FW: [UMN_MAPSERVER-USERS] dynamic colors in mapfile

[Matthew Perry]

Gerjan,

A simple alternative to SLD would be to append the following to your map 
request :

&map_road_Roads_color=255+255+0

where "road" is the LAYER NAME, "Roads" is the CLASS NAME, and 255+255+0 are 
the RGB values respectively.

just for reference, the mapfile entry would look like:

LAYER
NAME road
TYPE LINE
STATUS OFF
DATA road.shp
CLASS
NAME "Roads"
SYMBOL 0
COLOR 220 0 0
END
END # Layer

Of course this does not have the power of SLD but it gets the job done.

matt

On 9/15/05, Gerjan Walrecht <WalrechtG at vertis.nl> wrote:
> 
> Bart, 
> 
> To be honest we hadn't looked at this before, looks useful, but at the 
> moment we do not want to use an extra XML file only to pass a parameter. 
> (Where do were put the file, etc). Would you also happen to know how to file 
> a RFC?
> 
> Gerjan 
> 
> -----Oorspronkelijk bericht----- 
> Van: bartvde at xs4all.nl [mailto:bartvde at xs4all.nl <bartvde at xs4all.nl>] 
> Verzonden: donderdag 15 september 2005 9:41 
> Aan: Gerjan Walrecht 
> CC: mapserver-users at lists.umn.edu 
> Onderwerp: Re: [UMN_MAPSERVER-USERS] dynamic colors in mapfile 
> 
> Why not use the WMS SLD (Styled Layer Descriptor) interface of Mapserver 
> for that? 
> 
> http://mapserver.gis.umn.edu/doc46/sld-howto.html 
> 
> Best regards, 
> Bart 
> 
> > Hello List, 
> > 
> > 
> > 
> > Currently we are developing an Mapserver web application which demands 
> > that 
> > users can change the colors of the generated map (after refreshing the 
> map 
> > of course). We therefore wanted to use variables in the mapfile: 
> > 
> > 
> > 
> > ... 
> > 
> > COLOR '%color1%' 
> > 
> > ... 
> > 
> > 
> > 
> > But unfortunately this is impossible, or are we overlooking something? 
> If 
> > not, I would like to make a RFC for this, but I haven't figured out how 
> to 
> > do this, is there a procedure/documents to make a Request for change 
> > (RFC)? 
> > 
> > 
> > 
> > Thanks in advance! 
> > 
> > Gerjan 
> > 
> > 
> > 
> > 
> 
> 


-- 
Matt Perry
perrygeo at gmail.com
http://www.perrygeo.net
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