parallel projection

noun

, Geometry.

a projection from one plane to a second plane in which the lines joining points on the first plane and corresponding images are parallel.

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The results of parallel projection (see Projection, 17 and 18) may therefore now be used.

A parallel projection of a straight line is a straight line.

That a parallel projection of a parallelepiped is a parallelepiped.

A parallel projection of a pair of solids having a given ratio is a pair of solids having the same ratio.

A parallel projection of a curve, or of a surface of a given algebraical order, is a curve or a surface of the same order.

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