On Wed, Oct 22, 2008 at 9:46 AM, Christopher Schmidt <[EMAIL PROTECTED]> wrote: > On Wed, Oct 22, 2008 at 09:40:59AM -0500, Lukasz Szybalski wrote: >> Hello, >> Actually I found out that mapnik aka tile.openstreetmaps.org uses only TMS. > > OpenStreetMap uses 'flipped TMS', as described in > http://trac.openlayers.org/wiki/UsingCustomTiles
ok. so openstreetmap uses flippedTMS instead of TMS? What is the difference? > >> Trying to run the TMS: http://www.openlayers.org/dev/examples/tms.html url of : http://tile.openstreetmap.org/ image: png layer_name: .. (two dots) This displays the maps but maps are not aligned correctly, I assume this is somehow connected with flippedTMS vs TMS? > > Since OSM does not use TMS, but uses a custom getURL function, ther eis > no layer name. > >> >> var mapnik = new OpenLayers.Layer.TMS( >> 82 "OpenStreetMap (Mapnik)", >> 83 "http://tile.openstreetmap.org/";, >> 84 { >> 85 type: 'png', getURL: osm_getTileURL, >> 86 displayOutsideMaxExtent: true, >> 87 attribution: '<a >> href="http://www.openstreetmap.org/";>OpenStreetMap</a>' >> 88 } >> >> >> Was anybody able to run this url with openstreetmaps TMS service? > > Yes. It's in the examples, after all. It works....so from what you said my custom url function is (from example): function osm_getTileURL(bounds) { 146 var res = this.map.getResolution(); 147 var x = Math.round((bounds.left - this.maxExtent.left) / (res * this.tileSize.w)); 148 var y = Math.round((this.maxExtent.top - bounds.top) / (res * this.tileSize.h)); 149 var z = this.map.getZoom(); 150 var limit = Math.pow(2, z); 151 152 if (y < 0 || y >= limit) { 153 return OpenLayers.Util.getImagesLocation() + "404.png"; 154 } else { 155 x = ((x % limit) + limit) % limit; 156 return this.url + z + "/" + x + "/" + y + "." + this.type; 157 } 158 } So I guess question now is: Can I configure mapnik to use proper TMS without custom geturl function? or Can I configure openlayers to use mapnik data. (I guess the answer here is yes but only with custom geturl?) I assume TMS is some kind of standard or? Thanks, Lucas _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
