Vertical Perspective – Global Mapper

The Vertical Perspective projection represents a view of the Earth from space in which the view is from a point precisely facing the center of the Earth. This projection is therefore used to generate pictoral views of the Earth resembling those seen from space. It is an azimuthal projection that is neither conformal nor equal area. The central meridian and a particular parallel (if shown) are straight lines. Other meridians and parallels are usually arcs of circles or ellipses, but some may be parabolas or hyperbolas. If the point of perspective is above the sphere, less than one hemisphere may be shown.

The "VerticalPerspective" Projection has the following Parameters:

Parameter Name	Parameter String	Units
Longitude of the Center of the Projection	central_meridian	AngularValue
Latitude of the Center of the Projection	latitude_of_origin	AngularValue
False Easting	false_easting	LinearValue
False Northing	false_northing	LinearValue
Height	height	LinearValue

NOTE: Only a spherical form of this projection is used. The semi-major axis of the ellipsoid (sphere) is used for forward and inverse projection from grid to geodetic coordinates within the system wherein this projection is incorporated.