Hi, Gdaltindex creates simple rectangular polygons. When images are warped the resulting tileindex polygons will overlap. This is ok when tileindex is used as an image catalogue by Mapserver. However, sometimes it would be useful to have an image catalogue showing the real image data areas. Is there a tool for creating such a catalogue, or relatively simple instructions about how that kind of catalogue could be created? I imagine that taking the image extent rectangles as a starting point but clipping away NODATA areas (perhaps dug out with a system like gdal_polygonize using some "create_only_NODATA_polygons") might give the desired result.
-Jukka Rahkonen- _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev