@Override
public void buildPanel() {
// create some MapOptions
MapOptions defaultMapOptions = new MapOptions();
defaultMapOptions.setNumZoomLevels(16);
// create a MapWidget
MapWidget mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
contentPanel.add(new HTML("<p>This example shows the use of the click handler.</p>"));
contentPanel.add(
new InfoPanel(
"<p>Don't forget to add the following line to your HTML if you want to use Google V3. :</p>"
+ "<p><b><script src=\"http://maps.google.com/maps/api/js?v=3&sensor=false\"></script></b></p>"));
HorizontalPanel horizontalPanel = new HorizontalPanel();
horizontalPanel.setSize("800px", "500px");
outputPanel.setSize("300px", "475px");
horizontalPanel.add(mapWidget);
VerticalPanel eventConsole = new VerticalPanel();
listBox.setSize("300px", "25px");
eventConsole.add(listBox);
eventConsole.add(this.outputPanel);
horizontalPanel.add(eventConsole);
contentPanel.add(horizontalPanel);
// create some Google Layers
GoogleV3Options gNormalOptions = new GoogleV3Options();
gNormalOptions.setIsBaseLayer(true);
gNormalOptions.setType(GoogleV3MapType.G_NORMAL_MAP);
GoogleV3 gNormal = new GoogleV3("Google Normal", gNormalOptions);
// and add them to the map
final Map map = mapWidget.getMap();
map.addLayer(gNormal);
// lets add some default controls to the map
map.addControl(
new LayerSwitcher()); // + sign in the upperright corner to display the layer switcher
map.addControl(new OverviewMap()); // + sign in the lowerright to display the overviewmap
map.addControl(new ScaleLine()); // Display the scaleline
final String singleKey = "single";
ClickControl singleClickControl =
new ClickControl(this.createClickHandlerOptions(true, false, false, false, 0, singleKey));
map.addControl(singleClickControl);
this.clickControls.put(singleKey, singleClickControl);
listBox.addItem("single only", singleKey);
final String doubleKey = "double";
ClickControl doubleClickControl =
new ClickControl(this.createClickHandlerOptions(false, true, false, false, 0, doubleKey));
map.addControl(doubleClickControl);
this.clickControls.put(doubleKey, doubleClickControl);
this.listBox.addItem("double only", doubleKey);
final String bothKey = "both";
ClickControl bothClickControl =
new ClickControl(this.createClickHandlerOptions(true, true, false, false, 0, bothKey));
map.addControl(bothClickControl);
this.clickControls.put(bothKey, bothClickControl);
this.listBox.addItem("both", bothKey);
final int tolerance = 200;
final String dragKey = "drag";
ClickControl dragClickControl =
new ClickControl(
this.createClickHandlerOptions(true, false, false, false, tolerance, dragKey));
map.addControl(dragClickControl);
this.clickControls.put(dragKey, dragClickControl);
this.listBox.addItem("drag ( tolerance: " + tolerance + " )", dragKey);
final String singleStopKey = "singlestop";
ClickControl singleStopClickControl =
new ClickControl(
this.createClickHandlerOptions(true, false, true, false, 0, singleStopKey));
map.addControl(singleStopClickControl);
this.clickControls.put(singleStopKey, singleStopClickControl);
listBox.addItem("single with stop", singleStopKey);
final String doubleStopKey = "doublestop";
ClickControl doubleStopClickControl =
new ClickControl(
this.createClickHandlerOptions(false, true, false, true, 0, doubleStopKey));
map.addControl(doubleStopClickControl);
this.clickControls.put(doubleStopKey, doubleStopClickControl);
this.listBox.addItem("double with stop", doubleStopKey);
final String bothStopKey = "bothstop";
ClickControl bothStopClickControl =
new ClickControl(this.createClickHandlerOptions(true, true, true, true, 0, bothStopKey));
map.addControl(bothStopClickControl);
this.clickControls.put(bothStopKey, bothStopClickControl);
this.listBox.addItem("both with stop", bothStopKey);
// center and zoom to a location
LonLat lonLat = new LonLat(13.4, 52.51);
lonLat.transform(
DEFAULT_PROJECTION.getProjectionCode(),
map.getProjection()); // transform lonlat to OSM coordinate system
map.setCenter(lonLat, 12);
initWidget(contentPanel);
mapWidget
.getElement()
