Raster layers and WMS / WCS

[Frank Warmerdam]

Kralidis,Tom [Burlington] wrote:
> Hi,
>
> The WCS wiki page at:
>
> http://mapserver.gis.umn.edu/cgi-bin/wiki.pl?WCSMapServer
>
> States:
>
> "Only non-WMS Rasters layers are candidates for WCS serving".
>
> How does this work?  I have defined a raster layer, yet it shows up in
> both WMS and WCS capabilities.  How can I make sure it's on for WCS and
> *not* WMS?  Mind you, if it's available via WCS (giving one all the
> data), there is (likely?) little/no harm in offering it up as a web
> image via WMS.

Tom,

I believe the comment means that you aren't supposed to try and serve
layers with CONNECTIONTYPE WMS via WCS.  I am not exactly sure why that
is, but I suspect it is something to do with the fact that WMS layers
can't be internally queried for detailed information on data type,
resolution and other information important to WCS.

I am quite confident there is no restriction on offering regular raster layers
by both WMS and WCS.  What is less clear to me is how you restrict whether
a layer is offered via WMS or WCS.  I guess just by ommitting required metadata
for that service?

Best regards,
--
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