raster layer properties and mask patches

[Jonathan Coles]

Am Mittwoch, den 26.01.2005, 11:44 -0500 schrieb Jonathan Coles:
> agreed. in fact, i think that gdal supports specifying NO_DATA values as
> complex numbers. i imagine that the color bands will all be real values,
> so it could be possible to distinguish what truly is part of the
> original image. ProjectRasterFile could return the image array and also
> a mask array.
> 
> this will take some time to prepare because the interface that we
> currently use for the warping code is the "simple" version, which
> doesn't allow for things such as specifying NO_DATA values as complex
> numbers. for now, do you think that what i currently have is an
> acceptable half way point? at least people are able to overlay images.


better still: gdal supports alpha bands. this should really simplify the
code. i'll start investigating it.

--jonathan

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 Jonathan Coles                               http://www.jpcoles.com
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