.getFirstChildElement()
.getStyle()
.setZIndex(0); // force the map to fall behind popups
this.listBox.addChangeHandler(
new ChangeHandler() {
@Override
public void onChange(ChangeEvent event) {
activateControl();
}
});
this.activateControl();
}
@Override
public void buildPanel() {
OpenLayers.setProxyHost("olproxy?targetURL=");
// create some MapOptions
MapOptions defaultMapOptions = new MapOptions();
defaultMapOptions.setDisplayProjection(
new Projection(
"EPSG:4326")); // causes the mouse popup to display coordinates in this format
defaultMapOptions.setNumZoomLevels(16);
// Create a MapWidget
MapWidget mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
// Create a WMS layer as base layer
WMSParams wmsParams = new WMSParams();
wmsParams.setFormat("image/png");
wmsParams.setLayers("basic");
wmsParams.setStyles("");
WMSOptions wmsLayerParams = new WMSOptions();
wmsLayerParams.setUntiled();
wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
String wmsUrl = "http://labs.metacarta.com/wms/vmap0";
WMS wmsLayer = new WMS("Basic WMS", wmsUrl, wmsParams, wmsLayerParams);
// Add the WMS to the map
Map map = mapWidget.getMap();
map.addLayer(wmsLayer);
// Adds the graticule control
LineSymbolizerOptions lineOptions = new LineSymbolizerOptions();
lineOptions.setStrokeColor("#ccccff");
lineOptions.setStrokeOpacity(0.5);
lineOptions.setStrokeWidth(1);
LineSymbolizer line = new LineSymbolizer(lineOptions);
TextSymbolizerOptions textOptions = new TextSymbolizerOptions();
textOptions.setFontSize("9px");
TextSymbolizer text = new TextSymbolizer(textOptions);
final GraticuleOptions grtOptions = new GraticuleOptions();
grtOptions.setTargetSize(200);
grtOptions.setLabelled(true);
grtOptions.setLineSymbolyzer(line);
grtOptions.setLabelSymbolizer(text);
Graticule graticule = new Graticule(grtOptions);
graticule.setAutoActivate(true);
map.addControl(graticule);
// Lets add some default controls to the map
map.addControl(
new LayerSwitcher()); // + sign in the upperright corner to display the layer switcher
map.addControl(new OverviewMap()); // + sign in the lowerright to display the overviewmap
map.addControl(new ScaleLine()); // Display the scaleline
// Center and zoom to a location
map.setCenter(new LonLat(146.7, -41.8), 6);
contentPanel.add(
new HTML("<p>This example shows how to add a custom mouse position to the map..</p>"));
contentPanel.add(mapWidget);
initWidget(contentPanel);
mapWidget
.getElement()
.getFirstChildElement()
.getStyle()
.setZIndex(0); // force the map to fall behind popups
}
@Override
public void buildPanel() {
OpenLayers.setProxyHost("olproxy?targetURL=");
// create some MapOptions
MapOptions defaultMapOptions = new MapOptions();
defaultMapOptions.setDisplayProjection(
new Projection(
"EPSG:4326")); // causes the mouse popup to display coordinates in this format
defaultMapOptions.setNumZoomLevels(16);
// Create a MapWidget
MapWidget mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
// Create a WMS layer as base layer
WMSParams wmsParams = new WMSParams();
wmsParams.setFormat("image/png");
wmsParams.setLayers("basic");
wmsParams.setStyles("");
WMSOptions wmsLayerParams = new WMSOptions();
wmsLayerParams.setUntiled();
wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
String wmsUrl = "http://labs.metacarta.com/wms/vmap0";
WMS wmsLayer = new WMS("Basic WMS", wmsUrl, wmsParams, wmsLayerParams);
// Add the WMS to the map
Map map = mapWidget.getMap();
map.addLayer(wmsLayer);
// Adds the custom mouse position to the map
MousePositionOutput mpOut =
new MousePositionOutput() {
@Override
public String format(LonLat lonLat, Map map) {
String out = "";
out += "<b>This is the longitude </b> ";
out += lonLat.lon();
out += "<b>, and this the latitude</b> ";
out += lonLat.lat();
return out;
}
};
MousePositionOptions mpOptions = new MousePositionOptions();
mpOptions.setFormatOutput(mpOut); // rename to setFormatOutput
map.addControl(new MousePosition(mpOptions));
// Lets add some default controls to the map
map.addControl(
