Java Code Examples for com.mapbox.geojson.Point#latitude()

/**
 * Creates an initial animation with the given {@link RouteInformation#route()}.
 * <p>
 * This is the first animation that fires prior to receiving progress updates.
 * <p>
 * If a user interacts with the {@link MapboxMap} while the animation is in progress,
 * the animation will be cancelled.  So it's important to add the {@link ProgressChangeListener}
 * in both onCancel() and onFinish() scenarios.
 *
 * @param routeInformation with route data
 */
private void animateCameraFromRoute(RouteInformation routeInformation) {

  Camera cameraEngine = navigation.getCameraEngine();

  Point targetPoint = cameraEngine.target(routeInformation);
  LatLng targetLatLng = new LatLng(targetPoint.latitude(), targetPoint.longitude());
  double bearing = cameraEngine.bearing(routeInformation);
  double zoom = cameraEngine.zoom(routeInformation);

  CameraPosition position = new CameraPosition.Builder()
    .target(targetLatLng)
    .bearing(bearing)
    .zoom(zoom)
    .build();

  updateMapCameraPosition(position, new AddProgressListenerCancelableCallback(navigation, progressChangeListener));
}
 

/**
 * Creates a camera position with the current location and upcoming maneuver location.
 * <p>
 * Using {@link MapboxMap#getCameraForLatLngBounds(LatLngBounds, int[])} with a {@link LatLngBounds}
 * that includes the current location and upcoming maneuver location.
 *
 * @param location      for current location
 * @param routeProgress for upcoming maneuver location
 * @return camera position that encompasses both locations
 */
private CameraPosition createCameraPosition(Location location, RouteProgress routeProgress) {
  LegStep upComingStep = routeProgress.currentLegProgress().upComingStep();
  if (upComingStep != null) {
    Point stepManeuverPoint = upComingStep.maneuver().location();

    List<LatLng> latLngs = new ArrayList<>();
    LatLng currentLatLng = new LatLng(location);
    LatLng maneuverLatLng = new LatLng(stepManeuverPoint.latitude(), stepManeuverPoint.longitude());
    latLngs.add(currentLatLng);
    latLngs.add(maneuverLatLng);

    if (latLngs.size() < 1 || currentLatLng.equals(maneuverLatLng)) {
      return mapboxMap.getCameraPosition();
    }

    LatLngBounds cameraBounds = new LatLngBounds.Builder()
      .includes(latLngs)
      .build();

    int[] padding = {0, 0, 0, 0};
    return mapboxMap.getCameraForLatLngBounds(cameraBounds, padding);
  }
  return mapboxMap.getCameraPosition();
}
 

private static boolean inRing(Point pt, List<Point> ring) {
  boolean isInside = false;

  for (int i = 0, j = ring.size() - 1; i < ring.size(); j = i++) {
    double xi = ring.get(i).longitude();
    double yi = ring.get(i).latitude();
    double xj = ring.get(j).longitude();
    double yj = ring.get(j).latitude();
    boolean intersect = (
      (yi > pt.latitude()) != (yj > pt.latitude()))
      && (pt.longitude() < (xj - xi) * (pt.latitude() - yi) / (yj - yi) + xi);
    if (intersect) {
      isInside = !isInside;
    }
  }
  return isInside;
}
 

private static double[] bboxCalculator(List<Point> resultCoords) {
  double[] bbox = new double[4];

  bbox[0] = Double.POSITIVE_INFINITY;
  bbox[1] = Double.POSITIVE_INFINITY;
  bbox[2] = Double.NEGATIVE_INFINITY;
  bbox[3] = Double.NEGATIVE_INFINITY;

  for (Point point : resultCoords) {
    if (bbox[0] > point.longitude()) {
      bbox[0] = point.longitude();
    }
    if (bbox[1] > point.latitude()) {
      bbox[1] = point.latitude();
    }
    if (bbox[2] < point.longitude()) {
      bbox[2] = point.longitude();
    }
    if (bbox[3] < point.latitude()) {
      bbox[3] = point.latitude();
    }
  }
  return bbox;
}
 

