGeometry(solids, polyMeshes);
return id;
}
private static IFCRange GetExtrusionRangeOfCurveLoop(CurveLoop loop, XYZ extrusionDirection)
{
IFCRange range = new IFCRange();
bool init = false;
foreach (Curve curve in loop)
{
if (!init)
{
if (curve.IsBound)
{
IList<XYZ> coords = curve.Tessellate();
foreach (XYZ coord in coords)
{
double val = coord.DotProduct(extrusionDirection);
if (!init)
{
range.Start = val;
range.End = val;
init = true;
}
else
{
range.Start = Math.Min(range.Start, val);
range.End = Math.Max(range.End, val);
}
}
}
else
{
double val = curve.get_EndPoint(0).DotProduct(extrusionDirection);
range.Start = val;
range.End = val;
init = true;
}
}
else
{
double val = curve.get_EndPoint(0).DotProduct(extrusionDirection);
range.Start = Math.Min(range.Start, val);
range.End = Math.Max(range.End, val);
}
}
return range;
}
/// <summary>
/// Creates a list of ranges to split an element.
/// </summary>
/// <remarks>
/// We may need to split an element (e.g. column) into parts by level.
/// </remarks>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="exportType">
/// The export type.
/// </param>
/// <param name="element">
/// The element.
/// </param>
/// <param name="levels">
/// The levels to split the element.
/// </param>
/// <param name="ranges">
/// The ranges to split the element.
/// </param>
public static void CreateSplitLevelRangesForElement(ExporterIFC exporterIFC, IFCExportType exportType, Element element,
out IList <ElementId> levels, out IList <IFCRange> ranges)
{
levels = new List <ElementId>();
ranges = new List <IFCRange>();
double extension = GetLevelExtension();
if ((exportType == IFCExportType.ExportColumnType || exportType == IFCExportType.ExportWall) && (ExporterCacheManager.ExportOptionsCache.WallAndColumnSplitting))
{
BoundingBoxXYZ boundingBox = element.get_BoundingBox(null);
{
IFCRange zSpan = new IFCRange(boundingBox.Min.Z, boundingBox.Max.Z);
if (zSpan.Start < zSpan.End)
{
bool firstLevel = true;
ElementId skipToNextLevel = ElementId.InvalidElementId;
// If the base level of the element is set, we will start "looking" at that level. Anything below the base level will be included with the base level.
// We will only do this if the base level is a building story.
ElementId firstLevelId = GetBaseLevelIdForElement(element);
bool foundFirstLevel = (firstLevelId == ElementId.InvalidElementId);
List <ElementId> levelIds = ExporterCacheManager.LevelInfoCache.LevelsByElevation;
foreach (ElementId levelId in levelIds)
{
if (!foundFirstLevel)
{
if (levelId != firstLevelId)
{
continue;
}
else
{
foundFirstLevel = true;
}
}
if (skipToNextLevel != ElementId.InvalidElementId && levelId != skipToNextLevel)
{
continue;
}
IFCLevelInfo levelInfo = ExporterCacheManager.LevelInfoCache.GetLevelInfo(exporterIFC, levelId);
if (levelInfo == null)
{
continue;
}
// endBelowLevel
if (zSpan.End < levelInfo.Elevation + extension)
{
continue;
}
// To calculate the distance to the next level, we check to see if the Level UpToLevel built-in parameter
// is set. If so, we calculate the distance by getting the elevation of the UpToLevel level minus the
// current elevation, and use it if it is greater than 0. If it is not greater than 0, or the built-in
// parameter is not set, we use DistanceToNextLevel.
double levelHeight = ExporterCacheManager.LevelInfoCache.FindHeight(levelId);
if (levelHeight < 0.0)
{
levelHeight = calculateDistanceToNextLevel(element.Document, levelId, levelInfo);
}
skipToNextLevel = ExporterCacheManager.LevelInfoCache.FindNextLevel(levelId);
// startAboveLevel
if ((!MathUtil.IsAlmostZero(levelHeight)) &&
(zSpan.Start > levelInfo.Elevation + levelHeight - extension))
{
continue;
}
bool startBelowLevel = !firstLevel && (zSpan.Start < levelInfo.Elevation - extension);
bool endAboveLevel = ((!MathUtil.IsAlmostZero(levelHeight)) &&
(zSpan.End > levelInfo.Elevation + levelHeight + extension));
if (!startBelowLevel && !endAboveLevel)
{
break;
}
IFCRange currentSpan = new IFCRange(
startBelowLevel ? levelInfo.Elevation : zSpan.Start,
endAboveLevel ? (levelInfo.Elevation + levelHeight) : zSpan.End);
ranges.Add(currentSpan);
levels.Add(levelId);
firstLevel = false;
}
}
}
}
}
// return null if parent should be completely clipped.
// TODO: determine whether or not to use face boundary.
private static IFCAnyHandle ProcessClippingFace(ExporterIFC exporterIFC, CurveLoop outerBoundary, Plane boundaryPlane,
Plane extrusionBasePlane, XYZ extrusionDirection, IFCRange range, bool useFaceBoundary, IFCAnyHandle bodyItemHnd)
{
if (outerBoundary == null || boundaryPlane == null)
throw new Exception("Invalid face boundary.");
double clippingSlant = boundaryPlane.Normal.DotProduct(extrusionDirection);
if (useFaceBoundary)
{
if (MathUtil.IsAlmostZero(clippingSlant))
return bodyItemHnd;
}
bool clipCompletely;
if (!IsInRange(range, outerBoundary, boundaryPlane, extrusionDirection, out clipCompletely))
return clipCompletely ? null : bodyItemHnd;
if (MathUtil.IsAlmostZero(clippingSlant))
throw new Exception("Can't create clipping perpendicular to extrusion.");
IFCFile file = exporterIFC.GetFile();
XYZ scaledOrig = ExporterIFCUtils.TransformAndScalePoint(exporterIFC, boundaryPlane.Origin);
XYZ scaledNorm = ExporterIFCUtils.TransformAndScaleVector(exporterIFC, boundaryPlane.Normal);
XYZ scaledXDir = ExporterIFCUtils.TransformAndScaleVector(exporterIFC, boundaryPlane.XVec);
IFCAnyHandle planeAxisHnd = ExporterUtil.CreateAxis(file, scaledOrig, scaledNorm, scaledXDir);
IFCAnyHandle surfHnd = IFCInstanceExporter.CreatePlane(file, planeAxisHnd);
IFCAnyHandle clippedBodyItemHnd = null;
IFCAnyHandle halfSpaceHnd = null;
if (useFaceBoundary)
{
IFCAnyHandle boundedCurveHnd;
if (boundaryPlane != null)
{
XYZ projScaledOrigin = ExporterIFCUtils.TransformAndScalePoint(exporterIFC, extrusionBasePlane.Origin);
XYZ projScaledX = ExporterIFCUtils.TransformAndScaleVector(exporterIFC, extrusionBasePlane.XVec);
XYZ projScaledY= ExporterIFCUtils.TransformAndScaleVector(exporterIFC, extrusionBasePlane.YVec);
XYZ projScaledNorm = projScaledX.CrossProduct(projScaledY);
Plane projScaledPlane = new Plane(projScaledX, projScaledY, projScaledOrigin);
IList<UV> polylinePts = TransformAndProjectCurveLoopToPlane(exporterIFC, outerBoundary, projScaledPlane);
polylinePts.Add(polylinePts[0]);
boundedCurveHnd = ExporterUtil.CreatePolyline(file, polylinePts);
IFCAnyHandle boundedAxisHnd = ExporterUtil.CreateAxis(file, projScaledOrigin, projScaledNorm, projScaledX);
halfSpaceHnd = IFCInstanceExporter.CreatePolygonalBoundedHalfSpace(file, boundedAxisHnd, boundedCurveHnd, surfHnd, false);
}
else
{
throw new Exception("Can't create non-polygonal face boundary.");
}
}
else
{
halfSpaceHnd = IFCInstanceExporter.CreateHalfSpaceSolid(file, surfHnd, false);
}
if (halfSpaceHnd == null)
throw new Exception("Can't create clipping.");
clippedBodyItemHnd = IFCInstanceExporter.CreateBooleanClippingResult(file, IFCBooleanOperator.Difference,
bodyItemHnd, halfSpaceHnd);
return clippedBodyItemHnd;
}
/// <summary>
/// Export the dummy wall to host an orphan part. It usually happens in the cases of associated parts are higher than split sub-wall.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The wall element.</param>
/// <param name="geometryElement">The geometry of wall.</param>
/// <param name="origWrapper">The ProductWrapper.</param>
/// <param name="overrideLevelId">The ElementId that will crate the dummy wall.</param>
/// <param name="range">The IFCRange corresponding to the dummy wall.</param>
/// <returns>The handle of dummy wall.</returns>
public static IFCAnyHandle ExportDummyWall(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
ProductWrapper origWrapper, ElementId overrideLevelId, IFCRange range)
{
using (ProductWrapper localWrapper = ProductWrapper.Create(origWrapper))
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
Wall wallElement = element as Wall;
if (wallElement == null)
return null;
if (wallElement != null && IsWallCompletelyClipped(wallElement, exporterIFC, range))
return null;
// get global values.
Document doc = element.Document;
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
bool exportParts = PartExporter.CanExportParts(wallElement);
if (exportParts && !PartExporter.CanExportElementInPartExport(wallElement, validRange ? overrideLevelId : wallElement.LevelId, validRange))
return null;
string objectType = NamingUtil.CreateIFCObjectName(exporterIFC, element);
IFCAnyHandle wallHnd = null;
string elemGUID = null;
int subElementIndex = ExporterStateManager.GetCurrentRangeIndex();
if (subElementIndex == 0)
elemGUID = GUIDUtil.CreateGUID(element);
else if (subElementIndex <= ExporterStateManager.RangeIndexSetter.GetMaxStableGUIDs())
elemGUID = GUIDUtil.CreateSubElementGUID(element, subElementIndex + (int)IFCGenericSubElements.SplitInstanceStart - 1);
else
elemGUID = GUIDUtil.CreateGUID();
string elemName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string elemDesc = NamingUtil.GetDescriptionOverride(element, null);
string elemObjectType = NamingUtil.GetObjectTypeOverride(element, objectType);
string elemTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
Transform orientationTrf = Transform.Identity;
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, orientationTrf, overrideLevelId))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
wallHnd = IFCInstanceExporter.CreateWall(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, null, elemTag, "NOTDEFINED");
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, element, wallHnd, localWrapper, setter, localPlacement, overrideLevelId);
IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData();
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ; // only allow vertical extrusions!
extraParams.AreInnerRegionsOpenings = true;
localWrapper.AddElement(element, wallHnd, setter, extraParams, true);
ElementId wallLevelId = (validRange) ? setter.LevelId : ElementId.InvalidElementId;
SpaceBoundingElementUtil.RegisterSpaceBoundingElementHandle(exporterIFC, wallHnd, element.Id, wallLevelId);
}
return wallHnd;
}
}
/// <summary>
/// Creates a list of ranges to split an element.
/// </summary>
/// <remarks>
/// We may need to split an element (e.g. column) into parts by level.
/// </remarks>
/// <param name="exporterIFC">The ExporterIFC object. </param>
/// <param name="exportType">The export type. </param>
/// <param name="element">The element. </param>
/// <param name="levels">The levels to split the element.</param>
/// <param name="ranges">The ranges to split the element. These will be non-overlapping.</param>
public static void CreateSplitLevelRangesForElement(ExporterIFC exporterIFC, IFCExportType exportType, Element element,
out IList <ElementId> levels, out IList <IFCRange> ranges)
{
levels = new List <ElementId>();
ranges = new List <IFCRange>();
if (!ExporterCacheManager.ExportOptionsCache.WallAndColumnSplitting)
{
return;
}
double extension = GetLevelExtension();
bool splitByLevel = (exportType == IFCExportType.IfcColumnType || exportType == IFCExportType.IfcWall) || (exportType == IFCExportType.IfcDuctSegmentType);
if (!splitByLevel)
{
return;
}
BoundingBoxXYZ boundingBox = element.get_BoundingBox(null);
if (boundingBox == null)
{
return;
}
{
IFCRange zSpan = new IFCRange(boundingBox.Min.Z, boundingBox.Max.Z);
if (zSpan.Start < zSpan.End)
{
bool firstLevel = true;
ElementId skipToNextLevel = ElementId.InvalidElementId;
// If the base level of the element is set, we will start "looking" at that level. Anything below the base level will be included with the base level.
// We will only do this if the base level is a building story.
ElementId firstLevelId = GetBaseLevelIdForElement(element);
bool foundFirstLevel = (firstLevelId == ElementId.InvalidElementId);
IList <ElementId> levelIds = ExporterCacheManager.LevelInfoCache.BuildingStoreysByElevation;
foreach (ElementId levelId in levelIds)
{
if (!foundFirstLevel)
{
if (levelId != firstLevelId)
{
continue;
}
else
{
foundFirstLevel = true;
}
}
if (skipToNextLevel != ElementId.InvalidElementId && levelId != skipToNextLevel)
{
continue;
}
IFCLevelInfo levelInfo = ExporterCacheManager.LevelInfoCache.GetLevelInfo(exporterIFC, levelId);
if (levelInfo == null)
{
continue;
}
// endBelowLevel
if (zSpan.End < levelInfo.Elevation + extension)
{
continue;
}
// To calculate the distance to the next level, we check to see if the Level UpToLevel built-in parameter
// is set. If so, we calculate the distance by getting the elevation of the UpToLevel level minus the
// current elevation, and use it if it is greater than 0. If it is not greater than 0, or the built-in
// parameter is not set, we use DistanceToNextLevel.
double levelHeight = ExporterCacheManager.LevelInfoCache.FindHeight(levelId);
if (levelHeight < 0.0)
{
levelHeight = CalculateDistanceToNextLevel(element.Document, levelId, levelInfo);
}
skipToNextLevel = ExporterCacheManager.LevelInfoCache.FindNextLevel(levelId);
// startAboveLevel
if ((!MathUtil.IsAlmostZero(levelHeight)) &&
(zSpan.Start > levelInfo.Elevation + levelHeight - extension))
{
continue;
}
bool startBelowLevel = !firstLevel && (zSpan.Start < levelInfo.Elevation - extension);
bool endAboveLevel = ((!MathUtil.IsAlmostZero(levelHeight)) &&
(zSpan.End > levelInfo.Elevation + levelHeight + extension));
if (!startBelowLevel && !endAboveLevel)
{
break;
}
IFCRange currentSpan = new IFCRange(
startBelowLevel ? levelInfo.Elevation : zSpan.Start,
endAboveLevel ? (levelInfo.Elevation + levelHeight) : zSpan.End);
// We want our ranges to be non-overlapping. As such, we'll modify the start parameter
// to be at least as large as the previous end parameter (if any). If this makes the
// range invalid, we won't add it.
if (ranges.Count > 0)
{
IFCRange lastSpan = ranges.Last();
if (lastSpan.End > currentSpan.End - MathUtil.Eps())
{
continue;
}
currentSpan.Start = Math.Max(currentSpan.Start, lastSpan.End);
}
ranges.Add(currentSpan);
levels.Add(levelId);
firstLevel = false;
}
}
}
}
private static bool WallHasGeometryToExport(Wall wallElement,
IList<Solid> solids,
IList<Mesh> meshes,
IFCRange range,
out bool isCompletelyClipped)
{
isCompletelyClipped = false;
bool hasExtrusion = HasElevationProfile(wallElement);
if (hasExtrusion)
{
IList<CurveLoop> loops = GetElevationProfile(wallElement);
if (loops.Count == 0)
hasExtrusion = false;
else
{
IList<IList<CurveLoop>> sortedLoops = ExporterIFCUtils.SortCurveLoops(loops);
if (sortedLoops.Count == 0)
return false;
// Current limitation: can't handle wall split into multiple disjointed pieces.
int numSortedLoops = sortedLoops.Count;
if (numSortedLoops > 1)
return false;
bool ignoreExtrusion = true;
bool cantHandle = false;
bool hasGeometry = false;
for (int ii = 0; (ii < numSortedLoops) && !cantHandle; ii++)
{
int sortedLoopSize = sortedLoops[ii].Count;
if (sortedLoopSize == 0)
continue;
if (!ExporterIFCUtils.IsCurveLoopConvexWithOpenings(sortedLoops[ii][0], wallElement, range, out ignoreExtrusion))
{
if (ignoreExtrusion)
{
// we need more information. Is there something to export? If so, we'll
// ignore the extrusion. Otherwise, we will fail.
if (solids.Count == 0 && meshes.Count == 0)
continue;
}
else
{
cantHandle = true;
}
hasGeometry = true;
}
else
{
hasGeometry = true;
}
}
if (!hasGeometry)
{
isCompletelyClipped = true;
return false;
}
if (cantHandle)
return false;
}
}
return true;
}
/// <summary>
/// Main implementation to export walls.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="element">
/// The element.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="origWrapper">
/// The IFCProductWrapper.