new LayerSwitcher()); // + sign in the upperright corner to display the layer switcher
map.addControl(new OverviewMap()); // + sign in the lowerright to display the overviewmap
map.addControl(new ScaleLine()); // Display the scaleline
// Center and zoom to a location
map.setCenter(new LonLat(146.7, -41.8), 6);
contentPanel.add(
new HTML("<p>This example shows how to add a custom mouse position to the map..</p>"));
contentPanel.add(mapWidget);
initWidget(contentPanel);
mapWidget
.getElement()
.getFirstChildElement()
.getStyle()
.setZIndex(0); // force the map to fall behind popups
}
@Override
public void buildPanel() {
OpenLayers.setProxyHost("olproxy?targetURL=");
// create some MapOptions
MapOptions defaultMapOptions = new MapOptions();
defaultMapOptions.setNumZoomLevels(16);
// Create a MapWidget
MapWidget mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
// Create a WMS layer as base layer
WMSParams wmsParams = new WMSParams();
wmsParams.setFormat("image/png");
wmsParams.setLayers("basic");
wmsParams.setStyles("");
WMSOptions wmsLayerParams = new WMSOptions();
wmsLayerParams.setUntiled();
wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
String wmsUrl = "http://vmap0.tiles.osgeo.org/wms/vmap0";
WMS wmsLayer = new WMS("Basic WMS", wmsUrl, wmsParams, wmsLayerParams);
Map map = mapWidget.getMap();
// Add some control to the map
LayerSwitcher layerSwitcher = new LayerSwitcher();
map.addControl(layerSwitcher); // Display the LayerSwitcher
map.addControl(new ScaleLine()); // Display the scaleline
// Add the WMS to the map
map.addLayer(wmsLayer);
// Add some vectors
final Point point = new Point(-110, 45);
final Vector vectorLayer = new Vector("Features to Transform");
// Style for the vector
final Style featureStyle = new Style();
featureStyle.setFillColor("#eeeeff");
featureStyle.setStrokeColor("#3300ff");
featureStyle.setStrokeWidth(2);
featureStyle.setPointRadius(3);
// Style for the rotation Handle
final Style rotationHandlerStyle = new Style();
rotationHandlerStyle.setFillColor("#eeeeee");
rotationHandlerStyle.setFillOpacity(1);
rotationHandlerStyle.setPointRadius(12);
// create a polygon feature from a linear ring of points
Point[] pointList = new Point[6];
for (int p = 0; p < 6; p++) {
double a = p * (2 * Math.PI) / 7;
double r = Math.random() + 1;
Point newPoint =
new Point(point.getX() + (r * Math.cos(a)), point.getY() + (r * Math.sin(a)));
pointList[p] = newPoint;
}
LinearRing linearRing = new LinearRing(pointList);
final Polygon polygon = new Polygon(new LinearRing[] {linearRing});
final VectorFeature polygonFeature =
new VectorFeature(polygon, featureStyle); // create a VectorFeature from the polygon
vectorLayer.addFeature(polygonFeature);
// Create Options For the Transform Control
TransformFeatureOptions transformFeatureOptions = new TransformFeatureOptions();
transformFeatureOptions.setRotate(true);
transformFeatureOptions.setRotation(0);
transformFeatureOptions.setRederIntent("transform");
transformFeatureOptions.setRotationHandleSymbolizer(rotationHandlerStyle);
// Create The Transform Control
TransformFeature transformFeature = new TransformFeature(vectorLayer, transformFeatureOptions);
map.setCenter(new LonLat(point.getX(), point.getY()), 7);
map.addLayer(vectorLayer);
// Add and activate the control
map.addControl(transformFeature);
transformFeature.activate();
contentPanel.add(new HTML("<p>This example shows the transformation of a Feature.</p>"));
contentPanel.add(mapWidget);
initWidget(contentPanel);
mapWidget
.getElement()
.getFirstChildElement()
.getStyle()
.setZIndex(0); // force the map to fall behind popups
}
/** initialize map widget using gwt-openlayers */
void initMapGwtOl() {
MapOptions defaultMapOptions = new MapOptions();
defaultMapOptions.setNumZoomLevels(16); //
// defaultMapOptions.setProjection("EPSG:4326");
defaultMapOptions.setMaxExtent(new Bounds(-180, -90, 180, 90));
defaultMapOptions.setRestrictedExtent(new Bounds(-180, -90, 180, 90));
defaultMapOptions.setUnits("degrees");
mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
