Example usage for com.google.gwt.maps.client.overlay Polygon getArea

Introduction

In this page you can find the example usage for com.google.gwt.maps.client.overlay Polygon getArea.

Prototype

public double getArea() 

Source Link

Document

Returns the area (in square meters) of the polygon, assuming a spherical Earth.

Usage

From source file:com.google.gwt.maps.sample.hellomaps.client.DrawingOverlayDemo.java

License:Apache License

private void createPolygon() {
    PolyStyleOptions style = PolyStyleOptions.newInstance(color, weight, opacity);

    final Polygon poly = new Polygon(new LatLng[0], color, weight, opacity, color, fillFlag ? .7 : 0.0);
    lastPolygon = poly;// w  w w.j  a va 2s . c om
    map.addOverlay(poly);
    poly.setDrawingEnabled();
    poly.setStrokeStyle(style);
    message2.setText("");
    poly.addPolygonLineUpdatedHandler(new PolygonLineUpdatedHandler() {

        public void onUpdate(PolygonLineUpdatedEvent event) {
            message2.setText(message2.getText() + " : Polygon Updated");
        }
    });

    poly.addPolygonCancelLineHandler(new PolygonCancelLineHandler() {

        public void onCancel(PolygonCancelLineEvent event) {
            message2.setText(message2.getText() + " : Polygon Cancelled");
        }
    });

    poly.addPolygonEndLineHandler(new PolygonEndLineHandler() {

        public void onEnd(PolygonEndLineEvent event) {
            message2.setText(message2.getText() + " : Polygon End at " + event.getLatLng() + ".  Bounds="
                    + poly.getBounds().getNorthEast() + "," + poly.getBounds().getSouthWest() + " area="
                    + poly.getArea() + "m");
        }
    });
}

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