/// </param>
/// <param name="overrideLevelId">
/// The level id.
/// </param>
/// <param name="range">
/// The range to be exported for the element.
/// </param>
/// <returns>
/// The exported wall handle.
/// </returns>
public static IFCAnyHandle ExportWallBase(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
IFCProductWrapper origWrapper, ElementId overrideLevelId, IFCRange range)
{
using (IFCProductWrapper localWrapper = IFCProductWrapper.Create(origWrapper))
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
Wall wallElement = element as Wall;
FamilyInstance famInstWallElem = element as FamilyInstance;
if (wallElement == null && famInstWallElem == null)
return null;
if (wallElement != null && IsWallCompletelyClipped(wallElement, exporterIFC, range))
return null;
// get global values.
Document doc = element.Document;
double scale = exporterIFC.LinearScale;
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
IFCAnyHandle contextOfItemsAxis = exporterIFC.Get3DContextHandle("Axis");
IFCAnyHandle contextOfItemsBody = exporterIFC.Get3DContextHandle("Body");
IFCRange zSpan = new IFCRange();
double depth = 0.0;
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
bool exportParts = PartExporter.CanExportParts(wallElement);
if (exportParts && !PartExporter.CanExportElementInPartExport(wallElement, validRange? overrideLevelId : wallElement.Level.Id, validRange))
return null;
// get bounding box height so that we can subtract out pieces properly.
// only for Wall, not FamilyInstance.
if (wallElement != null && geometryElement != null)
{
BoundingBoxXYZ boundingBox = element.get_BoundingBox(null);
if (boundingBox == null)
return null;
zSpan = new IFCRange(boundingBox.Min.Z, boundingBox.Max.Z);
// if we have a top clipping plane, modify depth accordingly.
double bottomHeight = validRange ? Math.Max(zSpan.Start, range.Start) : zSpan.Start;
double topHeight = validRange ? Math.Min(zSpan.End, range.End) : zSpan.End;
depth = topHeight - bottomHeight;
if (MathUtil.IsAlmostZero(depth))
return null;
depth *= scale;
}
IFCAnyHandle axisRep = null;
IFCAnyHandle bodyRep = null;
bool exportingAxis = false;
Curve curve = null;
bool exportedAsWallWithAxis = false;
bool exportedBodyDirectly = false;
bool exportingInplaceOpenings = false;
Curve centerCurve = GetWallAxis(wallElement);
XYZ localXDir = new XYZ(1, 0, 0);
XYZ localYDir = new XYZ(0, 1, 0);
XYZ localZDir = new XYZ(0, 0, 1);
XYZ localOrig = new XYZ(0, 0, 0);
double eps = MathUtil.Eps();
if (centerCurve != null)
{
Curve baseCurve = GetWallAxisAtBaseHeight(wallElement);
curve = GetWallTrimmedCurve(wallElement, baseCurve);
IFCRange curveBounds;
XYZ oldOrig;
GeometryUtil.GetAxisAndRangeFromCurve(curve, out curveBounds, out localXDir, out oldOrig);
localOrig = oldOrig;
if (baseCurve != null)
{
if (!validRange || (MathUtil.IsAlmostEqual(range.Start, zSpan.Start)))
{
XYZ newOrig = baseCurve.Evaluate(curveBounds.Start, false);
if (!validRange && (zSpan.Start < newOrig[2] - eps))
localOrig = new XYZ(localOrig.X, localOrig.Y, zSpan.Start);
else
localOrig = new XYZ(localOrig.X, localOrig.Y, newOrig[2]);
}
else
{
localOrig = new XYZ(localOrig.X, localOrig.Y, range.Start);
}
}
double dist = localOrig[2] - oldOrig[2];
if (!MathUtil.IsAlmostZero(dist))
{
XYZ moveVec = new XYZ(0, 0, dist);
curve = GeometryUtil.MoveCurve(curve, moveVec);
}
localYDir = localZDir.CrossProduct(localXDir);
// ensure that X and Z axes are orthogonal.
double xzDot = localZDir.DotProduct(localXDir);
if (!MathUtil.IsAlmostZero(xzDot))
localXDir = localYDir.CrossProduct(localZDir);
}
Transform orientationTrf = Transform.Identity;
orientationTrf.BasisX = localXDir;
orientationTrf.BasisY = localYDir;
orientationTrf.BasisZ = localZDir;
orientationTrf.Origin = localOrig;
using (IFCPlacementSetter setter = IFCPlacementSetter.Create(exporterIFC, element, null, orientationTrf, overrideLevelId))
{
IFCAnyHandle localPlacement = setter.GetPlacement();
Plane plane = new Plane(localXDir, localYDir, localOrig); // project curve to XY plane.
XYZ projDir = XYZ.BasisZ;
// two representations: axis, body.
{
if ((centerCurve != null) && (GeometryUtil.CurveIsLineOrArc(centerCurve)))
{
exportingAxis = true;
string identifierOpt = "Axis"; // IFC2x2 convention
string representationTypeOpt = "Curve2D"; // IFC2x2 convention
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, plane, projDir, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, curve, XYZ.Zero, true);
IList<IFCAnyHandle> axisItems = info.GetCurves();
if (axisItems.Count == 0)
{
exportingAxis = false;
}
else
{
HashSet<IFCAnyHandle> axisItemSet = new HashSet<IFCAnyHandle>();
foreach (IFCAnyHandle axisItem in axisItems)
axisItemSet.Add(axisItem);
axisRep = RepresentationUtil.CreateShapeRepresentation(exporterIFC, element, catId, contextOfItemsAxis,
identifierOpt, representationTypeOpt, axisItemSet);
}
}
}
IList<IFCExtrusionData> cutPairOpenings = new List<IFCExtrusionData>();
Document document = element.Document;
if (wallElement != null && exportingAxis && curve != null)
{
SolidMeshGeometryInfo solidMeshInfo =
(range == null) ? GeometryUtil.GetSolidMeshGeometry(geometryElement, Transform.Identity) :
GeometryUtil.GetClippedSolidMeshGeometry(geometryElement, range);
IList<Solid> solids = solidMeshInfo.GetSolids();
IList<Mesh> meshes = solidMeshInfo.GetMeshes();
if (solids.Count == 0 && meshes.Count == 0)
return null;
bool useNewCode = false;
if (useNewCode && solids.Count == 1 && meshes.Count == 0)
{
bool completelyClipped;
bodyRep = ExtrusionExporter.CreateExtrusionWithClipping(exporterIFC, wallElement, catId, solids[0],
plane, projDir, range, out completelyClipped);
if (completelyClipped)
return null;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
exportedAsWallWithAxis = true;
exportedBodyDirectly = true;
}
else
{
exportedAsWallWithAxis = false;
exportedBodyDirectly = false;
}
}
if (!exportedAsWallWithAxis)
{
// Fallback - use native routines to try to export wall.
bool isCompletelyClipped;
bodyRep = FallbackTryToCreateAsExtrusion(exporterIFC, wallElement, solidMeshInfo,
catId, curve, plane, depth, zSpan, range, setter,
out cutPairOpenings, out isCompletelyClipped);
if (isCompletelyClipped)
return null;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
exportedAsWallWithAxis = true;
}
}
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
ElementId matId = ElementId.InvalidElementId;
if (!exportedAsWallWithAxis)
{
SolidMeshGeometryInfo solidMeshCapsule = null;
if (wallElement != null)
{
if (validRange)
{
solidMeshCapsule = GeometryUtil.GetClippedSolidMeshGeometry(geometryElement, range);
}
else
{
solidMeshCapsule = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
}
if (solidMeshCapsule.SolidsCount() == 0 && solidMeshCapsule.MeshesCount() == 0)
{
return null;
}
}
else
{
GeometryElement geomElemToUse = GetGeometryFromInplaceWall(famInstWallElem);
if (geomElemToUse != null)
{
exportingInplaceOpenings = true;
}
else
{
exportingInplaceOpenings = false;
geomElemToUse = geometryElement;
}
Transform trf = Transform.Identity;
if (geomElemToUse != geometryElement)
trf = famInstWallElem.GetTransform();
solidMeshCapsule = GeometryUtil.GetSolidMeshGeometry(geomElemToUse, trf);
}
IList<Solid> solids = solidMeshCapsule.GetSolids();
IList<Mesh> meshes = solidMeshCapsule.GetMeshes();
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ; // only allow vertical extrusions!
extraParams.AreInnerRegionsOpenings = true;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
if ((solids.Count > 0) || (meshes.Count > 0))
{
matId = BodyExporter.GetBestMaterialIdForGeometry(solids, meshes);
bodyRep = BodyExporter.ExportBody(element.Document.Application, exporterIFC, element, catId,
solids, meshes, bodyExporterOptions, extraParams).RepresentationHnd;
}
else
{
IList<GeometryObject> geomElemList = new List<GeometryObject>();
geomElemList.Add(geometryElement);
BodyData bodyData = BodyExporter.ExportBody(element.Document.Application, exporterIFC, element, catId,
geomElemList, bodyExporterOptions, extraParams);
bodyRep = bodyData.RepresentationHnd;
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extraParams.ClearOpenings();
return null;
}
// We will be able to export as a IfcWallStandardCase as long as we have an axis curve.
XYZ extrDirUsed = XYZ.Zero;
if (extraParams.HasExtrusionDirection)
{
extrDirUsed = extraParams.ExtrusionDirection;
if (MathUtil.IsAlmostEqual(Math.Abs(extrDirUsed[2]), 1.0))
{
if ((solids.Count == 1) && (meshes.Count == 0))
exportedAsWallWithAxis = exportingAxis;
exportedBodyDirectly = true;
}
}
}
IFCAnyHandle prodRep = null;
IList<IFCAnyHandle> representations = new List<IFCAnyHandle>();
if (exportingAxis)
representations.Add(axisRep);
representations.Add(bodyRep);
prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
string objectType = NamingUtil.CreateIFCObjectName(exporterIFC, element);
IFCAnyHandle wallHnd = null;
string elemGUID = (validRange) ? ExporterIFCUtils.CreateGUID() : ExporterIFCUtils.CreateGUID(element);
string elemName = NamingUtil.GetNameOverride(element, exporterIFC.GetName());
string elemDesc = NamingUtil.GetDescriptionOverride(element, null);
string elemObjectType = NamingUtil.GetObjectTypeOverride(element, objectType);
string elemId = NamingUtil.CreateIFCElementId(element);
if (exportedAsWallWithAxis)
{
wallHnd = IFCInstanceExporter.CreateWallStandardCase(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, exportParts ? null : prodRep, elemId);
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, wallElement, wallHnd, localWrapper, setter, localPlacement, overrideLevelId);
localWrapper.AddElement(wallHnd, setter, extraParams, true);
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, cutPairOpenings, exporterIFC, localPlacement, setter, localWrapper);
if (exportedBodyDirectly)
{
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, extraParams, exporterIFC, localPlacement, setter, localWrapper);
}
else
{
double scaledWidth = wallElement.Width * scale;
ExporterIFCUtils.AddOpeningsToElement(exporterIFC, wallHnd, wallElement, scaledWidth, range, setter, localPlacement, localWrapper);
}
// export Base Quantities
if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
{
CreateWallBaseQuantities(exporterIFC, wallElement, wallHnd, depth);
}
}
else
{
wallHnd = IFCInstanceExporter.CreateWall(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, exportParts ? null : prodRep, elemId);
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, wallElement, wallHnd, localWrapper, setter, localPlacement, overrideLevelId);
localWrapper.AddElement(wallHnd, setter, extraParams, true);
// Only export one material for 2x2; for future versions, export the whole list.
if (exporterIFC.ExportAs2x2 && (matId != ElementId.InvalidElementId) && !exportParts)
{
CategoryUtil.CreateMaterialAssociation(doc, exporterIFC, wallHnd, matId);
}
if (exportingInplaceOpenings)
{
ExporterIFCUtils.AddOpeningsToElement(exporterIFC, wallHnd, famInstWallElem, 0.0, range, setter, localPlacement, localWrapper);
}
if (exportedBodyDirectly)
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, extraParams, exporterIFC, localPlacement, setter, localWrapper);
}
PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, element, localWrapper);
ElementId wallLevelId = (validRange) ? setter.LevelId : ElementId.InvalidElementId;
if (wallElement != null && !exportParts)
{
if (!exporterIFC.ExportAs2x2 || exportedAsWallWithAxis) //will move this check into ExportHostObject
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, wallElement, localWrapper.GetAnElement(),
geometryElement, localWrapper, wallLevelId, Toolkit.IFCLayerSetDirection.Axis2);
}
exporterIFC.RegisterSpaceBoundingElementHandle(wallHnd, element.Id, wallLevelId);
return wallHnd;
}
}
}
}
private static IFCAnyHandle TryToCreateAsExtrusion(ExporterIFC exporterIFC,
Wall wallElement,
IList<IList<IFCConnectedWallData>> connectedWalls,
IList<Solid> solids,
IList<Mesh> meshes,
double baseWallElevation,
ElementId catId,
Curve baseCurve,
Curve trimmedCurve,
Plane wallLCS,
double scaledDepth,
IFCRange zSpan,
IFCRange range,
PlacementSetter setter,
out IList<IFCExtrusionData> cutPairOpenings,
out bool isCompletelyClipped,
out double scaledFootprintArea,
out double scaledLength)
{
cutPairOpenings = new List<IFCExtrusionData>();
IFCAnyHandle bodyRep;
scaledFootprintArea = 0;
double unscaledLength = trimmedCurve != null ? trimmedCurve.Length : 0;
scaledLength = UnitUtil.ScaleLength(unscaledLength);
XYZ localOrig = wallLCS.Origin;
// Check to see if the wall has geometry given the specified range.
if (!WallHasGeometryToExport(wallElement, solids, meshes, range, out isCompletelyClipped))
return null;
// This is our major check here that goes into internal code. If we have enough information to faithfully reproduce
// the wall as an extrusion with clippings and openings, we will continue. Otherwise, export it as a BRep.
if (!CanExportWallGeometryAsExtrusion(wallElement, range))
return null;
// extrusion direction.
