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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am currently stuck on trying to get wms tiles information for google v3 basemap. What I want to retrieve are,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The bounding box of the tile that is clicked on,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The offset distance in pixel between the bounding box and the pixel that has been clicked on.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Using the default kamap as base, this has been achieved using the code below but using google as base map, I seem to be getting strange values. I understand that google uses EPSG:3857 and have transform as required. Please advice the proper way of doing this.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>getTileInformationForPoint : function(point) {<o:p></o:p></p><p class=MsoNormal> var layer = this.map.baseLayer;<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> //Get the bounds of the tile that encases point<o:p></o:p></p><p class=MsoNormal> var lonLat = new OpenLayers.LonLat(point.getLongitude(), point.getLatitude());<o:p></o:p></p><p class=MsoNormal> var viewPortPixel = this.map.getViewPortPxFromLonLat(lonLat);<o:p></o:p></p><p class=MsoNormal> var tileBounds = layer.getTileBounds(viewPortPixel);<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> var tileOrigin = new OpenLayers.LonLat(tileBounds.left, tileBounds.top);<o:p></o:p></p><p class=MsoNormal> var tileOriginPixel = this.map.getViewPortPxFromLonLat(tileOrigin);<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> return Ext.create('portal.map.TileInformation', {<o:p></o:p></p><p class=MsoNormal> width : this.map.tileSize.w,<o:p></o:p></p><p class=MsoNormal> height : this.map.tileSize.h,<o:p></o:p></p><p class=MsoNormal> offset : { //Object - The point location within the tile being queried<o:p></o:p></p><p class=MsoNormal> x : Math.floor(viewPortPixel.x - tileOriginPixel.x), //Number - offset in x direction<o:p></o:p></p><p class=MsoNormal> y : Math.floor(viewPortPixel.y - tileOriginPixel.y) //Number - offset in y direction<o:p></o:p></p><p class=MsoNormal> },<o:p></o:p></p><p class=MsoNormal> tileBounds : Ext.create('portal.util.BBox', {<o:p></o:p></p><p class=MsoNormal> eastBoundLongitude : tileBounds.right,<o:p></o:p></p><p class=MsoNormal> westBoundLongitude : tileBounds.left,<o:p></o:p></p><p class=MsoNormal> northBoundLatitude : tileBounds.top,<o:p></o:p></p><p class=MsoNormal> southBoundLatitude : tileBounds.bottom<o:p></o:p></p><p class=MsoNormal> })<o:p></o:p></p><p class=MsoNormal> });<o:p></o:p></p><p class=MsoNormal> },<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>