# Projection plane

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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## ReferencesEdit

**^**Gary R. Bertoline et al. (2002)*Technical Graphics Communication*. McGraw–Hill Professional, 2002. ISBN 0-07-365598-8, p. 330.