- Fixed a bug regarding IfcUnitAssignment

- Separate IFC parsing library and geometry libraries [#3395025]
- Added example for IfcParse usage without geometry or Open CASCADE functionality
- Cleanup of vcproj Open CASCADE dependencies
- Added function to query parent class type in IfcExpressParser.py

src/ifcexpressparser/IfcExpressParser.py

@@ -381,6 +381,7 @@ namespace Type {
     typedef enum {
         %(enum)s
 	} Enum;
+	Enum Parent(Enum v);
     Enum FromString(const std::string& s);
     std::string ToString(Enum v);
 }
@@ -450,6 +451,14 @@ for e in all_enumerations:
 print >>cpp_file, "    throw;"
 print >>cpp_file, "}"
 
+print >>cpp_file, "Type::Enum Type::Parent(Enum v){"
+print >>cpp_file, "    if (v < 0 || v >= %d) return -1;"%len(all_enumerations)
+for e in entity_enumerations:
+	if e not in parent_relations: continue
+	print >>cpp_file, '    if(v==%s%s) { return %s; }'%(e," "*(maxlen-len(e)),parent_relations[e])
+print >>cpp_file, "    return -1;"
+print >>cpp_file, "}"
+
 for t in [T for T in types if isinstance(T.type,EnumType)]:
 	print >>cpp_file, t
 for e in entities: print >>cpp_file, e,