/// <summary>
/// Get the handles of Grid Axes.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="sameDirectionAxes">The grid axes in the same direction of one level.</param>
/// <param name="representations">The representation of grid axis.</param>
/// <returns>The list of handles of grid axes.</returns>
private static List <IFCAnyHandle> CreateIFCGridAxisAndRepresentations(ExporterIFC exporterIFC, ProductWrapper productWrapper, IList <Grid> sameDirectionAxes,
IList <IFCAnyHandle> representations, GridRepresentationData gridRepresentationData)
{
if (sameDirectionAxes.Count == 0)
{
return(null);
}
IDictionary <ElementId, List <IFCAnyHandle> > gridAxisMap = new Dictionary <ElementId, List <IFCAnyHandle> >();
IDictionary <ElementId, List <IFCAnyHandle> > gridRepMap = new Dictionary <ElementId, List <IFCAnyHandle> >();
IFCFile ifcFile = exporterIFC.GetFile();
Grid baseGrid = sameDirectionAxes[0];
Transform lcs = Transform.Identity;
List <IFCAnyHandle> ifcGridAxes = new List <IFCAnyHandle>();
foreach (Grid grid in sameDirectionAxes)
{
// Because the IfcGrid is a collection of Revit Grids, any one of them can override the IFC CAD Layer.
// We will take the first name, and not do too much checking.
if (string.IsNullOrWhiteSpace(gridRepresentationData.m_IFCCADLayer))
{
ParameterUtil.GetStringValueFromElementOrSymbol(grid, "IFCCadLayer", out gridRepresentationData.m_IFCCADLayer);
}
// Get the handle of curve.
XYZ projectionDirection = lcs.BasisZ;
IFCAnyHandle axisCurve;
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
axisCurve = GeometryUtil.CreatePolyCurveFromCurve(exporterIFC, grid.Curve, lcs, projectionDirection);
}
else
{
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, lcs, projectionDirection, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, grid.Curve, XYZ.Zero, false);
IList <IFCAnyHandle> curves = info.GetCurves();
if (curves.Count != 1)
{
throw new Exception("IFC: expected 1 curve when export curve element.");
}
axisCurve = curves[0];
}
bool sameSense = true;
if (baseGrid.Curve is Line)
{
Line baseLine = baseGrid.Curve as Line;
Line axisLine = grid.Curve as Line;
sameSense = (axisLine.Direction.IsAlmostEqualTo(baseLine.Direction));
}
IFCAnyHandle ifcGridAxis = IFCInstanceExporter.CreateGridAxis(ifcFile, grid.Name, axisCurve, sameSense);
ifcGridAxes.Add(ifcGridAxis);
HashSet <IFCAnyHandle> AxisCurves = new HashSet <IFCAnyHandle>();
AxisCurves.Add(axisCurve);
IFCAnyHandle repItemHnd = IFCInstanceExporter.CreateGeometricCurveSet(ifcFile, AxisCurves);
// get the weight and color from the GridType to create the curve style.
GridType gridType = grid.Document.GetElement(grid.GetTypeId()) as GridType;
IFCData curveWidth = null;
if (ExporterCacheManager.ExportOptionsCache.ExportAnnotations)
{
int outWidth;
double width =
(ParameterUtil.GetIntValueFromElement(gridType, BuiltInParameter.GRID_END_SEGMENT_WEIGHT, out outWidth) != null) ? outWidth : 1;
curveWidth = IFCDataUtil.CreateAsPositiveLengthMeasure(width);
}
if (!ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
int outColor;
int color =
(ParameterUtil.GetIntValueFromElement(gridType, BuiltInParameter.GRID_END_SEGMENT_COLOR, out outColor) != null) ? outColor : 0;
double blueVal = 0.0;
double greenVal = 0.0;
double redVal = 0.0;
GeometryUtil.GetRGBFromIntValue(color, out blueVal, out greenVal, out redVal);
IFCAnyHandle colorHnd = IFCInstanceExporter.CreateColourRgb(ifcFile, null, redVal, greenVal, blueVal);
