Orthographic projection

Increasing the focal length and distance of the camera to infinity in a perspective projection results in an orthographic projection.

Orthographic projection is a way of showing a 3D object in 2D. It is a form of parallel projection, where the view direction is orthogonal to the projection plane.

Orthographic Projection Media

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  Comparison of several types of graphical projection

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  Various projections and how they are produced

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  The three views. The percentages show the amount of foreshortening.

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  Symbols used to define whether a multiview projection is either third-angle (right) or first-angle (left).

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  Orthographic projection (equatorial aspect) of eastern hemisphere 30°W–150°E

Other websites

• Educational website describing the principles of first and third angle projection – University of Limerick