LatLon2XY function

computes the coordinate transformation from lat/lon to map tile coordinates

The function LatLon2XY(lat,lon,zoom) computes the coordinate transformation from lat/lon to map tile coordinates given a zoom level. It returns the tile coordinates as well as the pixel coordinates within the Tile itself.

LatLon2XY(lat, lon, zoom)

Arguments

• lat: latitude values to transform
• lon: longitude values to transform
• zoom: zoom level.lat,lon,zoom

Returns

A list with values - Tile: integer numbers specifying the tile

• Coords: pixel coordinate within the Tile

Author(s)

Markus Loecher

Note

The fractional part times 256 is the pixel coordinate within the Tile itself.

Examples

LatLon2XY(38.45, -122.375, 11)