Anaxa Gore a écrit :
> I want to reproject a GridCoverage2D.
> My problem is : when the reprojection is processing, I get an exception
> because of negative values in my GridCoverage2D. As I don't need them, I
> would like to put some 0 instead of negative values, but I can't find
> any information on this topic.
> I saw in the javadoc that some setDataBlok() methods exist, but I can't
> understand how do they work and if it was what I was searching for...
> Somebody can give me an idea or a piece of code ?
As far as I remember the setDataBlock() methods are not implemented and may be
removed in a future version. Modifying a data in a GridCoverage2D is modifying
pixel values in a WritableRenderedImage.
I could give you some tips (basically I suggest to use JAI iterators). However
before to do so, I wonder why you get an exception will reprojecting. I would
expect the reprojection to work even with negative values. Which code are you
using for reprojecting?
Martin
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