Near-sided perspective¶
The near-sided perspective projection simulates a view from a height \(h\) similar to how a satellite in orbit would see it.
Classification |
Azimuthal. Neither conformal nor equal area. |
Available forms |
Forward and inverse spherical projection |
Defined area |
Global, although for one hemisphere at a time. |
Alias |
nsper |
Domain |
2D |
Input type |
Geodetic coordinates |
Output type |
Projected coordinates |
Parameters¶
Required¶
-
+h
=<value>
¶ Height of the view point above the Earth and must be in the same units as the radius of the sphere or semimajor axis of the ellipsoid.
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.