4D Raster access NOT via WMS?

[Samuel Hiatt]

Hi!  Thanks for the reply.

So I suppose when I make a WMS request with TIME Mapserver applies the
filter behind the scenes, finding which feature in my tile_index.shp
represents the correct time and then processes the raster pointed to by that
feature?  So if I want to implement the same kind of thing with mapscript
I'd have to write the filter myself?

The reason I am interested in doing this is to extend temporal functionality
to ka-map.  I may end up abandoning that approach and moving to a javascript
WMS client (like OpenLayers of MapBuilder) instead.

Thanks for your help.

Sam



On 10/11/07, Yewondwossen Assefa <assefa at dmsolutions.ca> wrote:
>
> Hi there,
>
>   The Time parameter that is sent with a WMS request is simply converted
> to a time expression and set on the filter object of the layer. In the
> case of wms. the metadata wms_timeitem will be used for the attribute
> name.
>   if you are using mapscript, you would need to build the time
> expression manually and set the filter parameter. Please refer to
> http://mapserver.gis.umn.edu/docs/howto/wms_time_support (section 2.5)
> to see how time parameters are interpreted.
>
> Best Regards,
>
>
> Samuel Hiatt wrote:
> > I am excited to see that Mapserver supports 4D raster layers for WMS,
> > but I am curious if this functionality can be extended to mapscript
> > calls as well?  For example, if I set up a raster layer with a TIME
> > dimension then will it be possible for me to request an image for a
> > specific time with mapscript?  Or would I have to do this with a WMS
> call?
> >
> > Thanks!
> >
> > Sam
>
>
> --
> ----------------------------------------------------------------
> Assefa Yewondwossen
> Software Analyst
>
> Email: assefa at dmsolutions.ca
> http://www.dmsolutions.ca/
>
> Phone: (613) 565-5056 (ext 14)
> Fax:   (613) 565-0925
> ----------------------------------------------------------------
>
>
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