Learn R Programming

spsurvey (version 4.1.4)

albersgeod: Project Albers Projection in Plane to Latitude and Longitude (Spheroid)

Description

Convert x-coordinates and y-coordinates given in Albers projection to latitude and longitude in Clarke1866, GRS80 or WGS84 spheriod with specified parameters.

Usage

albersgeod(x, y, sph = "GRS80", clon = -96, clat = 23, sp1 = 29.5,
  sp2 = 45.5)

Arguments

x

Vector of Albers x-coordinates to be projected to latitude/longitude.

y

Vector of Albers y-coordinates to be projected to latitude/longitude.

sph

Spheroid options: Clarke1866, GRS80, WGS84. The default is GRS80.

clon

Center longitude (decimal degrees). The default is -96.

clat

Origin latitude (decimal degrees). The default is 23.

sp1

Standard parallel 1 (decimal degrees). The default is 29.5.

sp2

Standard parallel 2 (decimal degrees). The default is 45.5.

Value

A data frame of latitude and longitude projections for Albers x-coordinates and y-coordinates

References

J. Snyder, USGS Professional Paper 1395.