inlabru (version 2.5.3)

fm_wkt_is_geocent: Handling CRS/WKT

Description

Get and set CRS object or WKT string properties.

Usage

fm_wkt_is_geocent(wkt)
fm_crs_is_geocent(crs)
fm_wkt_get_ellipsoid_radius(wkt)
fm_crs_get_ellipsoid_radius(crs)
fm_wkt_set_ellipsoid_radius(wkt, radius)
fm_crs_set_ellipsoid_radius(crs, radius)
fm_wkt_unit_params()
fm_wkt_get_lengthunit(wkt)
fm_wkt_set_lengthunit(wkt, unit, params = NULL)
fm_crs_get_wkt(crs)
fm_crs_get_lengthunit(crs)
fm_crs_set_lengthunit(crs, unit, params = NULL)

Value

For fm_wkt_unit_params, a list of named unit definitions

For fm_wkt_get_lengthunit, a list of length units used in the wkt string, excluding the ellipsoid radius unit.

For fm_wkt_set_lengthunit, a WKT2 string with altered length units. Note that the length unit for the ellipsoid radius is unchanged.

For fm_crs_get_wkt, WKT2 string.

For fm_crs_get_lengthunit, a list of length units used in the wkt string, excluding the ellipsoid radius unit. (For legacy PROJ4 code, the raw units from the proj4string are returned, if present.)

For fm_crs_set_lengthunit, a sp::CRS object with altered length units. Note that the length unit for the ellipsoid radius is unchanged.

Arguments

wkt

A WKT2 character string

crs

A sp::CRS or inla.CRS object

radius

numeric; The new radius value

unit

character, name of a unit. Supported names are "metre", "kilometre", and the aliases "meter", "m", International metre", "kilometer", and "km", as defined by fm_wkt_unit_params or the params argument. (For legacy PROJ4 use, only "m" and "km" are supported)

params

Length unit definitions, in the list format produced by fm_wkt_unit_params(), Default: NULL, which invokes fm_wkt_unit_params()

Author

Finn Lindgren

See Also

fm_sp_get_crs()

Examples

if (FALSE) {
if (fm_has_PROJ6()) {
  c1 <- fm_CRS("globe")
  fm_crs_get_lengthunit(c1)
  c2 <- fm_crs_set_lengthunit(c1, "km")
  fm_crs_get_lengthunit(c2)
}
}