Alternatively: Draw a sphere with its center in the corner. The edge to edge angles of the corner are sides in the spherical triangle, and the face to face angles of the corner are angles in the spherical triangle. Use spherical trigonometry formulas. - Bo
--- Den fre 21/8/09 skrev Bo Jacoby <[email protected]>: > Fra: Bo Jacoby <[email protected]> > Emne: Re: [Jprogramming] Szilassi's toroidal heptahedron: interfacial angles? > Last try. > Til: "Programming forum" <[email protected]> > Dato: fredag 21. august 2009 04.58 > Isn't it just plain linear algebra? > You have a 3-corner and knows the 3 cosines of angles > between 3 vectors. Compute the cosines of angles between > pairwise normals to the vectors. > > Venlig hilsen, Bo. > > > --- Den fre 21/8/09 skrev Sherlock, Ric <[email protected]>: > > > Fra: Sherlock, Ric <[email protected]> > > Emne: Re: [Jprogramming] Szilassi's toroidal > heptahedron: interfacial angles? Last try. > > Til: "Programming forum" <[email protected]> > > Dato: fredag 21. august 2009 03.07 > > Hi Peter, > > You could try providing some sample data and show what > you > > expect the result to be. > > That might elicit a better response. > > > > > From: PMA > > > > > > Here is a final crack at posing my question -- > this is > > as whittled as > > > I can whittle: > > > > > > Given a 3-D vertex of 3 faces with all > edge-to-edge > > angles known, > > > how does one calculate its face-to-face angles > (all, > > one per edge)? > > > > > > If there come to mind other sites especially > > interested in this sort > > > of query, I'd appreciate hearing. > > > > > > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > > Trænger du til at se det store > billede? Kelkoo giver dig gode tilbud på LCD TV! Se her > http://dk.yahoo.com/r/pat/lcd > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ___________________________________________________________ Skal du købe ny bil? Sammenlign priser på brugte biler med Kelkoo og find et godt tilbud! - Se mere her http://dk.yahoo.com/r/pat/mmb ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
