Java Code Examples for com.mapbox.mapboxsdk.geometry.LatLngBounds

/**
 * 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();
}
 

public void boundCameraToRoute() {
  if (route != null) {
    List<Point> routeCoords = LineString.fromPolyline(route.geometry(),
      Constants.PRECISION_6).coordinates();
    List<LatLng> bboxPoints = new ArrayList<>();
    for (Point point : routeCoords) {
      bboxPoints.add(new LatLng(point.latitude(), point.longitude()));
    }
    if (bboxPoints.size() > 1) {
      try {
        LatLngBounds bounds = new LatLngBounds.Builder().includes(bboxPoints).build();
        // left, top, right, bottom
        int topPadding = launchBtnFrame.getHeight() * 2;
        animateCameraBbox(bounds, CAMERA_ANIMATION_DURATION, new int[] {50, topPadding, 50, 100});
      } catch (InvalidLatLngBoundsException exception) {
        Toast.makeText(this, R.string.error_valid_route_not_found, Toast.LENGTH_SHORT).show();
      }
    }
  }
}
 

private void boundCameraToRoute() {
    if (route != null) {
        List<Point> routeCoords = LineString.fromPolyline(route.geometry(),
                Constants.PRECISION_6).coordinates();
        List<LatLng> bboxPoints = new ArrayList<>();
        for (Point point : routeCoords) {
            bboxPoints.add(new LatLng(point.latitude(), point.longitude()));
        }
        if (bboxPoints.size() > 1) {
            try {
                LatLngBounds bounds = new LatLngBounds.Builder().includes(bboxPoints).build();
                // left, top, right, bottom
                animateCameraBbox(bounds, CAMERA_ANIMATION_DURATION, padding);
            } catch (InvalidLatLngBoundsException exception) {
                Toast.makeText(this, R.string.error_valid_route_not_found, Toast.LENGTH_SHORT).show();
            }
        }
    }
}
 

OfflineRegionDefinition createRegion() {
  if (mapboxMap == null) {
    throw new NullPointerException("MapboxMap is null and can't be used to create Offline region"
      + "definition.");
  }
  RectF rectF = getSelectionRegion();
  LatLng northEast = mapboxMap.getProjection().fromScreenLocation(new PointF(rectF.right, rectF.top));
  LatLng southWest = mapboxMap.getProjection().fromScreenLocation(new PointF(rectF.left, rectF.bottom));

  LatLngBounds bounds = new LatLngBounds.Builder().include(northEast).include(southWest).build();
  double cameraZoom = mapboxMap.getCameraPosition().zoom;
  float pixelRatio = getActivity().getResources().getDisplayMetrics().density;

  return new OfflineTilePyramidRegionDefinition(
    mapboxMap.getStyle().getUrl(), bounds, cameraZoom - 2, cameraZoom + 2, pixelRatio
  );
}
 

public DataCollectionTask(DcContext context,
                          int chatId,
                          int[] contactIds,
                          ConcurrentHashMap<Integer, MapSource> contactMapSources,
                          ConcurrentHashMap featureCollections,
                          ConcurrentHashMap<Integer, Feature> lastPositions,
                          LatLngBounds.Builder boundingBuilder,
                          DataCollectionCallback callback) {
    this.chatId = chatId;
    this.contactMapSources = contactMapSources;
    this.featureCollections = featureCollections;
    this.lastPositions = lastPositions;
    this.boundingBuilder = boundingBuilder;
    this.dcContext = context;
    this.callback = callback;
    this.contactIds = contactIds;
    instances.add(this);
}
 

public MapDataManager(Context context, @NonNull Style mapboxMapStyle, LocationComponent locationComponent, int chatId, MapDataState updateCallback) {
    Log.d(TAG, "performance test - create map manager");
    this.mapboxStyle = mapboxMapStyle;
    this.context = context;
    this.dcContext = DcHelper.getContext(context);
    this.chatId = chatId;
    boundingBuilder = new LatLngBounds.Builder();
    this.callback = updateCallback;
    this.locationComponent = locationComponent;

    initInfoWindowLayer();
    initLastPositionLayer();
    initLocationComponent();

    filterProvider.setMessageFilter(true);
    filterProvider.setLastPositionFilter(System.currentTimeMillis() - DEFAULT_LAST_POSITION_DELTA);
    applyLastPositionFilter();

    updateSources();
    dcContext.eventCenter.addObserver(DC_EVENT_LOCATION_CHANGED, this);

