Hello, i´m new with gwt..I know only a little about this technology,
so i need some help...my problem is referent to mapserver, i want use
openlayers and mapserver to generate a map image ..for that, i use the
wrapper gwt-openlayers..then i do it something like this(see the
code), but it´s not working, the program don´t has error, but the
image don´t show....please someone help me..
CODE:
package org.yournamehere.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import org.gwtopenmaps.openlayers.client.Bounds;
import org.gwtopenmaps.openlayers.client.Icon;
import org.gwtopenmaps.openlayers.client.LonLat;
import org.gwtopenmaps.openlayers.client.Map;
import org.gwtopenmaps.openlayers.client.MapOptions;
import org.gwtopenmaps.openlayers.client.MapWidget;
import org.gwtopenmaps.openlayers.client.Marker;
import org.gwtopenmaps.openlayers.client.Pixel;
import org.gwtopenmaps.openlayers.client.Size;
import org.gwtopenmaps.openlayers.client.control.LayerSwitcher;
import org.gwtopenmaps.openlayers.client.control.MousePosition;
import org.gwtopenmaps.openlayers.client.control.MouseToolbar;
import org.gwtopenmaps.openlayers.client.control.PanZoomBar;
import org.gwtopenmaps.openlayers.client.control.Scale;
import org.gwtopenmaps.openlayers.client.event.EventHandler;
import org.gwtopenmaps.openlayers.client.layer.Layer;
import org.gwtopenmaps.openlayers.client.layer.Markers;
import org.gwtopenmaps.openlayers.client.layer.WMS;
import org.gwtopenmaps.openlayers.client.layer.WMSParams;
import org.gwtopenmaps.openlayers.client.popup.AnchoredBubble;
import org.gwtopenmaps.openlayers.client.popup.Popup;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.DockPanel;
import com.google.gwt.user.client.ui.RootPanel;
import org.gwtopenmaps.openlayers.client.util.JObjectArray;
import org.gwtopenmaps.openlayers.client.util.JSObject;
public class MainEntryPoint implements EntryPoint {
private MapWidget mapWidget;
private Map map;
private WMS wmsLayer;
private Markers markers;
private Popup popup;
private WMS layer1;
private WMS layer2;
public MainEntryPoint() {
}
public void onModuleLoad() {
MapOptions mapOptions = new MapOptions();
mapOptions.setControls(new JObjectArray(new JSObject[]{}));
mapOptions.setNumZoomLevels(16);
mapOptions.setProjection("EPSG:4326");
mapWidget = new MapWidget("800px", "475px", mapOptions);
map = mapWidget.getMap();
markers = new Markers("marker layer");
WMSParams wmsParams = new WMSParams();
wmsParams.setFormat("image/png");
wmsParams.setLayers("tiger-ny");
wmsParams.setStyles("");
wmsParams.setMaxExtent(new Bounds(-79, 0, -61, 12));
wmsLayer = new WMS("estados", "http://localhost:8080/
cgi-bin/mapserv.exe?map=C:/ms4w/Apache/htdocs/WebApplication2/src/Mapa/
Venezuela.map", wmsParams);
layer1 = new WMS("municipios", "http://localhost:8080/
cgi-bin/mapserv.exe?map=C:/ms4w/Apache/htdocs/WebApplication2/src/Mapa/
Venezuela.map", wmsParams);
layer2 = new WMS("parroquias", "http://localhost:8080/
cgi-bin/mapserv.exe?map=C:/ms4w/Apache/htdocs/WebApplication2/src/Mapa/
Venezuela.map", wmsParams);
map.addLayers(new Layer[] {wmsLayer,layer1,layer2,
markers});
map.addControl(new
PanZoomBar(RootPanel.get("nav").getElement()));
map.addControl(new
MousePosition(RootPanel.get("position").getElement()));
map.addControl(new Scale(RootPanel.get("scale").getElement()));
map.addControl(new MouseToolbar());
map.addControl(new LayerSwitcher());
LonLat center = new LonLat(679600, 180000);
map.setCenter(center, 13);
Size size = new Size(32,32);
Pixel offset = new Pixel(-5, -17);
Icon icon = new Icon("img/marker.png", size, offset);
Marker marker = new Marker(center, icon);
markers.addMarker(marker);
DockPanel dockPanel = new DockPanel();
dockPanel.add(mapWidget, DockPanel.CENTER);
dockPanel.setBorderWidth(1);
RootPanel.get("map").add(dockPanel);
}
}
thanks!!!
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