[Tilecache] WMS-T support

[Christopher Schmidt]

On Tue, Jun 02, 2009 at 03:34:15PM +0930, Jim Groffen wrote:
> Hello,
> 
> I've finished the work on the WMTS implementation in
> TileCache, but I need to:

Jim, 

It's unclear to me if you thought this response was relevant to th
ethread in question. Ill point out for the record that the thread 
was about *WMS-T* -- not WMTS. So though I appreciate your efforts and
look forward to your patch/patches, it may not be entirely relevant to
this thread.

-- Chris

> - update it to the main trunk version
> - improve the docs and maybe add more doctests
> - incorporate any feedback to get it contributed
> 
> The work was done for OWS-6 and is a RESTful implementation,
> I haven't implemented the KVP interface.
> 
> A major difference is The way you define the coverage of
> your tiles, this needs some nice documentation to make it
> as easy as possible.
> 
> There are only a couple of concerns I can see with my
> solution and its impact on TileCache. One of which is how
> I had to extend the config file reading. It's backwards
> compatible, but adds complication. In short the normal
> behavior of TileCache is to treat all sections as a layer
> definition except for an options section. My change added
> an option to the options section that allows you to list
> config sections that are to be treated as TileMatrixSets
> and not layers. This has no impact on existing config
> files but the changes are in Server.py and not small. I
> tried to have as few changes impact files besides the
> wmts.py layer and service files as possible.
> 
> I'll hopefully have a patch prepared some-time next week,
> so I can get some feedback.
> 
> Regards,
> 
> Jim Groffen.
> 
> -----Original Message-----
> From: tilecache-bounces at openlayers.org [mailto:tilecache-bounces at openlayers.org] On Behalf Of Christopher Schmidt
> Sent: Tuesday, 2 June 2009 6:51 AM
> To: Brian Walawender
> Cc: tilecache at openlayers.org
> Subject: Re: [Tilecache] WMS-T support
> 
> On Mon, Jun 01, 2009 at 03:38:48PM -0500, Brian Walawender wrote:
> > Hello,
> >
> > Can I make WMS-T requests to tilecache?   My WMS requests look like:
> >
> > radar =  new OpenLayers.Layer.WMS( "TWX",
> >         "http://
> > 216.38.80.111/cgi-bin/mapserv?map=/usr/local/mapserver_config/TWX_time.map",
> >         {
> >                layers: 'TWX_N0R',
> >                transparent: true,
> >                time: '2009-06-01T15:55',
> >                format: 'image/png'
> >         }, {
> >                singleTile: true,
> >                isBaseLayer: false,
> >                opacity: 0.9
> >         }
> > );
> >
> > My tilecache requests would look like:
> >
> > tc_url = ['http://radarcache.srh.noaa.gov/tilecache/tilecache.py'];
> >
> > radar = new OpenLayers.Layer.WMS( "State Borders", tc_url,
> >         {
> >                layers: 'TWX_N0R',
> >                transparent: true,
> >                format: 'image/png'
> >        }, {
> >                singleTile: false,
> >                isBaseLayer: false,
> >                opacity: 1.0
> >        }
> > );
> >
> > Is time a recognized param for tilecache?
> 
> No.
> 
> I feel like fredj wrote a patch that would allow you to create different
> cache directories based on a specific parameter in the URL. However, I
> don't remember ever integrating it, so there's a good chance that it got
> lost in mailing list traffic. I would say that this would be the place
> to look -- either in the code or in the mailing list for such a thing.
> (Perhaps fredj can find it more easily, if he's listening.)
> 
> 
> Regards,
> --
> Christopher Schmidt
> MetaCarta
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-- 
Christopher Schmidt
MetaCarta