[Gdal-dev] Implementing GDALRasterBand::IRasterIO

Pushkar Pradhan pushkar at GRI.MsState.Edu
Thu Jan 15 18:02:23 EST 2004


>     int nXSize = poBand->GetXSize();
>     int nYSize = poBand->GetYSize();
>  
>     float *pafData = (float *) CPLMalloc(sizeof(float)*nXSize*nYSize);
>     poBand->RasterIO(GF_Read, 0, 0, nXSize, nYSize,
>                      pafData, nXSize, nYSize, GDT_Float32,
>                      0, 0);
> A few misc. questions: Are band numbers indexed using a ones-based
> scheme? How about the n{X,Y}Offset parameters? From the docs it looks
> like ban numbers *do* use ones-based indexing, but I want to be sure.
> Same for the offsets.


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