Java Code Examples for com.mapbox.mapboxsdk.style.sources.GeoJsonSource#setGeoJson()

/**
 * Takes a {@link FeatureCollection} and creates a map GeoJson source using the sourceId also
 * provided.
 *
 * @param mapboxMap  that the current mapView is using
 * @param collection the feature collection to be added to the map style
 * @param sourceId   the source's id for identifying it when adding layers
 * @since 0.8.0
 */
public static void updateMapSourceFromFeatureCollection(@NonNull MapboxMap mapboxMap,
                                                        @Nullable FeatureCollection collection,
                                                        @NonNull String sourceId) {
  if (collection == null) {
    collection = FeatureCollection.fromFeatures(new Feature[] {});
  }

  GeoJsonSource source = mapboxMap.getSourceAs(sourceId);
  if (source == null) {
    GeoJsonOptions routeGeoJsonOptions = new GeoJsonOptions().withMaxZoom(16);
    GeoJsonSource routeSource = new GeoJsonSource(sourceId, collection, routeGeoJsonOptions);
    mapboxMap.addSource(routeSource);
  } else {
    source.setGeoJson(collection);
  }
}
 

public void move(LatLng center) {
    this.center = center;
    this.points = calculateCirclePoints(center, radius);

    List<Point> positions = latLngsToPositions(points);
    List<List<Point>> coordinates = new ArrayList<>();
    coordinates.add(positions);

    List<Point> lineString = new ArrayList<>(positions);
    lineString.add(positions.get(0));

    GeoJsonSource pointSource = map.getStyle().getSourceAs(POINT_SOURCE);
    pointSource.setGeoJson(Feature.fromGeometry(Point.fromLngLat(center.getLongitude(), center.getLatitude())));

    GeoJsonSource polygonSource = map.getStyle().getSourceAs(POLYGON_SOURCE);
    polygonSource.setGeoJson(Feature.fromGeometry(Polygon.fromLngLats(coordinates)));

    FillLayer polygonFill = map.getStyle().getLayerAs(Container.POLYGON_LAYER);
    polygonFill.setProperties(PropertyFactory.fillColor(ContextCompat.getColor(context, R.color.colorAccent)));

    GeoJsonSource polylineSource = map.getStyle().getSourceAs(POLYLINE_SOURCE);
    polylineSource.setGeoJson(Feature.fromGeometry(LineString.fromLngLats(lineString)));
}
 

public boolean checkForIntersections() {
    List<LatLng> points = PointMath.findIntersections(path);
    if (points.isEmpty()) {
        return false;
    }

    List<Point> intersections = latLngsToPositions(points);
    if (map.getStyle().getLayer(INTERSECTION_LAYER) == null) {
        Source intersectionSource = new GeoJsonSource(INTERSECTION_SOURCE, Feature.fromGeometry(MultiPoint.fromLngLats(intersections)));
        map.getStyle().addSource(intersectionSource);
        Layer intersectionLayer = new SymbolLayer(INTERSECTION_LAYER, INTERSECTION_SOURCE)
                .withProperties(PropertyFactory.iconImage(INTERSECTION_IMAGE));
        map.getStyle().addLayer(intersectionLayer);
    } else {
        GeoJsonSource intersectionsSource = map.getStyle().getSourceAs(INTERSECTION_SOURCE);
        intersectionsSource.setGeoJson(Feature.fromGeometry(MultiPoint.fromLngLats(intersections)));
    }

    return true;
}
 

public void refreshSource(int contactId) {
    MapSource source = contactMapSources.get(contactId);
    LinkedList<Feature> collection = featureCollections.get(source.getMarkerFeatureCollection());
    GeoJsonSource pointSource = (GeoJsonSource) mapboxStyle.getSource(source.getMarkerSource());
    pointSource.setGeoJson(FeatureCollection.fromFeatures(collection));
    LinkedList<Feature> lineFeatures = featureCollections.get(source.getLineFeatureCollection());
    GeoJsonSource lineSource = (GeoJsonSource) mapboxStyle.getSource(source.getLineSource());
    lineSource.setGeoJson(FeatureCollection.fromFeatures(lineFeatures));
    GeoJsonSource lastPostionSource = (GeoJsonSource) mapboxStyle.getSource(LAST_POSITION_SOURCE);
    lastPostionSource.setGeoJson(FeatureCollection.fromFeatures(new LinkedList<>(lastPositions.values())));
}
 

public boolean unselectMarker() {
    if (selectedFeature != null) {
        selectedFeature.addBooleanProperty(MARKER_SELECTED, false);
        refreshSource(selectedFeature.getNumberProperty(CONTACT_ID).intValue());
        selectedFeature = null;
        GeoJsonSource source = (GeoJsonSource) mapboxStyle.getSource(INFO_WINDOW_SRC);
        source.setGeoJson(FeatureCollection.fromFeatures(new ArrayList<>()));
        return true;
    }
    return false;
}
 

/**
 * Invoked when the bitmaps have been generated from a view.
 */
@Override
public void setInfoWindowResults(Bitmap result) {
    mapboxStyle.addImage(INFO_WINDOW_ID, result);
    GeoJsonSource infoWindowSource = (GeoJsonSource) mapboxStyle.getSource(INFO_WINDOW_SRC);
    infoWindowSource.setGeoJson(selectedFeature);
}