[mapserver-users] Map projection not right in Openlayers

[Stephen Woodbridge]

This now sounds more like a OpenLayers question and you should be asking 
in that list. My OL file look like this and they work:

         var map;
         var epsg4326 = new OpenLayers.Projection("EPSG:4326");
         var epsg900913 = new OpenLayers.Projection("EPSG:900913");

         function init(){

             map = new OpenLayers.Map('map', {
                 maxResolution: 156543.0339/2,
                 numZoomLevels: 18,
                 units: 'm',
                 maxExtent: new OpenLayers.Bounds(-20037508.34, 
-20037508.34, 20037508.34, 20037508.34),
                 sphericalMercator: true,
                 projection: epsg900913,
                 displayProjection: epsg4326,
                 controls:[
                     new OpenLayers.Control.LayerSwitcher(),
                     // new OpenLayers.Control.OverviewMap(),
                     new OpenLayers.Control.Permalink('permalink'),
                     new OpenLayers.Control.MouseToolbar(),
                     new OpenLayers.Control.MousePosition(),
                     new OpenLayers.Control.PanZoomBar(),
                     new OpenLayers.Control.Scale(),
                     new OpenLayers.Control.ScaleLine()
                 ]
                 });

             var wms = new OpenLayers.Layer.WMS(
                 "Guatemala WMS",
                 "http://imaptools.com:8080/cgi-bin/mapserv?",
                 { map: "/u/data/maps/somemapfile.map",
                   format: "image/png",
                   layers: "MapFileName"
                 },
                 {
                   sphericalMercator: true,
                   transitionEffect: 'resize',
                   singleTile: true,
                   ratio: 1.0
                 });
             wms.addOptions({isBaseLayer: true});
             wms.setVisibility(false);

             ...

On 8/24/2011 7:23 PM, jjwang wrote:
> After I set the projection of the map as epsg:900913, on client-side,
> Openlayers still tells me that the projection of this layer is  "EPSG:4326".
> map file:
> MAP
>    PROJECTION
> 	"init=epsg:900913"
>    END
>    ........
>    ........
>
>    WEB
>      TEMPLATE global.html
>      IMAGEPATH "/ms4w/tmp/ms_tmp/"
>      IMAGEURL "/ms_tmp/"
>
>      METADATA
>        "wms_title" "My Global Map WMS Server"
>        "wms_srs" "EPSG:900913"
>        "ows_enable_request"   "*"
>      END
>    END
>
>    LAYER
>      PROJECTION
>      "init=epsg:4326"
>      END
>      ......
>      ......
>    END
>
>    ......
>    ......
> END
>
> Js code:
> var propertydata_layer = new OpenLayers.Layer.WMS(
>          'Property Data',
>
> 'http://localhost:9999/cgi-bin/mapserv.exe?map=c:/ms4w/Apache/htdocs/global.map&',
>          {layers: 'nsw', transparent:true},
>          {opacity: .5}
> );
> this.map.addLayers([propertydata_layer]);
>
> Result: map.layers[5]
> div: HTMLDivElement
> events: Class
> grid: Array[3]
> id: "OpenLayers.Layer.WMS_77"
> inRange: true
> isBaseLayer: false
> map: Class
> maxExtent: Class
> maxResolution: 0.1
> maxScale: 480.6248291015625
> minResolution: 0.00000152587890625
> minScale: 31498228.8
> name: "Property Data"
> numLoadingTiles: 0
> numZoomLevels: 17
> opacity: 0.5
> options: Object
> origin: Class
> params: Object
> projection: "EPSG:4326"
> resolutions: Array[17]
> scales: Array[17]
> tileSize: Class
> units: "degrees"
> url:
> "http://localhost:9999/cgi-bin/mapserv.exe?map=c:/ms4w/Apache/htdocs/global.map&"
> __proto__: Object
>
> Is this a Mapserver issue or Openlayers?
>
> JJ
>
> --
> View this message in context: http://osgeo-org.1803224.n2.nabble.com/Map-projection-not-right-in-Openlayers-tp6722667p6722667.html
> Sent from the Mapserver - User mailing list archive at Nabble.com.
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