Orthographic¶
The orthographic projection is a perspective azimuthal projection centered around a given latitude and longitude.
Classification |
Azimuthal |
Available forms |
Forward and inverse, spherical projection |
Defined area |
Global, although only one hemisphere can be seen at a time |
Alias |
ortho |
Domain |
2D |
Input type |
Geodetic coordinates |
Output type |
Projected coordinates |
proj-string: +proj=ortho¶
Parameters¶
Note
All parameters for the projection are optional.
- +lon_0=<value>¶
Longitude of projection center.
Defaults to 0.0.
- +lat_0=<value>¶
Latitude of projection center.
Defaults to 0.0.
- +R=<value>¶
Radius of the sphere given in meters. If used in conjunction with
+ellps+Rtakes precedence.
- +x_0=<value>¶
False easting.
Defaults to 0.0.
- +y_0=<value>¶
False northing.
Defaults to 0.0.