[gdal-dev] Suggestion for API addition

[Even Rouault]

> The value of a new function is code clarity. It's not just computing
> pData, it's that the nBufXSize and nBufYSize become the size of the
> cropped region, not the size of the actual buffer,

I don't understand what you mean, sorry. Perhaps you should show the code. I 
understand that better than English ;-)

> > Not sure to understand that. The presence of nBufXSize, nBufYsize in your
> > proposal allows subsampling/oversampling. Perhaps you meant something
> > else with decimation/replication ?
> 
> You're right.  nPixelSpace and nLineSpace now become required, no
> default values will work.

Not understanding that either.