/*GoogleV3Options gNormalOptions = new GoogleV3Options();
gNormalOptions.setIsBaseLayer(true);
gNormalOptions.setType(GoogleV3MapType.G_NORMAL_MAP);
GoogleV3 gNormal = new GoogleV3("Google Normal", gNormalOptions);*/
// Create a WMS layer as base layer
WMSParams wmsParams = new WMSParams();
wmsParams.setFormat("image/png");
wmsParams.setLayers("basic");
wmsParams.setStyles("");
WMSOptions wmsLayerParams = new WMSOptions();
wmsLayerParams.setUntiled();
wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
String wmsUrl = EUOSMEGWT.wmsEndpoint;
WMS wmsLayer = new WMS("Basic WMS", wmsUrl, wmsParams, wmsLayerParams);
// Add the WMS to the map
final Map map = mapWidget.getMap();
// map.addLayer(gNormal);
map.addLayer(wmsLayer);
/*OSM osm_1 = OSM.Mapnik("Mapnik");
OSM osm_2 = OSM.CycleMap("CycleMap");
osm_1.setIsBaseLayer(true);
osm_2.setIsBaseLayer(true);
map.addLayer(osm_1);
map.addLayer(osm_2);*/
// Lets add some default controls to the map
map.addControl(
new LayerSwitcher()); // + sign in the upperright corner to display the layer switcher
map.addControl(new ScaleLine()); // Display the scaleline
map.addControl(new MousePosition());
// Center and zoom to a location
LonLat lonLat = new LonLat(6.95, 50.94);
lonLat.transform(
DEFAULT_PROJECTION.getProjectionCode(),
map.getProjection()); // transform lonlat to OSM coordinate system
map.setCenter(lonLat, 3);
/*map.addMapClickListener(new MapClickListener() {
public void onClick(MapClickListener.MapClickEvent mapClickEvent) {
LonLat lonLat = mapClickEvent.getLonLat();
lonLat.transform(map.getProjection(), DEFAULT_PROJECTION.getProjectionCode()); //transform lonlat to more readable format
Window.alert("LonLat = (" + lonLat.lon() + " ; " + lonLat.lat() + ")");
}
});*/
FeatureAddedListener listener =
new FeatureAddedListener() {
public void onFeatureAdded(VectorFeature vf) {
Polygon aoi = Polygon.narrowToPolygon(vf.getGeometry().getJSObject());
LinearRing[] rings = aoi.getComponents();
if (rings != null) {
rings[0].getComponents();
}
Geometry geo = vf.getGeometry();
// Window.alert("Feature of class " + geo.getClassName() + " added with bounds " +
// geo.getBounds().toString());
double north = Math.floor(geo.getBounds().getUpperRightY() * 100000) / 100000;
double east = Math.floor(geo.getBounds().getUpperRightX() * 100000) / 100000;
double south = Math.floor(geo.getBounds().getLowerLeftY() * 100000) / 100000;
double west = Math.floor(geo.getBounds().getLowerLeftX() * 100000) / 100000;
geoBoundsObj.newTextBoxNorth.setValue("" + north);
geoBoundsObj.newTextBoxEast.setValue("" + east);
geoBoundsObj.newTextBoxSouth.setValue("" + south);
geoBoundsObj.newTextBoxWest.setValue("" + west);
map.zoomToExtent(geo.getBounds());
}
};
Vector boxLayer = new Vector("Box Layer");
DrawFeatureOptions drawRegularPolygonFeatureOptions = new DrawFeatureOptions();
drawRegularPolygonFeatureOptions.onFeatureAdded(listener);
RegularPolygonHandlerOptions regularPolygonHandlerOptions = new RegularPolygonHandlerOptions();
regularPolygonHandlerOptions.setSides(4);
regularPolygonHandlerOptions.setIrregular(true);
regularPolygonHandlerOptions.setPersist(true);
drawRegularPolygonFeatureOptions.setHandlerOptions(regularPolygonHandlerOptions);
final DrawFeature drawRegularPolygon =
new DrawFeature(boxLayer, new RegularPolygonHandler(), drawRegularPolygonFeatureOptions);
map.addControl(drawRegularPolygon);
drawRegularPolygon.activate();
}
@Override
public void buildPanel() {
OpenLayers.setProxyHost("olproxy?targetURL=");
// create some MapOptions
MapOptions defaultMapOptions = new MapOptions();
defaultMapOptions.setNumZoomLevels(16);
// Create a MapWidget
MapWidget mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
// Create a WMS layer as base layer
WMSParams wmsParams = new WMSParams();
wmsParams.setFormat("image/png");
wmsParams.setLayers("basic");
wmsParams.setStyles("");
WMSOptions wmsLayerParams = new WMSOptions();
wmsLayerParams.setUntiled();
wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
String wmsUrl = "http://vmap0.tiles.osgeo.org/wms/vmap0";