XYZ extrusionDir = GetWallHeightDirection(wallElement);
// create extrusion boundary.
bool alwaysThickenCurve = IsWallBaseRectangular(wallElement, trimmedCurve);
double unscaledWidth = wallElement.Width;
IList<CurveLoop> boundaryLoops = GetBoundaryLoopsFromWall(exporterIFC, wallElement, alwaysThickenCurve, trimmedCurve, unscaledWidth);
if (boundaryLoops == null || boundaryLoops.Count == 0)
return null;
double fullUnscaledLength = baseCurve.Length;
double unscaledFootprintArea = ExporterIFCUtils.ComputeAreaOfCurveLoops(boundaryLoops);
scaledFootprintArea = UnitUtil.ScaleArea(unscaledFootprintArea);
// We are going to do a little sanity check here. If the scaledFootprintArea is significantly less than the
// width * length of the wall footprint, we probably calculated the area wrong, and will abort.
// This could occur because of a door or window that cuts a corner of the wall (i.e., has no wall material on one side).
// We want the scaledFootprintArea to be at least (95% of approximateBaseArea - 2 * side wall area).
// The "side wall area" is an approximate value that takes into account potential wall joins.
// This prevents us from doing extra work for many small walls because of joins. We'll allow 1' (~30 cm) per side for this.
double approximateUnscaledBaseArea = unscaledWidth * fullUnscaledLength;
if (unscaledFootprintArea < (approximateUnscaledBaseArea * .95 - 2 * unscaledWidth))
{
// Can't handle the case where we don't have a simple extrusion to begin with.
if (!alwaysThickenCurve)
return null;
boundaryLoops = GetBoundaryLoopsFromBaseCurve(wallElement, connectedWalls, baseCurve, trimmedCurve, unscaledWidth, scaledDepth);
if (boundaryLoops == null || boundaryLoops.Count == 0)
return null;
}
// origin gets scaled later.
double baseWallZOffset = localOrig[2] - ((range == null) ? baseWallElevation : Math.Min(range.Start, baseWallElevation));
XYZ modifiedSetterOffset = new XYZ(0, 0, setter.Offset + baseWallZOffset);
IFCAnyHandle baseBodyItemHnd = ExtrusionExporter.CreateExtrudedSolidFromCurveLoop(exporterIFC, null, boundaryLoops, wallLCS,
extrusionDir, scaledDepth);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(baseBodyItemHnd))
return null;
IFCAnyHandle bodyItemHnd = AddClippingsToBaseExtrusion(exporterIFC, wallElement,
modifiedSetterOffset, range, zSpan, baseBodyItemHnd, out cutPairOpenings);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyItemHnd))
return null;
bool hasClipping = bodyItemHnd.Id != baseBodyItemHnd.Id;
ElementId matId = HostObjectExporter.GetFirstLayerMaterialId(wallElement);
IFCAnyHandle styledItemHnd = BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, wallElement.Document,
baseBodyItemHnd, matId);
HashSet<IFCAnyHandle> bodyItems = new HashSet<IFCAnyHandle>();
bodyItems.Add(bodyItemHnd);
// Check whether wall has opening. If it has, exporting it in the Reference View will need to be in a tessellated geometry that includes the opening cut
IList<IFCOpeningData> openingDataList = ExporterIFCUtils.GetOpeningData(exporterIFC, wallElement, wallLCS, range);
bool wallHasOpening = openingDataList.Count > 0;
BodyExporterOptions options = new BodyExporterOptions(true);
IFCAnyHandle contextOfItemsBody = exporterIFC.Get3DContextHandle("Body");
if (!hasClipping)
{
// Check whether wall has opening. If it has, exporting it in Reference View will need to be in a tesselated geometry that includes the opening cut
if (ExporterUtil.IsReferenceView() && wallHasOpening)
{
List<GeometryObject> geomList = new List<GeometryObject>();
bodyItems.Clear(); // Since we will change the geometry, clear existing extrusion data first
if (solids.Count > 0)
foreach (GeometryObject solid in solids)
geomList.Add(solid);
if (meshes.Count > 0)
foreach (GeometryObject mesh in meshes)
geomList.Add(mesh);
foreach (GeometryObject geom in geomList)
{
IFCAnyHandle triangulatedBodyItem = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, wallElement, options, geom);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(triangulatedBodyItem))
bodyItems.Add(triangulatedBodyItem);
}
bodyRep = RepresentationUtil.CreateTessellatedRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems, null);
}
else
bodyRep = RepresentationUtil.CreateSweptSolidRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems, null);
}
else
{
// Create TessellatedRep geometry if it is Reference View.
if (ExporterUtil.IsReferenceView())
{
List<GeometryObject> geomList = new List<GeometryObject>();
// The native function AddClippingsToBaseExtrusion will create the IfcBooleanClippingResult entity and therefore here we need to delete it
foreach (IFCAnyHandle item in bodyItems)
{
item.Dispose(); //Still DOES NOT work, the IfcBooleanClippingResult is still orphaned in the IFC file!
}
bodyItems.Clear(); // Since we will change the geometry, clear existing extrusion data first
if (solids.Count > 0)
foreach (GeometryObject solid in solids)
geomList.Add(solid);
if (meshes.Count > 0)
foreach (GeometryObject mesh in meshes)
geomList.Add(mesh);
foreach (GeometryObject geom in geomList)
{
IFCAnyHandle triangulatedBodyItem = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, wallElement, options, geom);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(triangulatedBodyItem))
bodyItems.Add(triangulatedBodyItem);
}
bodyRep = RepresentationUtil.CreateTessellatedRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems, null);
}
else
bodyRep = RepresentationUtil.CreateClippingRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems);
}
return bodyRep;
}
/// <summary>
/// Export the dummy wall to host an orphan part. It usually happens in the cases of associated parts are higher than split sub-wall.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The wall element.</param>
/// <param name="geometryElement">The geometry of wall.</param>
/// <param name="origWrapper">The IFCProductWrapper.</param>
/// <param name="overrideLevelId">The ElementId that will crate the dummy wall.</param>
/// <param name="range">The IFCRange corresponding to the dummy wall.</param>
/// <returns>The handle of dummy wall.</returns>
public static IFCAnyHandle ExportDummyWall(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
IFCProductWrapper origWrapper, ElementId overrideLevelId, IFCRange range)
{
using (IFCProductWrapper localWrapper = IFCProductWrapper.Create(origWrapper))
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
Wall wallElement = element as Wall;
if (wallElement == null)
return null;
if (wallElement != null && IsWallCompletelyClipped(wallElement, exporterIFC, range))
return null;
// get global values.
Document doc = element.Document;
double scale = exporterIFC.LinearScale;
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
bool exportParts = PartExporter.CanExportParts(wallElement);
if (exportParts && !PartExporter.CanExportElementInPartExport(wallElement, validRange ? overrideLevelId : wallElement.Level.Id, validRange))
return null;
string objectType = NamingUtil.CreateIFCObjectName(exporterIFC, element);
IFCAnyHandle wallHnd = null;
string elemGUID = (validRange) ? ExporterIFCUtils.CreateGUID() : ExporterIFCUtils.CreateGUID(element);
string elemName = NamingUtil.GetNameOverride(element, exporterIFC.GetName());
string elemDesc = NamingUtil.GetDescriptionOverride(element, null);
string elemObjectType = NamingUtil.GetObjectTypeOverride(element, objectType);
string elemId = NamingUtil.CreateIFCElementId(element);
Transform orientationTrf = Transform.Identity;
using (IFCPlacementSetter setter = IFCPlacementSetter.Create(exporterIFC, element, null, orientationTrf, overrideLevelId))
{
IFCAnyHandle localPlacement = setter.GetPlacement();
wallHnd = IFCInstanceExporter.CreateWall(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, null, elemId);
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, wallElement, wallHnd, localWrapper, setter, localPlacement, overrideLevelId);
IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData();
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ; // only allow vertical extrusions!
extraParams.AreInnerRegionsOpenings = true;
localWrapper.AddElement(wallHnd, setter, extraParams, true);
PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, element, localWrapper);
ElementId wallLevelId = (validRange) ? setter.LevelId : ElementId.InvalidElementId;
exporterIFC.RegisterSpaceBoundingElementHandle(wallHnd, element.Id, wallLevelId);
}
return wallHnd;
}
}
// Get a list of solids and meshes, but only if we haven't already done so.
private static void GetSolidsAndMeshes(GeometryElement geometryElement, IFCRange range, ref IList<Solid> solids, ref IList<Mesh> meshes)
{
if (solids.Count > 0 || meshes.Count > 0)
return;
SolidMeshGeometryInfo solidMeshInfo =
(range == null) ? GeometryUtil.GetSplitSolidMeshGeometry(geometryElement) :
GeometryUtil.GetSplitClippedSolidMeshGeometry(geometryElement, range);
solids = solidMeshInfo.GetSolids();
meshes = solidMeshInfo.GetMeshes();
}
/// <summary>
/// Identifies if the base geometry of the wall can be represented as an extrusion.
/// </summary>
/// <param name="element">
/// The wall element.
/// </param>
/// <param name="range">
/// The range. This consists of two double values representing the height in Z at the start and the end
/// of the range. If the values are identical the entire wall is used.
/// </param>
/// <returns>
/// True if the wall export can be made in the form of an extrusion, false if the
/// geometry cannot be assigned to an extrusion.
/// </returns>
static bool CanExportWallGeometryAsExtrusion(Element element, IFCRange range)
{
return ExporterIFCUtils.CanExportWallGeometryAsExtrusion(element, range);
}
/// <summary>
/// Main implementation to export walls.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="connectedWalls">Information about walls joined to this wall.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="origWrapper">The ProductWrapper.</param>
/// <param name="overrideLevelId">The level id.</param>
/// <param name="range">The range to be exported for the element.</param>
/// <returns>The exported wall handle.</returns>
public static IFCAnyHandle ExportWallBase(ExporterIFC exporterIFC, Element element, IList<IList<IFCConnectedWallData>> connectedWalls,
GeometryElement geometryElement, ProductWrapper origWrapper, ElementId overrideLevelId, IFCRange range)
{
// Check cases where we choose not to export early.
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
Wall wallElement = element as Wall;
FamilyInstance famInstWallElem = element as FamilyInstance;
FaceWall faceWall = element as FaceWall;
bool exportingWallElement = (wallElement != null);
bool exportingFamilyInstance = (famInstWallElem != null);
bool exportingFaceWall = (faceWall != null);
if (!exportingWallElement && !exportingFamilyInstance && !exportingFaceWall)
return null;
if (exportingWallElement && IsWallCompletelyClipped(wallElement, exporterIFC, range))
return null;
IFCRange zSpan = null;
double depth = 0.0;
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, validRange ? overrideLevelId : element.LevelId, validRange))
return null;
IList<Solid> solids = new List<Solid>();
IList<Mesh> meshes = new List<Mesh>();
bool exportingInplaceOpenings = false;
if (!exportParts)
{
if (exportingWallElement || exportingFaceWall)
{
GetSolidsAndMeshes(geometryElement, range, ref solids, ref meshes);
if (solids.Count == 0 && meshes.Count == 0)
return null;
}
else
{
GeometryElement geomElemToUse = GetGeometryFromInplaceWall(famInstWallElem);
if (geomElemToUse != null)
{
exportingInplaceOpenings = true;
}
else
{
exportingInplaceOpenings = false;
geomElemToUse = geometryElement;
}
Transform trf = Transform.Identity;
if (geomElemToUse != geometryElement)
trf = famInstWallElem.GetTransform();
SolidMeshGeometryInfo solidMeshCapsule = GeometryUtil.GetSplitSolidMeshGeometry(geomElemToUse, trf);
solids = solidMeshCapsule.GetSolids();
meshes = solidMeshCapsule.GetMeshes();
}
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (ProductWrapper localWrapper = ProductWrapper.Create(origWrapper))
{
// get bounding box height so that we can subtract out pieces properly.
// only for Wall, not FamilyInstance.
if (exportingWallElement && geometryElement != null)
{
// There is a problem in the API where some walls with vertical structures are overreporting their height,
// making it appear as if there are clipping problems on export. We will work around this by getting the
// height directly from the solid(s).
if (solids.Count > 0 && meshes.Count == 0)
{
zSpan = GetBoundingBoxOfSolids(solids);
}
else
{
BoundingBoxXYZ boundingBox = wallElement.get_BoundingBox(null);
if (boundingBox != null)
zSpan = GetBoundingBoxZRange(boundingBox);
}
if (zSpan == null)
return null;
// if we have a top clipping plane, modify depth accordingly.
double bottomHeight = validRange ? Math.Max(zSpan.Start, range.Start) : zSpan.Start;
double topHeight = validRange ? Math.Min(zSpan.End, range.End) : zSpan.End;
depth = topHeight - bottomHeight;
if (MathUtil.IsAlmostZero(depth))
return null;
depth = UnitUtil.ScaleLength(depth);
}
else
{
zSpan = new IFCRange();
}
Document doc = element.Document;
double baseWallElevation = 0.0;
ElementId baseLevelId = PlacementSetter.GetBaseLevelIdForElement(element);
if (baseLevelId != ElementId.InvalidElementId)
{
Element baseLevel = doc.GetElement(baseLevelId);
if (baseLevel is Level)
baseWallElevation = (baseLevel as Level).Elevation;
}
IFCAnyHandle axisRep = null;
IFCAnyHandle bodyRep = null;
bool exportingAxis = false;
Curve trimmedCurve = null;
bool exportedAsWallWithAxis = false;
bool exportedBodyDirectly = false;
Curve centerCurve = GetWallAxis(wallElement);
XYZ localXDir = new XYZ(1, 0, 0);
XYZ localYDir = new XYZ(0, 1, 0);
XYZ localZDir = new XYZ(0, 0, 1);
XYZ localOrig = new XYZ(0, 0, 0);
double eps = MathUtil.Eps();
if (centerCurve != null)
{
Curve baseCurve = GetWallAxisAtBaseHeight(wallElement);
trimmedCurve = GetWallTrimmedCurve(wallElement, baseCurve);
IFCRange curveBounds;
XYZ oldOrig;
GeometryUtil.GetAxisAndRangeFromCurve(trimmedCurve, out curveBounds, out localXDir, out oldOrig);
// Move the curve to the bottom of the geometry or the bottom of the range, which is higher.
if (baseCurve != null)
localOrig = new XYZ(oldOrig.X, oldOrig.Y, validRange ? Math.Max(range.Start, zSpan.Start) : zSpan.Start);
else
localOrig = oldOrig;
double dist = localOrig[2] - oldOrig[2];
if (!MathUtil.IsAlmostZero(dist))
{
XYZ moveVec = new XYZ(0, 0, dist);
trimmedCurve = GeometryUtil.MoveCurve(trimmedCurve, moveVec);
}
localYDir = localZDir.CrossProduct(localXDir);
// ensure that X and Z axes are orthogonal.
double xzDot = localZDir.DotProduct(localXDir);
if (!MathUtil.IsAlmostZero(xzDot))
localXDir = localYDir.CrossProduct(localZDir);
}
else
{
BoundingBoxXYZ boundingBox = element.get_BoundingBox(null);
if (boundingBox != null)
{
XYZ bBoxMin = boundingBox.Min;
XYZ bBoxMax = boundingBox.Max;
if (validRange)
localOrig = new XYZ(bBoxMin.X, bBoxMin.Y, range.Start);
else
localOrig = boundingBox.Min;
XYZ localXDirMax = null;
Transform bTrf = boundingBox.Transform;
XYZ localXDirMax1 = new XYZ(bBoxMax.X, localOrig.Y, localOrig.Z);
localXDirMax1 = bTrf.OfPoint(localXDirMax1);
XYZ localXDirMax2 = new XYZ(localOrig.X, bBoxMax.Y, localOrig.Z);
localXDirMax2 = bTrf.OfPoint(localXDirMax2);
if (localXDirMax1.DistanceTo(localOrig) >= localXDirMax2.DistanceTo(localOrig))
localXDirMax = localXDirMax1;
else
localXDirMax = localXDirMax2;
localXDir = localXDirMax.Subtract(localOrig);
localXDir = localXDir.Normalize();
localYDir = localZDir.CrossProduct(localXDir);
// ensure that X and Z axes are orthogonal.
double xzDot = localZDir.DotProduct(localXDir);
if (!MathUtil.IsAlmostZero(xzDot))
localXDir = localYDir.CrossProduct(localZDir);
}
}
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
Transform orientationTrf = Transform.Identity;
orientationTrf.BasisX = localXDir;
orientationTrf.BasisY = localYDir;
orientationTrf.BasisZ = localZDir;
orientationTrf.Origin = localOrig;
double scaledFootprintArea = 0;
double scaledLength = 0;
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, orientationTrf, overrideLevelId))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
// The local coordinate system of the wall as defined by IFC for IfcWallStandardCase.
