private void addComposite() {
CompositeArtifact composite = new CompositeArtifact();
Element composi = composite.addElement(doc, svgNS, comp.getX(), comp.getY(), comp.getHeight(), comp.getWidth());
Element text = Text.addTextElement(doc, svgNS, comp.getX() + 20, comp.getY() + 20, comp.getName());
svgRoot.appendChild(composi);
svgRoot.appendChild(text);