[Gdal-dev] Using VRT to project/rotate tiff files on-the-fly

[David M Nelson]

I have a series of unprojected, single-frame images.  We want to be able to
project them on-the-fly by generating a VRT file for each image.  However,
none of the images are oriented north-up--they are all uniquely oriented
because of the flightpath taken by the platform during the time of
acquisition.  I have not been able to find a way to generate a VRT that
takes orientation into account.  I tried to use the X-rotation and the
Y-rotation, but this completely distorts the image setting some of the
coordinate values to 35,000+ deg.  I think that the orientation values are
supposed to be for the reference frame anyway and not the images (?).

So my question is: is there a way to generate a VRT file which will project
and orient correctly an unprojected image?

Thanks for your help!

David
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