Peter Hachenberger f92dfb5504 constructor from plane, constructs halfspace on negative side of the plane		2007-01-29 14:26:58 +00:00
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Nef_3	fixed typo	2006-11-02 16:21:11 +00:00
Nef_3_ref	constructor from plane, constructs halfspace on negative side of the plane	2007-01-29 14:26:58 +00:00