[Mapserver-users] GetLegendGraphic Rules?

[Kralidis,Tom [Burlington]]

Hi,

I've found this issue as well.  IMHO, a GetLegendGraphic request should
give back all classes with labels -- just like the MapServer CGI
"mode=legend" does.

I believe there is a ticket open on this issue.  As a temporary
workaround, what I do is:

- generate a legend image to disk (with MapServer CGI "mode=legend" or
./legend command line
- set KEYIMAGE in layer CLASS object to the image

..but I haven't tried this with multiple or scale dependent classes, and
not sure how it would work

At any rate, this would be a valued enhancement to the MapServer OGC:WMS
support.

..Tom

=========================
Tom Kralidis
Systems Scientist
Environment Canada
Tel: +01-905-336-4409
http://www.ec.gc.ca/


> -----Original Message-----
> From: mapserver-users-admin at lists.gis.umn.edu 
> [mailto:mapserver-users-admin at lists.gis.umn.edu] On Behalf Of 
> Richard Orchard
> Sent: Wednesday, June 16, 2004 11:00 PM
> To: mapserver-users at lists.gis.umn.edu
> Subject: [Mapserver-users] GetLegendGraphic Rules?
> 
> 
> hi,
> 
> I am using the following WMS request to get a legend:
> 
http://jimbeam.ermapper.com.au/mapserver/mapserv.exe?map=D:/webs/www3/Av
ein_
Demo.map&VERSION=1.1.1&REQUEST=GetLegendGraphic&service=WMS&LAYER=Geolog
y - indicating rock type&format=image/png


Unfortunately, this only produces the one graphic item without a label.

I would like display all the class items within the layer, each with a
label.  Is there a way of doing this?

I chased up some bug reports, and mailing list archives, etc, and they
mentioned specifying a rule.  What should the rule value be?

I am using mapServer 4.2.

Any help would be appreciated.


Richard





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