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 |
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
+R
takes precedence.
-
+x_0
=<value>
¶ False easting.
Defaults to 0.0.
-
+y_0
=<value>
¶ False northing.
Defaults to 0.0.