IfcConvert --svg-xmlns option

src/ifcconvert/IfcConvert.cpp

@@ -374,6 +374,8 @@ int main(int argc, char** argv) {
 			"Creates SVG cross section drawings automatically based on model extents")
 		("auto-elevation",
 			"Creates SVG elevation drawings automatically based on model extents")
+		("svg-xmlns",
+			"Stores name and guid in a separate namespace as opposed to data-name, data-guid")
 		("door-arcs", "Draw door openings arcs for IfcDoor elements")
 		("section-height", po::value<double>(&section_height),
 		    "Specifies the cut section height for SVG 2D geometry.")
@@ -956,6 +958,7 @@ int main(int argc, char** argv) {
 		if (vmap.count("auto-elevation")) {
 			static_cast<SvgSerializer*>(serializer.get())->setAutoElevation(true);
 		}
+		static_cast<SvgSerializer*>(serializer.get())->setUseNamespace(vmap.count("svg-xmlns") > 0);
 		if (relative_center_x && relative_center_y) {
 			static_cast<SvgSerializer*>(serializer.get())->setDrawingCenter(*relative_center_x, *relative_center_y);
 		}

src/serializers/SvgSerializer.cpp

@@ -1093,7 +1093,7 @@ void SvgSerializer::finalize() {
 			} else {
 				auto n = it->first.second;
 				IfcUtil::escape_xml(n);
-				svg_file << "    <g data-name=\"" << n << "\" class=\"section\">\n";
+				svg_file << "    <g " << namespace_prefix_  << "name=\"" << n << "\" class=\"section\">\n";
 			}
 		}
 		svg_file << "        <g " << it->second.first << ">\n";
@@ -1113,6 +1113,9 @@ void SvgSerializer::finalize() {
 
 void SvgSerializer::writeHeader() {
 	svg_file << "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"";
+	if (use_namespace_) {
+		svg_file << " xmlns:ifc=\"http://www.ifcopenshell.org/ns\"";
+	}
 	if (scale_) {
 		svg_file << 
 			" width=\"" << width << "mm\""
@@ -1183,8 +1186,8 @@ std::string SvgSerializer::nameElement(const IfcUtil::IfcBaseEntity* storey, con
 	return nameElement_({
 		{"id", with_section_heights_from_storey_ ? object_id(storey, elem) : GeometrySerializer::object_id(elem)},
 		{"class", elem->type()},
-		{"data-name", n},
-		{"data-guid", elem->guid()}
+		{namespace_prefix_ + "name", n},
+		{namespace_prefix_ + "guid", elem->guid()}
 		});
 }
 
@@ -1214,8 +1217,8 @@ std::string SvgSerializer::nameElement(const IfcUtil::IfcBaseEntity* elem) {
 	return nameElement_({
 		{"id", idElement(elem)},
 		{"class", entity},
-		{"data-name", ifc_name},
-		{"data-guid", *elem->get("GlobalId")}
+		{namespace_prefix_ + "name", ifc_name},
+		{namespace_prefix_ + "guid", *elem->get("GlobalId")}
 		});
 }
 

src/serializers/SvgSerializer.h

@@ -121,6 +121,7 @@ protected:
 	bool with_section_heights_from_storey_, rescale, print_space_names_, print_space_areas_;
 	bool draw_door_arcs_, is_floor_plan_;
 	bool auto_section_, auto_elevation_;
+	bool use_namespace_;
 
 	IfcParse::IfcFile* file;
 	IfcUtil::IfcBaseEntity* storey_;
@@ -134,6 +135,8 @@ protected:
 	std::list<geometry_data> element_buffer_;
 
 	Handle(HLRBRep_Algo) hlr;
+
+	std::string namespace_prefix_;
 public:
 	SvgSerializer(const std::string& out_filename, const SerializerSettings& settings)
 		: GeometrySerializer(settings)
@@ -150,11 +153,13 @@ public:
 		, is_floor_plan_(true)
 		, auto_section_(false)
 		, auto_elevation_(false)
+		, use_namespace_(false)
 		, file(0)
 		, storey_(0)
 		, xcoords_begin(0)
 		, ycoords_begin(0)
 		, radii_begin(0)
+		, namespace_prefix_("data-")
 	{}
     void addXCoordinate(const boost::shared_ptr<util::string_buffer::float_item>& fi) { xcoords.push_back(fi); }
     void addYCoordinate(const boost::shared_ptr<util::string_buffer::float_item>& fi) { ycoords.push_back(fi); }
@@ -197,6 +202,11 @@ public:
 		auto_elevation_ = b;
 	}
 
+	void setUseNamespace(bool b) {
+		use_namespace_ = b;
+		namespace_prefix_ = use_namespace_ ? "ifc:" : "data-";
+	}
+
 	void setScale(double s) { scale_ = s; }
 	void setDrawingCenter(double x, double y) {
 		center_x_ = x; center_y_ = y;