[QGIS-trac] Re: [Quantum GIS] #1929: transparency of 0 value do not apply to GDAL virtual rasters (vrt)

[Quantum GIS]

#1929: transparency of 0 value do not apply to GDAL virtual rasters (vrt)
-----------------------------------------------------+----------------------
        Reporter:  pcav                              |         Owner:  ersts        
            Type:  bug                               |        Status:  assigned     
        Priority:  major: does not work as expected  |     Milestone:  Version 1.4.0
       Component:  Rasters                           |       Version:  HEAD         
      Resolution:                                    |      Keywords:               
Platform_version:                                    |      Platform:  All          
        Must_fix:  No                                |   Status_info:  1            
-----------------------------------------------------+----------------------
Comment (by brushtyler):

 Replying to [comment:6 brushtyler]:
 > This could be a buildvrt bug... I've opened a ticket on GDAL
 [http://trac.osgeo.org/gdal/ticket/3254 ticket].
 > They can add a new param to set which color is blanc (e.g. -nodata 0) or
 resolve this bug in another way.
 Hi all,[[BR]]
 the GDAL bug was closed as fixed in gdal 1.7.0 (the dev version actually
 in trunk)[[BR]]

 Below the ticket closing comment:[[BR]]
 -------
 Enhancement implemented in :

 r18146 /trunk/gdal/apps/ (gdal_utilities.dox gdalbuildvrt.cpp):
 gdalbuildvrt: add -srcnodata and -vrtnodata options, similar to the ones
 of gdalwarp, to set/override/unset the nodata settings at the source level
 and the VRTRasterBand level (#3254)

 r18147 /trunk/autotest/utilities/test_gdalbuildvrt.py: Add test for
 -srcnodata option of gdalbuildvrt (#3254)

 --> For your use case, 'gdalbuildvrt -srcnodata 0 out.vrt 250010.tif
 250020.tif' should do.
 -------

 I think that now, if there isn't other related problems, this ticket
 should be closed.

-- 
Ticket URL: <https://trac.osgeo.org/qgis/ticket/1929#comment:7>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats