[Chameleon] WMS Layer Selector

[Paul Spencer]

Tim,

Pascoe,Tim [Burlington] wrote:
>         Is there a way of incorporating something like the WMSBrowser 
> widget in an application, without having to implement a popup style of 
> window/interface? I would like to be able to provide a static list of 
> available WMS servers, and allow users to select layers from each of 
> these servers depending on their needs.

no, currently the WMSBrowser is only available as a popup.  There is no 
other widget that exists (AFAIK) that would do this either :(

> 
>         If this is not possible, is there a way to incorporate multiple 
> WMS layer names into a single layer object within a map file? WMS 
> servers for both British Columbia and Ontario provide a great deal of 
> information, but I do not want to have 100+ layer objects in my map file 
> to manage.

yes.  you can set the wms_name metadata on a WMS layer to be a 
comma-separated list of names.  They all have to come from the same 
server.  Alternately, you can add LAYERS=layer1,layer2,layer3 to the URL 
you provide as the connection in the map file.

> 
>         On a related note (perhaps this would be more appropriate in the 
> MapServer list), if there are a great deal of layers in the map file, 
> will the implementation of a wms_extent metadata tag keep MapServer from 
> making a request to the WMS server, if the layer is outside of the 
> requested map extent?

you are right, this is a mapserver list question ... I don't really know 
the answer :)

> 
>         Thanks for any suggestions,
> 
> Timothy Pascoe
> 
> 
> Environment Canada / Environnement Canada
> Canada Centre for Inland Waters / Centre Canadien des Eaux Intérieures
> 867 Lakeshore Road / 867, chemin Lakeshore
> Burlington, Ontario / Burlington (Ontario)
> 
> L7R 4A6
> 
> Tel/Tél: (905) 336-6025
> Fax/Téléc: (905) 336-4699
> E-mail/C. élec: ___tim.pascoe at ec.gc.ca_ <mailto:tim.pascoe at ec.gc.ca>
> Government of Canada/Gouvernement du Canada
> 
> /This e-mail represents the opinions and views solely held by its author 
> and in no manner may be considered as representing those of his/her 
> employer./
> 
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|Paul Spencer                           pspencer at dmsolutions.ca   |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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