wk_crs_proj_definition: CRS object generic methods

In wk: Lightweight Well-Known Geometry Parsing

CRS object generic methods

Description

CRS object generic methods

Usage

wk_crs_proj_definition(crs, proj_version = NULL, verbose = FALSE)

wk_crs_projjson(crs)

## S3 method for class ''NULL''
wk_crs_proj_definition(crs, proj_version = NULL, verbose = FALSE)

## S3 method for class 'wk_crs_inherit'
wk_crs_proj_definition(crs, proj_version = NULL, verbose = FALSE)

## S3 method for class 'character'
wk_crs_proj_definition(crs, proj_version = NULL, verbose = FALSE)

## S3 method for class 'double'
wk_crs_proj_definition(crs, proj_version = NULL, verbose = FALSE)

## S3 method for class 'integer'
wk_crs_proj_definition(crs, proj_version = NULL, verbose = FALSE)

Arguments

crs	An arbitrary R object
proj_version	A package_version() of the PROJ version, or NULL if the PROJ version is unknown.
verbose	Use TRUE to request a more verbose version of the PROJ definition (e.g., PROJJSON). The default of FALSE should return the most compact version that completely describes the CRS. An authority:code string (e.g., "OGC:CRS84") is the recommended way to represent a CRS when verbose is FALSE, if possible, falling back to the most recent version of WKT2 or PROJJSON.

Value

• wk_crs_proj_definition() Returns a string used to represent the CRS in PROJ. For recent PROJ version you'll want to return PROJJSON; however you should check proj_version if you want this to work with older versions of PROJ.

• wk_crs_projjson() Returns a PROJJSON string or NA_character_ if this representation is unknown or can't be calculated.

Examples

wk_crs_proj_definition("EPSG:4326")

wk documentation built on Oct. 22, 2023, 9:07 a.m.