Class MapProjectionHandle

[asyncDispose]

[dispose]

close

• close(): void

  Releases a standalone projection.

  See mln_map_projection_release in the C API reference.

  Returns void

getCamera

• getCamera(): CameraOptions

  Copies the projection camera into out_camera.

  See mln_map_projection_get_camera in the C API reference.

  Returns CameraOptions

latLngForPixel

• latLngForPixel(point?: ScreenPoint): LatLng

  Converts a screen point to a geographic coordinate.

  See mln_map_projection_lat_lng_for_pixel in the C API reference.

  Parameters

  • point: ScreenPoint = {}

  Returns LatLng

latLngForPixelUnwrapped

• latLngForPixelUnwrapped(point?: ScreenPoint): LatLng

  Converts a screen point to an unwrapped geographic coordinate.

  See mln_map_projection_lat_lng_for_pixel_unwrapped in the C API reference.

  Parameters

  • point: ScreenPoint = {}

  Returns LatLng

latLngsForPixels

• latLngsForPixels(points: readonly ScreenPoint[]): readonly LatLng[]

  Converts screen points to geographic coordinates.

  See mln_map_projection_lat_lngs_for_pixels in the C API reference.

  Parameters

  • points: readonly ScreenPoint[]

  Returns readonly LatLng[]

latLngsForPixelsUnwrapped

• latLngsForPixelsUnwrapped(points: readonly ScreenPoint[]): readonly LatLng[]

  Converts screen points to unwrapped geographic coordinates.

  See mln_map_projection_lat_lngs_for_pixels_unwrapped in the C API reference.

  Parameters

  • points: readonly ScreenPoint[]

  Returns readonly LatLng[]

metersPerPixelAtLatitude

• metersPerPixelAtLatitude(latitude: number): number

  Reads the ground distance covered by one logical map pixel at a latitude for the helper camera zoom.

  See mln_map_projection_meters_per_pixel_at_latitude in the C API reference.

  Parameters

  • latitude: number

  Returns number

pixelForLatLng

• pixelForLatLng(coordinate?: LatLng): ScreenPoint

  Converts a geographic coordinate to a screen point.

  See mln_map_projection_pixel_for_lat_lng in the C API reference.

  Parameters

  • coordinate: LatLng = {}

  Returns ScreenPoint

pixelsForLatLngs

• pixelsForLatLngs(coordinates: readonly LatLng[]): readonly ScreenPoint[]

  Converts geographic coordinates to screen points.

  See mln_map_projection_pixels_for_lat_lngs in the C API reference.

  Parameters

  • coordinates: readonly LatLng[]

  Returns readonly ScreenPoint[]

setCamera

• setCamera(camera?: CameraOptions): void

  Applies a camera update to a standalone projection.

  See mln_map_projection_set_camera in the C API reference.

  Parameters

  • camera: CameraOptions = {}

  Returns void