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Projection plane
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<p>A projection plane, or plane of projection, is a type of view in which graphical projections from an object intersect. Projection planes are used often in <a href="/facts/Descriptive_geometry/YbHHQeTI">descriptive geometry</a> and graphical representation. A <a href="/facts/Picture_plane/Kxj1ztBe">picture plane</a> in <a href="/facts/Perspective_drawing/zkNx7Wpf">perspective drawing</a> is a type of projection plane. </p><p>With perspective drawing, the lines of sight, or projection lines, between an object and a picture plane return to a <a href="/facts/Vanishing_point/5cVeKuIK">vanishing point</a> and are not parallel. With <a href="/facts/Parallel_projection/QhSERFh6">parallel projection</a> the lines of sight from the object to the projection plane are parallel. </p>