[OpenLayers-Trac] [OpenLayers] #2914: Respect layer projection if it equals the map projection

[OpenLayers]

#2914: Respect layer projection if it equals the map projection
-----------------------+----------------------------------------------------
 Reporter:  ahocevar   |       Owner:  euzuro      
     Type:  feature    |      Status:  new         
 Priority:  minor      |   Milestone:  2.11 Release
Component:  Layer.WMS  |     Version:  2.10        
 Keywords:             |       State:              
-----------------------+----------------------------------------------------
 With several projection codes available for the same projection, but WMS
 servers that do not support all of these, it makes sense to respect the
 layer projection for WMS GetMap requests when they equal the map
 projection.

 Let's say our map is in EPSG:3857, the official web mercator EPSG code,
 but it uses a layer that only supports the equal EPSG:900913 projection,
 we should be able to do:
 {{{
 var map = new OpenLayers.Map("map", {
     projection: "EPSG:3857"
     /* ... */
 });
 var layer = new OpenLayers.Layer.WMS("mywms", "/path/to/wms",
     {layers: "world"},
     {projection: "EPSG:900913"}
 );
 }}}

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Ticket URL: <http://trac.openlayers.org/ticket/2914>
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