/// <summary>
/// Export spatial elements, including rooms, areas and spaces. 1st level space boundaries.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="spatialElement">
/// The spatial element.
/// </param>
/// <param name="productWrapper">
/// The IFCProductWrapper.
/// </param>
public static void ExportSpatialElement(ExporterIFC exporterIFC, SpatialElement spatialElement, IFCProductWrapper productWrapper)
{
//quick reject
bool isArea = spatialElement is Area;
if (isArea)
{
if (!IsAreaGrossInterior(exporterIFC, spatialElement))
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
ElementId levelId = spatialElement.Level != null ? spatialElement.Level.Id : ElementId.InvalidElementId;
using (IFCPlacementSetter setter = IFCPlacementSetter.Create(exporterIFC, spatialElement, null, null, levelId))
{
CreateIFCSpace(exporterIFC, spatialElement, productWrapper, setter);
// Do not create boundary information, or extra property sets.
if (spatialElement is Area)
{
tr.Commit();
return;
}
if (exporterIFC.SpaceBoundaryLevel == 1)
{
Document document = spatialElement.Document;
IFCLevelInfo levelInfo = exporterIFC.GetLevelInfo(levelId);
double baseHeightNonScaled = levelInfo.Elevation;
SpatialElementGeometryResults spatialElemGeomResult = s_SpatialElemGeometryCalculator.CalculateSpatialElementGeometry(spatialElement);
Solid spatialElemGeomSolid = spatialElemGeomResult.GetGeometry();
FaceArray faces = spatialElemGeomSolid.Faces;
foreach (Face face in faces)
{
IList<SpatialElementBoundarySubface> spatialElemBoundarySubfaces = spatialElemGeomResult.GetBoundaryFaceInfo(face);
foreach (SpatialElementBoundarySubface spatialElemBSubface in spatialElemBoundarySubfaces)
{
if (spatialElemBSubface.SubfaceType == SubfaceType.Side)
continue;
if (spatialElemBSubface.GetSubface() == null)
continue;
ElementId elemId = spatialElemBSubface.SpatialBoundaryElement.LinkInstanceId;
if (elemId == ElementId.InvalidElementId)
{
elemId = spatialElemBSubface.SpatialBoundaryElement.HostElementId;
}
Element boundingElement = document.get_Element(elemId);
if (boundingElement == null)
continue;
bool isObjectExt = CategoryUtil.IsElementExternal(boundingElement);
IFCGeometryInfo info = IFCGeometryInfo.CreateSurfaceGeometryInfo(spatialElement.Document.Application.VertexTolerance);
Face subFace = spatialElemBSubface.GetSubface();
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, subFace, XYZ.Zero, false);
IFCAnyHandle ifcOptionalHnd = IFCAnyHandle.Create();
foreach (IFCAnyHandle surfaceHnd in info.GetSurfaces())
{
IFCAnyHandle connectionGeometry = file.CreateConnectionSurfaceGeometry(surfaceHnd, ifcOptionalHnd);
IFCSpaceBoundary spaceBoundary = IFCSpaceBoundary.Create(spatialElement.Id, boundingElement.Id, connectionGeometry, IFCSpaceBoundaryType.Physical, isObjectExt);
if (!ProcessIFCSpaceBoundary(exporterIFC, spaceBoundary, file))
exporterIFC.RegisterIFCSpaceBoundary(spaceBoundary);
}
}
}
IList<IList<BoundarySegment>> roomBoundaries = spatialElement.GetBoundarySegments(ExporterIFCUtils.GetSpatialElementBoundaryOptions(exporterIFC, spatialElement));
double roomHeight = GetHeight(spatialElement, exporterIFC.LinearScale, levelInfo);
XYZ zDir = new XYZ(0, 0, 1);
foreach (IList<BoundarySegment> roomBoundaryList in roomBoundaries)
{
foreach (BoundarySegment roomBoundary in roomBoundaryList)
{
Element boundingElement = roomBoundary.Element;
if (boundingElement == null)
continue;
ElementId buildingElemId = boundingElement.Id;
Curve trimmedCurve = roomBoundary.Curve;
if (trimmedCurve == null)
continue;
//trimmedCurve.Visibility = Visibility.Visible; readonly
IFCAnyHandle connectionGeometry = ExporterIFCUtils.CreateExtrudedSurfaceFromCurve(
exporterIFC, trimmedCurve, zDir, roomHeight, baseHeightNonScaled);
IFCSpaceBoundaryType physOrVirt = IFCSpaceBoundaryType.Physical;
if (boundingElement is CurveElement)
physOrVirt = IFCSpaceBoundaryType.Virtual;
else if (boundingElement is Autodesk.Revit.DB.Architecture.Room)
physOrVirt = IFCSpaceBoundaryType.Undefined;
bool isObjectExt = CategoryUtil.IsElementExternal(boundingElement);
bool isObjectPhys = (physOrVirt == IFCSpaceBoundaryType.Physical);
ElementId actualBuildingElemId = isObjectPhys ? buildingElemId : ElementId.InvalidElementId;
IFCSpaceBoundary boundary = IFCSpaceBoundary.Create(spatialElement.Id, actualBuildingElemId, connectionGeometry, physOrVirt, isObjectExt);
if (!ProcessIFCSpaceBoundary(exporterIFC, boundary, file))
exporterIFC.RegisterIFCSpaceBoundary(boundary);
// try to add doors and windows for host objects if appropriate.
if (isObjectPhys && boundingElement is HostObject)
{
HostObject hostObj = boundingElement as HostObject;
IList<ElementId> elemIds = hostObj.FindInserts(false, false, false, false);
foreach (ElementId elemId in elemIds)
{
// we are going to do a simple bbox export, not complicated geometry.
