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Subject: RE: The PolyBezier Element In CGM
Hi Dave, we had a quick look at the situation: The wording in the CGM standard suggests that (Xi, Yi) be the coordinates of Pi (i = 0,...,3). Using the shown formulas it is straight forward to get to the right polynomes. The alternative definition of Dick Fuhr results in the same polynomes. Both definitions are equivalent. Dieter -----Original Message----- From: Cruikshank, David W [mailto:david.w.cruikshank@boeing.com] Sent: Montag, 8. Oktober 2001 18:17 To: 'cgmopen-members@lists.oasis-open.org' Subject: FW: The PolyBezier Element In CGM Group, Our friend Dick Fuhr has been working on the Polybezier element for BoGART, so he started looking at its definition in the standard. He ran into some problems like he did when he was investigating NUBS/NURBS. Attached are his comments for discussion. Let me know what you think. thx....Dave > > > -----Original Message----- > From: Fuhr, Richard D > Sent: Tuesday, October 02, 2001 3:46 PM > To: Cruikshank, David W > Subject: The PolyBezier Element In CGM > > <<PolyBezier.doc>> > > Dave, > > Here is my first cut at a proposal for revising the CGM spec for the > Polybezier element. > > Let me know what you think; and where do we take it from here. > > Thanks, > > Dick
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