# 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 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.