private static IPolygon Clip_polygon_ToPolygon(Clip_polygon Clip_polygon)
{
Polygon polygon = new Polygon();
if (Clip_polygon.num_contours == 0)
{
return(new Polygon());
}
short[] holeShort = new short[Clip_polygon.num_contours];
Marshal.Copy(Clip_polygon.hole, holeShort, 0, Clip_polygon.num_contours);
IntPtr ptr = Clip_polygon.contour;
for (int i = 0; i < Clip_polygon.num_contours; i++)
{
Clip_vertex_list Clip_vtx_lst = (Clip_vertex_list)Marshal.PtrToStructure(ptr, typeof(Clip_vertex_list));
IRing ring = ((holeShort[i] == 0) ? new Ring() : new Hole());
IntPtr ptr2 = Clip_vtx_lst.vertex;
for (int j = 0; j < Clip_vtx_lst.num_vertices; j++)
{
Clip_vertex Clip_vtx = (Clip_vertex)Marshal.PtrToStructure(ptr2, typeof(Clip_vertex));
ring.AddPoint(new gView.Framework.Geometry.Point(
Clip_vtx.x, Clip_vtx.y));
ptr2 = IntPtrPlus(ptr2, Marshal.SizeOf(Clip_vtx)); //(IntPtr)(((int)ptr2) + Marshal.SizeOf(Clip_vtx));
}
polygon.AddRing(ring);
ptr = IntPtrPlus(ptr, Marshal.SizeOf(Clip_vtx_lst)); //(IntPtr)(((int)ptr) + Marshal.SizeOf(Clip_vtx_lst));
}
return(polygon);
}