[Mapserver-users] CLASS Expressions
John McCue
jmccue at geovue.com
Fri Jan 24 12:12:00 PST 2003
I would like to use an expression something like:
CLASS
NAME "0 - 5%"
EXPRESSION (([RACCYBLACK] + [RACCYASIAN] + [RACCYOTH])/[POPCY]*100 >= 0
AND ([RACCYBLACK] + [RACCYASIAN] + [RACCYOTH])/[POPCY]*100 <= 5)
COLOR 120 120 255
END
Is this valid in MapServer (v.3.6.3, Windows)?
[RACCYBLACK], [RACCYASIAN], [RACCYOTH] and [POPCY] are all fields in the dbf
of my shape file.
- Do I need to delimit the expression with / /?
- What field should appear in the CLASSITEM?
Thanks,
John
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