orthographic projection

American  

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.

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orthographic projection British  

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

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Etymology

Origin of orthographic projection

First recorded in 1660–70

Example Sentences

Architectural and mechanical drawings are those in which the proportions of a building, machine, &c., are accurately set out for the guidance of the constructor; objects are, in general, delineated by geometric or orthographic projection.

From The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde by Various

At the same time the plan is an orthographic projection of the plane α.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various

An orthographic projection of the sphere on the plane of the meridian, the eye being supposed at an infinite distance, and in the east or west point of the horizon.

From Webster's Unabridged Dictionary by Webster, Noah

It is therefore often called drawing in plan and elevation, and sometimes simply orthographic projection.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various

It is assumed that the student has already learnt to draw to scale, and that he can draw two or more views of the same object in simple or orthographic projection.

From An Introduction to Machine Drawing and Design by Low, David Allan