HK80-package {HK80} | R Documentation |
Conversion Tools for HK80 Geographical Coordinate System
Description
Conversion and Reverse Conversion between HK80 Geographical Coordinate System and WGS84 based Geographical Coordinate Systems.
Details
Package: | HK80 |
Type: | Package |
Version: | 0.0.2 |
Date: | 2016-07-26 |
License: | GPL-2 |
This package provides functions for converting the coordinates between WGS84UTM, WGS84GEO, HK80UTM, HK80GEO and HK1980GRID Coordinate Systems used in Hong Kong SAR, based on the algorithms described in Explanatory Notes on Geodetic Datums in Hong Kong by Survey and Mapping Office Lands Department, Hong Kong Government (1995).
Author(s)
Jinlong Zhang
Maintainer: Jinlong Zhang <jinlongzhang01@gmail.com>
References
Survey and Mapping Office Lands Department, Hong Kong Government (1995). Explanatory Notes on Geodetic Datums in Hong Kong, available at: http://www.geodetic.gov.hk/smo/gsi/data/pdf/explanatorynotes.pdf
Examples
### Conversion between HK1980GRID and WGS84UTM
options(digits = 15)
HK1980GRID_TO_WGS84UTM(820351.389, 832591.320)
#### $N
#### [1] 2471278.72371238
####
#### $E
#### [1] 205493.220852789
####
#### $zone
#### [1] 50
#### Answer from the online conversion tool
#### at: http://www.geodetic.gov.hk/smo/tform/tform.aspx
#### 2471279, 205494
[Package HK80 version 0.0.2 Index]