Thanks a lot Kris,<br><br>I have finally find the solution. This is my getURL function :<br><br> getURL: function(bounds) {<br> <br> var res = this.map.getResolution();<br> var bbox = this.maxExtent;<br>
var size = this.tileSize;<br> var tileX = Math.round((bounds.left - bbox.left) / (res * size.w));<br> var tileY = Math.round((bounds.bottom - bbox.bottom) / (res * size.h));<br> var z = this.map.getZoom();<br>
/**<br> * Zero-pad a positive integer.<br> * number - {Int} <br> * length - {Int} <br> *<br> * Returns:<br> * {String} A zero-padded string<br> */<br> function zeroPad(number, length) {<br>
number = String(number);<br> var zeros = [];<br> for(var i=0; i<length; ++i) {<br> zeros.push('0');<br> }<br> return zeros.join('').substring(0, length - number.length) + number;<br>
}<br> tileY = Math.ceil(this.zoomImages[z][1]/size.h) - tileY -1;<br> var pos= parseInt(tileY) * Math.ceil(this.zoomImages[z][0]/size.w) + parseInt(tileX);<br> <br> var components = [this.layername];<br>
var path = components.join('/'); <br> var url = this.url;<br> if (url instanceof Array) {<br> url = this.selectUrl(path, url);<br> }<br> url = (url.charAt(url.length - 1) == '/') ? url : url + '/';<br>
<br> return url + path+"/"+this.layername+"_"+(z)+"_"+zeroPad(pos,4) + '.' + this.extension;<br> },<br><br>It's work for tiles like layerName_NbZoom_nbTile.extension.<br>
Tile are like:<br><br>1 2 3 4<br>5 6 7 8<br><br>Hope this help someone else.<br><br>Cheers <br><br>Jim<br><br>