public static NaviPoint getComponentPointRelativeToDomElement(Element element, NaviPoint p) {
SVGMatrix mat = ((SVGLocatable) element).getScreenCTM();
return p.matrixTransform(mat);
}
public static NaviPoint getLocalPointFromDomElement(Element element, float x, float y) {
SVGMatrix mat = ((SVGLocatable) element).getScreenCTM();
SVGMatrix imat = mat.inverse(); // screen -> elem
NaviPoint pt = new NaviPoint(x, y);
return pt.matrixTransform(imat);
}