    Log.d(TAG, "performance test - create map manager finished");
}
 

@Override
public void onDataCollectionFinished() {
    for (MapSource source : contactMapSources.values()) {
        initContactBasedLayers(source);
        refreshSource(source.getContactId());
        applyMarkerFilter(source);
        applyLineFilter(source);
    }

    if (boundingBuilder != null && callback != null) {
        LatLngBounds bound = null;
        try {
            bound = boundingBuilder.build();
        } catch (InvalidLatLngBoundsException e) {
            Log.w(TAG, e.getLocalizedMessage());
        }
        callback.onDataInitialized(bound);
    }
}
 

@NonNull
private CameraUpdate buildOverviewCameraUpdate(int[] padding, List<Point> routePoints) {
  final LatLngBounds routeBounds = convertRoutePointsToLatLngBounds(routePoints);
  return CameraUpdateFactory.newLatLngBounds(
    routeBounds, padding[0], padding[1], padding[2], padding[3]
  );
}
 

private LatLngBounds convertRoutePointsToLatLngBounds(List<Point> routePoints) {
  List<LatLng> latLngs = new ArrayList<>();
  for (Point routePoint : routePoints) {
    latLngs.add(new LatLng(routePoint.latitude(), routePoint.longitude()));
  }
  return new LatLngBounds.Builder()
    .includes(latLngs)
    .build();
}
 

private void moveCameraToInclude(Point destination) {
  LatLng origin = new LatLng(lastLocation);
  LatLngBounds bounds = new LatLngBounds.Builder()
    .include(origin)
    .include(new LatLng(destination.latitude(), destination.longitude()))
    .build();
  Resources resources = getResources();
  int routeCameraPadding = (int) resources.getDimension(R.dimen.component_navigation_route_camera_padding);
  int[] padding = {routeCameraPadding, routeCameraPadding, routeCameraPadding, routeCameraPadding};
  CameraPosition cameraPosition = navigationMap.retrieveMap().getCameraForLatLngBounds(bounds, padding);
  navigationMap.retrieveMap().animateCamera(
    CameraUpdateFactory.newCameraPosition(cameraPosition), TWO_SECONDS_IN_MILLISECONDS
  );
}
 

/**
 * You can pass in a {@link MapLocale} directly into this method which uses the country bounds
 * defined in it to represent the language found on the map.
 *
 * @param mapLocale the {@link MapLocale} object which contains the desired map bounds
 * @param padding   camera padding
 * @since 0.1.0
 */
public void setCameraToLocaleCountry(MapLocale mapLocale, int padding) {
  LatLngBounds bounds = mapLocale.getCountryBounds();
  if (bounds == null) {
    throw new NullPointerException("Expected a LatLngBounds object but received null instead. Mak"
      + "e sure your MapLocale instance also has a country bounding box defined.");
  }
  mapboxMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds, padding));
}
 

@Override
public LatLngBounds getLatLngBoundsForZoom() {
    LatLngBounds.Builder latLngBounds = new LatLngBounds.Builder();
    for (List<Point> list : polygon.coordinates()) {
        for (Point position : list) {
            latLngBounds.include(new LatLng(position.latitude(), position.longitude()));
        }
    }

    return latLngBounds.build();
}
 

@Override
public LatLngBounds getLatLngBoundsForZoom() {
    LatLngBounds.Builder latLngBounds = new LatLngBounds.Builder();
    for (List<Point> list : polygon.coordinates()) {
        for (Point position : list) {
            latLngBounds.include(new LatLng(position.latitude(), position.longitude()));
        }
    }
    return latLngBounds.build();
}
 

public LatLng getVisualCenter() {
    LatLngBounds latLngBounds = new LatLngBounds.Builder().includes(path).build();

    LatLng center = latLngBounds.getCenter();
    if (TurfJoins.inside(Point.fromLngLat(center.getLongitude(), center.getLatitude()), polygon)) {
        return center;
    }

    return path.get(0);
}
 

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));
    }
}
 

protected AirMapPolygon getPolygon() {
    VisibleRegion region = map.getMap().getProjection().getVisibleRegion();
    LatLngBounds bounds = region.latLngBounds;

    List<Coordinate> coordinates = new ArrayList<>();
    coordinates.add(new Coordinate(bounds.getLatNorth(), bounds.getLonWest()));
    coordinates.add(new Coordinate(bounds.getLatNorth(), bounds.getLonEast()));
    coordinates.add(new Coordinate(bounds.getLatSouth(), bounds.getLonEast()));
    coordinates.add(new Coordinate(bounds.getLatSouth(), bounds.getLonWest()));
    coordinates.add(new Coordinate(bounds.getLatNorth(), bounds.getLonWest()));

