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
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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
*----------------------------------------------------------------------*