Editing Plücker coordinates (section)

=== Line geometry ===
During the nineteenth century, ''line geometry'' was studied intensively. In terms of the bijection given above, this is a description of the intrinsic geometry of the Klein quadric.

==== Ray tracing ====
Line geometry is extensively used in [[Ray tracing (graphics)|ray tracing]] application where the geometry and intersections of rays need to be calculated in 3D. An implementation is described in
[http://www.flipcode.com/archives/Introduction_To_Plcker_Coordinates.shtml Introduction to Plücker Coordinates] written for the Ray Tracing forum by Thouis Jones.