[gdal-dev] Re: Countour polygons instead of lines

2008-09-09 Thread Tim Michelsen
Hello! Although your message is already some days old I wanna respond. Did you ever want gdal_contour to produce polygons instead of lines? Yes! I made a small Perl program that uses the Perl bindings to GDAL and which converts the lines into polygons. The polygons represent "plates" of equ

[gdal-dev] Re: reprojecting a georeferenced image (PNG, JPG)

2008-08-06 Thread Tim Michelsen
Two years ago, I had the same problem. The cascading documentation is not obvious when starting with gdal. (My problem was a CMD LINE BUFFER EXCEEDED error using gdal_merge.py not knowing that I can use the general option --optfile). Starting the documentation with a brief description of the cas

[gdal-dev] Re: reprojecting a georeferenced image (PNG, JPG)

2008-08-04 Thread Tim Michelsen
> gdlawarp-co "WORLDFILE=YES" Thanks, this really got me going. I think the documentation could need some example here... Kind regards, Timmie ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev

[gdal-dev] reprojecting a georeferenced image (PNG, JPG)

2008-08-04 Thread Tim Michelsen
Hello, I have a PNG file with some transparent areas. I used QGIS to georeference the file using the latlon/WGS84 projection settings. Within this process, a world file (*.wld) and a point file where created. Now, I'd like to reproject this image into another projection. How do I have run gadlwar

[gdal-dev] feature proposal: ogr_merge

2008-07-30 Thread Tim Michelsen
Hello, I would like to ask whether it is possible to include a program to merge vector files just like gdal_merge.py Please see a related discussion on the GRASS user list: Re: import a folder full of shapefiles and reproject on-the-fly? http://thread.gmane.org/gmane.comp.gis.grass.user/24911/focu