Orthographic Projection


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orthographic projection

[¦ȯr·thə¦graf·ik prə′jek·shən]
(crystallography)
A projection for displaying the poles of a crystal in which the poles are projected from a reference sphere onto an equatorial plane by dropping perpendiculars from the poles to the plane.
(graphic arts)
(mapping)
A perspective azimuthal projection of one hemisphere produced by straight parallel lines from any point desired from an infinite distance; it is true to scale at the center only.
(mathematics)

orthographic projection

A method of projection in which a three-dimensional object is represented by projecting lines perpendicular to a picture plane. See also: Projection drawing

Orthographic Projection

 

a perspective cartographic projection. Because of considerable distortions, it is not used in cartography.

orthographic projection

Projection in which exact views of an object are constructed by extending perpendiculars from points on the object to the plane of projection.
References in periodicals archive ?
The engineering drawing language as it applies in their industry, including the detailed use of orthographic projection, and be proficient in its use to communicate an unambiguous detailed engineering specification of a product.
This program takes industry-standard blueprints, showing a part in 3 view orthographic projection in CAD format and constructs a 3D wireframe model of the part.
Zona could then automatically pump out 2D floor plans, elevations, sections and orthographic projections for the builders.
Recognizing the explosion of digital tools since the first edition, this third edition provides current information on CAD rendering and digital and Web-based portfolios, and contains new material on orthographic projections and drafting.