[OpenLayers-Users] Small shift between google and wms

[Simo D]

I'm using a trunk version of the 2.8 checked out about three days ago.
Shall I checkout a newer version?


Christopher Schmidt-2 wrote:
> 
> On Fri, May 22, 2009 at 07:57:02AM -0700, Simo D wrote:
>> 
>> Hi, I created an application which retireves a WMS layer from geoserver
>> (chached in epsg:900913), the layers from google and a layer from virtual
>> earth plus some georss(GML+GeoRSS format). The issue is that when I
>> switch
>> from wms to google, there is a small shift of the map, so the georss are
>> displayed in a wrong place. This shift disappears when zooming and is not
>> present with virtual earth.
> 
> Are you using OL 2.8? A fix was checked into RC2 to fix this, I believe. 
> 
>> All the layers have the sphericalMercator set to true. Here follows a
>> piece
>> of my code:
>> var options = {
>> 		projection: new OpenLayers.Projection("EPSG:900913"),
>> 		displayProjection: new OpenLayers.Projection("EPSG:900913"),
>> 		units: "m",
>> 		maxResolution: 156543.0339/4,
>> 		maxExtent: new OpenLayers.Bounds(-20037508.34,
>> -20037508.34,20037508.34,
>> 20037508.34),
>> 		restrictedExtent:  new OpenLayers.Bounds(-20037508.34,
>> -20037508.34,20037508.34, 20037508.34),
>> 		numZoomLevels: 10,
>> 		zoom: 1, 
>> 		controls: []
>> 		};
>> var world = new
>> OpenLayers.Layer.WMS("WFP-SDI",geoweb,{layers:'ithaca_world',"sphericalMercator":
>> true,format: 'image/png'});
>> 	var gmap = new OpenLayers.Layer.Google("Google
>> Streets",{'sphericalMercator': true,minZoomLevel: 2});
>> 	var gphy = new OpenLayers.Layer.Google("Google Physical",{type:
>> G_PHYSICAL_MAP,"sphericalMercator": true,minZoomLevel: 2});
>> 	var gsat = new OpenLayers.Layer.Google("Google Satellite",{type:
>> G_SATELLITE_MAP, 'sphericalMercator': true,minZoomLevel: 2});
>> 	var vaer = new OpenLayers.Layer.VirtualEarth( "VE",{ minZoomLevel: 2,
>> maxZoomLevel: 12, 'type': VEMapStyle.Aerial,'sphericalMercator': true});
>> 
>> 
>> Have you got any advice?
>> Thanks a lot.
>> 
>> Simone
>> -- 
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>> 
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> 
> -- 
> Christopher Schmidt
> MetaCarta
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