Thanks Alexei. I presume this was for earlier ArcGIS caches? At v9.3.1, the zoom, row and column numbers don't have L/R/C prefixes, are all in base 10, and are not zero-padded. I modified the code to make these changes, and tried it out. I get the tiles, but as before (with Layer.XYZ) they are still offset in the north-south direction, which changes with zoom level. Robert
>>> Alexei Peters <apet...@fargeo.com> 3/06/2010 6:31 a.m. >>> I've used this patch submited by tschaub with good success: http://trac.openlayers.org/browser/sandbox/tschaub/arcgiscache/lib/OpenLayers/Layer/ArcGISCache.js?rev=9918 ( http://trac.openlayers.org/browser/sandbox/tschaub/arcgiscache/lib/OpenLayers/Layer/ArcGISCache.js?rev=9918 )Cheers, Alexei On Tue, Jun 1, 2010 at 5:33 PM, Robert Sanson <sans...@asurequality.com> wrote: Tiles I request from an ArcGIS Server tile cache using Layer.XYZ are not lining up with other layers requested from the same server via Layer.WMS or Layer.ArcGIS93Rest. Here is my code snippet: var mapoptions = { //tileOrigin: new OpenLayers.LonLat(-4020900,19998100), //Origin as reported by ArcGIS maxExtent: new OpenLayers.Bounds(-4020900, 4674128.11975, 2568710.79993, 19998100), //contains the AGS origin restrictedExtent: new OpenLayers.Bounds(1018697.71047, 4674128.11975, 2568710.79993, 6296981.53325), resolutions: new Array(3175.0063500127, 793.751587503175, 264.583862501058, 198.437896875794, 132.291931250529, 66.1459656252646, 26.4583862501058, 19.8437896875794, 13.2291931250529, 9.26043518753704, 6.61459656252646, 5.29167725002117, 3.96875793751588, 2.64583862501058, 1.98437896875794, 1.32291931250529), tileSize: new OpenLayers.Size(256,256), units: 'm', projection: new OpenLayers.Projection('EPSG:2193'), fractionalZoom: false }; var map = new OpenLayers.Map( 'map',mapoptions ); var nzcoastwms = new OpenLayers.Layer.WMS( "Coastline", "http://ws-esrimt/arcgis/services/mapservice_asurequality_prod/MapServer/WMSServer";, {layers: ['0'], format: "image/png"}, {isBaseLayer: true, singleTile:true, visibility: true, attribution:"LINZ data Crown copyright reserved"} ); var topoxyz = new OpenLayers.Layer.XYZ( "Topo", "http://ws-esrimt/ArcGIS/rest/services/mapservice_topography_vector_prod/MapServer/tile/${z}/${y}/${x ( http://ws-esrimt/ArcGIS/rest/services/mapservice_topography_vector_prod/MapServer/tile/$%7Bz%7D/$%7By%7D/$%7Bx )}", {isBaseLayer: false, sphericalMercator: false//, tileOrigin: new OpenLayers.LonLat(-4020900,19998100) }); map.addLayers([nzcoastwms,topoxyz]); Doing this above, requests the correct tiles, but it seems the requested tiles are displaced in a north-south direction, depending on Zoom level. I have previously verified the WMS layer is in the correct location. All the data and the map are in NZ Transverse Mercator (EPSG:2193), so there is no projection. Here are some numbers to show the problem based on relative locations of the same features on the map: Layer zoom res pixel.x pixel.y x y relative px relative y (m) displacement WMS 0 3175.00635 328 207 2022304.713 5641130.138 XYZ 0 3175.00635 328 168 2022304.713 5764955.385 -39 123825.25 North WMS 1 793.7515875 219 265 1764335.447 5478411.062 XYZ 1 793.7515875 219 370 1764335.447 5395067.146 105 -83343.92 South WMS 2 264.5838625 148 284 1765129.198 5478146.478 XYZ 2 264.5838625 148 344 1765129.198 5462271.447 60 -15875.03 South WMS 3 198.4378969 97 289 1762152.63 5479006.376 XYZ 3 198.4378969 97 199 1762152.63 5496865.787 -90 17859.41 North WMS 4 132.2919313 155 235 1762218.776 5479204.814 XYZ 4 132.2919313 155 358 1762218.776 5462932.906 123 -16271.91 South WMS 5 66.14596563 121 273 1757522.412 5473317.823 XYZ 5 66.14596563 121 262 1757522.412 5473979.283 -11 661.46 North WMS 6 26.45838625 103 307 1757509.183 5473317.823 XYZ 6 26.45838625 103 408 1757509.183 5470645.526 101 -2672.30 South Is this a bug? Thanks, Robert Sanson This message has been scanned for malware by SurfControl plc. www.surfcontrol.com ( http://www.surfcontrol.com/ ) _______________________________________________ Dev mailing list Dev@openlayers.org http://openlayers.org/mailman/listinfo/dev Click here ( https://www.mailcontrol.com/sr/S+7wVy5vMBDTndxI!oX7Unm7KfMvab2YZ2lg15i6iZcSosNgl5KmYDvLqYhnxVDlf1gBtNEgbXmDKU0CWBSjaQ== ) to report this email as spam.
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