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

Introduction

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

Prototype

public static Polygon fromEncoded(EncodedPolyline[] polylines, boolean fill, String color, double opacity,
        boolean outline) 

Source Link

Document

Create a polygon from an array of polylines.

Usage

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

License:Apache License

private void displayOverlay() {

    map.clearOverlays();//from w w  w  .j a va2  s . com

    LatLngBounds bounds = map.getBounds();
    LatLng southWest = bounds.getSouthWest();
    LatLng northEast = bounds.getNorthEast();
    double lngSpan = northEast.getLongitude() - southWest.getLongitude();
    double latSpan = northEast.getLatitude() - southWest.getLatitude();

    LatLng[] points = new LatLng[NUM_POINTS];

    for (int i = 0; i < NUM_POINTS; i++) {
        points[i] = LatLng.newInstance(southWest.getLatitude() + latSpan * Math.random(),
                southWest.getLongitude() + lngSpan * Math.random());
        GWT.log("points[" + i + "] = " + points[i] + " z-index = " + Marker.getZIndex(points[i].getLatitude()),
                null);
    }

    OverlayDemos selected = OverlayDemos.values()[actionListBox.getSelectedIndex()];

    switch (selected) {
    case TEST_TEN_MARKERS: {
        // Add markers in random locations on the map
        for (int i = 0; i < NUM_POINTS; i++) {
            map.addOverlay(new Marker(points[i]));
        }
    }
        break;

    case TEST_POLYLINE_ONE: {
        // Add a polyline with NUM_POINTS random points. Sort the points by
        // longitude so that the line does not intersect itself.
        Arrays.sort(points, new Comparator<LatLng>() {
            public int compare(LatLng p1, LatLng p2) {
                return new Double(p1.getLongitude()).compareTo(new Double(p2.getLongitude()));
            }
        });
        Polyline pline = new Polyline(points);
        map.addOverlay(pline);
        if (pline.getVertexCount() != NUM_POINTS) {
            Window.alert("Created polyline with " + NUM_POINTS + " vertices, but now it has "
                    + pline.getVertexCount());
        }
    }
        break;

    case TEST_POLYLINE_ENCODED: {
        // Add a polyline encoded in a string
        map.setCenter(LatLng.newInstance(40.71213418976525, -73.96785736083984), 15);
        Polyline pline = Polyline.fromEncoded("#3333cc", 10, 1.0, ENCODED_POINTS, 32, ENCODED_LEVELS, 4);
        map.addOverlay(pline);
    }
        break;
    case TEST_POLYLINE_GEODESIC: {
        LatLng nycToZurich[] = { LatLng.newInstance(40.75, -73.90), // New York
                LatLng.newInstance(47.3, 8.5) // Zurich
        };
        map.setCenter(LatLng.newInstance(40, -25), 2);
        Polyline pline = new Polyline(nycToZurich, "#FF0000", 1, .75, PolylineOptions.newInstance(false, true));
        map.addOverlay(pline);
    }
        break;
    case TEST_POLYLINE_ENCODED_TRANSPARENT: {
        // Add a polyline with transparency
        map.setCenter(LatLng.newInstance(40.71213418976525, -73.96785736083984), 15);
        Polyline pline = Polyline.fromEncoded(ENCODED_POINTS, 32, ENCODED_LEVELS, 4);
        map.addOverlay(pline);
    }
        break;

    case TEST_POLYGON_ENCODED: {
        // Add a polygon encoded as a series of polylines.
        map.setCenter(LatLng.newInstance(33.75951619957536, -84.39289301633835), 20);
        EncodedPolyline[] polylines = new EncodedPolyline[2];
        polylines[0] = EncodedPolyline.newInstance("au`mEz_bbO?sAbA@?pAcA?", 2, "BBBBB", 1, "#ff0000", 2, 0.9);

        polylines[1] = EncodedPolyline.newInstance("{t`mEt_bbO?eAx@??dAy@?", 2, "BBBBB", 1);
        polylines[1].setColor("#ff0000");
        polylines[1].setWeight(2);
        polylines[1].setOpacity(0.7);

        Polygon theFountain = Polygon.fromEncoded(polylines, true, "#ff0000", 0.2, true);
        map.addOverlay(theFountain);
        map.setCurrentMapType(MapType.getHybridMap());
    }
        break;

    default:
        Window.alert("Cannot handle selection: " + selected.valueOf());
        break;
    }
}

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From source file:org.onebusaway.webapp.gwt.oba_library.model.TimedPolygonModel.java

License:Apache License

public void setData(List<EncodedPolygonBean> polygons, List<Integer> times, boolean complete) {

    _polygons.clear();/*  w w  w  .j av a 2s . c om*/
    _minTime = Integer.MAX_VALUE;
    _maxTime = 0;
    _complete = complete;

    for (int i = 0; i < polygons.size(); i++) {

        EncodedPolygonBean bean = polygons.get(i);
        List<EncodedPolylineBean> inner = bean.getInnerRings();

        EncodedPolyline[] lines = new EncodedPolyline[1 + inner.size()];

        lines[0] = createPolyline(bean.getOuterRing());

        for (int x = 0; x < inner.size(); x++)
            lines[1 + x] = createPolyline(inner.get(x));

        int time = times.get(i);
        _minTime = Math.min(time, _minTime);
        _maxTime = Math.max(time, _maxTime);

        Polygon poly = Polygon.fromEncoded(lines, true, "#0000FF", 0.1, true);
        TimedPolygon tp = new TimedPolygon(poly, time);
        _polygons.add(tp);

    }

    refresh();
}

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