[gdal-dev] query raster values by xy-location

[Andruit at gmx.de]

Hello,


I have an ESRI ascii raster and would like to get the raster values at defined x y locations. 
At the moment I am capable to load the Raster Dataset and can perform several operations like querying the  Min/Max values, the origin, the pixelsize and so on....

But is there a function to get the cell value of a raster at a certain location (x y)????

Has anybody done this before?

Thanks

Andi
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