ok_proj6: Is 'PROJ library >= 6' available

In PROJ: Generic Coordinate System Transformations Using 'PROJ'

Is 'PROJ library >= 6' available

Description

Test for availability of 'PROJ' system library version 6 or higher.

Usage

ok_proj6()

Details

On unix-alikes, this function is run in .onLoad() to check that version 6 functionality is available. On Windows, the load process sets the data file location with the version 6 API, and that is used as a test instead.

If 'PROJ' library version 6 is not available, the package still compiles and installs but is not functional.

The lack of function can be simulated by setting options(reproj.mock.noproj6 = TRUE), designed for use with the reproj package.

Value

logical, TRUE if the system library 'PROJ >= 6'

Examples

ok_proj6()

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