gwt-openlayers-users

[Gwt-openlayers-users] Using WMS

[Philipp V. <ve...@go...>]

Greetings,

I'm new in devoloping with openlayers-gwt and I tried to use a different WMS
than the one that is used in the gwt-openlayers-showcase
(http://labs.metacarta.com/wms/vmap0...).
And I also tried to change the position of Map Controls (like NavToolBar,
MousePosition, PanZoom, ...).

So far, my effort was not very effective.

My goal is to use an openstreetmap layer (if possible to display the whole
world, if not at least asia) and to have the Map Controls in some sort of
toolbar at the top.

I would be thankful for anything, especially code snippets.

Cheers,
Philipp

Re: [Gwt-openlayers-users] Using WMS

[Carsten Ø. M. <co...@na...>]

Hello

I got OSM working with:


         MapOptions mapOptions = new MapOptions();
         mapOptions.setNumZoomLevels(19);
         mapOptions.setProjection("EPSG:900913");
         mapOptions.setUnits("m");
         mapOptions.setDisplayProjection(new Projection("EPSG:4326"));
         mapOptions.setMaxExtent(new Bounds(-20037508.34, -20037508.34,
                 20037508.34, 20037508.34));
         mapOptions.setMaxResolution(156543.0399f);

         // let's create map widget and map objects
         MapWidget mapWidget = new MapWidget("350px", "350px", mapOptions);
         map = mapWidget.getMap();


         LonLat center = new LonLat(11, 55);
         center.transform("EPSG:4326", "EPSG:900913");

         TMSOptions o = new TMSOptions();
         o.getJSObject().setProperty("type", "png");
         // o.getJSObject().setProperty("displayOutsideMaxExtent", true);
         TMS osm = new TMS("Backdrop", 
"http://a.tile.openstreetmap.org/", o);
         osm.getJSObject().setProperty("getURL", createURL());


         map.addLayers(new Layer[] { osm});

         map.addControl(new LayerSwitcher());
         OverviewMapOptions overviewMapOptions = new OverviewMapOptions();
         //overviewMapOptions.setLayers(new Layer[] { wmsLayer });
         map.addControl(new OverviewMap(overviewMapOptions));
         map.addControl(new MousePosition());
         map.addControl(new Navigation());


     public static native JSObject createURL() /*-{
         return function (bounds) {
         var res = this.map.getResolution();
         var x = Math.round((bounds.left - this.maxExtent.left) / (res * 
this.tileSize.w));
         var y = Math.round((this.maxExtent.top - bounds.top) / (res * 
this.tileSize.h));
         var z = this.map.getZoom();
         var limit = Math.pow(2, z);
         if (y < 0 || y >= limit) {
         return $wnd.OpenLayers.Util.getImagesLocation() + '404.png';
         } else {
         x = ((x % limit) + limit) % limit;
         return this.url + z + '/' + x + '/' + y + '.' + this.type;
         }
         }
     }-*/;

BR
Carsten


On 12/01/2009 10:54 AM, Philipp Verhoeven wrote:
> Greetings,
>
> I'm new in devoloping with openlayers-gwt and I tried to use a 
> different WMS than the one that is used in the gwt-openlayers-showcase
> (http://labs.metacarta.com/wms/vmap0...).
> And I also tried to change the position of Map Controls (like 
> NavToolBar, MousePosition, PanZoom, ...).
>
> So far, my effort was not very effective.
>
> My goal is to use an openstreetmap layer (if possible to display the 
> whole world, if not at least asia) and to have the Map Controls in 
> some sort of toolbar at the top.
>
> I would be thankful for anything, especially code snippets.
>
> Cheers,
> Philipp
>
>
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