Plane wallLCS = new Plane(localXDir, localYDir, localOrig); // project curve to XY plane.
XYZ projDir = XYZ.BasisZ;
// two representations: axis, body.
{
if (!exportParts && (centerCurve != null) && (GeometryUtil.CurveIsLineOrArc(centerCurve)))
{
exportingAxis = true;
string identifierOpt = "Axis"; // IFC2x2 convention
string representationTypeOpt = "Curve2D"; // IFC2x2 convention
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, wallLCS, projDir, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, trimmedCurve, XYZ.Zero, true);
IList<IFCAnyHandle> axisItems = info.GetCurves();
if (axisItems.Count == 0)
{
exportingAxis = false;
}
else
{
HashSet<IFCAnyHandle> axisItemSet = new HashSet<IFCAnyHandle>();
foreach (IFCAnyHandle axisItem in axisItems)
axisItemSet.Add(axisItem);
IFCAnyHandle contextOfItemsAxis = exporterIFC.Get3DContextHandle("Axis");
axisRep = RepresentationUtil.CreateShapeRepresentation(exporterIFC, element, catId, contextOfItemsAxis,
identifierOpt, representationTypeOpt, axisItemSet);
}
}
}
IList<IFCExtrusionData> cutPairOpenings = new List<IFCExtrusionData>();
if (!exportParts && exportingWallElement && exportingAxis && trimmedCurve != null)
{
bool isCompletelyClipped;
bodyRep = TryToCreateAsExtrusion(exporterIFC, wallElement, connectedWalls, solids, meshes, baseWallElevation,
catId, centerCurve, trimmedCurve, wallLCS, depth, zSpan, range, setter,
out cutPairOpenings, out isCompletelyClipped, out scaledFootprintArea, out scaledLength);
if (isCompletelyClipped)
return null;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
exportedAsWallWithAxis = true;
}
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
BodyData bodyData = null;
if (!exportedAsWallWithAxis)
{
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ; // only allow vertical extrusions!
extraParams.AreInnerRegionsOpenings = true;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
// Swept solids are not natively exported as part of CV2.0.
// We have removed the UI toggle for this, so that it is by default false, but keep for possible future use.
if (ExporterCacheManager.ExportOptionsCache.ExportAdvancedSweptSolids)
bodyExporterOptions.TryToExportAsSweptSolid = true;
ElementId overrideMaterialId = ElementId.InvalidElementId;
if (exportingWallElement)
overrideMaterialId = HostObjectExporter.GetFirstLayerMaterialId(wallElement);
if (!exportParts)
{
if ((solids.Count > 0) || (meshes.Count > 0))
{
bodyRep = BodyExporter.ExportBody(exporterIFC, element, catId, overrideMaterialId,
solids, meshes, bodyExporterOptions, extraParams).RepresentationHnd;
}
else
{
IList<GeometryObject> geomElemList = new List<GeometryObject>();
geomElemList.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, overrideMaterialId,
geomElemList, bodyExporterOptions, extraParams);
bodyRep = bodyData.RepresentationHnd;
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extraParams.ClearOpenings();
return null;
}
}
// We will be able to export as a IfcWallStandardCase as long as we have an axis curve.
XYZ extrDirUsed = XYZ.Zero;
if (extraParams.HasExtrusionDirection)
{
extrDirUsed = extraParams.ExtrusionDirection;
if (MathUtil.IsAlmostEqual(Math.Abs(extrDirUsed[2]), 1.0))
{
if ((solids.Count == 1) && (meshes.Count == 0))
exportedAsWallWithAxis = exportingAxis;
exportedBodyDirectly = true;
}
}
}
IFCAnyHandle prodRep = null;
if (!exportParts)
{
IList<IFCAnyHandle> representations = new List<IFCAnyHandle>();
if (exportingAxis)
representations.Add(axisRep);
representations.Add(bodyRep);
IFCAnyHandle boundingBoxRep = null;
if ((solids.Count > 0) || (meshes.Count > 0))
boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, solids, meshes, Transform.Identity);
else
boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
representations.Add(boundingBoxRep);
prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
}
ElementId matId = ElementId.InvalidElementId;
string objectType = NamingUtil.CreateIFCObjectName(exporterIFC, element);
IFCAnyHandle wallHnd = null;
string elemGUID = null;
int subElementIndex = ExporterStateManager.GetCurrentRangeIndex();
if (subElementIndex == 0)
elemGUID = GUIDUtil.CreateGUID(element);
else if (subElementIndex <= ExporterStateManager.RangeIndexSetter.GetMaxStableGUIDs())
elemGUID = GUIDUtil.CreateSubElementGUID(element, subElementIndex + (int)IFCGenericSubElements.SplitInstanceStart - 1);
else
elemGUID = GUIDUtil.CreateGUID();
string elemName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string elemDesc = NamingUtil.GetDescriptionOverride(element, null);
string elemObjectType = NamingUtil.GetObjectTypeOverride(element, objectType);
string elemTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string ifcType = IFCValidateEntry.GetValidIFCType(element, null);
// For Foundation and Retaining walls, allow exporting as IfcFooting instead.
bool exportAsFooting = false;
if (exportingWallElement)
{
WallType wallType = wallElement.WallType;
if (wallType != null)
{
int wallFunction;
if (ParameterUtil.GetIntValueFromElement(wallType, BuiltInParameter.FUNCTION_PARAM, out wallFunction) != null)
{
if (wallFunction == (int)WallFunction.Retaining || wallFunction == (int)WallFunction.Foundation)
{
// In this case, allow potential to export foundation and retaining walls as footing.
string enumTypeValue = null;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, wallElement, out enumTypeValue);
if (exportType == IFCExportType.IfcFooting)
exportAsFooting = true;
}
}
}
}
if (exportedAsWallWithAxis)
{
if (exportAsFooting)
{
wallHnd = IFCInstanceExporter.CreateFooting(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, exportParts ? null : prodRep, elemTag, ifcType);
}
else
{
bool exportAsWall = exportParts;
if (!exportAsWall)
{
// (For Reference View export) If the representation returned earlier is of type Tessellation, create IfcWall instead.
foreach (IFCAnyHandle pRep in IFCAnyHandleUtil.GetRepresentations(prodRep))
{
if (String.Compare(IFCAnyHandleUtil.GetRepresentationType(pRep), "Tessellation") == 0)
{
exportAsWall = true;
break;
}
}
}
if (exportAsWall)
{
wallHnd = IFCInstanceExporter.CreateWall(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, null, elemTag, ifcType);
}
else
{
wallHnd = IFCInstanceExporter.CreateWallStandardCase(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, prodRep, elemTag, ifcType);
}
}
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, element, wallHnd, localWrapper, setter, localPlacement, overrideLevelId);
localWrapper.AddElement(element, wallHnd, setter, extraParams, true);
if (!exportParts)
{
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, cutPairOpenings, null,
exporterIFC, localPlacement, setter, localWrapper);
if (exportedBodyDirectly)
{
Transform offsetTransform = (bodyData != null) ? bodyData.OffsetTransform : Transform.Identity;
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, extraParams, offsetTransform,
exporterIFC, localPlacement, setter, localWrapper);
}
else
{
double scaledWidth = UnitUtil.ScaleLength(wallElement.Width);
OpeningUtil.AddOpeningsToElement(exporterIFC, wallHnd, wallElement, null, scaledWidth, range, setter, localPlacement, localWrapper);
}
}
// export Base Quantities
if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
{
scaledFootprintArea = MathUtil.AreaIsAlmostZero(scaledFootprintArea) ? extraParams.ScaledArea : scaledFootprintArea;
scaledLength = MathUtil.IsAlmostZero(scaledLength) ? extraParams.ScaledLength : scaledLength;
PropertyUtil.CreateWallBaseQuantities(exporterIFC, wallElement, solids, meshes, wallHnd, scaledLength, depth, scaledFootprintArea);
}
}
else
{
if (exportAsFooting)
{
wallHnd = IFCInstanceExporter.CreateFooting(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, exportParts ? null : prodRep, elemTag, ifcType);
}
else
{
wallHnd = IFCInstanceExporter.CreateWall(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, exportParts ? null : prodRep, elemTag, ifcType);
}
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, element, wallHnd, localWrapper, setter, localPlacement, overrideLevelId);
localWrapper.AddElement(element, wallHnd, setter, extraParams, true);
if (!exportParts)
{
// Only export one material for 2x2; for future versions, export the whole list.
if (ExporterCacheManager.ExportOptionsCache.ExportAs2x2 || exportingFamilyInstance)
{
matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(solids, meshes, element);
if (matId != ElementId.InvalidElementId)
CategoryUtil.CreateMaterialAssociation(exporterIFC, wallHnd, matId);
}
if (exportingInplaceOpenings)
{
OpeningUtil.AddOpeningsToElement(exporterIFC, wallHnd, famInstWallElem, null, 0.0, range, setter, localPlacement, localWrapper);
}
if (exportedBodyDirectly)
{
Transform offsetTransform = (bodyData != null) ? bodyData.OffsetTransform : Transform.Identity;
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, extraParams, offsetTransform,
exporterIFC, localPlacement, setter, localWrapper);
}
}
}
ElementId wallLevelId = (validRange) ? setter.LevelId : ElementId.InvalidElementId;
if ((exportingWallElement || exportingFaceWall) && !exportParts)
{
HostObject hostObject = null;
if (exportingWallElement)
hostObject = wallElement;
else
hostObject = faceWall;
if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2 || exportedAsWallWithAxis)
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, hostObject, localWrapper.GetAnElement(),
geometryElement, localWrapper, wallLevelId, Toolkit.IFCLayerSetDirection.Axis2, !exportedAsWallWithAxis);
}
ExportWallType(exporterIFC, localWrapper, wallHnd, element, matId, exportedAsWallWithAxis, exportAsFooting);
SpaceBoundingElementUtil.RegisterSpaceBoundingElementHandle(exporterIFC, wallHnd, element.Id, wallLevelId);
tr.Commit();
return wallHnd;
}
}
}
}
}
/// <summary>
/// Export the individual part (IfcBuildingElementPart).
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="partElement">The part element to export.</param>
/// <param name="geometryElement">The geometry of part.</param>
/// <param name="productWrapper">The ProductWrapper object.</param>
public static void ExportPart(ExporterIFC exporterIFC, Element partElement, ProductWrapper productWrapper,
PlacementSetter placementSetter, IFCAnyHandle originalPlacement, IFCRange range, IFCExtrusionAxes ifcExtrusionAxes,
Element hostElement, ElementId overrideLevelId, bool asBuildingElement)
{
if (!ElementFilteringUtil.IsElementVisible(partElement))
{
return;
}
Part part = partElement as Part;
if (part == null)
{
return;
}
if (!asBuildingElement)
{
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum;
if (Enum.TryParse <Common.Enums.IFCEntityType>("IfcBuildingElementPart", out elementClassTypeEnum))
{
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
}
else
{
string ifcEnumType = null;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum;
if (Enum.TryParse <Common.Enums.IFCEntityType>(exportType.ToString(), out elementClassTypeEnum))
{
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
}
PlacementSetter standalonePlacementSetter = null;
bool standaloneExport = hostElement == null && !asBuildingElement;
ElementId partExportLevel = null;
if (standaloneExport || asBuildingElement)
{
partExportLevel = partElement.LevelId;
}
else
{
if (part.OriginalCategoryId != hostElement.Category.Id)
{
return;
}
partExportLevel = hostElement.LevelId;
}
if (overrideLevelId != null)
{
partExportLevel = overrideLevelId;
}
if (ExporterCacheManager.PartExportedCache.HasExported(partElement.Id, partExportLevel))
{
return;
}
Options options = GeometryUtil.GetIFCExportGeometryOptions();
View ownerView = partElement.Document.GetElement(partElement.OwnerViewId) as View;
if (ownerView != null)
{
options.View = ownerView;
}
GeometryElement geometryElement = partElement.get_Geometry(options);
if (geometryElement == null)
{
return;
}
try
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
IFCAnyHandle partPlacement = null;
if (standaloneExport || asBuildingElement)
{
Transform orientationTrf = Transform.Identity;
standalonePlacementSetter = PlacementSetter.Create(exporterIFC, partElement, null, orientationTrf, partExportLevel);
partPlacement = standalonePlacementSetter.LocalPlacement;
}
else
{
partPlacement = ExporterUtil.CreateLocalPlacement(file, originalPlacement, null);
}
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
SolidMeshGeometryInfo solidMeshInfo;
if (validRange)
{
solidMeshInfo = GeometryUtil.GetSplitClippedSolidMeshGeometry(geometryElement, range);
if (solidMeshInfo.GetSolids().Count == 0 && solidMeshInfo.GetMeshes().Count == 0)
{
return;
}
}
else
{
solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
}
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(partPlacement);
extrusionCreationData.ReuseLocalPlacement = false;
extrusionCreationData.PossibleExtrusionAxes = ifcExtrusionAxes;
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
ElementId catId = CategoryUtil.GetSafeCategoryId(partElement);
ElementId hostCatId = CategoryUtil.GetSafeCategoryId(hostElement);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, solids, meshes,
bodyExporterOptions, extrusionCreationData);
}
else
{
IList <GeometryObject> geomlist = new List <GeometryObject>();
geomlist.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, geomlist,
bodyExporterOptions, extrusionCreationData);
}
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extrusionCreationData.ClearOpenings();
return;
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(bodyRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
string partGUID = GUIDUtil.CreateGUID(partElement);
string partName = NamingUtil.GetNameOverride(partElement, NamingUtil.GetIFCName(partElement));
string partDescription = NamingUtil.GetDescriptionOverride(partElement, null);
string partObjectType = NamingUtil.GetObjectTypeOverride(partElement, NamingUtil.CreateIFCObjectName(exporterIFC, partElement));
string partTag = NamingUtil.GetTagOverride(partElement, NamingUtil.CreateIFCElementId(partElement));
IFCAnyHandle ifcPart = null;
if (!asBuildingElement)
{
ifcPart = IFCInstanceExporter.CreateBuildingElementPart(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partTag);
}
else
{
string ifcEnumType = null;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
string defaultValue = null;
// This replicates old functionality before IFC4 addition, where the default for slab was "FLOOR".
