[OpenLayers-Users] Re: google and map with projection 4352

[teknocreator]

VM,

Well, I think perhaps now your mapfile should be in spherical mercator vs
lat/lon.  And Mapserver may not understand 900913, but 3857 (ours understood
the latter, version 6.0.1).  

So some snippets from ours:


MAP
  NAME          "WMS_Server_test"
  STATUS        ON
  IMAGETYPE      PNG
  EXTENT         -14000000 3000000 -7000000 7000000  #map extents in meters
...  
  WEB
        IMAGEPATH "/ourpath/test/img/tmp/ms_tmp/"
        IMAGEURL "http://oursite/test/img/tmp/ms_tmp/"
        METADATA
        "wms_title"                  "WMS Test " ## REQUIRED
        "wms_onlineresource"        
"http://localhost:8080/cgi-bin/mapserv?" ## Recommended
        "wms_srs"                    "EPSG:3857 EPSG:4326" ## Recommended
        "wms_abstract"               "This text describes my WMS service."
## Recommended
        "wms_enable_request" "*"
        "ows_enable_request" "*"
        "ows_sld_enable" "true"
        "wms_feature_info_mime_type" "text/html"
        END
  END

  PROJECTION
     "init=epsg:3857"
  END

There's more to it than this but hopefully this will help.  See the issue is
that if you define your map in lat/lon, you probably won't be able to use
the Google Maps backgrounds as the extents are defined in meters for
spherical mercator without somehow changing the map definition to match
(which might be possible somehow, but I haven't seen that in any examples). 
So to keep things consistent if you want to use the Google Maps layers, you
may want to change your mapfile so your map is in spherical mercator instead
of lat/lon.  Otherwise, you may have create some custom backgrounds that are
similar to Google Maps but in lat/lon instead.

Dave M


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