# Bertin 1953¶

New in version 6.0.0.

 Classification Miscellaneous Available forms Forward, spherical projection Defined area Global Alias bertin1953 Domain 2D Input type Geodetic coordinates Output type Projected coordinates

proj-string: +proj=bertin1953

The Bertin 1953 projection is intended for making world maps. Created by Jacques Bertin in 1953, this projection was the go-to choice of the French cartographic school when they wished to represent phenomena on a global scale. The projection was formulated in 2017 by Philippe Rivière for visionscarto.net.

## Usage¶

The Bertin 1953 projection has no special options. Its rotation parameters are fixed. Here is an example of a forward projection with scale 1:

\$ echo 122 47 | src/proj +proj=bertin1953 +R=1 0.72 0.73

## Parameters¶

Note

All parameters for the projection are optional.

+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.