// Really the export layer table should be fixed for this case.
if (string.IsNullOrWhiteSpace(ifcEnumType) && hostCatId == new ElementId(BuiltInCategory.OST_Floors))
{
ifcEnumType = "FLOOR";
}
ifcEnumType = IFCValidateEntry.GetValidIFCType(hostElement, ifcEnumType, defaultValue);
switch (exportType)
{
case IFCExportType.IfcColumnType:
ifcPart = IFCInstanceExporter.CreateColumn(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcCovering:
ifcPart = IFCInstanceExporter.CreateCovering(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcFooting:
ifcPart = IFCInstanceExporter.CreateFooting(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcPile:
ifcPart = IFCInstanceExporter.CreatePile(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType, null);
break;
case IFCExportType.IfcRoof:
ifcPart = IFCInstanceExporter.CreateRoof(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcSlab:
ifcPart = IFCInstanceExporter.CreateSlab(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcWall:
ifcPart = IFCInstanceExporter.CreateWall(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
default:
ifcPart = IFCInstanceExporter.CreateBuildingElementProxy(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partTag, null);
break;
}
}
bool containedInLevel = (standaloneExport || asBuildingElement);
PlacementSetter whichPlacementSetter = containedInLevel ? standalonePlacementSetter : placementSetter;
productWrapper.AddElement(partElement, ifcPart, whichPlacementSetter, extrusionCreationData, containedInLevel);
OpeningUtil.CreateOpeningsIfNecessary(ifcPart, partElement, extrusionCreationData, bodyData.OffsetTransform, exporterIFC,
extrusionCreationData.GetLocalPlacement(), whichPlacementSetter, productWrapper);
//Add the exported part to exported cache.
TraceExportedParts(partElement, partExportLevel, standaloneExport || asBuildingElement ? ElementId.InvalidElementId : hostElement.Id);
CategoryUtil.CreateMaterialAssociation(exporterIFC, ifcPart, bodyData.MaterialIds);
transaction.Commit();
}
}
}
finally
{
if (standalonePlacementSetter != null)
{
standalonePlacementSetter.Dispose();
}
}
}
/// <summary>
/// Adds openings to an element.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="elementHandles">The parent handles.</param>
/// <param name="curveLoops">The parent CurveLoops.</param>
/// <param name="element">The element.</param>
/// <param name="plane">The plane.</param>
/// <param name="scaledWidth">The width.</param>
/// <param name="range">The range.</param>
/// <param name="setter">The placement setter.</param>
/// <param name="localPlacement">The local placement.</param>
/// <param name="localWrapper">The wrapper.</param>
public static void AddOpeningsToElement(ExporterIFC exporterIFC, IList<IFCAnyHandle> elementHandles, IList<CurveLoop> curveLoops, Element element, Plane plane, double scaledWidth,
IFCRange range, PlacementSetter setter, IFCAnyHandle localPlacement, ProductWrapper localWrapper)
{
IList<IFCOpeningData> openingDataList = ExporterIFCUtils.GetOpeningData(exporterIFC, element, plane, range);
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
foreach (IFCOpeningData openingData in openingDataList)
{
Element openingElem = element.Document.GetElement(openingData.OpeningElementId);
if (openingElem == null)
openingElem = element;
// Don't export the opening if WallSweep category has been turned off.
// This is currently restricted to WallSweeps because the element responsible for the opening could be a variety of things, including a line as part of the elevation profile of the wall.
// As such, we will restrict which element types we check for CanExportElement.
if ((openingElem is WallSweep) && (!ElementFilteringUtil.CanExportElement(exporterIFC, openingElem, true)))
continue;
IList<IFCExtrusionData> extrusionDataList = openingData.GetExtrusionData();
IFCAnyHandle parentHandle = null;
if (elementHandles.Count > 1 && extrusionDataList.Count > 0)
{
parentHandle = FindParentHandle(elementHandles, curveLoops, extrusionDataList[0].GetLoops()[0]);
}
if (parentHandle == null)
parentHandle = elementHandles[0];
bool isDoorOrWindowOpening = IsDoorOrWindowOpening(exporterIFC, openingElem, element);
if (isDoorOrWindowOpening)
{
DoorWindowDelayedOpeningCreator delayedCreator =
DoorWindowDelayedOpeningCreator.Create(exporterIFC, openingData, scaledWidth, element.Id, parentHandle, setter.LevelId);
if (delayedCreator != null)
{
ExporterCacheManager.DoorWindowDelayedOpeningCreatorCache.Add(delayedCreator);
continue;
}
}
bool canUseElementGUID = !isDoorOrWindowOpening;
IList<Solid> solids = openingData.GetOpeningSolids();
foreach (Solid solid in solids)
{
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(ExporterUtil.CreateLocalPlacement(file, localPlacement, null));
extrusionCreationData.ReuseLocalPlacement = true;
string openingGUID = null;
if (canUseElementGUID)
{
openingGUID = GUIDUtil.CreateGUID(openingElem);
canUseElementGUID = false;
}
else
openingGUID = GUIDUtil.CreateGUID();
CreateOpening(exporterIFC, parentHandle, element, openingElem, openingGUID, solid, scaledWidth, openingData.IsRecess, extrusionCreationData,
setter, localWrapper);
}
}
foreach (IFCExtrusionData extrusionData in extrusionDataList)
{
if (extrusionData.ScaledExtrusionLength < MathUtil.Eps())
extrusionData.ScaledExtrusionLength = scaledWidth;
string openingGUID = null;
if (canUseElementGUID)
{
openingGUID = GUIDUtil.CreateGUID(element);
canUseElementGUID = false;
}
else
openingGUID = GUIDUtil.CreateGUID();
CreateOpening(exporterIFC, parentHandle, localPlacement, element, openingElem, openingGUID, extrusionData, plane, openingData.IsRecess,
setter, localWrapper);
}
}
}
/// <summary>
/// Exports a family instance as a mapped item.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="familyInstance">
/// The family instance to be exported.
/// </param>
/// <param name="exportType">
/// The export type.
/// </param>
/// <param name="ifcEnumType">
/// The string value represents the IFC type.
/// </param>
/// <param name="wrapper">
/// The ProductWrapper.
/// </param>
/// <param name="overrideLevelId">
/// The level id.
/// </param>
/// <param name="range">
/// The range of this family instance to be exported.
/// </param>
public static void ExportFamilyInstanceAsMappedItem(ExporterIFC exporterIFC,
FamilyInstance familyInstance, IFCExportType exportType, string ifcEnumType,
ProductWrapper wrapper, ElementId overrideLevelId, IFCRange range, IFCAnyHandle parentLocalPlacement)
{
bool exportParts = PartExporter.CanExportParts(familyInstance);
bool isSplit = range != null;
if (exportParts && !PartExporter.CanExportElementInPartExport(familyInstance, isSplit ? overrideLevelId : familyInstance.Level.Id, isSplit))
return;
Document doc = familyInstance.Document;
IFCFile file = exporterIFC.GetFile();
FamilySymbol familySymbol = ExporterIFCUtils.GetOriginalSymbol(familyInstance);
if (familySymbol == null)
return;
ProductWrapper familyProductWrapper = ProductWrapper.Create(wrapper);
double scale = exporterIFC.LinearScale;
Options options = GeometryUtil.GetIFCExportGeometryOptions();
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
HostObject hostElement = familyInstance.Host as HostObject; //hostElement could be null
ElementId categoryId = CategoryUtil.GetSafeCategoryId(familySymbol);
//string emptyString = "";
string familyName = familySymbol.Name;
string objectType = familyName;
// A Family Instance can have its own copy of geometry, or use the symbol's copy with a transform.
// The routine below tells us whether to use the Instance's copy or the Symbol's copy.
bool useInstanceGeometry = ExporterIFCUtils.UsesInstanceGeometry(familyInstance);
IList<IFCExtrusionData> cutPairOpeningsForColumns = new List<IFCExtrusionData>();
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
Transform trf = familyInstance.GetTransform();
// Extra information if we are exporting a door or a window.
IFCDoorWindowInfo doorWindowInfo = null;
if (exportType == IFCExportType.ExportDoorType)
doorWindowInfo = IFCDoorWindowInfo.CreateDoorInfo(exporterIFC, familyInstance, familySymbol, hostElement, overrideLevelId, trf);
else if (exportType == IFCExportType.ExportWindowType)
doorWindowInfo = IFCDoorWindowInfo.CreateWindowInfo(exporterIFC, familyInstance, familySymbol, hostElement, overrideLevelId, trf);
FamilyTypeInfo typeInfo = new FamilyTypeInfo();
XYZ extraOffset = XYZ.Zero;
bool flipped = doorWindowInfo != null ? doorWindowInfo.IsSymbolFlipped : false;
FamilyTypeInfo currentTypeInfo = ExporterCacheManager.TypeObjectsCache.Find(familySymbol.Id, flipped);
bool found = currentTypeInfo.IsValid();
Family family = familySymbol.Family;
// TODO: this code to be removed by ExtrusionAnalyzer code.
bool trySpecialColumnCreation = ((exportType == IFCExportType.ExportColumnType) && (!family.IsInPlace));
IList<GeometryObject> geomObjects = new List<GeometryObject>();
Transform brepOffsetTransform = null;
Transform doorWindowTrf = Transform.Identity;
// We will create a new mapped type if:
// 1. We are exporting part of a column or in-place wall (range != null), OR
// 2. We are using the instance's copy of the geometry (that it, it has unique geometry), OR
// 3. We haven't already created the type.
bool creatingType = ((range != null) || useInstanceGeometry || !found);
if (creatingType)
{
IFCAnyHandle bodyRepresentation = null;
IFCAnyHandle planRepresentation = null;
// If we are using the instance geometry, ignore the transformation.
if (useInstanceGeometry)
trf = Transform.Identity;
// TODO: this code to be removed by ExtrusionAnalyzer code.
if (trySpecialColumnCreation)
{
XYZ rangeOffset = trf.Origin;
IFCFamilyInstanceExtrusionExportResults results;
results = ExporterIFCUtils.ExportFamilyInstanceAsExtrusion(exporterIFC, familyInstance, useInstanceGeometry, range, overrideLevelId, extraParams);
bodyRepresentation = results.GetExtrusionHandle();
extraOffset = results.ExtraOffset;
cutPairOpeningsForColumns = results.GetCutPairOpenings();
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRepresentation))
{
typeInfo.MaterialIds.Add(results.MaterialId);
// add in level for real columns, not in-place ones.
Element actualLevel =
(overrideLevelId == ElementId.InvalidElementId) ? familyInstance.Level : doc.GetElement(overrideLevelId);
if (actualLevel != null)
{
IFCLevelInfo levelInfo = exporterIFC.GetLevelInfo(actualLevel.Id);
double nonStoryLevelOffset = LevelUtil.GetNonStoryLevelOffsetIfAny(exporterIFC, actualLevel as Level);
if (range != null)
{
rangeOffset = new XYZ(rangeOffset.X, rangeOffset.Y, levelInfo.Elevation + nonStoryLevelOffset);
}
}
}
rangeOffset += extraOffset;
trf.Origin = rangeOffset;
}
IFCAnyHandle dummyPlacement = null;
if (doorWindowInfo != null)
{
doorWindowTrf = ExporterIFCUtils.GetTransformForDoorOrWindow(familyInstance, familySymbol, doorWindowInfo);
}
else
{
dummyPlacement = IFCInstanceExporter.CreateLocalPlacement(file, null, ExporterUtil.CreateAxis2Placement3D(file));
extraParams.SetLocalPlacement(dummyPlacement);
}
bool needToCreate2d = ExporterCacheManager.ExportOptionsCache.ExportAnnotations;
bool needToCreate3d = IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRepresentation);
if (needToCreate2d || needToCreate3d)
{
using (IFCTransformSetter trfSetter = IFCTransformSetter.Create())
{
if (doorWindowInfo != null)
{
trfSetter.Initialize(exporterIFC, doorWindowTrf);
}
GeometryElement exportGeometry =
useInstanceGeometry ? familyInstance.get_Geometry(options) : familySymbol.get_Geometry(options);
if (exportGeometry == null)
return;
if (needToCreate3d)
{
SolidMeshGeometryInfo solidMeshCapsule = null;
if (range == null)
{
solidMeshCapsule = GeometryUtil.GetSolidMeshGeometry(exportGeometry, Transform.Identity);
}
else
{
solidMeshCapsule = GeometryUtil.GetClippedSolidMeshGeometry(exportGeometry, range);
}
IList<Solid> solids = solidMeshCapsule.GetSolids();
IList<Mesh> polyMeshes = solidMeshCapsule.GetMeshes();
if (range != null && (solids.Count == 0 && polyMeshes.Count == 0))
return; // no proper split geometry
geomObjects = FamilyExporterUtil.RemoveSolidsAndMeshesSetToDontExport(doc, exporterIFC, solids, polyMeshes);
if (geomObjects.Count == 0 && (solids.Count > 0 || polyMeshes.Count > 0))
return;
bool tryToExportAsExtrusion = (!exporterIFC.ExportAs2x2 || (exportType == IFCExportType.ExportColumnType));
if (exportType == IFCExportType.ExportColumnType)
{
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ;
if (ExporterCacheManager.ExportOptionsCache.ExportAs2x3CoordinationView2 &&
solids.Count > 0)
{
LocationPoint point = familyInstance.Location as LocationPoint;
XYZ orig = XYZ.Zero;
if (point != null)
orig = point.Point;
Plane plane = new Plane(XYZ.BasisX, XYZ.BasisY, orig);
bool completelyClipped = false;
HashSet<ElementId> materialIds = null;
bodyRepresentation = ExtrusionExporter.CreateExtrusionWithClipping(exporterIFC, familyInstance,
categoryId, solids, plane, XYZ.BasisZ, null, out completelyClipped, out materialIds);
typeInfo.MaterialIds = materialIds;
}
}
else
{
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryXYZ;
}
BodyData bodyData = null;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRepresentation))
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(tryToExportAsExtrusion);
if (geomObjects.Count > 0)
{
bodyData = BodyExporter.ExportBody(familyInstance.Document.Application, exporterIFC, familyInstance, categoryId, ElementId.InvalidElementId,
geomObjects, bodyExporterOptions, extraParams);
typeInfo.MaterialIds = bodyData.MaterialIds;
}
else
{
IList<GeometryObject> exportedGeometries = new List<GeometryObject>();
exportedGeometries.Add(exportGeometry);
bodyData = BodyExporter.ExportBody(familyInstance.Document.Application, exporterIFC, familyInstance, categoryId, ElementId.InvalidElementId,
exportedGeometries, bodyExporterOptions, extraParams);
}
bodyRepresentation = bodyData.RepresentationHnd;
brepOffsetTransform = bodyData.BrepOffsetTransform;
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRepresentation))
{
extraParams.ClearOpenings();
return;
}
}
// By default: if exporting IFC2x3 or later, export 2D plan rep of family, if it exists, unless we are exporting Coordination View V2.
