On 6 November 2012 17:48, Chris Radek <[email protected]> wrote: > I think andy thinks you mean calculate normal as > (XYZ - current) cross (IJK - current) which he rightfully says flips > direction given an arc of more or less than semicircle, and for > semicircle and full circle it's indeterminate.
Though having said that, one can at least be consistent in assuming that start-end-centre are a clockwise triangle. (but that does flip as the arc becomes > 180 degrees). I think clockwise numbering is how STL defines face normals. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ LogMeIn Central: Instant, anywhere, Remote PC access and management. Stay in control, update software, and manage PCs from one command center Diagnose problems and improve visibility into emerging IT issues Automate, monitor and manage. Do more in less time with Central http://p.sf.net/sfu/logmein12331_d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
