[GRASS-user] ogr2ogr and ortho/rgb display

Dylan Beaudette dylan.beaudette at gmail.com
Fri Jan 5 17:37:10 EST 2007


On Friday 05 January 2007 13:07, Daniel Farnan wrote:
> I am having unusual difficulty getting orthos from USGS to display (d.rgb
> red=... green=... blue=...), I had initially included the out=... but that
> was an error which read as invalid. The files will display in QGIS though -
> both in full color and as the individual GRASS misc cells.
>
> I have the correct syntax for ogr2ogr but do not know which directory to
> copy the file to in order for the program to perform the re-projection.
> I have not been able to find the list for the re-projection codes (though I
> looked up epsg codes in the epsg table and have been trying with that
> designation) and have tried a variety of possible solutions, in the
> location folder, and grassdata, which have not provided a result - searched
> the grass user e-mails and wiki with no result.
>
> Any help appreciated - could not find this help in the book or elsewhere I
> looked.
> Re-direct(s) for harder to find OS GIS tutorials/manuals welcome, I have
> most of the easier to find ones available as well as the userlist e-mails
> and wiki url.
>
>  Daniel Farnan
>  Office phone?415-284-9662

Hi Daniel,

ogr2ogr is used for the projection / inverse projection of vector data. From 
your message it sounds like you needs to perform projection / inverse 
projection on raster data. If this is the case you will want to use the 
program gdalwarp . Can you post some examples of what you are specifically 
trying to do ?

Cheers,

Dylan

-- 
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341




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