// This default can be overridden in the export options.
if (needToCreate2d)
{
XYZ curveOffset = new XYZ(0, 0, 0);
if (brepOffsetTransform != null)
curveOffset = -brepOffsetTransform.Origin / scale;
HashSet<IFCAnyHandle> curveSet = new HashSet<IFCAnyHandle>();
{
Transform planeTrf = doorWindowTrf.Inverse;
Plane plane = new Plane(planeTrf.get_Basis(0), planeTrf.get_Basis(1), planeTrf.Origin);
XYZ projDir = new XYZ(0, 0, 1);
IFCGeometryInfo IFCGeometryInfo = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, plane, projDir, true);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, IFCGeometryInfo, exportGeometry, curveOffset, false);
IList<IFCAnyHandle> curves = IFCGeometryInfo.GetCurves();
foreach (IFCAnyHandle curve in curves)
curveSet.Add(curve);
if (curveSet.Count > 0)
{
IFCAnyHandle contextOfItems2d = exporterIFC.Get2DContextHandle();
IFCAnyHandle curveRepresentationItem = IFCInstanceExporter.CreateGeometricSet(file, curveSet);
HashSet<IFCAnyHandle> bodyItems = new HashSet<IFCAnyHandle>();
bodyItems.Add(curveRepresentationItem);
planRepresentation = RepresentationUtil.CreateGeometricSetRep(exporterIFC, familyInstance, categoryId, "Annotation",
contextOfItems2d, bodyItems);
}
}
}
}
}
if (doorWindowInfo != null)
{
typeInfo.StyleTransform = doorWindowTrf.Inverse;
}
else
{
if (!MathUtil.IsAlmostZero(extraOffset.DotProduct(extraOffset)))
{
Transform newTransform = typeInfo.StyleTransform;
XYZ newOrig = newTransform.Origin + extraOffset;
newTransform.Origin = newOrig;
typeInfo.StyleTransform = newTransform;
}
typeInfo.StyleTransform = ExporterIFCUtils.GetUnscaledTransform(exporterIFC, extraParams.GetLocalPlacement());
}
IFCAnyHandle origin = ExporterUtil.CreateAxis2Placement3D(file);
IFCAnyHandle repMap2dHnd = null;
IFCAnyHandle repMap3dHnd = IFCInstanceExporter.CreateRepresentationMap(file, origin, bodyRepresentation);
IList<IFCAnyHandle> repMapList = new List<IFCAnyHandle>();
repMapList.Add(repMap3dHnd);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(planRepresentation))
{
repMap2dHnd = IFCInstanceExporter.CreateRepresentationMap(file, origin, planRepresentation);
repMapList.Add(repMap2dHnd);
}
// for Door, Window
bool paramTakesPrecedence = false; // For Revit, this is currently always false.
bool sizeable = false;
// for many
HashSet<IFCAnyHandle> propertySets = new HashSet<IFCAnyHandle>();
string guid = GUIDUtil.CreateGUID(familySymbol);
string symId = NamingUtil.CreateIFCElementId(familySymbol);
// This covers many generic types. If we can't find it in the list here, do custom exports.
IFCAnyHandle typeStyle = FamilyExporterUtil.ExportGenericType(file, exportType, ifcEnumType, guid,
ownerHistory, objectType, null, null, propertySets, repMapList, symId, objectType,
familyInstance, familySymbol);
// Cover special cases not covered above.
if (IFCAnyHandleUtil.IsNullOrHasNoValue(typeStyle))
{
switch (exportType)
{
case IFCExportType.ExportColumnType:
{
// If we are using the instance GRep, then we have to create a generic GUID for the
// column type, as they share the same ElementId.
string colGUID = null;
string colElemId = null;
if (useInstanceGeometry)
colGUID = GUIDUtil.CreateGUID();
else
colGUID = guid;
colElemId = NamingUtil.CreateIFCElementId(familySymbol);
string columnType = "Column";
typeStyle = IFCInstanceExporter.CreateColumnType(file, colGUID, ownerHistory, objectType,
null, null, propertySets, repMapList, colElemId,
objectType, GetColumnType(familyInstance, columnType));
break;
}
case IFCExportType.ExportDoorType:
{
string constructionType = string.Empty;
ParameterUtil.GetStringValueFromElementOrSymbol(familyInstance, "Construction", out constructionType);
IFCAnyHandle doorLining = DoorWindowUtil.CreateDoorLiningProperties(exporterIFC, familyInstance);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(doorLining))
propertySets.Add(doorLining);
IList<IFCAnyHandle> doorPanels = DoorWindowUtil.CreateDoorPanelProperties(exporterIFC, doorWindowInfo,
familyInstance);
propertySets.UnionWith(doorPanels);
string doorStyleGUID = GUIDUtil.CreateGUID();
string doorStyleElemId = NamingUtil.CreateIFCElementId(familySymbol);
typeStyle = IFCInstanceExporter.CreateDoorStyle(file, doorStyleGUID, ownerHistory, objectType,
null, null, propertySets, repMapList, doorStyleElemId,
GetDoorStyleOperation(doorWindowInfo.DoorOperationType), GetDoorStyleConstruction(familyInstance, constructionType),
paramTakesPrecedence, sizeable);
break;
}
case IFCExportType.ExportSystemFurnitureElementType:
{
string furnitureId = NamingUtil.CreateIFCElementId(familySymbol);
typeStyle = IFCInstanceExporter.CreateSystemFurnitureElementType(file, guid, ownerHistory, objectType,
null, null, propertySets, repMapList, furnitureId,
objectType);
break;
}
case IFCExportType.ExportWindowType:
{
Toolkit.IFCWindowStyleOperation operationType = DoorWindowUtil.GetIFCWindowStyleOperation(familySymbol);
IFCWindowStyleConstruction constructionType = DoorWindowUtil.GetIFCWindowStyleConstruction(familyInstance, "");
IFCAnyHandle windowLining = DoorWindowUtil.CreateWindowLiningProperties(exporterIFC, familyInstance, null);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(windowLining))
propertySets.Add(windowLining);
IList<IFCAnyHandle> windowPanels =
DoorWindowUtil.CreateWindowPanelProperties(exporterIFC, familyInstance, null);
propertySets.UnionWith(windowPanels);
string windowStyleGUID = GUIDUtil.CreateGUID();
string windowStyleElemId = NamingUtil.CreateIFCElementId(familySymbol);
typeStyle = IFCInstanceExporter.CreateWindowStyle(file, windowStyleGUID, ownerHistory, objectType,
null, null, propertySets, repMapList, windowStyleElemId,
constructionType, operationType, paramTakesPrecedence, sizeable);
break;
}
case IFCExportType.ExportBuildingElementProxy:
default:
{
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(repMap2dHnd))
typeInfo.Map2DHandle = repMap2dHnd;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(repMap3dHnd))
typeInfo.Map3DHandle = repMap3dHnd;
break;
}
}
}
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(typeStyle))
{
CategoryUtil.CreateMaterialAssociations(doc, exporterIFC, typeStyle, typeInfo.MaterialIds);
typeInfo.Style = typeStyle;
if (((exportType == IFCExportType.ExportColumnType) && trySpecialColumnCreation) ||
(exportType == IFCExportType.ExportMemberType))
{
typeInfo.ScaledArea = extraParams.ScaledArea;
typeInfo.ScaledDepth = extraParams.ScaledLength;
typeInfo.ScaledInnerPerimeter = extraParams.ScaledInnerPerimeter;
typeInfo.ScaledOuterPerimeter = extraParams.ScaledOuterPerimeter;
}
ClassificationUtil.CreateUniformatClassification(exporterIFC, file, familySymbol, typeStyle);
}
}
else if (!creatingType && (trySpecialColumnCreation))
{
// still need to modify instance trf for columns.
trf.Origin += GetLevelOffsetForExtrudedColumns(exporterIFC, familyInstance, overrideLevelId, extraParams);
}
if (found && !typeInfo.IsValid())
{
typeInfo = currentTypeInfo;
}
// we'll pretend we succeeded, but we'll do nothing.
if (!typeInfo.IsValid())
return;
// add to the map, as long as we are not using range, not using instance geometry, and don't have extra openings.
if ((range == null) && !useInstanceGeometry && (extraParams.GetOpenings().Count == 0))
ExporterCacheManager.TypeObjectsCache.Register(familySymbol.Id, flipped, typeInfo);
Transform oldTrf = new Transform(trf);
XYZ scaledMapOrigin = XYZ.Zero;
trf = trf.Multiply(typeInfo.StyleTransform);
// create instance.
IList<IFCAnyHandle> shapeReps = new List<IFCAnyHandle>();
{
IFCAnyHandle contextOfItems2d = exporterIFC.Get2DContextHandle();
IFCAnyHandle contextOfItems3d = exporterIFC.Get3DContextHandle("Body");
// for proxies, we store the IfcRepresentationMap directly since there is no style.
IFCAnyHandle style = typeInfo.Style;
IList<IFCAnyHandle> repMapList = !IFCAnyHandleUtil.IsNullOrHasNoValue(style) ?
GeometryUtil.GetRepresentationMaps(style) : null;
int numReps = repMapList != null ? repMapList.Count : 0;
IFCAnyHandle repMap2dHnd = typeInfo.Map2DHandle;
IFCAnyHandle repMap3dHnd = typeInfo.Map3DHandle;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repMap3dHnd) && (numReps > 0))
repMap3dHnd = repMapList[0];
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repMap2dHnd) && (numReps > 1))
repMap2dHnd = repMapList[1];
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(repMap3dHnd))
{
IList<IFCAnyHandle> representations = new List<IFCAnyHandle>();
representations.Add(ExporterUtil.CreateDefaultMappedItem(file, repMap3dHnd, scaledMapOrigin));
IFCAnyHandle shapeRep = RepresentationUtil.CreateBodyMappedItemRep(exporterIFC, familyInstance, categoryId, contextOfItems3d,
representations);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(shapeRep))
return;
shapeReps.Add(shapeRep);
}
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(repMap2dHnd))
{
HashSet<IFCAnyHandle> representations = new HashSet<IFCAnyHandle>();
representations.Add(ExporterUtil.CreateDefaultMappedItem(file, repMap2dHnd, scaledMapOrigin));
IFCAnyHandle shapeRep = RepresentationUtil.CreatePlanMappedItemRep(exporterIFC, familyInstance, categoryId, contextOfItems2d,
representations);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(shapeRep))
return;
shapeReps.Add(shapeRep);
}
}
IFCAnyHandle boundingBoxRep = null;
Transform boundingBoxTrf = (brepOffsetTransform != null) ? brepOffsetTransform.Inverse : Transform.Identity;
if (geomObjects.Count > 0)
boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geomObjects, boundingBoxTrf);
else
{
boundingBoxTrf = boundingBoxTrf.Multiply(trf.Inverse);
boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, familyInstance.get_Geometry(options), boundingBoxTrf);
}
if (boundingBoxRep != null)
shapeReps.Add(boundingBoxRep);
IFCAnyHandle rep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
IFCAnyHandle instanceHandle = null;
using (IFCPlacementSetter setter = IFCPlacementSetter.Create(exporterIFC, familyInstance, trf, null, overrideLevelId))
{
string instanceGUID = GUIDUtil.CreateGUID(familyInstance);
string instanceName = NamingUtil.GetIFCName(familyInstance);
string instanceDescription = NamingUtil.GetDescriptionOverride(familyInstance, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(familyInstance, objectType);
string instanceElemId = NamingUtil.CreateIFCElementId(familyInstance);
IFCAnyHandle localPlacement = setter.GetPlacement();
IFCAnyHandle overrideLocalPlacement = null;
if (parentLocalPlacement != null)
{
Transform relTrf = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(parentLocalPlacement, localPlacement);
Transform inverseTrf = relTrf.Inverse;
IFCAnyHandle relativePlacement = ExporterUtil.CreateAxis2Placement3D(file, inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
IFCAnyHandle plateLocalPlacement = IFCInstanceExporter.CreateLocalPlacement(file, parentLocalPlacement, relativePlacement);
overrideLocalPlacement = plateLocalPlacement;
}
instanceHandle = FamilyExporterUtil.ExportGenericInstance(exportType, exporterIFC, familyInstance,
wrapper, setter, extraParams, instanceGUID, ownerHistory, instanceName, instanceDescription, instanceObjectType,
exportParts ? null : rep, instanceElemId, overrideLocalPlacement);
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, familyInstance, instanceHandle, familyProductWrapper, setter, setter.GetPlacement(), overrideLevelId);
}
if (ElementFilteringUtil.IsMEPType(exportType))
ExporterCacheManager.MEPCache.Register(familyInstance, instanceHandle);
switch (exportType)
{
case IFCExportType.ExportColumnType:
{
IFCAnyHandle placementToUse = localPlacement;
if (!useInstanceGeometry)
{
bool needToCreateOpenings =
(cutPairOpeningsForColumns.Count != 0) || OpeningUtil.NeedToCreateOpenings(instanceHandle, extraParams);
if (needToCreateOpenings)
{
Transform openingTrf = new Transform(oldTrf);
Transform extraRot = new Transform(oldTrf);
extraRot.Origin = XYZ.Zero;
openingTrf = openingTrf.Multiply(extraRot);
openingTrf = openingTrf.Multiply(typeInfo.StyleTransform);
IFCAnyHandle openingRelativePlacement = ExporterUtil.CreateAxis2Placement3D(file, openingTrf.Origin * scale,
openingTrf.get_Basis(2), openingTrf.get_Basis(0));
IFCAnyHandle openingPlacement = ExporterUtil.CopyLocalPlacement(file, localPlacement);
GeometryUtil.SetRelativePlacement(openingPlacement, openingRelativePlacement);
placementToUse = openingPlacement;
}
}
OpeningUtil.CreateOpeningsIfNecessary(instanceHandle, familyInstance, cutPairOpeningsForColumns,
exporterIFC, placementToUse, setter, wrapper);
OpeningUtil.CreateOpeningsIfNecessary(instanceHandle, familyInstance, extraParams, exporterIFC,
placementToUse, setter, wrapper);
//export Base Quantities.
