[gdal-dev] gdalwarp _ RPC_DEM ignored ?

[Even Rouault]

Le mercredi 19 mars 2014 09:18:10, alain Sauter a écrit :
> Hi,
> 
> thank you for your answer. I probably misunderstood the relation between
> RPC and GPC.
> Ivan, thank you for the link,
> Dimitriy, I did not define any coefficient (i did'nt know that i have
> to...).
> 
> I used to orthorectify my photo with Erdas Imagine, wich was, in a way,
> more easier : only define GPC, link a DEM and it was almost done...

Alain,

There's currently no warning if you don't use appropriately -to options. So if 
you have no RPC information, but only GCPs, a polynomial fitting of your GCPs 
will be done. And only the RPC warping takes into account DEM.

Even

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