/**
 * Square distance from a point to a segment.
 *
 * @param point {@link Point} whose distance from segment needs to be determined
 * @param p1,p2 points defining the segment
 * @return square of the distance between first input point and segment defined by
 *   other two input points
 */
private static double getSqSegDist(Point point, Point p1, Point p2) {
  double horizontal = p1.longitude();
  double vertical = p1.latitude();
  double diffHorizontal = p2.longitude() - horizontal;
  double diffVertical = p2.latitude() - vertical;

  if (diffHorizontal != 0 || diffVertical != 0) {
    double total = ((point.longitude() - horizontal) * diffHorizontal + (point.latitude()
      - vertical) * diffVertical) / (diffHorizontal * diffHorizontal + diffVertical
      * diffVertical);
    if (total > 1) {
      horizontal = p2.longitude();
      vertical = p2.latitude();

    } else if (total > 0) {
      horizontal += diffHorizontal * total;
      vertical += diffVertical * total;
    }
  }

  diffHorizontal = point.longitude() - horizontal;
  diffVertical = point.latitude() - vertical;

  return diffHorizontal * diffHorizontal + diffVertical * diffVertical;
}
 

@NonNull
private Marker createMarkerFromIcon(Context context, Point position) {
  LatLng markerPosition = new LatLng(position.latitude(),
    position.longitude());
  Icon markerIcon = ThemeSwitcher.retrieveThemeMapMarker(context);
  return mapboxMap.addMarker(new MarkerOptions()
    .position(markerPosition)
    .icon(markerIcon));
}
 

@Test
public void onInformationFromRoute_engineCreatesCorrectTarget() throws Exception {
  DynamicCamera cameraEngine = buildDynamicCamera();
  RouteInformation routeInformation = RouteInformation.create(buildDirectionsRoute(), null, null);

  Point target = cameraEngine.target(routeInformation);

  double lng = target.longitude();
  assertEquals(-122.416686, lng);
  double lat = target.latitude();
  assertEquals(37.783425, lat);
}
 

@Test
public void onInformationFromLocationAndProgress_engineCreatesCorrectTarget() throws Exception {
  DynamicCamera cameraEngine = buildDynamicCamera();
  RouteInformation routeInformation = RouteInformation.create(null,
    buildDefaultLocationUpdate(-77.0339782574523, 38.89993519985637), buildDefaultRouteProgress(null));

  Point target = cameraEngine.target(routeInformation);

  double lng = target.longitude();
  assertEquals(-77.0339782574523, lng);
  double lat = target.latitude();
  assertEquals(38.89993519985637, lat);
}
 

private void updateRouteAfterWaypointChange() {
    if (this.waypoints.isEmpty()) {
        hideLoading();
    } else {
        Point lastPoint = this.waypoints.get(this.waypoints.size() - 1);
        LatLng latLng = new LatLng(lastPoint.latitude(), lastPoint.longitude());
        setCurrentMarkerPosition(latLng);
        if (this.waypoints.size() > 0) {
            fetchRoute();
        } else {
            hideLoading();
        }
    }
}
 

private void zoomToFeatureIfNecessary(Feature featureClicked) {
    LatLngBounds cameraBounds = getMap().getProjection().getVisibleRegion().latLngBounds;
    LatLngBounds.Builder advisoryLatLngsBuilder = new LatLngBounds.Builder();
    boolean zoom = false;

    Geometry geometry = featureClicked.geometry();
    List<Point> points = new ArrayList<>();
    if (geometry instanceof Polygon) {
        points.addAll(((Polygon) geometry).outer().coordinates());
    } else if (geometry instanceof MultiPolygon) {
        List<Polygon> polygons = ((MultiPolygon) geometry).polygons();
        for (Polygon polygon : polygons) {
            points.addAll(polygon.outer().coordinates());
        }
    }

    for (Point position : points) {
        LatLng latLng = new LatLng(position.latitude(), position.longitude());
        advisoryLatLngsBuilder.include(latLng);
        if (!cameraBounds.contains(latLng)) {
            Timber.d("Camera position doesn't contain point");
            zoom = true;
        }
    }

    if (zoom) {
        int padding = Utils.dpToPixels(getContext(), 72).intValue();
        getMap().moveCamera(CameraUpdateFactory.newLatLngBounds(advisoryLatLngsBuilder.build(), padding));
    }
}
 

/**
 * Square distance between 2 points.
 *
 * @param p1 first {@link Point}
 * @param p2 second Point
 * @return square of the distance between two input points
 */
private static double getSqDist(Point p1, Point p2) {
  double dx = p1.longitude() - p2.longitude();
  double dy = p1.latitude() - p2.latitude();
  return dx * dx + dy * dy;
}