proj-string: +proj=labrd +lon_0=40 +lat_0=-10
+proj=labrd +lon_0=40 +lat_0=-10
+lon_0
=<value>
Longitude of projection center.
Defaults to 0.0.
+lat_0
Latitude of projection center.
+azi
Azimuth of the central line.
Defaults to 0.0
+R
Radius of the sphere given in meters. If used in conjunction with +ellps +R takes precedence.
+ellps
+x_0
False easting.
+y_0
False northing.