[gdal-dev] Warping without shear

[Joaquim Luis]

On 16-12-2011 18:50, Jan Hartmann wrote:
> On 16-12-2011 18:25, Joaquim Luis wrote:
>> Jan,
>>
>> What you want is to apply a transformation called (at least on the 
>> Matlab parlance) "Linear conformal" which an afine transform but 
>> without the the shear terms. Mirone has it implemented and if your 
>> image has the GCPS embedded the operation is really simple.
> Thanks Joaquim, that's exactly what I meant. How can I use Mirone's 
> implementation?

See the manual for example at (the program comes with a .chm version 
too). Expand the "Image->Register Image" entry

http://w3.ualg.pt/~jluis/mirone_/files/DrawGCPoints2.html

the above link is from an old-to-be-updated page. For program download 
use w3.ualg.pt/~jluis/mirone

Joaquim
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