Eckert I

proj-string: +proj=eck1

\[ \begin{align}\begin{aligned}x &= 2 \sqrt{2/3\pi} \lambda (1- |\phi|/\pi)\\y &= 2 \sqrt{2/3\pi}\phi\end{aligned}\end{align} \]

Parameters

Note

All parameters are optional for the Eckert I 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.