time queries with mapserver 4.4.1

[Yewondwossen Assefa]

There is a doc explaining the current wms time support in Mapserver at :
http://mapserver.gis.umn.edu/doc/wms-time-support-howto.html

Later,

Trond Michelsen wrote:

> Hi.
>
> I'm still unsuccessful in trying to understand how to make a time
> query in mapserver 4.4.1, and I'd appreciate any help on the subject.
>
> I have several layers that I access with WMS through mapserver, and
> some of these layers can show data for different dates and times.
> Here's an example of a layer definition in my map file.
>
> --8<--
> LAYER
>     NAME "wind"
>     STATUS ON
>     TYPE RASTER
>     OFFSITE 255 255 255
>
>     CONNECTION "http://wmsserver/cgi-bin/wms.cgi?"
>     CONNECTIONTYPE WMS
>
>     PROJECTION
>       "proj=stere"
>       "a=6371000"
>       "b=6371000"
>       "lat_0=90"
>       "lat_ts=60"
>       "lon_0=0"
>     END
>
>     METADATA
>       "wms_name"            "wind"
>       "wms_server_version"  "1.1.1"
>       "wms_formatlist"      "image/png"
>       "wms_format"          "image/png"
>     END
>
> END
> --8<--
>
> I've seen suggestions that it's possible to use %var% for every
> parameter in the query string, so I tried to add "wms_time %time%" to
> the metadata, and then add a select-box with appropriate dates to the
> web-page, but that passed "time=%25time%25" to the WMS-server.
>
> Being able to make queries at all is of course the most important
> issue I'd like to have solved, but I'm also a bit curious about how I
> define which times that are appropriate. How do I configure the
> mapfile, so that mapserv.cgi adds the proper <dimension>-tag to a
> GetCapabilities response? Also, is it possible to get mapserv.cgi to
> automatically fill inn available dates in the web template, or will I
> have to change it every time the available dates changes?
>
> --
> Trond Michelsen
>


--
----------------------------------------------------------------
Assefa Yewondwossen
Software Analyst

Email: assefa at dmsolutions.ca
http://www.dmsolutions.ca/

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925
----------------------------------------------------------------