Method add

src/serializers/ColladaSerializer.cpp:180–229

}

void ColladaSerializer::ColladaExporter::ColladaScene::add(
    const std::string& node_id, const std::string& node_name, const std::string& geom_name,
    const std::vector<std::string>& material_ids, const IfcGeom::Transformation& transformation)
{
	if (!scene_opened) {
		openVisualScene(scene_id);
		scene_opened = true;
	}
			
	COLLADASW::Node node(mSW);
	node.setNodeId(node_id);
	node.setNodeName(node_name);
	node.setType(COLLADASW::Node::NODE);

	// The matrix attribute of an entity is basically a 4x3 representation of its ObjectPlacement.
	// Note that this placement is absolute, ie it is multiplied with all parent placements.

	auto transformation_towrite = transformation.data()->ccomponents();
	
	// If this is not the first parent, get the relative placement
	if (parentNodes.size() > 0)
	{
		// @todo check order
		transformation_towrite = matrixStack.top().ccomponents() * transformation_towrite;
	}

	const auto& posmatrix = transformation_towrite;

	double matrix_array[4][4] = {
		{ (double)posmatrix(0,0), (double)posmatrix(0,1), (double)posmatrix(0,2), (double)posmatrix(0,3) },
		{ (double)posmatrix(1,0), (double)posmatrix(1,1), (double)posmatrix(1,2), (double)posmatrix(1,3) },
		{ (double)posmatrix(2,0), (double)posmatrix(2,1), (double)posmatrix(2,2), (double)posmatrix(2,3) },
		{ (double)posmatrix(3,0), (double)posmatrix(3,1), (double)posmatrix(3,2), (double)posmatrix(3,3) }
	};

	node.start();
	node.addMatrix(matrix_array);
	COLLADASW::InstanceGeometry instanceGeometry(mSW);
	instanceGeometry.setUrl("#" + geom_name);
    BOOST_FOREACH(const std::string &material_name, material_ids) {
		// Unescape to avoid double escaping because OpenCollada's material URI parameter escapes XML internally
    	std::string unescaped = material_name;
    	IfcUtil::unescape_xml(unescaped);

        COLLADASW::InstanceMaterial material(material_name, "#" + unescaped);
		instanceGeometry.getBindMaterial().getInstanceMaterialList().push_back(material);
	}
	instanceGeometry.add();
	node.end();
}

void ColladaSerializer::ColladaExporter::ColladaScene::addParent(const IfcGeom::Element& parent){
	//we open the visual scene tag if it's not.