Work on serialization

src/ifcgeom/IfcGeom.h

@@ -322,8 +322,8 @@ public:
 
 };
 
-IFC_GEOM_API IfcSchema::IfcProductDefinitionShape* tesselate(const TopoDS_Shape& shape, double deflection);
+IfcUtil::IfcBaseClass* MAKE_TYPE_NAME(tesselate_)(const TopoDS_Shape& shape, double deflection);
-IFC_GEOM_API IfcSchema::IfcProductDefinitionShape* serialise(const TopoDS_Shape& shape, bool advanced);
+IfcUtil::IfcBaseClass* MAKE_TYPE_NAME(serialise_)(const TopoDS_Shape& shape, bool advanced);
 
 }
 #endif

src/ifcgeom/IfcGeomSerialisation.cpp

@@ -493,7 +493,7 @@ int convert_to_ifc(const TopoDS_Shape& s, U*& item, bool advanced) {
 	return faces->size();
 }
 
-IfcSchema::IfcProductDefinitionShape* IfcGeom::serialise(const TopoDS_Shape& shape, bool advanced) {
+IfcUtil::IfcBaseClass* IfcGeom::serialise(const TopoDS_Shape& shape, bool advanced) {
 #ifndef USE_IFC4
 	advanced = false;
 #endif
@@ -604,7 +604,7 @@ IfcSchema::IfcProductDefinitionShape* IfcGeom::serialise(const TopoDS_Shape& sha
 	return new IfcSchema::IfcProductDefinitionShape(boost::none, boost::none, reps);
 }
 
-IfcSchema::IfcProductDefinitionShape* IfcGeom::tesselate(const TopoDS_Shape& shape, double deflection) {
+IfcUtil::IfcBaseClass* IfcGeom::tesselate(const TopoDS_Shape& shape, double deflection) {
 	BRepMesh_IncrementalMesh(shape, deflection);
 
 	IfcSchema::IfcFace::list::ptr faces(new IfcSchema::IfcFace::list);

src/ifcgeom_schema_agnostic/Serialization.cpp

@@ -0,0 +1,30 @@
+#include "Serialization.h"
+
+#include <boost/algorithm/string/case_conv.hpp>
+
+namespace IfcGeom {
+	extern IfcUtil::IfcBaseClass* tesselate_Ifc2x3(const TopoDS_Shape& shape, double deflection);
+	extern IfcUtil::IfcBaseClass* tesselate_Ifc4(const TopoDS_Shape& shape, double deflection);
+	extern IfcUtil::IfcBaseClass* serialise_Ifc2x3(const TopoDS_Shape& shape, bool advanced);
+	extern IfcUtil::IfcBaseClass* serialise_Ifc4(const TopoDS_Shape& shape, bool advanced);
+}
+
+template <typename Fn, typename T>
+IfcUtil::IfcBaseClass* execute_based_on_schema(Fn fn1, Fn fn2, const std::string& schema_name, const TopoDS_Shape& shape, T t) {
+	const std::string schema_name_lower = boost::to_lower_copy(schema_name);
+	if (schema_name == "ifc2x3") {
+		return fn1(shape, t);
+	} else if (schema_name == "ifc4") {
+		return fn2(shape, t);
+	} else {
+		throw IfcParse::IfcException("No geometry serialization available for " + schema_name);
+	}
+}
+
+IfcUtil::IfcBaseClass* IfcGeom::tesselate(const std::string& schema_name, const TopoDS_Shape& shape, double deflection) {
+	return execute_based_on_schema(IfcGeom::tesselate_Ifc2x3, IfcGeom::tesselate_Ifc4, schema_name, shape, deflection);
+}
+
+IfcUtil::IfcBaseClass* IfcGeom::serialise(const std::string& schema_name, const TopoDS_Shape& shape, bool advanced) {
+	return execute_based_on_schema(IfcGeom::serialise_Ifc2x3, IfcGeom::serialise_Ifc4, schema_name, shape, advanced);
+}

src/ifcgeom_schema_agnostic/Serialization.h

@@ -0,0 +1,11 @@
+#include "../ifcgeom/ifc_geom_api.h"
+#include "../ifcparse/IfcBaseClass.h"
+
+#include <TopoDS_Shape.hxx>
+
+#include <string>
+
+namespace IfcGeom {
+	IFC_GEOM_API IfcUtil::IfcBaseClass* tesselate(const std::string& schema_name, const TopoDS_Shape& shape, double deflection);
+	IFC_GEOM_API IfcUtil::IfcBaseClass* serialise(const std::string& schema_name, const TopoDS_Shape& shape, bool advanced);
+}

src/ifcwrap/IfcGeomWrapper.i

@@ -439,27 +439,25 @@ struct ShapeRTTI : public boost::static_visitor<PyObject*>
 	}
 %}
 
-/*
 %inline %{
-	IfcUtil::IfcBaseClass* serialise(const std::string& s, bool advanced=true) {
+	IfcUtil::IfcBaseClass* serialise(const std::string& schema_name, const std::string& shape_str, bool advanced=true) {
-		std::stringstream stream(s);
+		std::stringstream stream(shape_str);
 		BRepTools_ShapeSet shapes;
 		shapes.Read(stream);
 		const TopoDS_Shape& shp = shapes.Shape(shapes.NbShapes());
 
-		return IfcGeom::serialise(shp, advanced);
+		return IfcGeom::serialise(schema_name, shp, advanced);
 	}
 
-	IfcUtil::IfcBaseClass* tesselate(const std::string& s, double d) {
+	IfcUtil::IfcBaseClass* tesselate(const std::string& schema_name, const std::string& shape_str, double d) {
-		std::stringstream stream(s);
+		std::stringstream stream(shape_str);
 		BRepTools_ShapeSet shapes;
 		shapes.Read(stream);
 		const TopoDS_Shape& shp = shapes.Shape(shapes.NbShapes());
 
-		return IfcGeom::tesselate(shp, d);
+		return IfcGeom::tesselate(schema_name, shp, d);
 	}
 %}
-*/
 
 namespace IfcGeom {
 	%template(iterator_single_precision) Iterator<float>;

src/ifcwrap/IfcPython.i

@@ -71,6 +71,7 @@
 
 %module ifcopenshell_wrapper %{
 	#include "../ifcgeom_schema_agnostic/IfcGeomIterator.h"
+	#include "../ifcgeom_schema_agnostic/Serialization.h"
 	#include "../ifcgeom/IfcGeomTree.h"
 	
 	#include "../ifcparse/Ifc2x3.h"