[gdal-dev] How to access a part of an image

[Andreas Theofilu]

Am Montag, 16. Juni 2008 22:00:15 schrieben Sie:
> Andreas,
>
> If you use RasterIO the nXSize,nYSiye should correspond to the
> nBufXSize nBufYSize to avoid the image decimation / replication
> according to
> http://www.gdal.org/classGDALDataset.html#e077c53268d2272eebed10b891a05743
>
Thanks. This is the case and in the mean time I found out how I can load only 
a part of the image. What I'm searching for is a function or a way to define 
the dimensions of the image in geo coordinates and have a function giving me 
the pixel coordinate, width and height of the wanted part of the image. But 
such functions seems not to be part of GDAL.

-- 
Andreas Theofilu
TheoSys - Software Systems and Solutions
http://www.theosys.at
Tel.: +43 676 / 786 53 89