[Mapserver-users] Point color by attribute

[Gerry Creager N5JXS]

OK, so the subject's not real clear.

I would like to be able to change the color attribute of a point object 
in the mapfile based on a value retrieved from postgres.  Can I do 
something like this without dynamically rebuilding the mapfile every 
time I access the database?

Specifically, when I'm building the shapefile, I'd like to have the 
various points associated with a layer vary depending on their value, as 
placed in the dbf.

In the link below, highlight 'Precip. Water Vapor' to see the values. 
I'd like to make that selection A) display a point that is B) varied in 
color with relation to the value of the PWV parameter.

http://mesodev.met.tamu.edu//cgi-bin/mapserv?map=%2Fvar%2Fwww%2Fmesonet%2Ftexas%2Fmesonet.map&layer=weather-metar&layer=weather-mtemp&layer=weather-mlabel&layer=weather-mdew&layer=weather-barbs&zoomsize=2&program=%2Fcgi-bin%2Fmapserv&map_web_imagepath=%2Fvar%2Fwww%2Fmesonet%2Ftmp%2F&map_web_imageurl=%2Ftmp%2F

Thanks, Gerry
-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
Cell: 979.229.4301 Office: 979.458.4020 FAX: 979.847.8578
Page: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843