mercantile

package

v2.0.0+incompatible Latest Latest Go to latest Published: Sep 15, 2018 License: MIT Imports: 1 Imported by: 6

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func Xy(lngLat LngLat) (x, y float64)

Xy returns the Spherical Mercator (x, y) in meters

type Bbox struct {
	Left   float64
	Bottom float64
	Right  float64
	Top    float64
}

Bbox stores a web mercator bounding box, for which tiles should be downloaded.

func XyBounds(tile TileID) Bbox

XyBounds returns the Spherical Mercator bounding box of a tile

type LngLat struct {
	Lng float64
	Lat float64
}

LngLat represents point in space (lng, lat)

func Ul(tile TileID) LngLat

Ul returns the upper left (lon, lat) of a tile

type TileID struct {
	X int
	Y int
	Z int
}

TileID represents id of the tile in (x, y, z) format.

func Tile(lng float64, lat float64, zoom int) TileID

Tile get the tile containing a longitude and latitude.

func Tiles(west, south, east, north float64, zooms []int) []TileID

Tiles get the tiles intersecting a geographic bounding box.