Example usage for com.google.gwt.maps.client.overlays Polyline getPath

Introduction

In this page you can find the example usage for com.google.gwt.maps.client.overlays Polyline getPath.

Prototype

public final native MVCArray<LatLng> getPath() ;

Source Link

Document

Retrieves the first path.

Usage

From source file:com.google.gwt.maps.testing.client.maps.DrawingMapWidget.java

License:Apache License

private void drawDrawing() {

    DrawingControlOptions drawingControlOptions = DrawingControlOptions.newInstance();
    drawingControlOptions.setPosition(ControlPosition.TOP_CENTER);
    drawingControlOptions.setDrawingModes(OverlayType.values());

    CircleOptions circleOptions = CircleOptions.newInstance();
    // circleOptions.setFillColor("FF6633");

    DrawingManagerOptions options = DrawingManagerOptions.newInstance();
    options.setMap(mapWidget);// w w  w  . j  av  a2s . com
    options.setDrawingMode(OverlayType.CIRCLE);
    options.setCircleOptions(circleOptions);

    options.setDrawingControlOptions(drawingControlOptions);

    DrawingManager o = DrawingManager.newInstance(options);

    o.addCircleCompleteHandler(new CircleCompleteMapHandler() {
        @Override
        public void onEvent(CircleCompleteMapEvent event) {
            Circle circle = event.getCircle();
            GWT.log("circle completed radius=" + circle.getRadius());
        }
    });

    o.addMarkerCompleteHandler(new MarkerCompleteMapHandler() {
        @Override
        public void onEvent(MarkerCompleteMapEvent event) {
            Marker marker = event.getMarker();
            GWT.log("marker completed position=" + marker.getPosition());
        }
    });

    o.addOverlayCompleteHandler(new OverlayCompleteMapHandler() {
        @Override
        public void onEvent(OverlayCompleteMapEvent event) {
            OverlayType ot = event.getOverlayType();
            GWT.log("marker completed OverlayType=" + ot.toString());

            if (ot == OverlayType.CIRCLE) {
                Circle circle = event.getCircle();
                GWT.log("radius=" + circle.getRadius());
                GWT.log("center=" + circle.getBounds().getCenter());
            }

            if (ot == OverlayType.MARKER) {
                Marker marker = event.getMarker();
                GWT.log("position=" + marker.getPosition());
                GWT.log("center=" + marker.getPosition());
            }

            if (ot == OverlayType.POLYGON) {
                Polygon polygon = event.getPolygon();
                GWT.log("paths=" + polygon.getPaths().toString());

                // print path points
                MVCArray<LatLng> points = polygon.getPath();
                for (int g = 0; g < points.getLength(); g++) {
                    LatLng p = points.get(g);
                    GWT.log("[" + p.getLatitude() + "," + p.getLongitude() + "]");
                }

                GWT.log("center=" + polygon.getPath());
            }

            if (ot == OverlayType.POLYLINE) {
                Polyline polyline = event.getPolyline();
                GWT.log("paths=" + polyline.getPath().toString());
                GWT.log("center=" + polyline.getPath());
            }

            if (ot == OverlayType.RECTANGLE) {
                Rectangle rectangle = event.getRectangle();
                GWT.log("bounds=" + rectangle.getBounds());
                GWT.log("center=" + rectangle.getBounds().getCenter());
            }

            GWT.log("marker completed OverlayType=" + ot.toString());
        }
    });

    o.addPolygonCompleteHandler(new PolygonCompleteMapHandler() {
        @Override
        public void onEvent(PolygonCompleteMapEvent event) {
            Polygon polygon = event.getPolygon();
            GWT.log("Polygon completed paths=" + polygon.getPath().toString());
        }
    });

    o.addPolylineCompleteHandler(new PolylineCompleteMapHandler() {
        @Override
        public void onEvent(PolylineCompleteMapEvent event) {
            Polyline polyline = event.getPolyline();
            GWT.log("Polyline completed paths=" + polyline.getPath().toString());
        }
    });

    o.addRectangleCompleteHandler(new RectangleCompleteMapHandler() {
        @Override
        public void onEvent(RectangleCompleteMapEvent event) {
            Rectangle rectangle = event.getRectangle();
            GWT.log("Rectangle completed bounds=" + rectangle.getBounds().getToString());
        }
    });

}

---

From source file:com.google.gwt.maps.testing.client.maps.PolylineMapWidget.java

License:Apache License

/**
 * Return the center of a given polyline - send from server if it is a ton of
 * points due to full path scan//from   w  ww .j a  v  a  2 s.com
 * 
 * @param polyline
 * @return
 */
// TODO can be moved into a utility class if frequently used
private LatLng getPolyLineCenter(Polyline polyline) {
    if (polyline == null) {
        return null;
    }

    // checks
    JsArray<LatLng> path = polyline.getPath().getArray();
    if (path.length() == 0) {
        return null;
    }
    LatLng startPt = path.get(0);
    if (path.length() == 1) {
        return startPt;
    }

    double maxLat = startPt.getLatitude(), minLat = startPt.getLatitude(), maxLng = startPt.getLongitude(),
            minLng = startPt.getLongitude();
    for (int n = 1; n < path.length(); n++) {
        LatLng p = path.get(n);
        if (p.getLatitude() > maxLat) {
            maxLat = p.getLatitude();
        }
        if (p.getLongitude() > maxLng) {
            maxLng = p.getLongitude();
        }
        if (p.getLatitude() < minLat) {
            minLat = p.getLatitude();
        }
        if (p.getLongitude() < minLng) {
            minLng = p.getLongitude();
        }
    }

    return LatLng.newInstance(minLat + 0.5 * (maxLat - minLat), minLng + 0.5 * (maxLng - minLng));
}

---