/// <summary>
/// Return geometry for a particular representation item.
/// </summary>
/// <param name="shapeEditScope">The shape edit scope.</param>
/// <param name="lcs">Local coordinate system for the geometry, without scale.</param>
/// <param name="scaledLcs">Local coordinate system for the geometry, including scale, potentially non-uniform.</param>
/// <param name="guid">The guid of an element for which represntation is being created.</param>
/// <returns>The created geometry.</returns>
protected override IList <GeometryObject> CreateGeometryInternal(
IFCImportShapeEditScope shapeEditScope, Transform lcs, Transform scaledLcs, string guid)
{
// since IFCAdvancedBrep must contain a closed shell, we set the BuildPreferenceType to be solid for now
for (int pass = 0; pass < 2; pass++)
{
using (BuilderScope bs = shapeEditScope.InitializeBuilder(IFCShapeBuilderType.BrepBuilder))
{
BrepBuilderScope brepBuilderScope = bs as BrepBuilderScope;
BRepType brepType = (pass == 0) ? BRepType.Solid : BRepType.OpenShell;
brepBuilderScope.StartCollectingFaceSet(brepType);
Outer.AllowInvalidFace = (pass == 0);
Outer.CreateShape(shapeEditScope, lcs, scaledLcs, guid);
IList <GeometryObject> geomObjs = null;
geomObjs = brepBuilderScope.CreateGeometry();
// We'll return only if we have geometry; otherwise we'll try again with looser validation, if we can.
if (geomObjs != null)
{
if (pass == 1)
{
Importer.TheLog.LogError(Id, "Some faces are missing from this Solid; reading in as an Open Shell instead.", false);
}
return(geomObjs);
}
}
}
return(null);
}
/// <summary>
/// Return geometry for a particular representation item.
/// </summary>
/// <param name="shapeEditScope">The shape edit scope.</param>
/// <param name="lcs">Local coordinate system for the geometry, without scale.</param>
/// <param name="scaledLcs">Local coordinate system for the geometry, including scale, potentially non-uniform.</param>
/// <param name="guid">The guid of an element for which represntation is being created.</param>
/// <returns>The created geometry.</returns>
protected override IList <GeometryObject> CreateGeometryInternal(
IFCImportShapeEditScope shapeEditScope, Transform lcs, Transform scaledLcs, string guid)
{
shapeEditScope.StartCollectingFaceSet();
Outer.CreateShape(shapeEditScope, lcs, scaledLcs, guid);
IList <GeometryObject> geomObjs = shapeEditScope.CreateGeometry(guid);
if (geomObjs == null || geomObjs.Count == 0)
{
return(null);
}
return(geomObjs);
}