Hello Wolfgang STAR (http:www.star.bnl.gov) uses StHelix3DPoints class to draw helix in 3D For its EventDiplay's ( class StHelix3DPoints : public TPoints3DABC ) Have a look: http://www.star.bnl.gov/cgi-bin/cvsweb.cgi/StRoot/StEventDisplayMaker/St Helix3DPoints.h?rev=1.2&content-type=text/x-cvsweb-markup If you have some troubles with that link above let me know I'll send you the code with an attachment (roottalk filter any attachment out) Well we don't use THelix :-) But you can grab the idea. Best regards, Valeri > -----Original Message----- > From: owner-roottalk@pcroot.cern.ch [mailto:owner-roottalk@pcroot.cern.ch] > On Behalf Of Wolfgang Waltenberger > Sent: Friday, April 25, 2003 9:40 AM > To: root talk list > Subject: [ROOT] THelix in a TNode > > Dear roottalk, > > how can I have a THelix "in" a TNode, like the TShape derivatives? Or how > else can I make sure a THelix is drawn in the OpenGL viewer? > > Thank you, > > Wolfgang
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