WMS wmsLayer = new WMS("Basic WMS", wmsUrl, wmsParams, wmsLayerParams);
// Add the WMS to the map
Map map = mapWidget.getMap();
map.addLayer(wmsLayer);
// Add some vectors
final Vector vectorLayer = new Vector("Simple Geometry");
map.addLayer(vectorLayer);
// create a point feature
final Point point =
new Point(-110, 45); // we need a Point object because this has the rotate method
Style pointStyle = new Style();
pointStyle.setFillColor("blue");
pointStyle.setStrokeColor("blue");
pointStyle.setStrokeWidth(3);
pointStyle.setPointRadius(6);
pointStyle.setFillOpacity(0.6);
final VectorFeature pointFeature =
new VectorFeature(point, pointStyle); // create a VectorFeature from the rotatable Polygon
vectorLayer.addFeature(pointFeature);
// create a line feature
Point[] linePoints = {new Point(-120, 40), new Point(-115, 45), new Point(-110, 40)};
final LineString lineString =
new LineString(
linePoints); // we need a LineString object because this has the rotate method
final Style lineStyle = new Style();
lineStyle.setStrokeColor("#339933");
lineStyle.setStrokeWidth(3);
lineStyle.setPointRadius(6);
final VectorFeature lineFeature =
new VectorFeature(
lineString, lineStyle); // create a VectorFeature from the rotatable LineString
vectorLayer.addFeature(lineFeature);
// create a polygon feature from a linear ring of points
Point[] pointList = new Point[6];
for (int p = 0; p < 6; p++) {
double a = p * (2 * Math.PI) / 7;
double r = Math.random() + 1;
Point newPoint =
new Point(point.getX() + (r * Math.cos(a)), point.getY() + (r * Math.sin(a)));
pointList[p] = newPoint;
}
LinearRing linearRing = new LinearRing(pointList);
final Polygon polygon =
new Polygon(
new LinearRing[] {
linearRing
}); // we need a Polygon object because this has the rotate method
final VectorFeature polygonFeature =
new VectorFeature(polygon, lineStyle); // create a VectorFeature from the rotatable Polygon
vectorLayer.addFeature(polygonFeature);
// Lets add some default controls to the map
map.addControl(
new LayerSwitcher()); // + sign in the upperright corner to display the layer switcher
map.addControl(new OverviewMap()); // + sign in the lowerright to display the overviewmap
map.addControl(new ScaleLine()); // Display the scaleline
// Center and zoom to a location
map.setCenter(new LonLat(point.getX(), point.getY()), 5);
// start the actual rotating
final Point origin = new Point(-111.04, 45.68);
final Timer t =
new Timer() // we just use a GWT timer to have animation, no need for special OpenLayer
// timer stuff...
{
@Override
public void run() {
polygon.rotate(-360 / 20, origin);
vectorLayer.drawFeature(polygonFeature, lineStyle);
lineString.rotate(360 / 40, origin);
vectorLayer.drawFeature(lineFeature, lineStyle);
point.rotate(360 / 20, origin);
vectorLayer.drawFeature(pointFeature, lineStyle);
}
};
t.scheduleRepeating(100);
contentPanel.add(
new HTML(
"<p>This example shows a few features rotating. There is not yet a control built that provides a tool for rotating, but the geometry.rotate method can be accessed to rotate programmatically.</p>"));
contentPanel.add(mapWidget);
initWidget(contentPanel);
mapWidget
.getElement()
.getFirstChildElement()
.getStyle()
.setZIndex(0); // force the map to fall behind popups
}
@Override
public void buildPanel() {
// create some MapOptions
MapOptions defaultMapOptions = new MapOptions();
defaultMapOptions.setNumZoomLevels(16);
// create a MapWidget
MapWidget mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
contentPanel.add(new HTML(
"<p>This example shows the use of the handler with a key mask.</p>"
+ "<p>"
+ "<li>Choose the keys you want to check with the checkboxes.</li>"
+ "<li>Press an hold the buttons you have choosen and click in the map.</li>"));
contentPanel.add(
new InfoPanel(
"<p>Don't forget to add the following line to your HTML if you want to use Google V3. :</p>"
+ "<p><b><script src=\"http://maps.google.com/maps/api/js?v=3&sensor=false\"></script></b></p>"));
HorizontalPanel keyChooserPanel = new HorizontalPanel();
