On 11-06-30 10:20 AM, RSyaoxin wrote:
Hi,all.
      I want to correct the envisat N1 image, the gcps I used are come from
the image.This image haven't geo-referenced information and projection,but
it's GCPs have geo-referenced information.However I can not get correct
results,the corrected image pixels are all zero.Here is my code:
...

         psWarpOptions->nBandCount=0;

RSyaoxin,

I don't see anywhere that you establish the real list
of bands to be transferred.  Perhaps that is the problem?

In general the warp api is tricky to use, and if it is
sufficient for your needs to use a simplified interface
like GDALCreateAndReprojectImage() or GDALReprojectImage()
then I would encourage that.

Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmer...@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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