PROJ-package: PROJ: Generic Coordinate System Transformations Using 'PROJ'

In PROJ: Generic Coordinate System Transformations Using 'PROJ'

PROJ: Generic Coordinate System Transformations Using 'PROJ'

Description

A wrapper around the generic coordinate transformation software 'PROJ' that transforms coordinates from one coordinate reference system ('CRS') to another. This includes cartographic projections as well as geodetic transformations. The intention is for this package to be used by user-packages such as 'reproj', and that the older 'PROJ.4' and version 5 pathways be provided by the 'proj4' package.

The goal of PROJ is to provide generic coordinate system transformations in R without requiring bespoke formats for storing basic data.

I. Functions

ok_proj6 determine if PROJ version >=6 is available proj_trans a light wrapper around the underlying transformation functionality of PROJ version 6 (or higher) proj_crs_text generate PROJ crs strings from input proj_version report PROJ lib version if available and >= 6.3.1

Author(s)

Maintainer: Michael D. Sumner [e-mail] (ORCID)

Other contributors:

• Jeroen Ooms (provided PROJ library support on Windows, and assistance with Windows configuration) [contributor]

• Simon Urbanek (wrote original code versions for PROJ version 6) [copyright holder, contributor]

• Dewey Dunnington (key code contributions) [contributor]

• Anthony North [contributor]

See Also

Useful links:

• https://github.com/hypertidy/PROJ

• https://hypertidy.github.io/PROJ/

• Report bugs at https://github.com/hypertidy/PROJ/issues

PROJ documentation built on April 3, 2025, 9:23 p.m.