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orthographic projection

noun
1.
a two-dimensional graphic representation of an object in which the projecting lines are at right angles to the plane of the projection.
Also called orthogonal projection.
Compare isometric (def 5).
Origin
1660-1670
1660-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for orthographic projection

orthographic projection

noun
1.
a style of engineering drawing in which true dimensions are represented as if projected from infinity on three planes perpendicular to each other, avoiding the effects of perspective
2.
a type of zenithal map projection in which the area is mapped as if projected from infinity, with resulting distortion of scale away from the centre
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for orthographic projection

orthogonal projection

common method of representing three-dimensional objects, usually by three two-dimensional drawings, in each of which the object is viewed along parallel lines that are perpendicular to the plane of the drawing. For example, an orthographic projection of a house typically consists of a top view, or plan, and a front view and one side view (front and side elevations)

Learn more about orthogonal projection with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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23
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