Show Navigation | Hide Navigation
You are here:
Map projections and coordinate systems > Supported map projections


Release 9.2
Last modified August 3, 2007
E-mail This Topic Printable Version Give Us Feedback

Print all topics in : "Supported map projections"

Related Topics


This perspective projection views the globe from an infinite distance. This gives the illusion of a three-dimensional globe. Distortion in size and area near the projection limit appears more realistic than almost any other projection, except the Vertical Near-Side Perspective.

Illustration of the Orthographic projection

Projection method

Planar perspective projection, viewed from infinity. On the polar aspect, meridians are straight lines radiating from the center, and the lines of latitude are projected as concentric circles that become closer toward the edge of the globe. Only one hemisphere can be shown without overlapping.

Point of contact

A single point located anywhere on the globe.

Linear graticules



Minimal distortion near the center; maximal distortion near the edge.


The areal scale decreases with distance from the center. Areal scale is zero at the edge of the hemisphere.


True direction from the central point.


The radial scale decreases with distance from the center and becomes zero on the edges. The scale perpendicular to the radii, along the parallels of the polar aspect, is accurate.


Limited to a view 90° from the central point, a global hemisphere.

Uses and applications

Uses of this projection are aesthetic more than technical. The most commonly used aspect for this purpose is the oblique.




Please visit the Feedback page to comment or give suggestions on ArcGIS Desktop Help.
Copyright © Environmental Systems Research Institute, Inc.