RgoogleMaps (version 1.0)

LatLon2XY.centered: computes the centered coordinate transformation from lat/lon to map tile coordinates

Description

The function LatLon2XY.centered(MyMap, lat,lon,zoom) computes the coordinate transformation from lat/lon to map tile coordinates given a map object.

Usage

LatLon2XY.centered(MyMap, lat, lon, zoom)

Arguments

MyMap

map object

lat

latitude values to transform

lon

longitude values to transform

zoom

optional zoom level. If missing, taken from MyMap

Value

• properly scaled and centered (with respect to the center of MyMap ) coordinates
• newX
  transformed longitude
• newY
  transformed latitude

See Also

LatLon2XY Tile2R