geoChina (version 1.3.0)

gcj2bd: Convert coordinates

Description

converts lat/lon coordintes from GCJ-02 to BD-09

Usage

gcj2bd(gcjLat, gcjLon)

Arguments

gcjLat

a numeric latitude in GCJ-02

gcjLon

a numeric longitude in GCJ-02

Value

a data.frame with variables lat/lng

Details

BD-09 coordinate system is used by Baidu Maps and further encrypted based on GCJ-02 coordinates.

See Also

bd2gcj, conv. http://blog.csdn.net/coolypf/article/details/8569813 for C version source code.

Examples

## Not run: ------------------------------------
# # latitude/longitude coordinates of Beijing railway station
# # GCJ-02: (39.90245, 116.42703)
# # BD-09:  (39.90851, 116.43351)
# gcj2bd(39.90245, 116.42703) # correct
# # convert multiple coordinates
# gcj2bd(c(39.99967, 39.98691), c(116.3264, 116.3059))
## ---------------------------------------------