Dear friends, To my opinion it would be very convenient if the ROOT graphics editor contained tools to draw Feynman diagrams. A functionality which would fit my needs would be something like this : 1) Select the 'Editor' from the canvas menu 2) Click the (new) item 'Feynman' from the editor panel 3) A new panel pops up with items (i.e. pictures of line types) as : ------ (internal boson line) -->--- (external fermion line) --<--- (external anti-fermion line) and of course the wavy photon and gluon lines etc... 4) One could then activate a certain line type (by clicking) 5) Go with the pointer to the canvas and click a certain position 6) Keep left button down and drag to another position 7) Release button, and the selected line type between the 2 points is drawn 8) With the normal editor panel one can put text (incl. Greek chars etc..) into the picture. As usual the picture can then be saved as a .ps .eps etc... file. P.S. It would be convenient if the convention for text chars could follow the LaTeX one; everybody know this (by heart) and I think no one is used anymore to the old HBOOK/PAW convention. Could this be implemented ? I think a lot more people would then start using ROOT immediately (e.g. theoreticians would then also be interested). Cheers, Nick. *----------------------------------------------------------------------* Dr. Nick van Eijndhoven Department of Subatomic Physics email : nick@fys.ruu.nl Utrecht University / NIKHEF tel. +31-30-2532331 (direct) P.O. Box 80.000 tel. +31-30-2531492 (secr.) NL-3508 TA Utrecht fax. +31-30-2518689 The Netherlands WWW : http://www.fys.ruu.nl/~nick Office : Ornstein lab. 172 ---------------------------------------------------------------------- tel. +41-22-7679751 (direct) CERN PPE Division / ALICE exp. tel. +41-22-7675857 (secr.) CH-1211 Geneva 23 fax. +41-22-7679480 Switzerland CERN beep : 13+7294 Office : B 160 1-012 *----------------------------------------------------------------------*
This archive was generated by hypermail 2b29 : Tue Jan 04 2000 - 00:34:29 MET