Eckert IV¶
\[x = \lambda(1+cos\phi) / \sqrt{ 2 + \pi }\]
\[y = 2 \phi / \sqrt { 2 + \pi }\]
Parameters¶
Note
All parameters are optional for the Eckert IV projection.
-
+lon_0
=<value>
¶ Longitude of projection center.
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.