    return new AirMapPolygon(coordinates);
}
 

public static LatLngBounds getMapBounds(){
    try{
        return new LatLngBounds.Builder()
                .include(new LatLng(AirMap.getConfig().getJSONObject("app").getJSONObject("map").getJSONObject("bounds").getJSONObject("northeast").getDouble("latitude"),
                        AirMap.getConfig().getJSONObject("app").getJSONObject("map").getJSONObject("bounds").getJSONObject("northeast").getDouble("longitude")))
                .include(new LatLng(AirMap.getConfig().getJSONObject("app").getJSONObject("map").getJSONObject("bounds").getJSONObject("southwest").getDouble("latitude"),
                        AirMap.getConfig().getJSONObject("app").getJSONObject("map").getJSONObject("bounds").getJSONObject("southwest").getDouble("longitude")))
                .build();
    } catch (JSONException e){
        Timber.e(e);
        return null;
    }
}
 

public DataCollector(DcContext dcContext,
                     ConcurrentHashMap<Integer, MapSource> contactMapSources,
                     ConcurrentHashMap<String, LinkedList<Feature>> featureCollections,
                     ConcurrentHashMap<Integer, Feature> lastPositions,
                     LatLngBounds.Builder boundingBuilder) {
    this.dcContext = dcContext;
    this.contactMapSources = contactMapSources;
    this.featureCollections = featureCollections;
    this.lastPositions = lastPositions;
    this.boundingBuilder = boundingBuilder;
}
 

private void initCameraPosition(MapboxMap map,Context context, BoundingBox bbox) {
    LatLngBounds bounds = LatLngBounds.from(bbox.north(), bbox.east(), bbox.south(), bbox.west());
    MapboxExtensionKt.initDefaultCamera(map, context, bounds);
}
 

private void loadDataForStyle(Style style, HashMap<String, FeatureCollection> teiFeatureCollection, BoundingBox bbox) {
    binding.mapLayerButton.setVisibility(View.VISIBLE);
    if (!changingStyle) {
        MapLayerManager.Companion.init(style, "teis", featureType);
        MapLayerManager.Companion.instance().setEnrollmentLayerData(
                presenter.getProgram() != null ?
                        ColorUtils.getColorFrom(presenter.getProgram().style() != null ? presenter.getProgram().style().color() : null, ColorUtils.getPrimaryColor(getContext(), ColorUtils.ColorType.PRIMARY)) :
                        ColorUtils.getPrimaryColor(getContext(), ColorUtils.ColorType.PRIMARY),
                ColorUtils.getPrimaryColor(this, ColorUtils.ColorType.PRIMARY_DARK),
                presenter.getProgram() != null ? presenter.getProgram().featureType() != null ? presenter.getProgram().featureType() : FeatureType.NONE : FeatureType.NONE
        );
        MapLayerManager.Companion.instance().showEnrollmentLayer().observe(this, show -> {
            if (show)
                presenter.getEnrollmentMapData();
        });
    } else {
        MapLayerManager.Companion.instance().updateStyle(style);
    }
    map.addOnMapClickListener(this);

    style.addImage("ICON_ID", MarkerUtils.INSTANCE.getMarker(this, presenter.getSymbolIcon(), presenter.getTEIColor()));
    style.addImage("ICON_ENROLLMENT_ID", MarkerUtils.INSTANCE.getMarker(this, presenter.getEnrollmentSymbolIcon(), presenter.getEnrollmentColor()));

    setSource(style, teiFeatureCollection);

    setLayer(style);

    LatLngBounds bounds = LatLngBounds.from(bbox.north(),
            bbox.east(),
            bbox.south(),
            bbox.west());

    MapboxExtensionKt.initDefaultCamera(map, this, bounds);

    if (markerViewManager == null) {
        markerViewManager = new MarkerViewManager(binding.mapView, map);
    }

    if (symbolManager == null) {
        symbolManager = new SymbolManager(binding.mapView, map, style, null,
                new GeoJsonOptions().withTolerance(0.4f));

        symbolManager.setIconAllowOverlap(true);
        symbolManager.setTextAllowOverlap(true);
        symbolManager.setIconIgnorePlacement(true);
        symbolManager.setTextIgnorePlacement(true);
        symbolManager.setSymbolPlacement("line-center");
        symbolManager.create(teiFeatureCollection.get("TEI"));
    }
}
 

private void animateCameraBbox(LatLngBounds bounds, int animationTime, int[] padding) {
  CameraPosition position = mapboxMap.getCameraForLatLngBounds(bounds, padding);
  mapboxMap.animateCamera(CameraUpdateFactory.newCameraPosition(position), animationTime);
}
 

private void animateCameraBbox(LatLngBounds bounds, int animationTime, int[] padding) {
    CameraPosition position = mapboxMap.getCameraForLatLngBounds(bounds, padding);
    mapboxMap.animateCamera(CameraUpdateFactory.newCameraPosition(position), animationTime);
}
 

