[gdal-dev] Problems with transform raster image - try again !

2011-11-25 Thread Jan Tappenbeck
HI ! i try my translation in use of an other tif-source files! here even in the tif-header are informations about the reference - worst coordintes: C:\Program Files (x86)\FWTools2.4.7gdalinfo D:\City\raster\gas\500\g8746-1_ cit.tif Driver: GTiff/GeoTIFF Files:

Re: [gdal-dev] Problems with transform raster image - try again !

2011-11-25 Thread Travis Kirstine
Jan, Something does not look right with the coordinates / bbox of the source g8746-1_cit.tif file. Data should be within the DHDN / 3-degree Gauss-Kruger zone 2 bbox 2490547.1867, 5440321.7879, 2609576.6008, 5958700.0208 The gdalinfo indicates that dataset bbox is

[gdal-dev] Re: Bug? Gdalwarp produces images with dark blocks at certain scale

2011-11-25 Thread Michal Migurski
(neglected to include one link below) On Nov 25, 2011, at 11:20 AM, Michal Migurski wrote: When I convert the VRT to tiles using GDAL's python bindings, I get darkened tiles but only at one specific scale that's close to the original scale of the image. The output looks like this at zoom=7:

[gdal-dev] Bug? Gdalwarp produces images with dark blocks at certain scale

2011-11-25 Thread Michal Migurski
I think I'm experiencing a gdalwarp bug. Maybe two gdal bugs? Dark-colored blocks and misregistered output from a VRT with about a dozen or so ground control points. The problem looks like this: http://mike.teczno.com/img/gdalwarp-darkness/landcover-1km-merc-z7.jpg

[gdal-dev] OGR SQL, COUNT([DISTINCT] xx) and NULL values

2011-11-25 Thread Even Rouault
Hi, http://trac.osgeo.org/gdal/ticket/4354 : Currently, OGR SQL considers COUNT(a_column) as a synonym of COUNT(*). However the standard mandates that COUNT(a_column) only count non-NULL values, whereas COUNT(*) count all rows (after the effect of WHERE clause of course). So COUNT(a_column)

[gdal-dev] WKT EXTENSION - any docs or reference

2011-11-25 Thread Etienne Tourigny
Hi all, The WKT EXTENSION nodes are used in a few contexts, however I have not been able to find any documentation, aside from random web pages and mailing list comments about them. Could anyone point me to any existing documentation, and inform me on any other EXTENSION parameters that are

[gdal-dev] Re: Problems with transform raster image - try again !

2011-11-25 Thread Hermann Peifer
Another option would be to gdal_translate to a .vrt by using -a_srs srs_def EPSG:31466 -a_nodata value # in case you happen to know -a_ullr ulx uly lrx lry # coordinates at pixel edges, not their centre points Think about the .vrt as being the big brother of a world file. You might want to

[gdal-dev] A gdal-users mailing list?

2011-11-25 Thread Hermann Peifer
Hi all, Could it (perhaps) make sense to have a gdal-users mailing list, in analogy to grass-users, qgis-users, etc. ? I assume that, according to some logic, GDAL/OGR is considered to be a library from/for developers, not a GIS application for end-users. On the other hand, there are quite

Re: [gdal-dev] A gdal-users mailing list?

2011-11-25 Thread Eli Adam
Hermann, Just a note that this topic has been on the list before, http://lists.osgeo.org/pipermail/gdal-dev/2010-March/023779.html Bests, Eli Hi all, Could it (perhaps) make sense to have a gdal-users mailing list, in analogy to grass-users, qgis-users, etc. ? I assume that, according to