Projection plane
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| File:Axonometric projection.svg |
A projection plane, or plane of projection, is a type of view in which graphical projections from an object intersect.[1] Projection planes are used often in descriptive geometry and graphical representation. A picture plane in perspective drawing is a type of projection plane.
With perspective drawing, the lines of sight, or projection lines, between an object and a picture plane return to a vanishing point and are not parallel. With parallel projection the lines of sight from the object to the projection plane are parallel.
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Perspective projection of triangle ABC on plane Π from point S.
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Axonometric projection on projection plane Π
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A cube in two-point perspective
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Simulated rays of light travel from the object, through the projection plane, and to the viewer's eye or camera. This is the basis for graphical perspective.
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Various graphical projections and how they are produced
See also
[edit | edit source]References
[edit | edit source]- ^ Gary R. Bertoline et al. (2002) Technical Graphics Communication. McGraw–Hill Professional, 2002. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)., p. 330.