Laborde

Classification	Cylindrical
Available forms	Forward and inverse, spherical and ellipsoidal
Defined area	Global, but more accurate around Madagascar
Alias	labrd
Domain	2D
Input type	Geodetic coordinates
Output type	Projected coordinates

proj-string: +proj=labrd +lon_0=40 +lat_0=-10

Parameters

Required

+lon_0=<value>

Longitude of projection center.

Defaults to 0.0.

+lat_0=<value>

Latitude of projection center.

Defaults to 0.0.

Optional

+azi=<value>

Azimuth of the central line.

Defaults to 0.0

+R=<value>

Radius of the sphere given in meters. If used in conjunction with +ellps +R takes precedence.

+x_0=<value>

False easting.

Defaults to 0.0.

+y_0=<value>

False northing.

Defaults to 0.0.