public static IFCMaterialProfileWithOffsets ProcessIFCMaterialProfileWithOffsets(IFCAnyHandle ifcMaterialProfileWithOffsets)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcMaterialProfileWithOffsets))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcMaterialProfileWithOffsets);
return(null);
}
IFCEntity materialProfileWithOffsets;
if (!IFCImportFile.TheFile.EntityMap.TryGetValue(ifcMaterialProfileWithOffsets.StepId, out materialProfileWithOffsets))
{
materialProfileWithOffsets = new IFCMaterialProfileWithOffsets(ifcMaterialProfileWithOffsets);
}
return(materialProfileWithOffsets as IFCMaterialProfileWithOffsets);
}
protected override void Process(IFCAnyHandle ifcMaterialProfileSet)
{
base.Process(ifcMaterialProfileSet);
IList <IFCAnyHandle> ifcMaterialProfiles =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcMaterialProfileSet, "MaterialProfiles");
if (ifcMaterialProfiles == null)
{
Importer.TheLog.LogError(ifcMaterialProfileSet.Id, "Expected at least 1 MaterialProfile, found none.", false);
return;
}
foreach (IFCAnyHandle ifcMaterialProfile in ifcMaterialProfiles)
{
IFCMaterialProfile materialProfile = null;
if (IFCAnyHandleUtil.IsTypeOf(ifcMaterialProfile, IFCEntityType.IfcMaterialProfileWithOffsets))
{
materialProfile = IFCMaterialProfileWithOffsets.ProcessIFCMaterialProfileWithOffsets(ifcMaterialProfile);
}
else
{
materialProfile = IFCMaterialProfile.ProcessIFCMaterialProfile(ifcMaterialProfile);
}
if (materialProfile != null)
{
MaterialProfileSet.Add(materialProfile);
}
}
Name = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialProfileSet, "Name", null);
Description = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialProfileSet, "Description", null);
IFCAnyHandle compositeProfileHnd = IFCImportHandleUtil.GetOptionalInstanceAttribute(ifcMaterialProfileSet, "CompositeProfile");
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(compositeProfileHnd))
{
CompositeProfile = IFCCompositeProfile.ProcessIFCCompositeProfile(compositeProfileHnd);
}
}
private GeometryObject CreateGeometryFromMateriaProfile(IFCImportShapeEditScope shapeEditScope,
IList <CurveLoop> loops, XYZ extrusionDirection, double currDepth, SolidOptions solidOptions, out bool shouldWarn)
{
GeometryObject extrusionSolid = null;
try
{
shouldWarn = true; // invalid input
IIFCMaterialSelect materialSelect = shapeEditScope.Creator.MaterialSelect;
if (materialSelect == null)
{
return(null);
}
IFCMaterialProfileSetUsage matProfSetUsage = materialSelect as IFCMaterialProfileSetUsage;
if (matProfSetUsage == null)
{
return(null);
}
IFCMaterialProfileSet matProfSet = matProfSetUsage.ForProfileSet;
if (matProfSet == null)
{
return(null);
}
IList <IFCMaterialProfile> matProfList = matProfSet.MaterialProfileSet;
if (matProfList.Count == 0)
{
return(null);
}
Transform transformByOffset = Transform.Identity;
IList <CurveLoop> newloops = new List <CurveLoop>();
ElementId materialId = null;
foreach (IFCMaterialProfile matProf in matProfList)
{
if (this.SweptArea.Id == matProf.Profile.Id)
{
// This is the same id (same profile), use the material name for creation of this geometry
IFCMaterial theMaterial = matProf.Material;
if (theMaterial != null)
{
materialId = theMaterial.GetMaterialElementId();
solidOptions.MaterialId = materialId; // Override the original option if the profile has a specific material id
}
// Here we will handle special case if the Material Profile has Offset
if (matProf is IFCMaterialProfileWithOffsets)
{
IFCMaterialProfileWithOffsets matProfOffset = matProf as IFCMaterialProfileWithOffsets;
double startOffset = matProfOffset.OffsetValues[0];
double endOffset = 0;
if (matProfOffset.OffsetValues.Count > 1)
{
endOffset = matProfOffset.OffsetValues[1];
}
// To handle offset, we need to move the start point (extrusion position) to the startOffset value along the axis (extrusion direction)
// For the end offset, we will have to re-calculate the extrusion
currDepth = currDepth - startOffset + endOffset;
transformByOffset.Origin += startOffset * extrusionDirection;
foreach (CurveLoop loop in loops)
{
CurveLoop newLoop = CurveLoop.CreateViaTransform(loop, transformByOffset);
newloops.Add(newLoop);
}
}
break;
}
}
if (newloops.Count == 0)
{
extrusionSolid = GeometryCreationUtilities.CreateExtrusionGeometry(loops, extrusionDirection, currDepth, solidOptions);
}
else
{
extrusionSolid = GeometryCreationUtilities.CreateExtrusionGeometry(newloops, extrusionDirection, currDepth, solidOptions);
}
}
catch
{
// Ignore the specific exception, but let the user know there was a problem processing the IfcMaterialLayerSetUsage.
shouldWarn = true;
return(null);
}
return(extrusionSolid);
}