Element instElem = document.get_Element(elemId);
if (instElem == null)
continue;
BoundingBoxXYZ instBBox = instElem.get_BoundingBox(null);
// make copy of original trimmed curve.
Curve instCurve = trimmedCurve.Clone();
XYZ instOrig = instCurve.get_EndPoint(0);
// make sure that the insert is on this level.
if (instBBox.Max.Z < instOrig.Z)
continue;
if (instBBox.Min.Z > instOrig.Z + roomHeight)
continue;
double insHeight = Math.Min(instBBox.Max.Z, instOrig.Z + roomHeight) - Math.Max(instOrig.Z, instBBox.Min.Z);
if (insHeight < (1.0 / (12.0 * 16.0)))
continue;
// move base curve to bottom of bbox.
XYZ moveDir = new XYZ(0.0, 0.0, instBBox.Min.Z - instOrig.Z);
Transform moveTrf = Transform.get_Translation(moveDir);
instCurve = instCurve.get_Transformed(moveTrf);
bool isHorizOrVert = false;
if (instCurve is Line)
{
Line instLine = instCurve as Line;
XYZ lineDir = instLine.Direction;
if (MathUtil.IsAlmostEqual(Math.Abs(lineDir.X), 1.0) || (MathUtil.IsAlmostEqual(Math.Abs(lineDir.Y), 1.0)))
isHorizOrVert = true;
}
double[] parameters = new double[2];
double[] origEndParams = new double[2];
if (isHorizOrVert)
{
parameters[0] = instCurve.Project(instBBox.Min).Parameter;
parameters[1] = instCurve.Project(instBBox.Max).Parameter;
}
else
{
FamilyInstance famInst = instElem as FamilyInstance;
if (famInst == null)
continue;
ElementType elementType = document.get_Element(famInst.GetTypeId()) as ElementType;
if (elementType == null)
continue;
BoundingBoxXYZ symBBox = elementType.get_BoundingBox(null);
Curve symCurve = trimmedCurve.Clone();
Transform trf = famInst.GetTransform();
Transform invTrf = trf.Inverse;
Curve trfCurve = symCurve.get_Transformed(invTrf);
parameters[0] = trfCurve.Project(symBBox.Min).Parameter;
parameters[1] = trfCurve.Project(symBBox.Max).Parameter;
}
// ignore if less than 1/16".
if (Math.Abs(parameters[1] - parameters[0]) < 1.0 / (12.0 * 16.0))
continue;
if (parameters[0] > parameters[1])
{
//swap
double tempParam = parameters[0];
parameters[0] = parameters[1];
parameters[1] = tempParam;
}
origEndParams[0] = instCurve.get_EndParameter(0);
origEndParams[1] = instCurve.get_EndParameter(1);
if (origEndParams[0] > parameters[1] - (1.0 / (12.0 * 16.0)))
continue;
if (origEndParams[1] < parameters[0] + (1.0 / (12.0 * 16.0)))
continue;
if (parameters[0] > origEndParams[0])
instCurve.set_EndParameter(0, parameters[0]);
if (parameters[1] < origEndParams[1])
instCurve.set_EndParameter(1, parameters[1]);
IFCAnyHandle insConnectionGeom = ExporterIFCUtils.CreateExtrudedSurfaceFromCurve(exporterIFC, instCurve, zDir,
insHeight, baseHeightNonScaled);
IFCSpaceBoundary instBoundary = IFCSpaceBoundary.Create(spatialElement.Id, elemId, insConnectionGeom, physOrVirt, isObjectExt);
if (!ProcessIFCSpaceBoundary(exporterIFC, instBoundary, file))
exporterIFC.RegisterIFCSpaceBoundary(instBoundary);
}
}
}
}
}
ExporterIFCUtils.CreateSpatialElementPropertySet(exporterIFC, spatialElement, productWrapper);
}
tr.Commit();
}
}
/// <summary>
/// Creates SpaceBoundary from a bounding element.
/// </summary>
/// <param name="file">
/// The IFC file.
/// </param>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="spatialElement">
/// The spatial element.
/// </param>
/// <param name="boundingElement">
/// The bounding element.
/// </param>
/// <param name="connectionGeometry">
/// The connection geometry handle.
/// </param>
static void CreateIFCSpaceBoundary(IFCFile file, ExporterIFC exporterIFC, SpatialElement spatialElement, Element boundingElement, IFCAnyHandle connectionGeometry)
{
IFCSpaceBoundaryType physOrVirt = IFCSpaceBoundaryType.Physical;
if (boundingElement is CurveElement)
physOrVirt = IFCSpaceBoundaryType.Virtual;
else if (boundingElement is Autodesk.Revit.DB.Architecture.Room)
physOrVirt = IFCSpaceBoundaryType.Undefined;
bool isObjectExt = CategoryUtil.IsElementExternal(boundingElement);
IFCSpaceBoundary spaceBoundary = IFCSpaceBoundary.Create(spatialElement.Id, boundingElement.Id, connectionGeometry, physOrVirt, isObjectExt);
if (!ProcessIFCSpaceBoundary(exporterIFC, spaceBoundary, file))
exporterIFC.RegisterIFCSpaceBoundary(spaceBoundary);
}