proj-string: +proj=bonne +lat_1=10
+proj=bonne +lat_1=10
+lat_1
=<value>
First standard parallel.
Defaults to 0.0.
+lon_0
Longitude of projection center.
+ellps
See proj -le for a list of available ellipsoids.
proj -le
Defaults to “WGS84”.
+R
Radius of the sphere given in meters. If used in conjunction with +ellps +R takes precedence.
+x_0
False easting.
+y_0
False northing.