sshirokov/csgtool — pull request #57 by sshirokov (2014-08-14 00:07:49+00:00)
Title: Dont create zero loops

Work related to #55, this attempts to investigate and solve the problem of polygons being created with zero-length edges during BSP tree construction.

Such polygons are dangerous, mathematically, to further operations and should not exist, or must be handled where computationally significant.

[[CITATION OF DISCOVERY](https://github.com/sshirokov/csgtool/pull/55#issuecomment-43989448)]