[mapserver-users] color attribute question

[Do Wi]

hi!

i have this scenario:
i have a column in my postgis table which contains a double representing a
percentage.

i want to color my polygons in a gradient fashion based on that number.

the docs states three ways to specify color:
1. three [1-255] numbers
2. hex string
3. [attribute]

but the attribute must be a string by itself in the same format as options
1 or 2.

how can i achieve something like

COLOR [percentage]*255 0 0
or
COLOR [percentage] 0 0
if percentageis already 0..255

for a red gradient for example?

thanks allot!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/mapserver-users/attachments/20140622/33283cfb/attachment.htm>