[geom][ctype] add traits specialization for compounds

frackit/geometry/ctype.hh

@@ -33,6 +33,7 @@
 #include <TopoDS_Face.hxx>
 #include <TopoDS_Shell.hxx>
 #include <TopoDS_Solid.hxx>
+#include <TopoDS_Compound.hxx>
 #include <Standard.hxx>
 
 namespace Frackit {
@@ -104,6 +105,14 @@ struct CoordinateTypeTraits<TopoDS_Solid>
 : public CoordinateTypeTraits<TopoDS_Shape>
 {};
 
+/*!
+ * \brief Specialization for Brep compounds.
+ */
+template<>
+struct CoordinateTypeTraits<TopoDS_Compound>
+: public CoordinateTypeTraits<TopoDS_Shape>
+{};
+
 } // end namespace Frackit
 
 #endif // FRACKIT_GEOMETRY_COORDINATE_TYPE_HH