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geoportal-data-viewer-app
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optimized map init

This commit is contained in:
Francesco Mangiacrapa 2020-11-12 12:03:22 +01:00
parent 7a36ef5ed5
commit 8dc710686f
5 changed files with 67 additions and 14 deletions
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11
src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewer.java
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@ -4,6 +4,7 @@ import java.util.List;
import org.gcube.portlets.user.geoportaldataviewer.client.events.ShowDetailsEvent;
import org.gcube.portlets.user.geoportaldataviewer.client.events.ShowDetailsEventHandler;
import org.gcube.portlets.user.geoportaldataviewer.client.gis.MapUtils;
import org.gcube.portlets.user.geoportaldataviewer.client.gis.OpenLayerOSM;
import org.gcube.portlets.user.geoportaldataviewer.client.ui.GeonaDataViewMainPanel;
import org.gcube.portlets.user.geoportaldataviewer.client.util.URLUtil;
@ -25,6 +26,9 @@ import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.RootPanel;
import ol.Coordinate;
import ol.OLFactory;
// TODO: Auto-generated Javadoc
/**
* Entry point classes define <code>onModuleLoad()</code>.
@ -82,6 +86,13 @@ public class GeoportalDataViewer implements EntryPoint {
olMap = new OpenLayerOSM(mainPanel.getMapPanel().getElement().getId(),layerManager.getEventBus());
layerManager.setOlMap(olMap);
mainPanel.setMap(olMap);
//EPSG_4326_TO_ITALY
Coordinate centerCoordinate = OLFactory.createCoordinate(GeoportalDataViewerConstants.ITALY_CENTER_LONG, GeoportalDataViewerConstants.ITALY_CENTER_LAT);
Coordinate transformedCenterCoordinate = MapUtils.transformCoordiante(centerCoordinate, GeoportalDataViewerConstants.EPSG_4326, GeoportalDataViewerConstants.EPSG_3857);
olMap.setCenter(transformedCenterCoordinate);
olMap.setZoom(GeoportalDataViewerConstants.ITALY_FIT_ZOOM_ON);
}
});

7
src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/GeoportalDataViewerConstants.java
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@ -21,5 +21,12 @@ public class GeoportalDataViewerConstants {
public static final int MAX_WFS_FEATURES = 5; // zero for no limit
public static final String NEW_LINE_BR = "<br/>";
public static final double ITALY_CENTER_LONG = 12.45;
public static final double ITALY_CENTER_LAT = 42.98;
public static final int ITALY_FIT_ZOOM_ON = 5;
}

31
src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/gis/LightOpenLayerOSM.java
View File

@ -95,12 +95,12 @@ import ol.style.TextOptions;
// create a view
view = new View(viewOptions);
//EPSG_4326_TO_ITALY
Coordinate centerCoordinate = OLFactory.createCoordinate(12.45, 42.98);
Coordinate transformedCenterCoordinate = Projection.transform(centerCoordinate, GeoportalDataViewerConstants.EPSG_4326, GeoportalDataViewerConstants.EPSG_3857);
view.setCenter(transformedCenterCoordinate);
view.setZoom(5);
// //EPSG_4326_TO_ITALY
// Coordinate centerCoordinate = OLFactory.createCoordinate(12.45, 42.98);
// Coordinate transformedCenterCoordinate = Projection.transform(centerCoordinate, GeoportalDataViewerConstants.EPSG_4326, GeoportalDataViewerConstants.EPSG_3857);
//
// view.setCenter(transformedCenterCoordinate);
// view.setZoom(5);
// create the map
MapOptions mapOptions = OLFactory.createOptions();
@ -163,6 +163,25 @@ import ol.style.TextOptions;
}
/**
* Sets the center.
*
* @param centerCoordinate the new center
*/
public void setCenter(Coordinate centerCoordinate) {
view.setCenter(centerCoordinate);
}
/**
* Sets the center.
*
* @param centerCoordinate the new center
*/
public void setZoom(int zoom) {
view.setZoom(zoom);
}
/**
* Adds the WMS layer.
*

24
src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/gis/OpenLayerOSM.java
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@ -112,13 +112,6 @@ public class OpenLayerOSM {
// create a view
view = new View(viewOptions);
//EPSG_4326_TO_ITALY
Coordinate centerCoordinate = OLFactory.createCoordinate(12.45, 42.98);
Coordinate transformedCenterCoordinate = MapUtils.transformCoordiante(centerCoordinate, GeoportalDataViewerConstants.EPSG_4326, GeoportalDataViewerConstants.EPSG_3857);
view.setCenter(transformedCenterCoordinate);
view.setZoom(5);
// create the map
MapOptions mapOptions = OLFactory.createOptions();
@ -182,6 +175,23 @@ public class OpenLayerOSM {
}
/**
* Sets the center.
*
* @param centerCoordinate the new center
*/
public void setCenter(Coordinate centerCoordinate) {
view.setCenter(centerCoordinate);
}
/**
* Sets the center.
*
* @param centerCoordinate the new center
*/
public void setZoom(int zoom) {
view.setZoom(zoom);
}
public void showPopup(String html, Coordinate coordinate) {

8
src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/map/MapView.java
View File

@ -61,7 +61,13 @@ import ol.OLFactory;
@Override
public void execute() {
olsm = new LightOpenLayerOSM(theMapId);
olsm = new LightOpenLayerOSM(theMapId);
//EPSG_4326_TO_ITALY
Coordinate centerCoordinate = OLFactory.createCoordinate(GeoportalDataViewerConstants.ITALY_CENTER_LONG, GeoportalDataViewerConstants.ITALY_CENTER_LAT);
Coordinate transformedCenterCoordinate = MapUtils.transformCoordiante(centerCoordinate, GeoportalDataViewerConstants.EPSG_4326, GeoportalDataViewerConstants.EPSG_3857);
olsm.setCenter(transformedCenterCoordinate);
olsm.setZoom(GeoportalDataViewerConstants.ITALY_FIT_ZOOM_ON);
}
});
}