this.keyAltCheckBox = new CheckBox("Alt");
this.keyShiftCheckBox = new CheckBox("Shift");
keyChooserPanel.add(this.keyAltCheckBox);
keyChooserPanel.add(this.keyShiftCheckBox);
ValueChangeHandler<Boolean> changeHandler = new ValueChangeHandler<Boolean>() {
@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
int keyCodes = Handler.MOD_NONE;
if(keyAltCheckBox.getValue()) {
keyCodes |= Handler.MOD_ALT;
}
if(keyShiftCheckBox.getValue()) {
keyCodes |= Handler.MOD_SHIFT;
}
keyMaskControl.setKeyMask(keyCodes);
}
};
this.keyShiftCheckBox.addValueChangeHandler(changeHandler);
this.keyAltCheckBox.addValueChangeHandler(changeHandler);
this.keyShiftCheckBox.addValueChangeHandler(changeHandler);
contentPanel.add(mapWidget);
contentPanel.add(keyChooserPanel);
// create some Google Layers
GoogleV3Options gNormalOptions = new GoogleV3Options();
gNormalOptions.setIsBaseLayer(true);
gNormalOptions.setType(GoogleV3MapType.G_NORMAL_MAP);
GoogleV3 gNormal = new GoogleV3("Google Normal", gNormalOptions);
// and add them to the map
final Map map = mapWidget.getMap();
map.addLayer(gNormal);
// lets add some default controls to the map
map.addControl(new LayerSwitcher()); //+ sign in the upperright corner to display the layer switcher
map.addControl(new OverviewMap()); //+ sign in the lowerright to display the overviewmap
map.addControl(new ScaleLine()); //Display the scaleline
map.addControl(keyMaskControl);
keyMaskControl.activate();
// center and zoom to a location
LonLat lonLat = new LonLat(13.4, 52.51);
lonLat.transform(DEFAULT_PROJECTION.getProjectionCode(),
map.getProjection()); //transform lonlat to OSM coordinate system
map.setCenter(lonLat, 12);
initWidget(contentPanel);
mapWidget.getElement().getFirstChildElement().getStyle().setZIndex(0); //force the map to fall behind popups
}
@Override
public void buildPanel() {
OpenLayers.setProxyHost("olproxy?targetURL=");
// create some MapOptions
MapOptions defaultMapOptions = new MapOptions();
defaultMapOptions.setDisplayProjection(
new Projection(
"EPSG:4326")); // causes the mouse popup to display coordinates in this format
defaultMapOptions.setNumZoomLevels(16);
// Create a MapWidget
MapWidget mapWidget = new MapWidget("500px", "500px", defaultMapOptions);
// Create a WMS layer as base layer
WMSParams wmsParams = new WMSParams();
wmsParams.setFormat("image/png");
wmsParams.setLayers("basic");
wmsParams.setStyles("");
WMSOptions wmsLayerParams = new WMSOptions();
wmsLayerParams.setUntiled();
wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
String wmsUrl = "http://labs.metacarta.com/wms/vmap0";
WMS wmsLayer = new WMS("Basic WMS", wmsUrl, wmsParams, wmsLayerParams);
// Add the WMS to the map
Map map = mapWidget.getMap();
map.addLayer(wmsLayer);
// Add a measure control to the map
MeasureOptions measOpts = new MeasureOptions();
measOpts.setPersist(true);
measOpts.setGeodesic(true); // earth is not a cylinder
Measure measure = new Measure(new PathHandler(), measOpts);
map.addControl(measure);
measure.addMeasureListener(
new MeasureListener() {
public void onMeasure(MeasureEvent eventObject) {
Window.alert(
"Measured distance is " + eventObject.getMeasure() + " " + eventObject.getUnits());
}
});
measure.activate();
// Lets add some default controls to the map
map.addControl(
new LayerSwitcher()); // + sign in the upperright corner to display the layer switcher
map.addControl(new OverviewMap()); // + sign in the lowerright to display the overviewmap
map.addControl(new ScaleLine()); // Display the scaleline
// Center and zoom to a location
map.setCenter(new LonLat(146.7, -41.8), 6);
contentPanel.add(
new HTML(
"<p>This example shows how to add a Measure Control to the map.</p><p>Click on the map to add measure points, end a measurement using double click.</p><p>Note that you could add buttons to enable/disable the measure control on command.</p>"));
contentPanel.add(mapWidget);
initWidget(contentPanel);
mapWidget
.getElement()
.getFirstChildElement()
.getStyle()
.setZIndex(0); // force the map to fall behind popups
}