This primitive drawmethod draws a PolyPolyline. In case of PolygonMode = line, simple lines are drawn. If PolygonMode = Fill, then a filled area bounded by lines is drawn. The Loxyz must have the property, thats the entries are coherently xyzarrays and additionally there are no crosspoints. If this is done, then xyzarrays, which lays in an other filled xyzarray are "drawn as hole". If it lays in a hole then the xyzarray is filled drawn.