+ AttachExistingPCurve (myclass;
+ aEold : Edge from TopoDS;
+ aEnew : Edge from TopoDS;
+ aF : Face from TopoDS;
+ aCtx : Context from IntTools)
+ returns Integer from Standard;
+ ---Purpose:
+ --- Attach P-Curve from the edge <aEold> on surface <aF>
+ --- to the edge <aEnew>
+ --- Returns 0 in case of success
+