BodyExporter.CreateCurveStyleForRepItem(exporterIFC, repItemHnd, curveWidth, colorHnd);
}
HashSet <IFCAnyHandle> curveSet = new HashSet <IFCAnyHandle>();
curveSet.Add(repItemHnd);
gridRepresentationData.m_Grids.Add(grid);
gridRepresentationData.m_curveSets.Add(curveSet);
}
return(ifcGridAxes);
}
/// <summary>
/// Get the handles of Grid Axes.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="sameDirectionAxes">The grid axes in the same direction of one level.</param>
/// <param name="representations">The representation of grid axis.</param>
/// <returns>The list of handles of grid axes.</returns>
private static List<IFCAnyHandle> CreateIFCGridAxisAndRepresentations(ExporterIFC exporterIFC, ProductWrapper productWrapper, IList<Grid> sameDirectionAxes,
IList<IFCAnyHandle> representations, GridRepresentationData gridRepresentationData)
{
if (sameDirectionAxes.Count == 0)
return null;
IDictionary<ElementId, List<IFCAnyHandle>> gridAxisMap = new Dictionary<ElementId, List<IFCAnyHandle>>();
IDictionary<ElementId, List<IFCAnyHandle>> gridRepMap = new Dictionary<ElementId, List<IFCAnyHandle>>();
IFCFile ifcFile = exporterIFC.GetFile();
Grid baseGrid = sameDirectionAxes[0];
Plane plane = new Plane(XYZ.BasisX, XYZ.BasisY, XYZ.Zero);
List<IFCAnyHandle> ifcGridAxes = new List<IFCAnyHandle>();
foreach (Grid grid in sameDirectionAxes)
{
// Because the IfcGrid is a collection of Revit Grids, any one of them can override the IFC CAD Layer.
// We will take the first name, and not do too much checking.
if (string.IsNullOrWhiteSpace(gridRepresentationData.m_IFCCADLayer))
ParameterUtil.GetStringValueFromElementOrSymbol(grid, "IFCCadLayer", out gridRepresentationData.m_IFCCADLayer);
// Get the handle of curve.
XYZ projectionDirection = plane.Normal;
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, plane, projectionDirection, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, grid.Curve, XYZ.Zero, false);
IList<IFCAnyHandle> curves = info.GetCurves();
if (curves.Count != 1)
throw new Exception("IFC: expected 1 curve when export curve element.");
IFCAnyHandle axisCurve = curves[0];
bool sameSense = true;
if (baseGrid.Curve is Line)
{
Line baseLine = baseGrid.Curve as Line;
Line axisLine = grid.Curve as Line;
sameSense = (axisLine.Direction.IsAlmostEqualTo(baseLine.Direction));
}
IFCAnyHandle ifcGridAxis = IFCInstanceExporter.CreateGridAxis(ifcFile, grid.Name, axisCurve, sameSense);
ifcGridAxes.Add(ifcGridAxis);
HashSet<IFCAnyHandle> AxisCurves = new HashSet<IFCAnyHandle>();
AxisCurves.Add(axisCurve);
IFCAnyHandle repItemHnd = IFCInstanceExporter.CreateGeometricCurveSet(ifcFile, AxisCurves);
// get the weight and color from the GridType to create the curve style.
GridType gridType = grid.Document.GetElement(grid.GetTypeId()) as GridType;
IFCData curveWidth = null;
if (ExporterCacheManager.ExportOptionsCache.ExportAnnotations)
{
int outWidth;
double width =
(ParameterUtil.GetIntValueFromElement(gridType, BuiltInParameter.GRID_END_SEGMENT_WEIGHT, out outWidth) != null) ? outWidth : 1;
curveWidth = IFCDataUtil.CreateAsPositiveLengthMeasure(width);
}
int outColor;
int color =
(ParameterUtil.GetIntValueFromElement(gridType, BuiltInParameter.GRID_END_SEGMENT_COLOR, out outColor) != null) ? outColor : 0;
double blueVal = 0.0;
double greenVal = 0.0;
double redVal = 0.0;
GeometryUtil.GetRGBFromIntValue(color, out blueVal, out greenVal, out redVal);
