write_polygon_xld_arc_infowrite_polygon_xld_arc_infoWritePolygonXldArcInfowrite_polygon_xld_arc_infoWritePolygonXldArcInfoWritePolygonXldArcInfo (Operator)

Name

write_polygon_xld_arc_infowrite_polygon_xld_arc_infoWritePolygonXldArcInfowrite_polygon_xld_arc_infoWritePolygonXldArcInfoWritePolygonXldArcInfo — Write XLD polygons to a file in ARC/INFO generate format.

Signature

Description

write_polygon_xld_arc_infowrite_polygon_xld_arc_infoWritePolygonXldArcInfowrite_polygon_xld_arc_infoWritePolygonXldArcInfoWritePolygonXldArcInfo writes the XLD polygons PolygonsPolygonsPolygonsPolygonsPolygonspolygons to an ARC/INFO generate format file with name FileNameFileNameFileNameFileNameFileNamefileName. If no absolute path is given in FileNameFileNameFileNameFileNameFileNamefileName, 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_xldaffine_trans_polygon_xldAffineTransPolygonXldaffine_trans_polygon_xldAffineTransPolygonXldAffineTransPolygonXld beforehand. The necessary transformation can be read from an ARC/INFO world file with read_world_fileread_world_fileReadWorldFileread_world_fileReadWorldFileReadWorldFile.

Attention

The XLD contours that are possibly referenced by PolygonsPolygonsPolygonsPolygonsPolygonspolygons 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_inforead_polygon_xld_arc_infoReadPolygonXldArcInforead_polygon_xld_arc_infoReadPolygonXldArcInfoReadPolygonXldArcInfo, 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_xldsplit_contours_xldSplitContoursXldsplit_contours_xldSplitContoursXldSplitContoursXld will not work correctly.

Parallelization

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Example (HDevelop)

* 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')

Result

If the parameters are correct and the file could be written, the operator write_polygon_xld_arc_infowrite_polygon_xld_arc_infoWritePolygonXldArcInfowrite_polygon_xld_arc_infoWritePolygonXldArcInfoWritePolygonXldArcInfo returns the value 2 (H_MSG_TRUE). Otherwise an exception is raised.

Possible Predecessors

affine_trans_polygon_xldaffine_trans_polygon_xldAffineTransPolygonXldaffine_trans_polygon_xldAffineTransPolygonXldAffineTransPolygonXld

See also

read_world_fileread_world_fileReadWorldFileread_world_fileReadWorldFileReadWorldFile, read_polygon_xld_arc_inforead_polygon_xld_arc_infoReadPolygonXldArcInforead_polygon_xld_arc_infoReadPolygonXldArcInfoReadPolygonXldArcInfo, write_contour_xld_arc_infowrite_contour_xld_arc_infoWriteContourXldArcInfowrite_contour_xld_arc_infoWriteContourXldArcInfoWriteContourXldArcInfo

Module

Foundation