Prismatic surface
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Hexagonal_Prism_BC.svg/220px-Hexagonal_Prism_BC.svg.png)
In solid geometry, a prismatic surface is a polyhedral surface generated by all the lines that are parallel to a given line and that intersect a Polygonal chain in a plane that is not parallel to the given line.[1] The polygonal chain is the directrix of the surface; the parallel lines are its generators (or elements). If the directrix is a convex polygon, then the surface is a closed prismatic surface. The part of a closed prismatic surface between two parallel copies of the directrix is a prism.[2]
References
- v
- t
- e