/// <summary>Creates root element from a given drawing document.</summary>
private void constructFromDrawing(Drawing d, WpfDrawingDocument dd)
{
drawing = d;
root = new ExpolorerRoot(dd);
name = "___SVG_ROOT___";
initialize();
}
private SVGExplorer(Drawing d, SVGExplorer parent, ExpolorerRoot r)
{
drawing = d;
root = r;
this.parent = parent;
initialize();
}