Re: [gdal-dev] Reading the data 'backwards'

2009-11-20 Thread tasmith3
I tried your suggestion of using a modified buffer offset and a negative nLineSpace parameter, and it worked! Very clever and well done! Thanks, Todd___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev

Re: [gdal-dev] Reading the data 'backwards'

2009-11-20 Thread Even Rouault
tasmi...@rockwellcollins.com a écrit : Sometimes, it is desirable for GDAL not try to be too smart ;-) However I think you can achieve what you want if you provide the buffer with the right offset and a negative nLineSpace parameter. Something like that (untested !) : void* pBuffer = malloc(

[gdal-dev] Reading the data 'backwards'

2009-11-20 Thread tasmith3
I work with code that handles data in a particular way. Instead of using the top-left corner as the origin, it uses the bottom left. It treats the data as if it's sitting in quadrant 1 on an X-Y plane with the bottom left corner sitting on the origin. The code expects me to read in the data