@Override
public void onPostExecuteGeocodingSearch(List<GeocodingLocation> locations) {
    clearGeocodingResults();
    markers = new ArrayList<>(locations.size());

    if (locations.isEmpty()) {
        onError(R.string.error_geocoding_no_location);
        return;
    }

    List<LatLng> bounds = new ArrayList<>();
    Location lastKnownLocation = getLastKnownLocation();
    if (lastKnownLocation != null)
        bounds.add(new LatLng(lastKnownLocation.getLatitude(), lastKnownLocation.getLongitude()));

    for (GeocodingLocation location : locations) {
        GeocodingPoint point = location.getPoint();
        MarkerOptions markerOptions = new MarkerOptions();
        LatLng latLng = new LatLng(point.getLat(), point.getLng());
        markerOptions.position(latLng);
        bounds.add(latLng);
        markerOptions.title(location.getName());
        String snippet = "";
        if (location.getStreet() != null) {
            snippet += location.getStreet();
            if (location.getHousenumber() != null)
                snippet += " " + location.getHousenumber();
            snippet += "\n";
        }
        if (location.getCity() != null) {
            if (location.getPostcode() != null)
                snippet += location.getPostcode() + " ";
            snippet += location.getCity() + "\n";
        }
        if (location.getCountry() != null)
            snippet += location.getCountry() + "\n";
        if (location.getOsmId() != null) {
            snippet += "OSM-Id: " + location.getOsmId() + "\n";
            if (location.getOsmKey() != null)
                snippet += "OSM-Key: " + location.getOsmKey() + "\n";
            if (location.getOsmType() != null)
                snippet += "OSM-Type: " + location.getOsmType() + "\n";
        }
        snippet += "\n\n Tap on info window\n to add point to route";
        if (!snippet.isEmpty())
            markerOptions.snippet(snippet);
        markerOptions.icon(IconFactory.getInstance(this.getApplicationContext()).fromResource(R.drawable.ic_map_marker));
        markers.add(mapboxMap.addMarker(markerOptions));
    }

    // For bounds we need at least 2 entries
    if (bounds.size() >= 2) {
        LatLngBounds.Builder boundsBuilder = new LatLngBounds.Builder();
        boundsBuilder.includes(bounds);
        animateCameraBbox(boundsBuilder.build(), CAMERA_ANIMATION_DURATION, padding);
    } else if (bounds.size() == 1) {
        // If there is only 1 result (=>current location unknown), we just zoom to that result
        animateCamera(bounds.get(0));
    }
    hideLoading();
}
 

@Nullable
public abstract LatLngBounds startingBounds();
 

@Override
public LatLngBounds getLatLngBoundsForZoom() {
    Analytics.logDebug("center", center.toString());
    Analytics.logDebug("points", TextUtils.join(" - ", points));
    return new LatLngBounds.Builder().includes(points).build();
}
 

/**
 * Construct a new MapLocale instance by passing in a LatLngBounds object.
 *
 * @param countryBounds non-null {@link LatLngBounds} object which wraps around the country
 * @since 0.1.0
 */
public MapLocale(@NonNull LatLngBounds countryBounds) {
  this(LOCAL_NAME, countryBounds);
}
 

/**
 * /**
 * Construct a new MapLocale instance using one of the map languages found in {@link Languages}
 * and also passing in a LatLngBounds object.
 *
 * @param mapLanguage   a non-null string which is allowed from {@link Languages}
 * @param countryBounds {@link LatLngBounds} object which wraps around the country
 * @since 0.1.0
 */
public MapLocale(@NonNull @Languages String mapLanguage, @Nullable LatLngBounds countryBounds) {
  this.countryBounds = countryBounds;
  this.mapLanguage = mapLanguage;
}
 

/**
 * Returns a {@link LatLngBounds} which represents the viewport bounds which allow for the entire
 * viewing of a country within the devices viewport.
 *
 * @return a {@link LatLngBounds} which can be used when user locations unknown but locale is
 * @since 0.1.0
 */
@Nullable
public LatLngBounds getCountryBounds() {
  return countryBounds;
}
 

/**
 * Define the map's starting camera position by providing a bounding box
 *
 * @return the bounding box which is where the {@link OfflineActivity} initial map's camera
 * position will be placed
 * @since 0.2.0
 */
@Nullable
public abstract LatLngBounds startingBounds();
 

/**
 * Define the map's starting camera position by providing a bounding box
 *
 * @param bounds the bounding box which is where the {@link OfflineActivity} initial map's camera
 *               position will be placed
 * @return this builder for chaining options together
 * @since 0.2.0
 */
public abstract Builder startingBounds(@NonNull LatLngBounds bounds);