Gauss-Schreiber Transverse Mercator (aka Gauss-Laborde Reunion)¶

Classification	Conformal
Available forms	Forward and inverse, spherical projection
Defined area	Global
Alias	gstmerc
Domain	2D
Input type	Geodetic coordinates
Output type	Projected coordinates

Parameters¶

Note

All parameters are optional for the projection.

+k_0=<value>¶

Scale factor. Determines scale factor used in the projection.

Defaults to 1.0.

+lon_0=<value>¶

Longitude of projection center.

Defaults to 0.0.

Note

The default convention is to interpret this value as decimal degrees. To specify radians instead, follow the value with the "r" character.

Example: +lon_0=1.570796r

See Projection Units for more information.

+lat_0=<value>¶

Latitude of projection center.

Defaults to 0.0.

Note

The default convention is to interpret this value as decimal degrees. To specify radians instead, follow the value with the "r" character.

Example: +lat_0=1.570796r

See Projection Units for more information.

+ellps=<value>¶

The name of a built-in ellipsoid definition.

See Ellipsoids for more information, or execute proj -le for a list of built-in ellipsoid names.

Defaults to "GRS80".

+R=<value>¶

Radius of the sphere, given in meters. If used in conjunction with +ellps, +R takes precedence.

See Ellipsoid size parameters for more information.

+x_0=<value>¶

False easting.

Defaults to 0.0.

+y_0=<value>¶

False northing.

Defaults to 0.0.