[OpenLayers-Users] Having Google map api and arcGIS server. Any better ideas?

[Phil Scadden]

ArcGIS Server doesnt like EPSG:900913 and maps doesnt like EPSG:3857.  
Its a pain.

I got around this with a couple of overrides. Has anyone found a better way?

Ext.override(OpenLayers.Layer.WMS, {
     getFullRequestString:function(newParams, altUrl) {
         var projectionCode = this.map.getProjection();
         if((projectionCode == 'EPSG:900913') && 
this.url.search(/arcgis/)>=0) {
             this.params.SRS = 'EPSG:3857';
         } else {
             this.params.SRS = (projectionCode == "none") ? null 
:projectionCode;
         }
         return OpenLayers.Layer.Grid.prototype.getFullRequestString.apply(
                                                    this, arguments);
     }
});

Ext.override(OpenLayers.Request, {
     GET:function(config) {
         if((config.params.SRS == 'EPSG:900913') && 
config.url.search(/arcgis/)>=0) {
             config.params.SRS = 'EPSG:3857';
         }
         config = OpenLayers.Util.extend(config, {method: "GET"});
         return OpenLayers.Request.issue(config);
     }
});

And for WFS protocol, create with:
     var srs = (currProj=='EPSG:900913' && 
source.serverUrl.search(/arcgis/)>=0) ? 'EPSG:3857' : currProj;
     if(spatialQueryNode.type=='wfs') {
             source.wfsProtocol = new OpenLayers.Protocol.WFS.v1_1_0({
                 url: spatialQueryNode.url,
                 featurePrefix: spatialQueryNode.featurePrefix,
                 featureType: spatialQueryNode.featureType,
                 geometryName :geomName,
                 srsName: srs
             });

-- 
Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St, 
Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232

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