LonLat2XY function

Convert a lon/lat coordinate to a tile coordinate

Convert a lon/lat coordinate to a tile coordinate for a given zoom. Decimal tile coordinates (x, y) are reported.

LonLat2XY(lon_deg, lat_deg, zoom, xpix = 256, ypix = 256)

Arguments

• lon_deg: longitude in degrees
• lat_deg: latitude in degrees
• zoom: zoom
• xpix: width of tile in pixels
• ypix: length of tile in pixels

Returns

a data frame with columns X, Y, x, y

Examples

## Not run:

gc <- geocode('baylor university')
LonLat2XY(gc$lon, gc$lat, 10)
## End(Not run)

See Also

https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames

Author(s)

David Kahle david@kahle.io , based on RgoogleMaps::LatLon2XY() by Markus Loecher of Sense Networks markus@sensenetworks.com