IFCAnyHandle colorHnd = IFCInstanceExporter.CreateColourRgb(ifcFile, null, redVal, greenVal, blueVal);
BodyExporter.CreateCurveStyleForRepItem(exporterIFC, repItemHnd, curveWidth, colorHnd);
HashSet<IFCAnyHandle> curveSet = new HashSet<IFCAnyHandle>();
curveSet.Add(repItemHnd);
gridRepresentationData.m_Grids.Add(grid);
gridRepresentationData.m_curveSets.Add(curveSet);
}
return ifcGridAxes;
}
/// <summary>
/// Export one IFCGrid in one level.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="levelId">The level ID.</param>
/// <param name="sameDirectionAxesU">The U axes of grids.</param>
/// <param name="sameDirectionAxesV">The V axes of grids.</param>
/// <param name="sameDirectionAxesW">The W axes of grids.</param>
public static void ExportGrid(ExporterIFC exporterIFC, ElementId levelId, string gridName, List <Grid> sameDirectionAxesU, List <Grid> sameDirectionAxesV, List <Grid> sameDirectionAxesW)
{
List <IFCAnyHandle> axesU = null;
List <IFCAnyHandle> axesV = null;
List <IFCAnyHandle> axesW = null;
List <IFCAnyHandle> representations = new List <IFCAnyHandle>();
using (ProductWrapper productWrapper = ProductWrapper.Create(exporterIFC, true))
{
IFCFile ifcFile = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(ifcFile))
{
GridRepresentationData gridRepresentationData = new GridRepresentationData();
axesU = CreateIFCGridAxisAndRepresentations(exporterIFC, productWrapper, sameDirectionAxesU, representations, gridRepresentationData);
axesV = CreateIFCGridAxisAndRepresentations(exporterIFC, productWrapper, sameDirectionAxesV, representations, gridRepresentationData);
if (sameDirectionAxesW != null)
{
axesW = CreateIFCGridAxisAndRepresentations(exporterIFC, productWrapper, sameDirectionAxesW, representations, gridRepresentationData);
}
IFCAnyHandle contextOfItemsFootPrint = exporterIFC.Get3DContextHandle("FootPrint");
string identifierOpt = "FootPrint";
string representationTypeOpt = "GeometricCurveSet";
int numGridsToExport = gridRepresentationData.m_Grids.Count;
if (numGridsToExport == 0)
{
return;
}
bool useIFCCADLayer = !string.IsNullOrWhiteSpace(gridRepresentationData.m_IFCCADLayer);
IFCAnyHandle shapeRepresentation = null;
HashSet <IFCAnyHandle> allCurves = new HashSet <IFCAnyHandle>();
for (int ii = 0; ii < numGridsToExport; ii++)
{
allCurves.UnionWith(gridRepresentationData.m_curveSets[ii]);
}
if (useIFCCADLayer)
{
shapeRepresentation = RepresentationUtil.CreateShapeRepresentation(exporterIFC, contextOfItemsFootPrint,
identifierOpt, representationTypeOpt, allCurves, gridRepresentationData.m_IFCCADLayer);
}
else
{
ElementId catId = CategoryUtil.GetSafeCategoryId(gridRepresentationData.m_Grids[0]);
shapeRepresentation = RepresentationUtil.CreateShapeRepresentation(exporterIFC, gridRepresentationData.m_Grids[0], catId,
contextOfItemsFootPrint, identifierOpt, representationTypeOpt, allCurves);
}
representations.Add(shapeRepresentation);
IFCAnyHandle productRep = IFCInstanceExporter.CreateProductDefinitionShape(ifcFile, null, null, representations);
// We will associate the grid with its level, unless there are no levels in the file, in which case we'll associate it with the building.
IFCLevelInfo levelInfo = ExporterCacheManager.LevelInfoCache.GetLevelInfo(exporterIFC, levelId);
bool useLevelInfo = (levelInfo != null);
string gridGUID = GUIDUtil.CreateGUID();
//// Get the first grid's override name, if cannot find it, use null.
