Ok FIXED.... I can confirm myself now. Stuff lines up ok. Old mistake: epsg:900913 was ok, but the string for the source projection was wrong on the server (old dutch 28992 problem :-( )
Lining up beautifull now! Richard D Richard Duivenvoorde wrote: > Hi List, > > I'm trying to overlay a google map with data from postgis database > (roads). On larger scale things seem to be ok, but when zoomed in at > 'meters' scale, roads do not match: > http://www.duif.net/900913-mismatch.jpg > > Question: has somebody experienced this? Or does somebody have an > example of perfect matching of two layers? > > When I look at the multimap mercator example: > http://www.openlayers.org/dev/examples/multimap-mercator.html > zooming in at for example Amsterdam, The Netherlands, I see about the > same mismatch?? > > my code: > > var options = { > projection: "EPSG:900913", > units: "m", > maxResolution: 156543.0339, > maxExtent: new OpenLayers.Bounds(-20037508, -20037508, > 20037508, 20037508.34) > }; > map = new OpenLayers.Map('map', options); > var layer = new OpenLayers.Layer.Google( "Google Hybrid", {type: > G_HYBRID_MAP, 'sphericalMercator': true}); > map.addLayer(layer); > > layer = new OpenLayers.Layer.WMS( "roads", > 'http://localhost/cgi-bin/mapserv.exe?map=test.map&;', {layers: 'roads', > 'format':'image/gif', TRANSPARENT:true}, {'buffer': 0, isBaseLayer: > false, singleTile: true} ); > > Tried both reprojecting the data in postgis, using > +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 > +k=1.0 +units=m [EMAIL PROTECTED] +no_defs > OR > let mapserver reproject the data. Both give about the same shifts... > > TIA > > Richard Duivenvoorde > > _______________________________________________ > Users mailing list > [email protected] > http://openlayers.org/mailman/listinfo/users > > _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
