Tilted perspective

Classification

Azimuthal

Available forms

Forward and inverse, spherical projection

Defined area

Global

Implemented by

Gerald I. Evenden

Options

+h

Height (in meters) above the surface. Required.

+azi

Bearing (in degrees) from due north.

+tilt

Angle (in degrees) away from nadir.

+lat_0

Latitude (in degrees) of the view position.

+lon_0

Longitude (in degrees) of the view position.

Tilted perspective

Tilted Perspective is similar to Near-sided perspective (nsper) in that it simulates a perspective view from a hight. Where nsper projects onto a plane tangent to the surface, Tilted Perspective orients the plane towards the direction of the view. Thus, extra parameters azi and tilt are required beyond nsper`’s h. As with nsper, lat_0 & lon_0 are also required for satellite position.