time queries with mapserver 4.4.1

[Yewondwossen Assefa]

Stefan,


Stefan,

  I am not sure that the wms time support does what you are expecting
(unless I misunderstood you) :
  The time support does queries based on *one* field item (the field
item is determined by the value in the metadata wms_timeitem). It does
not use diffrent fields to do queries. Basically the wms TIME value
passed as argument is set  on layer's filter parameter (eg if the wms
TIEM value is 2004-10-12 and the wms_timeitem is TIME, your filler would
be set like `[TIME]` eq `2004-10-12`).
  If I misunderstood your case, please let me know.

Later,


Stefan Schwarzer wrote:
> Hi,
>
> I have lots of national yearly statistical data sets. For making time
> queries:
>
> a) does it support shapefiles with data for different years?
> b) The document mentioned below indicates that it can query for a year,
> but the title-field in the dbf file can't contain only a number. Thus I
> changed the titles to Y_1990, Y_1991, etc... How can I deal with that?
> c) Does somebody have a working example?
>
> Stef
>
>
>     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
>     ----------------------------------------------------------------
>
>
>
>
>
>         _______________________________________
>
>         *Stefan Schwarzer
> *        GIS & Data Management
>
>         UNEP/DEWA/GRID-Geneva
>         Chemin des Anemones 11
>         CH - 1219 Chatelaine
>         Switzerland
>
>         Tel: (+41) 22.917.83.49
>         Fax: (+41) 22.917.80.29
>
>         Internet: http://geodata.grid.unep.ch/
>         _______________________________________


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

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

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