Sorry Even. Disregard my last message. Thanks for your help.
-bborie
On 05/05/2011 11:16 AM, Even Rouault wrote:
Le mercredi 04 mai 2011 16:52:02, Bborie Park a écrit :
Hi,
I'm currently in the process of seeing what can be done to expose
GDAL's C warp functions to PostGIS Raster and am wondering if I have
hit a roadblock.
> From the docs for gdal_alg.h, it appears that the warp functionality
available is limited to GDALSimpleImageWarp and its limitations. Is
this conclusion correct? I did take a look at gdalwarpsimple.c
(https://svn.osgeo.org/gdal/trunk/gdal/apps/gdalwarpsimple.c) and it
appears to confirm my initial thoughts.
Are there any plans to expand the C warp API? If not, would anyone
mind if I took a stab at it?
I was going to answer : no, indeed there isn't any C warp API for the "full
warping mode" (i.e. for what would be needed by the gdalwarp utility), because
I know that gdalwarp.cpp (the source code of gdalwarp utility) use a few C++
warp API, but I rechecked for confirmation and in alg/gdalwarper.h I can
actually see :
GDALWarpOperationH CPL_DLL GDALCreateWarpOperation(const GDALWarpOptions* );
void CPL_DLL GDALDestroyWarpOperation( GDALWarpOperationH );
CPLErr CPL_DLL GDALChunkAndWarpImage( GDALWarpOperationH, int, int, int, int
);
CPLErr CPL_DLL GDALChunkAndWarpMulti( GDALWarpOperationH, int, int, int, int
);
So I believe you can accomplish from C code all what gdalwarp does currently
do. Do you need something else ?
Thanks,
Bborie
--
Bborie Park
Programmer
Center for Vectorborne Diseases
UC Davis
530-752-8380
[email protected]
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