R: computes the centered coordinate transformation from lat/lon...

LatLon2XY.centered {RgoogleMaps} | R Documentation

## 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

### Author(s)

Markus Loecher

### See Also

LatLon2XY Tile2R

[Package RgoogleMaps version 1.4.1 Index]