+
+ +
+

Stereographic

+ ++++ + + + + + + + + + + + + + + + + + + + + + + + +

Classification

Azimuthal

Available forms

Forward and inverse, spherical and ellipsoidal

Defined area

Global

Alias

stere

Domain

2D

Input type

Geodetic coordinates

Output type

Projected coordinates

+
+Stereographic +
+

proj-string: +proj=stere +lat_0=90 +lat_ts=75

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+
+
+

Parameters

+
+

Note

+

All parameters are optional for the projection.

+
+
+
++lat_0=<value>
+

Latitude of projection center.

+

Defaults to 0.0.

+
+ +
+
++lat_ts=<value>
+

Defines the latitude where scale is not distorted. It is only taken into +account for Polar Stereographic formulations (+lat_0 = +/- 90 ), and +then defaults to the +lat_0 value. +If set to a value different from +/- 90, it takes precedence over +k_0 +if both options are used together.

+
+ +
+
++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.

+
+ +
+
++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.

+
+ +
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++x_0=<value>
+

False easting.

+

Defaults to 0.0.

+
+ +
+
++y_0=<value>
+

False northing.

+

Defaults to 0.0.

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+ +
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+ + +
+