Class HereMapsProvider

Here maps tile server provider.

API Reference

Hierarchy

Constructors

constructor

Properties

appCode appId bounds center format maxZoom minZoom name scheme server size style version PATH

Methods

fetchTile getMetaData nextServer

Constructors

constructor

  • Here maps provider constructor.

    Parameters

    • appId: string = ''

      HERE maps app id.

    • appCode: string = ''

      HERE maps app code.

    • style: string = 'base'

      Map style.

    • scheme: string = 'normal.day'

      Map scheme.

    • format: string = 'png'

      Image format.

    • size: number = 512

      Tile size.

    Returns HereMapsProvider

Properties

appCode

appCode: string

Service application code token.

appId

appId: string

Service application access token.

bounds

bounds: number[] = []

Map bounds.

center

center: number[] = []

Map center point.

format

format: string

Map image tile format, the formats available are:

  • png True color PNG
  • png8 8 bit indexed PNG
  • jpg JPG at 90% quality

maxZoom

maxZoom: number = 20

Maximum tile level.

minZoom

minZoom: number = 0

Minimum tile level.

name

name: string = ''

Name of the map provider

scheme

scheme: string

Specifies the view scheme. A complete list of the supported schemes may be obtained by using the Info resouce.

  • normal.day
  • normal.night
  • terrain.day
  • satellite.day

Check the scheme list at https://developer.here.com/documentation/map-tile/topics/resource-info.html

Be aware that invalid combinations of schemes and tiles are rejected. For all satellite, hybrid and terrain schemes, you need to use the Aerial Tiles base URL instead of the normal one.

server

server: number

Server to be used next.

There are 4 server available in here maps.

On each request this number is updated.

size

size: number

Returned tile map image size.

The following sizes are supported:

  • 256
  • 512
  • 128 (deprecated, although usage is still accepted)

style

style: string

The type of maps to be used.

  • aerial
  • base
  • pano
  • traffic

For each type HERE maps has 4 servers:

  • Aerial Tiles https://{1-4}.aerial.maps.api.here.com
  • Base Map Tiles https://{1-4}.base.maps.api.here.com
  • Pano Tiles https://{1-4}.pano.maps.api.here.com
  • Traffic Tiles https://{1-4}.traffic.maps.api.here.com

version

version: string

Specifies the map version, either newest or with a hash value.

Static PATH

PATH: string = '/maptile/2.1/'

Path to map tile API.

Version of the api is fixed 2.1.

Methods

fetchTile

  • Get a tile for the x, y, zoom based on the provider configuration.

    The tile should be returned as a image object, compatible with canvas context 2D drawImage() and with webgl texImage2D() method.

    Returns

    Promise with the image obtained for the tile ready to use.

    Parameters

    • zoom: number

      Zoom level.

    • x: number

      Tile x.

    • y: number

      Tile y.

    Returns Promise<any>

getMetaData

nextServer

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