lv95-converter is a command line tool used to convert Swiss LV95 coordinates to WGS84 and vice-versa. The formulas used are the ones provided by Swisstopo as described in their document Formulas and constants for the calculation of the Swiss conformal cylindrical projection and for the transformation between coordinate systems. To parse the command-line arguments CLI11 by CLIUtils was used.

To install lv95-converter you can either build it from source or download a package from the latest release.

Install dependency:

• cli11

1. Download the latest tarball and extract it.
2. Execute meson setup build from inside the source directory to setup the project.
3. Execute meson compile -C build from inside the source directory to build the executable.
4. Execute meson install -C build from inside the source directory to install the executable and the manpage.

To convert LV95 to WGS84 pass the lv95 subcommand to the program and use the -e and the -n flag respectively to input LV95 coordinates.

To convert WGS84 to LV95 pass the wgs84 subcommand to the program and use the -n and the -e flag respectively to input WGS84 coordinates.

$ lv95-converter --help

Convert LV95 coordinates to WGS84 and vice-versa
Usage: lv95-converter [OPTIONS] SUBCOMMAND

Options:
  -h,--help                   Print this help message and exit

Subcommands:
  lv95                        convert LV95 to WGS84
  wgs84                       convert WGS84 to LV95

$ lv95-converter lv95 --help

convert LV95 to WGS84
Usage: lv95-converter lv95 [OPTIONS]

Options:
  -h,--help                   Print this help message and exit
  -e,--east FLOAT REQUIRED    Easting coordinate (LV95)
  -n,--north FLOAT REQUIRED   Northing coordinate (LV95)

$ lv95-converter wgs84 --help

convert WGS84 to LV95
Usage: lv95-converter wgs84 [OPTIONS]

Options:
  -h,--help                   Print this help message and exit
  -e,--east FLOAT REQUIRED    Easting coordinate in WGS84
  -n,--north FLOAT REQUIRED   Northing coordinate in WGS84