A MapDescription object defines the metadata for a named map.
Fields
A MapDescription object contains the following fields:
| Field Name | Type | Description |
|---|---|---|
| numberOfLevels | Integer | The maximum number of levels (zoom in) that you can request for the map. Level 1 is the furthest away and is composed of one tile that the entire map will be drawn into. Level 2 is composed of 4 tiles, 2 across and 2 down. Each tile is a quarter of the entire map. Level 3 is composed of 16 tiles, 4 across and 4 down, and so on. The higher the level specified, the closer to the Earth the map image appears (zoom in). |
| coordSys | CoordSys | The coordinate system of the projection defining the map tiles. |
| description | String | A textural description of the named map. |
| name | String | The name of the named map. |
| tileWidth | Integer | The width of the tiles in pixels. |
| tileHeight | Integer | The height of the tiles in pixels. |
| bounds | Bounds object | The geographical extent of the map's bounding box in the map's projection as specified by the coordSys field. See Bounds. |
| outputTypes | Array of Strings | The list of supported tile image formats that can be rendered for the map. |
Example
{
"numberOfLevels": 20,
"coordSys": "epsg:41001",
"description": "Map of the World",
"name": "World",
"tileWidth": 256,
"tileHeight": 256,
"bounds":{
"minX": -3.756380109844111E7,
"minY": -4.497601034176671E7,
"maxX": 3.773376466605809E7
"maxY": 4.49763662218225E7,
},
"outputTypes":
[
"png"
"jpeg"
"gif"
"application/vnd.mapbox-vector-tile"
]
}