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
Near-sided perspective

proj-string: +proj=nsper +h=3000000 +lat_0=-20 +lon_0=145




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.



Longitude of projection center.

Defaults to 0.0.


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


False easting.

Defaults to 0.0.


False northing.

Defaults to 0.0.