//string gridName = GetGridName(sameDirectionAxesU, sameDirectionAxesV, sameDirectionAxesW);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
IFCAnyHandle gridLevelHandle = useLevelInfo ? levelInfo.GetBuildingStorey() : ExporterCacheManager.BuildingHandle;
IFCAnyHandle levelObjectPlacement = IFCAnyHandleUtil.GetObjectPlacement(gridLevelHandle);
double elev = useLevelInfo ? levelInfo.Elevation : 0.0;
double elevation = UnitUtil.ScaleLength(elev);
XYZ orig = new XYZ(0.0, 0.0, elevation);
IFCAnyHandle copyLevelPlacement = ExporterUtil.CopyLocalPlacement(ifcFile, levelObjectPlacement);
IFCAnyHandle ifcGrid = IFCInstanceExporter.CreateGrid(exporterIFC, gridGUID, ownerHistory, gridName, copyLevelPlacement, productRep, axesU, axesV, axesW);
productWrapper.AddElement(null, ifcGrid, levelInfo, null, true, null);
transaction.Commit();
}
}
}
/// <summary>
/// Export one IFCGrid in one level.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="levelId">The level ID.</param>
/// <param name="sameDirectionAxesU">The U axes of grids.</param>
/// <param name="sameDirectionAxesV">The V axes of grids.</param>
/// <param name="sameDirectionAxesW">The W axes of grids.</param>
public static void ExportGrid(ExporterIFC exporterIFC, ElementId levelId, List<Grid> sameDirectionAxesU, List<Grid> sameDirectionAxesV, List<Grid> sameDirectionAxesW)
{
List<IFCAnyHandle> axesU = null;
List<IFCAnyHandle> axesV = null;
List<IFCAnyHandle> axesW = null;
List<IFCAnyHandle> representations = new List<IFCAnyHandle>();
using (ProductWrapper productWrapper = ProductWrapper.Create(exporterIFC, true))
{
IFCFile ifcFile = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(ifcFile))
{
GridRepresentationData gridRepresentationData = new GridRepresentationData();
axesU = CreateIFCGridAxisAndRepresentations(exporterIFC, productWrapper, sameDirectionAxesU, representations, gridRepresentationData);
axesV = CreateIFCGridAxisAndRepresentations(exporterIFC, productWrapper, sameDirectionAxesV, representations, gridRepresentationData);
if (sameDirectionAxesW != null)
axesW = CreateIFCGridAxisAndRepresentations(exporterIFC, productWrapper, sameDirectionAxesW, representations, gridRepresentationData);
IFCAnyHandle contextOfItemsFootPrint = exporterIFC.Get3DContextHandle("FootPrint");
string identifierOpt = "FootPrint";
string representationTypeOpt = "GeometricCurveSet";
int numGridsToExport = gridRepresentationData.m_Grids.Count;
if (numGridsToExport == 0)
return;
bool useIFCCADLayer = !string.IsNullOrWhiteSpace(gridRepresentationData.m_IFCCADLayer);
IFCAnyHandle shapeRepresentation = null;
HashSet<IFCAnyHandle> allCurves = new HashSet<IFCAnyHandle>();
for (int ii = 0; ii < numGridsToExport; ii++)
allCurves.UnionWith(gridRepresentationData.m_curveSets[ii]);
if (useIFCCADLayer)
{
shapeRepresentation = RepresentationUtil.CreateShapeRepresentation(exporterIFC, contextOfItemsFootPrint,
identifierOpt, representationTypeOpt, allCurves, gridRepresentationData.m_IFCCADLayer);
}
else
{
ElementId catId = CategoryUtil.GetSafeCategoryId(gridRepresentationData.m_Grids[0]);
shapeRepresentation = RepresentationUtil.CreateShapeRepresentation(exporterIFC, gridRepresentationData.m_Grids[0], catId,
contextOfItemsFootPrint, identifierOpt, representationTypeOpt, allCurves);
}
representations.Add(shapeRepresentation);
IFCAnyHandle productRep = IFCInstanceExporter.CreateProductDefinitionShape(ifcFile, null, null, representations);
IFCLevelInfo levelInfo = ExporterCacheManager.LevelInfoCache.GetLevelInfo(exporterIFC, levelId);
string gridGUID = GUIDUtil.CreateGUID();
// Get the first grid's override name, if cannot find it, use null.
string gridName = GetGridName(sameDirectionAxesU, sameDirectionAxesV, sameDirectionAxesW);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
IFCAnyHandle gridLevelHandle = levelInfo.GetBuildingStorey();
IFCAnyHandle levelObjectPlacement = IFCAnyHandleUtil.GetInstanceAttribute(gridLevelHandle, "ObjectPlacement");
double elev = levelInfo.Elevation;
double scaleFactor = exporterIFC.LinearScale;
double elevation = elev * scaleFactor;
XYZ orig = new XYZ(0.0, 0.0, elevation);
IFCAnyHandle copyLevelPlacement = ExporterUtil.CopyLocalPlacement(ifcFile, levelObjectPlacement);
IFCAnyHandle ifcGrid = IFCInstanceExporter.CreateGrid(ifcFile, gridGUID, ownerHistory, gridName, null, null, copyLevelPlacement, productRep, axesU, axesV, axesW);
productWrapper.AddElement(null, ifcGrid, levelInfo, null, true);
transaction.Commit();
}
}
}