write_polygon_xld_arc_info — Write XLD polygons to a file in ARC/INFO generate format.
write_polygon_xld_arc_info writes the XLD polygons
Polygons to an ARC/INFO generate format file with name
FileName. If no absolute path is given in
FileName, the output file is created in the current
directory of the HALCON process. The polygons must have been
transformed to the world coordinate system with
affine_trans_polygon_xld beforehand. The necessary
transformation can be read from an ARC/INFO world file with
read_world_file.
The XLD contours that are possibly referenced by Polygons
are not stored in the ARC/INFO file, since this is not possible with
the ARC/INFO generate file format. Therefore, when the polygons are
read again using read_polygon_xld_arc_info, this information
is lost, and no references to contours are generated for the
polygons. Hence, operators that access the contours associated with
a polygon, e.g., split_contours_xld will not work
correctly.
Polygons (input_object) xld_poly(-array) → object
XLD polygons to be written.
FileName (input_control) filename.write → (string)
Name of the ARC/INFO file.
* Read transformation and image
read_world_file ('image.tfw', WorldTransformation)
read_image (Image, 'image.tif')
* Segment image
* ...
* Write result
affine_trans_polygon_xld (Polygons, PolygonsWorld, WorldTransformation)
write_polygon_xld_arc_info (PolygonsWorld, 'result.gen')
If the parameters are correct and the file could be written, the
operator write_polygon_xld_arc_info returns the value 2 (H_MSG_TRUE).
Otherwise an exception is raised.
read_world_file,
read_polygon_xld_arc_info,
write_contour_xld_arc_info
Foundation