/**
* Creates a 300x300 pixel map centered on Atlanta and adds it to the page.
*
* @return the created MapWidget instance.
*/
protected MapWidget addDefaultMap() {
LatLng atlanta = LatLng.newInstance(33.7814790, -84.3880580);
MapWidget map = new MapWidget(atlanta, 8);
map.setSize("300px", "300px");
RootPanel.get().add(map);
return map;
}
@Override
public void onModuleLoad() {
final String WMS_URL = "http://labs.metacarta.com/wms/vmap0";
// example = new MapExample();
// Defining a WMSLayer and adding it to a Map
WMSParans wmsParams = new WMSParans();
wmsParams.setFormat("image/png");
wmsParams.setLayers("basic");
wmsParams.setStyles("");
WMSOptions wmsLayerParams = new WMSOptions();
wmsLayerParams.setResolutions(
new Double[] {1.40625, 0.703125, 0.3515625, 0.17578125, 0.087890625, 0.0439453125});
wmsLayerParams.setTileSize(new Size(350.0, 350.0));
wmsLayerParams.setTransitionEffect("resize");
WMS wmsLayer = new WMS("Basic WMS", WMS_URL, wmsParams, wmsLayerParams);
Map map = null;
MapOptions options = new MapOptions();
// options.setNumZoomLevels(16);
options.setProjection("EPSG:4326");
// options.setMaxResolution(156543.03390625d);
options.setNumZoomLevels(31);
options.setMaxExtent(new Bounds(-2.003750834E7, -2.003750834E7, 2.003750834E7, 2.003750834E7));
HasWMSParans parans = new WMSParans();
parans.setLayers("openstreetmap");
parans.setFormat("image/png");
// option.setOpacity(0.5);
// option.setSingleTile(true);
// WMS demolayer = new WMS("openstreetmap", "http://maps.opengeo.org/geowebcache/service/wms",
// parans);
// MapWidget mapWidget = new MapWidget(options);
MapWidget mapWidget = new MapWidget("350px", "350px", options);
// map = mapWidget.getMap();
mapWidget.getMap().addLayer(wmsLayer);
// System.out.println("OpenLayers.onModuleLoad()" + map.getCenter());
mapWidget
.getMap()
.zoomToExtent(
new Bounds(-8239915.29516, 4972384.2886, -8237267.51019, 4974997.76107), true);
// map.zoomToExtent(new Bounds(-8239915.29516,4972384.2886,-8237267.51019,
// 4974997.76107),false);
// mapWidget.getMap().zoomToExtent(new Bounds(-6036855.985719225, -2586128.294983334,
// -3712505.0179556734, -332996.453897879), false);
RootPanel.get().add(mapWidget);
}
/**
* Initialize the LayerTree, using a MapWidget as base reference. It will display the map's
* layers, as configured in the XML configuration, and select/deselect the layer as the user
* clicks on them in the tree.
*
* @param mapWidget map widget this layer tree is connected to
* @since 1.6.0
*/
@Api
public LayerTree(final MapWidget mapWidget) {
super();
setHeight100();
this.mapModel = mapWidget.getMapModel();
htmlSelectedLayer.setWidth100();
// Wait for the MapModel to be loaded
mapModel.addMapModelChangedHandler(
new MapModelChangedHandler() {
public void onMapModelChanged(MapModelChangedEvent event) {
if (!initialized) {
buildTree(mapModel);
toolStrip = buildToolstrip(mapWidget);
// display the toolbar and the tree
VLayout vLayout = new VLayout();
vLayout.setSize("100%", "100%");
vLayout.addMember(toolStrip);
htmlSelectedLayer.setBackgroundColor(WidgetLayout.layerTreeBackground);
htmlSelectedLayer.setAlign(Alignment.CENTER);
vLayout.addMember(htmlSelectedLayer);
vLayout.addMember(treeGrid);
LayerTree.this.addChild(vLayout);
}
initialized = true;
treeGrid.markForRedraw();
LayerTree.this.markForRedraw();
}
});
mapModel.addLayerSelectionHandler(this);
}