public void CurvesBuildExec(List <LJJSPoint> drawptcol, LJJSHatch itemHatch, List <LJJSPoint> boundaryLinePtList)
        {
            List <List <LJJSPoint> > hatchBoundary = new List <List <LJJSPoint> >();

            hatchBoundary.Add(boundaryLinePtList);
            hatchBoundary.Add(drawptcol);
            Layer.Layer_SetToCurrent(_keDuChiItem.KName);
            MyHatch.AddPolyHatch(DrawCommonData.activeDocument, hatchBoundary, itemHatch);
        }