Hi,
I have a raster file with different bands inside it.
when I create my mapfile inside the layer tag I can define the bands I
want to access with PROCESSING "BANDS=4,2,1"
When I select 1 band I can access to its data using the EXPRESSION tag:
CLASS
NAME "0 - 5"
EXPRESSION ([pixel] >= 0 AND [pixel] < 5)
STYLE
COLOR 80 0 0
END
END
But if I select more than one band, how can I do to acces to the
different band values inside the same EXPRESSION tag? is it possible?
The problem is that I have wind information in different bands, in one
band I have speed and in other band I have direction, and I have to draw
the wind symbol depending on both values.
Is possible to acces to the different pixel band values inside the same
EXPRESSION tag?
Thanks,
Helen
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