Hi 

I would like to read a region of a raster map and re-project the resulting 
image on-the-fly before it is displayed. I had a look at the GDAL Warp API 
tutorial. And I stumbled across GDALWarpRegionToBuffer() while reading the 
header files. I had a look into the setup functions and found quite a variety 
of GDALCreateGenImgProjTransformer1..3() or 
GDALCreateReprojectionTransformer(). I have to admit that whole stuff leaves me 
a bit clueless.

Thus my question: 

Is there a tutorial or an open source project that does the same I want to do 
(I parsed the code of QGis without success)?

Or can someone tell me the correct API calls needed to do a re-projection 
on-the-fly. I think knowing what function sequence to use is already a big step 
forward for me.

Thanks

Oliver
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