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In perspective projection, all lines of sight start at a ________ point.(a) double(b) triple(c) multiple(d) singleI had been asked this question during an online interview.My question comes from Perspective Projection topic in section Development of Surfaces, Isometric Projections, Perspective Projections & Transformation of Projections of Civil Engineering Drawing

Answer» CORRECT choice is (d) single

The best explanation: When the human eye looks at a scene, objects in the distance appear SMALLER than objects close by. Orthographic projection ignores this effect to allow the creation of to-scale DRAWINGS for construction and engineering.

Orthographic projections are a small set of transforms often used to show profile, detail or PRECISE MEASUREMENTS of a three dimensional object. Common names for orthographic projections include plane, cross-section, bird’s-eye, and elevation.


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