gfxpoly_t* gfxpoly_from_gfxline(gfxline_t*line, double gridsize);
gfxpoly_t* gfxpoly_from_file(const char*filename, double gridsize);
+gfxcompactpoly_t* gfxcompactpoly_from_gfxline(gfxline_t*line, double gridsize);
+gfxcompactpoly_t* gfxcompactpoly_from_file(const char*filename, double gridsize);
+
+void gfxcompactpoly_free(gfxcompactpoly_t*poly);
#endif //__poly_convert_h__