CGI MapServer, Dynamic Points

[Chip Hankley]

Thanks, but I don't think that's what I was looking for. I have a bunch
of observations (2000+) in a database (MS Access) where I have X and Y
coordinates for each observation. I want to be able to create a layer in
the mapfile that reads the database directly and plots them on a map. In
the ESRI world this would be an event theme.

I'm assuming that in the example provided, I would end up with a *very*
long URL to make all the points appear.
 
I got one response that said I should use OGR VRT tables, so I'm going
to try that.
 
Thanks for the respone.
 
Chip

----------------------------
Chip Hankley
RMT, Inc.
chip.hankley at rmtinc.com
608.662.5498 (Direct)
----------------------------


>>> Steve Lime <Steve.Lime at DNR.STATE.MN.US> 5/25/2006 3:33 PM >>>

You mean add points dynamically to a map via a URL call to the CGI? If
so that's
pretty easy. There are 2 steps:

  1) add a layer to symbolize the points with

e.g.

LAYER
  NAME 'site'
  TYPE POINT
  STATUS OFF
  CLASS
    SYMBOL 'circle' SIZE 5 COLOR 255 0 0 OUTLINECOLOR 0 0 0
  END
END

  2) define the point in the URL

e.g.

http://maps.dnr.state.mn.us/cgi-bin/mapserv410?map=/usr/local/www/docs_maps/waters/csg/reference.map&mode=map&layer=site&map_site_feature_points=582248.23+4841497.11


You can also add text if you define a label and use
map_site_feature_text to pass the text.

Steve

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