It might indeed be the missing CRS info (world files include only the pixel size and corner pixel). Try to add the -a_srs parameter as Jukka suggested. for instance, add "-a_srs EPSG:32632" (if you are using WGS84 / UTM Zone 32N https://epsg.io/32632 <https://epsg.io/32630>)
On Thu, 20 Aug 2020 at 15:11, APM <[email protected]> wrote: > Dear Idan, > > > thank you for your input. > > > I use the .vrt step to assemble a group of tif's to one common file. > > In a second step I use something like > > gdal_translate -of GTiff -co COMPRESS=LZW -co tiled=yes maps.vrt maps.tiff > > But the maps.tiff has no georeference data's as well. > > > This two steps works well with other Geotiff tiles, but maybe there's a > more easy way to create one map from several tiles. > > > Kind regards > > > Piet > > > > > > Am 20.08.20 um 13:49 schrieb Idan Miara: > > Hi, > > According to gdalinfo your vrt looks fine, so it might be a problem with > the vrt support in mapviewer. > What are you trying to accomplish with this vrt? if you just want to > georeference your tif you could try: > gdal_translate -of GTiff input.tif ouput.tif > use "-co COMPRESS=DEFLATE -co TILED=YES -co BIGTIFF=IF_SAFER" or other > gtiff parameters as needed: > https://gdal.org/drivers/raster/gtiff.html > > Idan > > > On Thu, 20 Aug 2020 at 12:49, APM <[email protected]> wrote: > >> Hello list, >> >> >> I'm a beginner with gdal and use Linux Debian testing as the OS. >> >> >> I like to create a .vrt file to use a map. >> >> The map comes with a worldfile .tfw: >> >> 1.2700000000 >> 0.0000000000 >> 0.0000000000 >> -1.2700000000 >> 376279.1000000000 >> 5679613.9199999999 >> >> >> If I try to build the .vrt by using >> >> >> gdalbuildvrt map_1.vrt map_1.tif >> >> >> The .vrt is present now. >> >> >> But I can't use it in a mapviewer, which gives out a message, that the >> georeferences are not present. >> >> >> gdalinfo map_1.tif >> Driver: GTiff/GeoTIFF >> Files: map_1.tif >> map_1.tfw >> Size is 16252, 13444 >> Origin = (376278.464999999967404,5679614.554999999701977) >> Pixel Size = (1.270000000000000,-1.270000000000000) >> Image Structure Metadata: >> COMPRESSION=DEFLATE >> INTERLEAVE=PIXEL >> Corner Coordinates: >> Upper Left ( 376278.465, 5679614.555) >> Lower Left ( 376278.465, 5662540.675) >> Upper Right ( 396918.505, 5679614.555) >> Lower Right ( 396918.505, 5662540.675) >> Center ( 386598.485, 5671077.615) >> Band 1 Block=128x128 Type=Byte, ColorInterp=Red >> NoData Value=0 >> Band 2 Block=128x128 Type=Byte, ColorInterp=Green >> NoData Value=0 >> Band 3 Block=128x128 Type=Byte, ColorInterp=Blue >> NoData Value=0 >> >> >> gdalinfo map_1.vrt >> Driver: VRT/Virtual Raster >> Files: map_1.vrt >> map_1.tif >> Size is 16252, 13444 >> Origin = (376278.464999999967404,5679614.554999999701977) >> Pixel Size = (1.270000000000000,-1.270000000000000) >> Corner Coordinates: >> Upper Left ( 376278.465, 5679614.555) >> Lower Left ( 376278.465, 5662540.675) >> Upper Right ( 396918.505, 5679614.555) >> Lower Right ( 396918.505, 5662540.675) >> Center ( 386598.485, 5671077.615) >> Band 1 Block=128x128 Type=Byte, ColorInterp=Red >> NoData Value=0 >> Band 2 Block=128x128 Type=Byte, ColorInterp=Green >> NoData Value=0 >> Band 3 Block=128x128 Type=Byte, ColorInterp=Blue >> NoData Value=0 >> >> >> Can you give me a hint, please? >> >> >> Thank you! >> >> >> KR >> >> Piet >> >> >> >> >> _______________________________________________ >> gdal-dev mailing list >> [email protected] >> https://lists.osgeo.org/mailman/listinfo/gdal-dev > >
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