Colorize a map
Stephen Lime
steve.lime at dnr.state.mn.us
Thu Aug 17 08:33:29 PDT 2000
This is what classes are used for. You can set up expressions to classify
each county according to a particular xbase attribute. You'll get better
performance if you can preclassify values but it can be done on-the-fly
if you have to. Here's a two class example
CLASS
EXPRESSION ([DELIVERIES] > 0 and [DELEVERIES] < 1.5)
COLOR 255 0 0
END
CLASS
EXPRESSION ([DELIVERIES] > 1.5)
COLOR 0 255 0
END
Hope this helps...
Steve
Stephen Lime
Internet Applications Analyst
Minnesota DNR
500 Lafayette Road
St. Paul, MN 55155
651-297-2937
>>> Christian <christian at gottschling.net> 08/15/00 01:50PM >>>
Hello,
I have a map here and I want to colorize "counties" (german ones) depending
on their values in the dbf-File. I have found out how to label them with
that data, but not how to give them a color depending on the value.
We have different amounts of deliveries to the "counties" and now I want to
present them by different colors. Any possibility within the mapfile? One
problem could be that I don't know the highest value, it can differ.
Many thanks!
Greetings!
Christian
PS: Does anybody know that the archive-server for this list only shows 2
messages for August?
--
christian
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