[gdal-dev] gdalbuildvrt could not use worldfile

[APM]

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 <apschwimmer at apmland.de 
> <mailto:apschwimmer at apmland.de>> 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
>     gdal-dev at lists.osgeo.org <mailto:gdal-dev at lists.osgeo.org>
>     https://lists.osgeo.org/mailman/listinfo/gdal-dev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/gdal-dev/attachments/20200820/53edf4ed/attachment.html>