private bool ShapeRepresentationTypesComply(
out string errStr)
{
string repType = RepresentationType.GetValueOrDefault();
string msg = "";
bool found = true;
XbimSet <IfcRepresentationItem> items = Items;
int count = 0;
//split case statements to overcome bug in db4o, which cannot traverse more than 5 deep in a case statement
switch (repType)
{
case "Curve2D":
count = items.OfType <IfcCurve>().Where(i => i.Dim == 2).Count();
msg = "RepresentationType = Curve2D, but Items contains shapes that are not Curve";
break;
case "Annotation2D":
count =
items.Where(
i =>
i is IfcPoint || i is IfcCurve || i is IfcGeometricCurveSet || i is IfcAnnotationFillArea ||
i is IfcDefinedSymbol || i is IfcTextLiteral || i is IfcDraughtingCallOut).Count();
msg =
"RepresentationType = Annotation2D, but Items contains shapes that are not GeometricCurveSet, Curve, or AnnotationFillArea, DefinedSymbol, TextLiteral or DraughtingCallOut";
break;
case "GeometricSet":
count =
items.Where(i => i is IfcGeometricSet || i is IfcPoint || i is IfcCurve || i is IfcSurface).
Count();
msg =
"RepresentationType = GeometricSet, but Items contains shapes that are not Point, Curve, or Surface";
break;
case "GeometricCurveSet":
count =
items.Where(
i => i is IfcGeometricCurveSet || i is IfcPoint || i is IfcCurve || i is IfcGeometricSet).
Count();
msg =
"RepresentationType = GeometricCurveSet, but Items contains shapes that are not Point, Curve, or GeometricSet";
foreach (IfcRepresentationItem item in items)
{
IfcGeometricSet gs = item as IfcGeometricSet;
if (gs != null)
{
if (gs.Elements.OfType <IfcSurface>().Count() > 0)
{
count--;
}
}
}
break;
case "SurfaceModel":
count =
items.Where(
i =>
i is IfcShellBasedSurfaceModel || i is IfcFaceBasedSurfaceModel || i is IfcFacetedBrep ||
i is IfcFacetedBrepWithVoids).Count();
msg =
"RepresentationType = SurfaceModel, but Items contains shapes that are not ShellBasedSurfaceModel, FaceBasedSurfaceModel, FacetedBrepWithVoids or FacetedBrep";
break;
default:
found = false;
break;
}
if (!found)
{
found = true;
switch (repType)
{
case "SolidModel":
count = items.OfType <IfcSolidModel>().Count();
msg = "RepresentationType = SolidModel, but Items contains shapes that are not SolidModel";
break;
case "SweptSolid":
count = items.OfType <IfcSweptAreaSolid>().Count();
msg = "RepresentationType = SweptSolid, but Items contains shapes that are not SweptAreaSolid";
break;
case "CSG":
count = items.OfType <IfcBooleanResult>().Count();
msg = "RepresentationType = CSG, but Items contains shapes that are not BooleanResult";
break;
case "Clipping":
count = items.OfType <IfcBooleanClippingResult>().Count();
msg =
"RepresentationType = Clipping, but Items contains shapes that are not BooleanClippingResult";
break;
case "AdvancedSweptSolid":
count = items.Where(i => i is IfcSurfaceCurveSweptAreaSolid || i is IfcSweptDiskSolid).Count();
msg =
"RepresentationType = AdvancedSweptSolid, but Items contains shapes that are not SurfaceCurveSweptAreaSolid or SweptDiskSolid";
break;
default:
found = false;
break;
}
}
if (!found)
{
found = true;
switch (repType)
{
case "Brep":
count = items.Where(i => i is IfcFacetedBrep || i is IfcFacetedBrepWithVoids).Count();
msg =
"RepresentationType = Brep, but Items contains shapes that are not FacetedBrep or FacetedBrepWithVoids";
break;
case "BoundingBox":
count = items.OfType <IfcBoundingBox>().Count();
msg = "RepresentationType = BoundingBox, but Items contains shapes that are not BoundingBox";
if (items.Count > 1)
{
count = 0;
}
break;
case "SectionedSpine":
count = items.OfType <IfcSectionedSpine>().Count();
msg =
"RepresentationType = SectionedSpine, but Items contains shapes that are not SectionedSpine";
break;
case "MappedRepresentation":
count = items.OfType <IfcMappedItem>().Count();
msg =
"RepresentationType = MappedRepresentation, but Items contains shapes that are not MappedItem";
break;
default:
found = false;
break;
}
}
if (!found)
{
errStr = string.Format("Illegal or unknown Representation Identifier, {0}", repType);
return(false);
}
if (count != items.Count)
{
errStr = msg;
return(false);
}
else
{
errStr = "";
return(true);
}
}