[gdal-dev] Re: Re: Strange things with gdalwarp ...

2009-08-17 Thread Rahkonen Jukka
From: Hermann Peifer gmx.eu> > A promising approach seemed to be to warp/resample the ASTER files one by one > and create 1500 separate tiles > in LAEA projection, as an intermediate step. Then I created a vrt file with > gdalbuildvrt and > gdal_translated it into tiff format. The result did h

Re: [gdal-dev] Re: Strange things with gdalwarp ...

2009-08-17 Thread Hermann Peifer
Robert Coup wrote On Sat, Aug 15, 2009 at 10:57 PM, Hermann Peifer wrote: I have the same observation while working with ASTER GDEM tiles (1x1 degree tiles, 3601x3601 pixel each). When warping/merging, say: 10 tiles into a single outfile.tif, then it takes gdalwarp around 5 seconds per tile to

[gdal-dev] GDALDataset - not writing to aux.xml?

2009-08-17 Thread Michael Dillon
I'm using the csharp swig wrappers to get information from various types of imagery. I'm relying on the data to be stored in the *.aux.xml file for later retrieval. For NITF imagery, this seems to work fine. For GeoTiffs however, none of the file's metadata is stored when I call FlushCache()

[gdal-dev] OGRSpatialReference problem in QGIS

2009-08-17 Thread Florian Hillen
Hi list, I have a problem with OGR, more precisely with OGR in Quantum GIS. For my Plugin which reprojects rasterdata to another CS, I need a WKT description of the new CS. With the class "QgsProjectionSelector" of Quantum GIS I can select a CS and read out the epsg code or the proj4 string. But