[gdal-dev] RPC Transform Error: ERROR 1: latitude or longitude exceeded limits

[Etienne Tourigny]

Claire,

You may have to set the output extents manually with the -te option.

This has been the solution to many problems with gdalwarp.

Etienne


On Mon, Apr 9, 2012 at 11:12 AM, Claire Porter <claire.porter at gmail.com> wrote:
> Dmitry (and the list),
>
> Using the warp options you suggested does not make a difference.  Even
> SAMPLE_GRID does not significantly change the output.  I also tried using
> wgs84 as the output coordinate system in case it was an issue of being
> projected into Polar Stereographic: no luck.
>
> I copied the relevant functions from gdal_rpc.cpp into python order to test
> the RPC calculations independant of the warping functions and any projection
> system.  I used a sampling grid over the whole extent of whatever test image
> and found that the RPCs do not converge for any part of the error-prone
> images  In fact, with each iteration the offset from the original pixel gets
> further and further from zero (alternating sign each iteration).
>
> From these tests, I am guessing that the issue is not the sampling or the
> projection system.  Since other software packages can handle these images, I
> assume then that the issue is in how gdal is managing the RPCs.  Any ideas?
>
> Many thanks,
> Claire
>
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