PropertyUtil.CreateBeamColumnBaseQuantities(exporterIFC, instanceHandle, familyInstance, typeInfo);
PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, familyInstance, wrapper);
break;
}
case IFCExportType.ExportDoorType:
case IFCExportType.ExportWindowType:
{
double doorHeight = doorWindowInfo.OpeningHeight;
if (doorHeight < MathUtil.Eps())
doorHeight = GetMinSymbolHeight(familySymbol);
double doorWidth = doorWindowInfo.OpeningWidth;
if (doorWidth < MathUtil.Eps())
doorWidth = GetMinSymbolWidth(familySymbol);
double height = doorHeight * scale;
double width = doorWidth * scale;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(doorWindowInfo.GetLocalPlacement()))
doorWindowInfo.SetLocalPlacement(localPlacement);
IFCAnyHandle doorWindowOrigLocalPlacement = doorWindowInfo.GetLocalPlacement();
Transform relTrf = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(localPlacement, doorWindowOrigLocalPlacement);
IFCAnyHandle doorWindowRelativePlacement = ExporterUtil.CreateAxis2Placement3D(file, relTrf.Origin, relTrf.BasisZ, relTrf.BasisX);
IFCAnyHandle doorWindowLocalPlacement =
IFCInstanceExporter.CreateLocalPlacement(file, doorWindowOrigLocalPlacement, doorWindowRelativePlacement);
if (exportType == IFCExportType.ExportDoorType)
instanceHandle = IFCInstanceExporter.CreateDoor(file, instanceGUID, ownerHistory,
instanceName, instanceDescription, instanceObjectType, doorWindowLocalPlacement,
rep, instanceElemId, height, width);
else if (exportType == IFCExportType.ExportWindowType)
instanceHandle = IFCInstanceExporter.CreateWindow(file, instanceGUID, ownerHistory,
instanceName, instanceDescription, instanceObjectType, doorWindowLocalPlacement,
rep, instanceElemId, height, width);
wrapper.AddElement(instanceHandle, setter, extraParams, true);
exporterIFC.RegisterSpaceBoundingElementHandle(instanceHandle, familyInstance.Id, setter.LevelId);
IFCAnyHandle placementToUse = doorWindowLocalPlacement;
if (!useInstanceGeometry)
{
// correct the placement to the symbol space
bool needToCreateOpenings = OpeningUtil.NeedToCreateOpenings(instanceHandle, extraParams);
if (needToCreateOpenings)
{
Transform openingTrf = Transform.Identity;
openingTrf.Origin = new XYZ(0, 0, setter.Offset);
openingTrf = openingTrf.Multiply(doorWindowTrf);
XYZ scaledOrigin = openingTrf.Origin * exporterIFC.LinearScale;
IFCAnyHandle openingRelativePlacement = ExporterUtil.CreateAxis2Placement3D(file, scaledOrigin, openingTrf.BasisZ, openingTrf.BasisX);
IFCAnyHandle openingLocalPlacement =
IFCInstanceExporter.CreateLocalPlacement(file, doorWindowLocalPlacement, openingRelativePlacement);
placementToUse = openingLocalPlacement;
}
}
// only necessary when exporting as possible breps.
OpeningUtil.CreateOpeningsIfNecessary(instanceHandle, familyInstance, extraParams, exporterIFC,
placementToUse, setter, wrapper);
if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
ExporterIFCUtils.CreateDoorWindowBaseQuantities(exporterIFC, instanceHandle, (doorHeight * scale), (doorWidth * scale));
PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, familyInstance, wrapper);
break;
}
case IFCExportType.ExportMemberType:
{
OpeningUtil.CreateOpeningsIfNecessary(instanceHandle, familyInstance, extraParams, exporterIFC,
localPlacement, setter, wrapper);
//export Base Quantities.
PropertyUtil.CreateBeamColumnBaseQuantities(exporterIFC, instanceHandle, familyInstance, typeInfo);
// TODO: create PropertySet!
//createMemberPropertySet(exporter, pFamInst, pWrapper, extraParams);
PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, familyInstance, wrapper);
break;
}
case IFCExportType.ExportPlateType:
{
OpeningUtil.CreateOpeningsIfNecessary(instanceHandle, familyInstance, extraParams, exporterIFC,
localPlacement, setter, wrapper);
// TODO: create PropertySet!
//createPlatePropertySet(exporter, pFamInst, pWrapper, extraParams);
PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, familyInstance, wrapper);
break;
}
case IFCExportType.ExportTransportElementType:
{
IFCAnyHandle localPlacementToUse;
ElementId roomId = setter.UpdateRoomRelativeCoordinates(familyInstance, out localPlacementToUse);
instanceHandle = IFCInstanceExporter.CreateTransportElement(file, instanceGUID, ownerHistory,
instanceName, instanceDescription, instanceObjectType,
localPlacementToUse, rep, instanceElemId, null, null, null);
if (roomId == ElementId.InvalidElementId)
{
wrapper.AddElement(instanceHandle, setter, extraParams, true);
}
else
{
exporterIFC.RelateSpatialElement(roomId, instanceHandle);
wrapper.AddElement(instanceHandle, setter, extraParams, false);
}
PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, familyInstance, wrapper);
break;
}
case IFCExportType.ExportBuildingElementProxy:
default:
{
bool isBuildingElementProxy = (exportType == IFCExportType.ExportBuildingElementProxy);
IFCAnyHandle localPlacementToUse;
ElementId roomId = setter.UpdateRoomRelativeCoordinates(familyInstance, out localPlacementToUse);
if (!isBuildingElementProxy)
{
if (FamilyExporterUtil.IsDistributionControlElementSubType(exportType))
{
instanceHandle = IFCInstanceExporter.CreateDistributionControlElement(file, instanceGUID,
ownerHistory, instanceName, instanceDescription, instanceObjectType,
localPlacementToUse, rep, instanceElemId, null);
if (roomId == ElementId.InvalidElementId)
{
wrapper.AddElement(instanceHandle, setter, extraParams, true);
}
else
{
exporterIFC.RelateSpatialElement(roomId, instanceHandle);
wrapper.AddElement(instanceHandle, setter, extraParams, false);
}
}
else if (IFCAnyHandleUtil.IsNullOrHasNoValue(instanceHandle))
{
isBuildingElementProxy = true;
}
}
if (isBuildingElementProxy)
{
Toolkit.IFCElementComposition proxyType = Toolkit.IFCElementComposition.Element;
instanceHandle = IFCInstanceExporter.CreateBuildingElementProxy(file, instanceGUID,
ownerHistory, instanceName, instanceDescription, instanceObjectType,
localPlacementToUse, rep, instanceElemId, proxyType);
if (roomId == ElementId.InvalidElementId)
{
wrapper.AddElement(instanceHandle, setter, extraParams, true);
}
else
{
exporterIFC.RelateSpatialElement(roomId, instanceHandle);
wrapper.AddElement(instanceHandle, setter, extraParams, false);
}
}
IFCAnyHandle placementToUse = localPlacement;
if (!useInstanceGeometry)
{
bool needToCreateOpenings = OpeningUtil.NeedToCreateOpenings(instanceHandle, extraParams);
if (needToCreateOpenings)
{
Transform openingTrf = new Transform(oldTrf);
Transform extraRot = new Transform(oldTrf);
extraRot.Origin = XYZ.Zero;
openingTrf = openingTrf.Multiply(extraRot);
openingTrf = openingTrf.Multiply(typeInfo.StyleTransform);
IFCAnyHandle openingRelativePlacement = ExporterUtil.CreateAxis2Placement3D(file, openingTrf.Origin * scale,
openingTrf.get_Basis(2), openingTrf.get_Basis(0));
IFCAnyHandle openingPlacement = ExporterUtil.CopyLocalPlacement(file, localPlacement);
GeometryUtil.SetRelativePlacement(openingPlacement, openingRelativePlacement);
placementToUse = openingPlacement;
}
}
OpeningUtil.CreateOpeningsIfNecessary(instanceHandle, familyInstance, extraParams, exporterIFC,
placementToUse, setter, wrapper);
PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, familyInstance, wrapper);
break;
}
}
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(instanceHandle))
{
if (doorWindowInfo != null)
{
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(doorWindowInfo.GetOpening()))
{
string relGUID = GUIDUtil.CreateGUID();
IFCInstanceExporter.CreateRelFillsElement(file, relGUID, ownerHistory, null, null, doorWindowInfo.GetOpening(), instanceHandle);
}
else if (doorWindowInfo.NeedsOpening)
{
bool added = doorWindowInfo.SetDelayedFamilyInstance(instanceHandle, localPlacement, doorWindowInfo.AssignedLevelId);
if (added)
exporterIFC.RegisterDoorWindowForOpeningUpdate(doorWindowInfo);
else
{
// we need to fill a later opening.
exporterIFC.RegisterDoorWindowForUncreatedOpening(familyInstance.Id, instanceHandle);
}
}
}
if (!exportParts)
CategoryUtil.CreateMaterialAssociations(doc, exporterIFC, instanceHandle, typeInfo.MaterialIds);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(typeInfo.Style))
ExporterCacheManager.TypeRelationsCache.Add(typeInfo.Style, instanceHandle);
}
}
}
}
/// <summary>
/// Adds openings to an element.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="elementHandle">The parent handle.</param>
/// <param name="element">The element.</param>
/// <param name="plane">The plane.</param>
/// <param name="scaledWidth">The width.</param>
/// <param name="range">The range.</param>
/// <param name="setter">The placement setter.</param>
/// <param name="localPlacement">The local placement.</param>
/// <param name="localWrapper">The wrapper.</param>
public static void AddOpeningsToElement(ExporterIFC exporterIFC, IFCAnyHandle elementHandle, Element element, Plane plane, double scaledWidth,
IFCRange range, PlacementSetter setter, IFCAnyHandle localPlacement, ProductWrapper localWrapper)
{
IList<IFCAnyHandle> elementHandles = new List<IFCAnyHandle>();
elementHandles.Add(elementHandle);
AddOpeningsToElement(exporterIFC, elementHandles, null, element, plane, scaledWidth, range, setter, localPlacement, localWrapper);
}
/// <summary>
/// Adds openings to an element.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="elementHandles">The parent handles.</param>
/// <param name="curveLoops">The parent CurveLoops.</param>
/// <param name="element">The element.</param>
/// <param name="lcs">The local coordinate system.</param>
/// <param name="scaledWidth">The width.</param>
/// <param name="range">The range.</param>
/// <param name="setter">The placement setter.</param>
/// <param name="localPlacement">The local placement.</param>
/// <param name="localWrapper">The wrapper.</param>
public static void AddOpeningsToElement(ExporterIFC exporterIFC, IList<IFCAnyHandle> elementHandles,
IList<CurveLoop> curveLoops, Element element, Transform lcs, double scaledWidth,
IFCRange range, PlacementSetter setter, IFCAnyHandle localPlacement, ProductWrapper localWrapper)
{
IList<IFCOpeningData> openingDataList = ExporterIFCUtils.GetOpeningData(exporterIFC, element, lcs, range);
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
foreach (IFCOpeningData openingData in openingDataList)
{
Element openingElem = element.Document.GetElement(openingData.OpeningElementId);
if (openingElem == null)
openingElem = element;
bool currentWallIsHost = false;
FamilyInstance openingFInst = openingElem as FamilyInstance;
if (openingFInst != null && openingFInst.Host != null)
{
if (openingFInst.Host.Id == element.Id)
currentWallIsHost = true;
//continue; // If the host is not the current Wall, skip this opening
}
// Don't export the opening if WallSweep category has been turned off.
// This is currently restricted to WallSweeps because the element responsible for the opening could be a variety of things,
// including a line as part of the elevation profile of the wall.
// As such, we will restrict which element types we check for CanExportElement.
if ((openingElem is WallSweep) && (!ElementFilteringUtil.CanExportElement(exporterIFC, openingElem, true)))
continue;
IList<IFCExtrusionData> extrusionDataList = openingData.GetExtrusionData();
IFCAnyHandle parentHandle = null;
if (elementHandles.Count > 1 && extrusionDataList.Count > 0)
{
parentHandle = FindParentHandle(elementHandles, curveLoops, extrusionDataList[0].GetLoops()[0]);
}
if (parentHandle == null)
parentHandle = elementHandles[0];
bool isDoorOrWindowOpening = IsDoorOrWindowOpening(exporterIFC, openingElem, element);
bool insertHasHost = false;
bool insertInThisHost = false;
if (openingElem is FamilyInstance && element is Wall)
{
string ifcEnumType;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, openingElem, out ifcEnumType);
Element instHost = (openingElem as FamilyInstance).Host;
insertHasHost = (instHost != null);
insertInThisHost = (insertHasHost && instHost.Id == element.Id);
isDoorOrWindowOpening =
insertInThisHost &&
(exportType.ExportInstance == IFCEntityType.IfcDoor ||
exportType.ExportType == IFCEntityType.IfcDoorType ||
exportType.ExportInstance == IFCEntityType.IfcWindow ||
exportType.ExportType == IFCEntityType.IfcWindowType);
}
if (isDoorOrWindowOpening && currentWallIsHost)
{
DoorWindowDelayedOpeningCreator delayedCreator =
DoorWindowDelayedOpeningCreator.Create(exporterIFC, openingData, scaledWidth, element.Id, parentHandle, setter.LevelId);
if (delayedCreator != null)
{
ExporterCacheManager.DoorWindowDelayedOpeningCreatorCache.Add(delayedCreator);
continue;
}
}
// If the opening is "filled" by another element (either a door or window as
// determined above, or an embedded wall, then we can't use the element GUID
// for the opening.
bool canUseElementGUID = (!insertHasHost || insertInThisHost) &&
!isDoorOrWindowOpening &&
!(openingElem is Wall);
IList<Solid> solids = openingData.GetOpeningSolids();
foreach (Solid solid in solids)
{
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(ExporterUtil.CreateLocalPlacement(file, localPlacement, null));
extrusionCreationData.ReuseLocalPlacement = true;
string openingGUID = CreateOpeningGUID(openingElem, canUseElementGUID);
canUseElementGUID = false; // Either it was used above, and therefore is now false, or it was already false.
CreateOpening(exporterIFC, parentHandle, element, openingElem, openingGUID, solid, scaledWidth, openingData.IsRecess, extrusionCreationData,
setter, localWrapper);
}
}
foreach (IFCExtrusionData extrusionData in extrusionDataList)
{
if (extrusionData.ScaledExtrusionLength < MathUtil.Eps())
extrusionData.ScaledExtrusionLength = scaledWidth;
string openingGUID = CreateOpeningGUID(openingElem, canUseElementGUID);
canUseElementGUID = false; // Either it was used above, and therefore is now false, or it was already false.
CreateOpening(exporterIFC, parentHandle, localPlacement, element, openingElem, openingGUID, extrusionData, lcs, openingData.IsRecess,
setter, localWrapper);
}
}
}
/// <summary>
/// Export the individual part (IfcBuildingElementPart).
