[OpenLayers-Dev] Issue with TMS - works for 2.7, but not 2.10
christopher.schmidt at nokia.com
christopher.schmidt at nokia.com
Wed Mar 2 01:16:21 EST 2011
On Mar 2, 2011, at 5:23 AM, ext Phil Scadden wrote:
> I've been generating tiles with MapTiler that creates a stub for
> openlayers to look at the file. Change this
> to my local Openlayers-2.10 and it stops working.
>
> The issue occurs with initGriddedTiles and the call to addTile. This is
> supposed to be implemented by subclass but not.
1. OpenLayers 2.10 (at least my copy) has an addTile method. On Layer.TMS.
Does yours not?
2. Changing the script to 2.10/OpenLayers.js seems to work exactly the same
way to me. The tile which is above new plymouth is
"TaranakiAtlas/Reservoir%20Potential-32/7/125/48.png" in both cases.
What symptom do you actually see?
If you publish your example on a webpage, it might help understand since
currently your tiles are all pink.
-- Chris
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
> <html xmlns="http://www.w3.org/1999/xhtml>"
> <head>
> <title>Reservoir Potential-32.png</title>
> <meta http-equiv='imagetoolbar' content='no'/>
> <style type="text/css"> v\:* {behavior:url(#default#VML);}
> html, body { overflow: hidden; padding: 0; height:
> 100%; width: 100%; font-family: 'Lucida
> Grande',Geneva,Arial,Verdana,sans-serif; }
> body { margin: 10px; background: #fff; }
> h1 { margin: 0; padding: 6px; border:0; font-size: 20pt; }
> #header { height: 43px; padding: 0; background-color:
> #eee; border: 1px solid #888; }
> #subheader { height: 12px; text-align: right;
> font-size: 10px; color: #555;}
> #map { height: 95%; border: 1px solid #888; }
> </style>
> <script
> src='http://maps.google.com/maps?file=api&v=2&key=INSERT_YOUR_KEY_HERE'
> type='text/javascript'></script>
> <script src="http://www.openlayers.org/api/2.7/OpenLayers.js"
> type="text/javascript"></script>
> <script type="text/javascript">
> var map;
> var mapBounds = new OpenLayers.Bounds( 171.557011392,
> -41.01960226, 175.486543045, -37.9967509295);
> var mapMinZoom = 6;
> var mapMaxZoom = 10;
>
> // avoid pink tiles
> OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3;
> OpenLayers.Util.onImageLoadErrorColor = "transparent";
>
> function init(){
> var options = {
> controls: [],
> projection: new OpenLayers.Projection("EPSG:900913"),
> displayProjection: new
> OpenLayers.Projection("EPSG:4326"),
> units: "m",
> maxResolution: 156543.0339,
> maxExtent: new OpenLayers.Bounds(-20037508,
> -20037508, 20037508, 20037508.34)
> };
> map = new OpenLayers.Map('map', options);
>
> // create Google Mercator layers
> var gmap = new OpenLayers.Layer.Google("Google Streets",
> { sphericalMercator: true, numZoomLevels: 20} );
> var gsat = new OpenLayers.Layer.Google("Google Satellite",
> {type: G_SATELLITE_MAP, sphericalMercator: true,
> numZoomLevels: 20} );
> var ghyb = new OpenLayers.Layer.Google("Google Hybrid",
> {type: G_HYBRID_MAP, sphericalMercator: true,
> numZoomLevels: 20});
> var gter = new OpenLayers.Layer.Google("Google Terrain",
> {type: G_PHYSICAL_MAP, sphericalMercator: true,
> numZoomLevels: 20 });
>
> // create OSM/OAM layer
>
> // create TMS Overlay layer
> var tmsoverlay = new OpenLayers.Layer.TMS( "TMS
> Overlay", "data/TaranakiAtlas/Reservoir Potential-32/",
> { //url: '', serviceVersion: '.', layername: '.',
> type: 'png', getURL: overlay_getTileURL, alpha:
> true,
> isBaseLayer: false
> });
> if (OpenLayers.Util.alphaHack() == false) {
> tmsoverlay.setOpacity(0.7); }
>
> map.addLayers([gmap, gsat, ghyb, gter,
> tmsoverlay]);
>
> var switcherControl = new
> OpenLayers.Control.LayerSwitcher();
> map.addControl(switcherControl);
> switcherControl.maximizeControl();
>
> map.zoomToExtent(
> mapBounds.transform(map.displayProjection, map.projection ) );
>
> map.addControl(new OpenLayers.Control.PanZoomBar());
> map.addControl(new OpenLayers.Control.MousePosition());
> map.addControl(new OpenLayers.Control.MouseDefaults());
> map.addControl(new OpenLayers.Control.KeyboardDefaults());
> }
>
>
> function overlay_getTileURL(bounds) {
> var res = this.map.getResolution();
> var x = Math.round((bounds.left - this.maxExtent.left)
> / (res * this.tileSize.w));
> var y = Math.round((bounds.bottom -
> this.tileOrigin.lat) / (res * this.tileSize.h));
> var z = this.map.getZoom();
> if (this.map.baseLayer.name == 'Virtual Earth Roads' ||
> this.map.baseLayer.name == 'Virtual Earth Aerial' ||
> this.map.baseLayer.name == 'Virtual Earth Hybrid') {
> z = z + 1;
> }
> if (mapBounds.intersectsBounds( bounds ) && z >=
> mapMinZoom && z <= mapMaxZoom ) {
> //console.log( this.url + z + "/" + x + "/" + y +
> "." + this.type);
> return this.url + z + "/" + x + "/" + y + "." +
> this.type;
> } else {
> return "images/none.png";
> }
> }
>
> </script>
> </head>
> <body onload="init()">
> <div id="header"><h1>Reservoir Potential-32.png</h1></div>
> <div id="subheader">Generated by <a
> href="http://www.maptiler.org/">MapTiler</a>/<a
> href="http://www.klokan.cz/projects/gdal2tiles/">GDAL2Tiles</a>,
> Copyright © 2008 <a href="http://www.klokan.cz/">Klokan Petr
> Pridal</a>, <a href="http://www.gdal.org/">GDAL</a> & <a
> href="http://www.osgeo.org/">OSGeo</a> <a
> href="http://code.google.com/soc/">GSoC</a>
> <!-- PLEASE, LET THIS NOTE ABOUT AUTHOR AND PROJECT SOMEWHERE ON YOUR
> WEBSITE, OR AT LEAST IN THE COMMENT IN HTML. THANK YOU -->
> </div>
> <div id="map"></div>
> <script type="text/javascript" >resize()</script>
> </body>
> </html>
>
> --
> Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St,
> Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232
>
>
> Notice: This email and any attachments are confidential. If received in error please destroy and immediately notify us. Do not copy or disclose the contents.
>
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