I would try to do a VRT file that describes both raster files and work
with that.
I don't have an good example but maybe this could get You started
together with the GDAL docs.
http://www.paolocorti.net/2012/03/08/gdal_virtual_formats/
/Lars S.
Matt McClelland skrev den 2015-07-23 08:54:
Hi
I have two raster files one for vegetation and one for population density.
The two rasters (tif's) are at different scales
I am using value based classification to paint the map green where
vegetation values are high.
Is there a way I can classify based on values from the two separate
files in the same layer
I can't see how this will work as you can only have one data item per
layer?? (but worth asking)
I am wanting to be able to do something like
EXPRESSION ([veg] <= 50 and [population] > 500)
The only option I can think of is to make the two files into a single
multiband tiff? This seems wasteful as one is much lower resolution
then the other.
thoughts??
thanks
Matt :)
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