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="partElement">The part element to export.</param>
/// <param name="geometryElement">The geometry of part.</param>
/// <param name="productWrapper">The ProductWrapper object.</param>
/// <param name="placementSetter"></param>
/// <param name="originalPlacement"></param>
/// <param name="range"></param>
/// <param name="ifcExtrusionAxes"></param>
/// <param name="hostElement">The host of the part. This can be null.</param>
/// <param name="overrideLevelId">The id of the level that the part is one, overridding other sources.</param>
/// <param name="asBuildingElement">If true, export the Part as a building element instead of an IfcElementPart.</param>
public static void ExportPart(ExporterIFC exporterIFC, Element partElement, ProductWrapper productWrapper,
PlacementSetter placementSetter, IFCAnyHandle originalPlacement, IFCRange range, IFCExtrusionAxes ifcExtrusionAxes,
Element hostElement, ElementId overrideLevelId, bool asBuildingElement)
{
if (!ElementFilteringUtil.IsElementVisible(partElement))
{
return;
}
Part part = partElement as Part;
if (part == null)
{
return;
}
// We don't know how to export a part as a building element if we don't know it's host.
if (asBuildingElement && (hostElement == null))
{
return;
}
if (!asBuildingElement)
{
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcBuildingElementPart;
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
else
{
string ifcEnumType = null;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum;
if (Enum.TryParse <Common.Enums.IFCEntityType>(exportType.ToString(), out elementClassTypeEnum))
{
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
}
PlacementSetter standalonePlacementSetter = null;
bool standaloneExport = hostElement == null || asBuildingElement;
ElementId partExportLevelId = (overrideLevelId != null) ? overrideLevelId : null;
if (partExportLevelId == null && standaloneExport)
{
partExportLevelId = partElement.LevelId;
}
if (partExportLevelId == null)
{
if (hostElement == null || (part.OriginalCategoryId != hostElement.Category.Id))
{
return;
}
partExportLevelId = hostElement.LevelId;
}
if (ExporterCacheManager.PartExportedCache.HasExported(partElement.Id, partExportLevelId))
{
return;
}
Options options = GeometryUtil.GetIFCExportGeometryOptions();
View ownerView = partElement.Document.GetElement(partElement.OwnerViewId) as View;
if (ownerView != null)
{
options.View = ownerView;
}
GeometryElement geometryElement = partElement.get_Geometry(options);
if (geometryElement == null)
{
return;
}
try
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
IFCAnyHandle partPlacement = null;
if (standaloneExport)
{
Transform orientationTrf = Transform.Identity;
IFCAnyHandle overrideContainerHnd = null;
ElementId overrideContainerId = ParameterUtil.OverrideContainmentParameter(exporterIFC, partElement, out overrideContainerHnd);
if (overrideContainerId != ElementId.InvalidElementId && (partExportLevelId == null || partExportLevelId == ElementId.InvalidElementId))
{
partExportLevelId = overrideContainerId;
}
standalonePlacementSetter = PlacementSetter.Create(exporterIFC, partElement, null, orientationTrf, partExportLevelId, overrideContainerHnd);
partPlacement = standalonePlacementSetter.LocalPlacement;
}
else
{
//partPlacement = ExporterUtil.CreateLocalPlacement(file, null, null);
partPlacement = ExporterUtil.CreateLocalPlacement(file, originalPlacement, null);
}
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
SolidMeshGeometryInfo solidMeshInfo;
if (validRange)
{
solidMeshInfo = GeometryUtil.GetSplitClippedSolidMeshGeometry(geometryElement, range);
if (solidMeshInfo.GetSolids().Count == 0 && solidMeshInfo.GetMeshes().Count == 0)
{
return;
}
}
else
{
solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
}
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(partPlacement);
extrusionCreationData.ReuseLocalPlacement = false;
extrusionCreationData.PossibleExtrusionAxes = ifcExtrusionAxes;
IList <Solid> solids = new List <Solid>();;
IList <Mesh> meshes = new List <Mesh>();
IList <GeometryObject> gObjs = FamilyExporterUtil.RemoveInvisibleSolidsAndMeshes(partElement.Document, exporterIFC, solidMeshInfo.GetSolids(), solidMeshInfo.GetMeshes());
foreach (GeometryObject gObj in gObjs)
{
if (gObj is Solid)
{
solids.Add(gObj as Solid);
}
else if (gObj is Mesh)
{
meshes.Add(gObj as Mesh);
}
}
ElementId catId = CategoryUtil.GetSafeCategoryId(partElement);
ElementId hostCatId = CategoryUtil.GetSafeCategoryId(hostElement);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, solids, meshes,
bodyExporterOptions, extrusionCreationData);
}
else
{
IList <GeometryObject> geomlist = new List <GeometryObject>();
geomlist.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, geomlist,
bodyExporterOptions, extrusionCreationData);
}
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extrusionCreationData.ClearOpenings();
return;
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(bodyRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
string partGUID = GUIDUtil.CreateGUID(partElement);
string ifcEnumType = null;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
IFCAnyHandle ifcPart = null;
if (!asBuildingElement)
{
ifcPart = IFCInstanceExporter.CreateBuildingElementPart(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep);
}
else
{
switch (exportType.ExportInstance)
{
case IFCEntityType.IfcColumn:
ifcPart = IFCInstanceExporter.CreateColumn(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
case IFCEntityType.IfcCovering:
ifcPart = IFCInstanceExporter.CreateCovering(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
case IFCEntityType.IfcFooting:
ifcPart = IFCInstanceExporter.CreateFooting(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
case IFCEntityType.IfcPile:
ifcPart = IFCInstanceExporter.CreatePile(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType, null);
break;
case IFCEntityType.IfcRoof:
ifcPart = IFCInstanceExporter.CreateRoof(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
case IFCEntityType.IfcSlab:
{
// TODO: fix this elsewhere.
if (ExporterUtil.IsNotDefined(ifcEnumType))
{
if (hostCatId == new ElementId(BuiltInCategory.OST_Floors))
{
ifcEnumType = "FLOOR";
}
else if (hostCatId == new ElementId(BuiltInCategory.OST_Roofs))
{
ifcEnumType = "ROOF";
}
}
ifcPart = IFCInstanceExporter.CreateSlab(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
}
break;
case IFCEntityType.IfcWall:
ifcPart = IFCInstanceExporter.CreateWall(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
default:
ifcPart = IFCInstanceExporter.CreateBuildingElementProxy(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, exportType.ValidatedPredefinedType);
break;
}
}
bool containedInLevel = standaloneExport;
PlacementSetter whichPlacementSetter = containedInLevel ? standalonePlacementSetter : placementSetter;
productWrapper.AddElement(partElement, ifcPart, whichPlacementSetter, extrusionCreationData, containedInLevel, exportType);
OpeningUtil.CreateOpeningsIfNecessary(ifcPart, partElement, extrusionCreationData, bodyData.OffsetTransform, exporterIFC,
extrusionCreationData.GetLocalPlacement(), whichPlacementSetter, productWrapper);
//Add the exported part to exported cache.
TraceExportedParts(partElement, partExportLevelId, standaloneExport ? ElementId.InvalidElementId : hostElement.Id);
CategoryUtil.CreateMaterialAssociation(exporterIFC, ifcPart, bodyData.MaterialIds);
transaction.Commit();
}
}
}
finally
{
if (standalonePlacementSetter != null)
{
standalonePlacementSetter.Dispose();
}
}
}
/// <summary>
/// Adds openings to an element.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="elementHandles">The parent handles.</param>
/// <param name="curveLoops">The parent CurveLoops.</param>
/// <param name="element">The element.</param>
/// <param name="plane">The plane.</param>
/// <param name="scaledWidth">The width.</param>
/// <param name="range">The range.</param>
/// <param name="setter">The placement setter.</param>
/// <param name="localPlacement">The local placement.</param>
/// <param name="localWrapper">The wrapper.</param>
public static void AddOpeningsToElement(ExporterIFC exporterIFC, IList <IFCAnyHandle> elementHandles, IList <CurveLoop> curveLoops, Element element, Plane plane, double scaledWidth,
IFCRange range, PlacementSetter setter, IFCAnyHandle localPlacement, ProductWrapper localWrapper)
{
IList <IFCOpeningData> openingDataList = ExporterIFCUtils.GetOpeningData(exporterIFC, element, plane, range);
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
foreach (IFCOpeningData openingData in openingDataList)
{
Element openingElem = element.Document.GetElement(openingData.OpeningElementId);
if (openingElem == null)
{
openingElem = element;
}
// Don't export the opening if WallSweep category has been turned off.
// This is currently restricted to WallSweeps because the element responsible for the opening could be a variety of things, including a line as part of the elevation profile of the wall.
// As such, we will restrict which element types we check for CanExportElement.
if ((openingElem is WallSweep) && (!ElementFilteringUtil.CanExportElement(exporterIFC, openingElem, true)))
{
continue;
}
IList <IFCExtrusionData> extrusionDataList = openingData.GetExtrusionData();
IFCAnyHandle parentHandle = null;
if (elementHandles.Count > 1 && extrusionDataList.Count > 0)
{
parentHandle = FindParentHandle(elementHandles, curveLoops, extrusionDataList[0].GetLoops()[0]);
}
if (parentHandle == null)
{
parentHandle = elementHandles[0];
}
bool isDoorOrWindowOpening = IsDoorOrWindowOpening(exporterIFC, openingElem, element);
if (isDoorOrWindowOpening)
{
DoorWindowDelayedOpeningCreator delayedCreator =
DoorWindowDelayedOpeningCreator.Create(exporterIFC, openingData, scaledWidth, element.Id, parentHandle, setter.LevelId);
if (delayedCreator != null)
{
ExporterCacheManager.DoorWindowDelayedOpeningCreatorCache.Add(delayedCreator);
continue;
}
}
bool canUseElementGUID = !isDoorOrWindowOpening;
IList <Solid> solids = openingData.GetOpeningSolids();
foreach (Solid solid in solids)
{
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(ExporterUtil.CreateLocalPlacement(file, localPlacement, null));
extrusionCreationData.ReuseLocalPlacement = true;
string openingGUID = null;
if (canUseElementGUID)
{
openingGUID = GUIDUtil.CreateGUID(openingElem);
canUseElementGUID = false;
}
else
{
openingGUID = GUIDUtil.CreateGUID();
}
CreateOpening(exporterIFC, parentHandle, element, openingElem, openingGUID, solid, scaledWidth, openingData.IsRecess, extrusionCreationData,
setter, localWrapper);
}
}
foreach (IFCExtrusionData extrusionData in extrusionDataList)
{
if (extrusionData.ScaledExtrusionLength < MathUtil.Eps())
{
extrusionData.ScaledExtrusionLength = scaledWidth;
}
string openingGUID = null;
if (canUseElementGUID)
{
openingGUID = GUIDUtil.CreateGUID(element);
canUseElementGUID = false;
}
else
{
openingGUID = GUIDUtil.CreateGUID();
}
CreateOpening(exporterIFC, parentHandle, localPlacement, element, openingElem, openingGUID, extrusionData, plane, openingData.IsRecess,
setter, localWrapper);
}
}
}
/// <summary>
/// Export the individual part (IfcBuildingElementPart).
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="partElement">The part element to export.</param>
/// <param name="geometryElement">The geometry of part.</param>
/// <param name="productWrapper">The ProductWrapper object.</param>
public static void ExportPart(ExporterIFC exporterIFC, Element partElement, ProductWrapper productWrapper,
IFCPlacementSetter placementSetter, IFCAnyHandle originalPlacement, IFCRange range, IFCExtrusionAxes ifcExtrusionAxes,
Element hostElement, ElementId overrideLevelId, bool asBuildingElement)
{
if (!ElementFilteringUtil.IsElementVisible(partElement))
{
return;
}
Part part = partElement as Part;
if (part == null)
{
return;
}
IFCPlacementSetter standalonePlacementSetter = null;
bool standaloneExport = hostElement == null && !asBuildingElement;
ElementId partExportLevel = null;
if (overrideLevelId != null)
{
partExportLevel = overrideLevelId;
}
else if (standaloneExport || asBuildingElement)
{
if (partElement.Level != null)
{
partExportLevel = partElement.Level.Id;
}
}
else
{
if (part.OriginalCategoryId != hostElement.Category.Id)
{
return;
}
partExportLevel = hostElement.Level.Id;
}
if (ExporterCacheManager.PartExportedCache.HasExported(partElement.Id, partExportLevel))
{
return;
}
Options options = GeometryUtil.GetIFCExportGeometryOptions();
View ownerView = partElement.Document.GetElement(partElement.OwnerViewId) as View;
if (ownerView != null)
{
options.View = ownerView;
}
GeometryElement geometryElement = partElement.get_Geometry(options);
if (geometryElement == null)
{
return;
}
try
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
IFCAnyHandle partPlacement = null;
if (standaloneExport || asBuildingElement)
{
Transform orientationTrf = Transform.Identity;
standalonePlacementSetter = IFCPlacementSetter.Create(exporterIFC, partElement, null, orientationTrf, partExportLevel);
partPlacement = standalonePlacementSetter.GetPlacement();
}
else
{
partPlacement = ExporterUtil.CreateLocalPlacement(file, originalPlacement, null);
}
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
SolidMeshGeometryInfo solidMeshInfo;
if (validRange)
{
solidMeshInfo = GeometryUtil.GetSplitClippedSolidMeshGeometry(geometryElement, range);
if (solidMeshInfo.GetSolids().Count == 0 && solidMeshInfo.GetMeshes().Count == 0)
{
return;
}
}
else
{
solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
}
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(partPlacement);
extrusionCreationData.ReuseLocalPlacement = false;
extrusionCreationData.PossibleExtrusionAxes = ifcExtrusionAxes;
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
ElementId catId = CategoryUtil.GetSafeCategoryId(partElement);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, solids, meshes,
bodyExporterOptions, extrusionCreationData);
}
else
{
IList <GeometryObject> geomlist = new List <GeometryObject>();
geomlist.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, geomlist,
bodyExporterOptions, extrusionCreationData);
}
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extrusionCreationData.ClearOpenings();
return;
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(bodyRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string partGUID = GUIDUtil.CreateGUID(partElement);
string partName = NamingUtil.GetNameOverride(partElement, NamingUtil.GetIFCName(partElement));
string partDescription = NamingUtil.GetDescriptionOverride(partElement, null);
string partObjectType = NamingUtil.GetObjectTypeOverride(partElement, NamingUtil.CreateIFCObjectName(exporterIFC, partElement));
string partTag = NamingUtil.GetTagOverride(partElement, NamingUtil.CreateIFCElementId(partElement));
IFCAnyHandle ifcPart = null;
if (!asBuildingElement)
{
ifcPart = IFCInstanceExporter.CreateBuildingElementPart(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partTag);
}
else
{
string ifcEnumType;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
switch (exportType)
{
case IFCExportType.ExportColumnType:
ifcPart = IFCInstanceExporter.CreateColumn(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag);
break;
case IFCExportType.ExportCovering:
IFCCoveringType coveringType = CeilingExporter.GetIFCCoveringType(hostElement, ifcEnumType);
ifcPart = IFCInstanceExporter.CreateCovering(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, coveringType);
break;
case IFCExportType.ExportFooting:
IFCFootingType footingType = FootingExporter.GetIFCFootingType(hostElement, ifcEnumType);
ifcPart = IFCInstanceExporter.CreateFooting(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, footingType);
break;
case IFCExportType.ExportRoof:
IFCRoofType roofType = RoofExporter.GetIFCRoofType(ifcEnumType);
ifcPart = IFCInstanceExporter.CreateRoof(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, roofType);
break;
case IFCExportType.ExportSlab:
IFCSlabType slabType = FloorExporter.GetIFCSlabType(ifcEnumType);
ifcPart = IFCInstanceExporter.CreateSlab(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, slabType);
break;
case IFCExportType.ExportWall:
ifcPart = IFCInstanceExporter.CreateWall(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag);
break;
default:
ifcPart = IFCInstanceExporter.CreateBuildingElementProxy(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partTag, null);
break;
}
}
bool containedInLevel = (standaloneExport || asBuildingElement);
IFCPlacementSetter whichPlacementSetter = containedInLevel ? standalonePlacementSetter : placementSetter;
productWrapper.AddElement(partElement, ifcPart, whichPlacementSetter, extrusionCreationData, containedInLevel);
//Add the exported part to exported cache.
TraceExportedParts(partElement, partExportLevel, standaloneExport || asBuildingElement ? ElementId.InvalidElementId : hostElement.Id);
CategoryUtil.CreateMaterialAssociations(exporterIFC, ifcPart, bodyData.MaterialIds);
transaction.Commit();
}
}
}
finally
{
if (standalonePlacementSetter != null)
{
standalonePlacementSetter.Dispose();
}
}
}
