[OpenLayers-Dev] WMS server manager

[Lorenzo Becchi]

Hi Lance, thanks for the reply.

more than questions on how to implement (I have an idea about all of 
them) those where questions about how to operate.
I've created a libs/OpenLayers/control/WMSManager.js class starting from 
LayerSwitcher.js, and now I would like to extend it with all those 
features I've listed in those questions but I would to decide all 
together (if you're interested) how to go further and what to do first.

I can do a monolithic library or better create a legend object  that 
both WMSManager and LayerSwitcher could use.
does this make sense?

ciao
Lorenzo




Lance Dyas wrote:
> Lorenzo Becchi wrote:
>> Hi,
>> I've reachead my very minimum target and I would like to debate the 
>> result with who's interested:
>> http://www.ominiverdi.org/openlayers/examples/wms_manager.html
>>
>> I've blocked the list of server for better usability but we can think 
>> to have a free field too.
>>
>>   
> There are some extensive retrievable server lists in XML that could be 
> quite useable
> one currently at refractions and microimages is developing a similar 
> one, there is no "simple" standard
> for this though so it is a bit of a hack... WCS support would be even nicer
> but...
>> as far as I've played with it, some questions arise:
>>
>> 1) how to shift up and down a layer in the legend?
>>   
> changing the maps layer list order...
>> 2) how to change opacity for a single layer on the fly?
>> 3) how to drop a layer?
>> 4) how to deal with different layer projections and extents
> some wms will reproject whatever they have in to what you need if you 
> know an extent box for it, but it is definitely not something
> you can rely on.
> 
>> 5) how to deal with transparent layers (png) and overlays?
>>   
> For servers which have gifs I have found that they usually handle them 
> better than pngs other wise use pngs for overlays
> 
> More later
> 
>