orthographic projection

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orthographic projection

n
1. (General Engineering) 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. (Physical Geography) 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

orthograph′ic projec′tion


n.
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 orthog′onal projec′tion. Compare isometric (def. 4).
[1660–70]

orthographic projection

a rendering of an object or floor plan of a building in scale as viewed perpendicularly from above. Cf. isometric projection.
See also: Drawing
References in periodicals archive ?
The mathematical procedure used to extract actual measurements from a perspectival image, known today as photogrammetry, has been known since at least the early seventeenth century: See Filippo Camerota, '"The Eye of the Sun': Galileo and Pietro Accolti on Orthographic Projections," in Perspective, Projections & Design: Technologies of Architectural Representation, ed.
Cardboard prototyping is intriguing for its simplicity in helping students to fully gain a deep understanding for how complex mechanical objects are designed and created from orthographic projections.
The map projections began with ill-considered choices such as the Mercator projection and were later replaced by map projections better suited for eclipses, such as the stereographic and orthographic projections.
They make a strong but important point in the particularly comprehensive discussion of orthographic projections as the basis for all drawings.
Shaw (2001) found that students had trouble in understanding orthographic projections than isometric projections.
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.
The programmer can spin and inspect the part solid on the screen without trying to visualize it from orthographic projections.
The students have to create virtual 3-D models and angle orthographic projections of the top, side, and end elevation of their cars.
Pupils will be given a brief to design a futuristic F-1 car, using PTC's Pro/DESKTOP software package, in addition to producing supporting evidence of their concept such as orthographic projections, colour isometric drawings and three-dimensional rendering.