[MAPSERVER-USERS] Dynamic Style rendering for MapServer WMS

[Diego Guidi]

Thanks for the suggest :)

On Tue, Mar 4, 2008 at 9:49 AM, Milo van der Linden
<mlinden at zeelandnet.nl> wrote:
> D_Guidi schreef:
>
> >  I'm relatively new to mapserver, but I've created a WMS service with
>  >  MapServer that publish SDE data in a fashion way and with a great
>  >  speed.
>  >  I'm using this WMS to publish my data via a webapp using OpenLayers,
>  >  and I want to make better my website trying to change dynamically the
>  >  style of my WMS maps...
>  >  The goal is to do this:
>  >  When the user query the data via getfeatureinfo, I want to reload the
>  >  image and show with a different color the feature queried.
>  >  With getfeatureinfo i could retrieve the ID of the selected feature,
>  >  so I need to change dynamically the STYLE definition of my mafile, or
>  >  something like this... any suggestion or a link to start reading docs
>  >  on how to do this?
>  >  Thanks :)
>  >  Diego Guidi
>  >
>  >
>  In the mapfile, add a copy definition of the layer you want to highlight
>
>  LAYER
>   NAME 'ps_highlight'
>   TRANSPARENCY 100
>   DUMP TRUE
>
>     TYPE POLYGON
>     DATA 'E:\mapdata\my_original_layer.shp'
>     METADATA
>       "ows_title" "ps_highlight"
>       "ows_srs" "EPSG:4326"
>     "gml_featureid" "id"
>     END
>     STATUS OFF
>     PROJECTION
>      "init=epsg:4326"
>     END
>     MAXSCALE 100000
>     CLASSITEM 'ID'
>     CLASS
>        #NAME 'selection'
>      EXPRESSION "%id%"
>        STYLE
>          SYMBOL 0
>          SIZE 6
>        WIDTH 3
>          OUTLINECOLOR 255 0 0
>          ANTIALIAS TRUE
>          COLOR 255 0 0
>        END
>     END
>   END
>
>  And now call this layer with a WMS GetMap request where you add
>  "&id=123" to the end of the request string.
>
>
>



-- 
Diego Guidi
http://lacorrente.blogspot.com