SLD Filter Using Default Mapfile Rendering

[Kralidis,Tom [Burlington]]

> -----Original Message-----
> From: UMN MapServer Users List 
> [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of John Fletcher
> Sent: Thursday, 02 December, 2004 17:54
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: Re: [UMN_MAPSERVER-USERS] SLD Filter Using Default 
> Mapfile Rendering
> 
> 
> > What you could do is, if the data you're fetching is
> > available as OGC:WFS, is use MapServer as a WFS client and 
> > apply the filter at the mapfile (or dynamically generated) 
> > level and assume the same rendering as per mapfile.
> 
> That's a really good idea - one I hadn't considered.  The 
> only problem is that I need to be able to apply a filter 
> dynamically through the CGI interface (I'm assuming Mapserver 
> doesn't expose any CGI interface to access the filter for WFS layers).
>

The filter in the LAYER/METADATA object is set as:

"wfs_filter" "somefilterstring"

...which you could set via map_layername_wfs_filter (the developers can
confirm this -- I'm guessing this is allowed.

..Tom

 
> Has there ever been talk of the implementation of a 
> DefaultSymbolizer in the SLD spec that would do this sort of 
> thing?  I suppose the SLD spec could also just recommend a 
> default action for a WMS to take if no Symbolizer is present. 
>  Of course, I could just be exposing my ignorance of the 
> whole subject...
> 
> Thanks for the help.
> 
> John
>