Hermann wrote:
> I see that d.out.file has a switch: -m (Do NOT crop
> away margins). So I assume that by default, white margins
> are auto-cropped.
IIRC it depends on the output type.
I can't remember how many methods I exteneded that to.
> What I am looking for is some sort of auto-crop
> feature which I could use with r.out.gdal, in order to get
> rid of abundant NODATA margins in raster layers.
g.region rast=your_map
g.region zoom=your_map
r.out.gdal ...
d.out.file is just a shell script, you can look in it for
the commands used to figure out the cropping. (I expect d.info
and g.region)
> What I am currently doing: I identify a raster layer's data
> extent visually before changing the region and then running
> r.out.gdal. However, I might miss some islands at the
> edges...
try 'g.region zoom='
Hamish
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