[gdal-dev] "gdalwarp -te " units of source or target srs?

[Frank Warmerdam]

Matt Wilkie wrote:
> Hello,
> 
> With regards to gdalwarp target_extent parameter, are the coords for the 
> target coordinate system or the source coordinate system?
> from http://www.gdal.org/gdalwarp.html:
> 
>    -te xmin ymin xmax ymax:
>        set georeferenced extents of output file to be created.
> 
> I ask because I'm getting "ERROR 1: Attempt to create 11158x-7438 
> dataset is illegal,sizes must be larger than zero." and I don't know 
> whether it's because both the source and targe SRS have negative coords 
> in their extent or my clipping coords are out of bounds or something else.
> 
> gdalwarp -t_srs %dst_proj% in.tif out.tif -te -2949.031, 1322540.680 
> 1002042.239,  652516.412
> Creating output file that is 11158P x -7438L.
> ERROR 1: Attempt to create 11158x-7438 dataset is illegal,sizes must be 
> larger than zero.

Matt,

The -te arguments are in the output file coordinate system.

In your case the ymin value is larger than ymax which is causing
confusion.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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