Nick van Eijndhoven wrote: > 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). Nick & Otto, I agree with your requests. Simply a question of time as usual. I already have the bit of code to display diagrams, but most of the work is with the graphics editor. Fons is currently polishing a new superb user interface with the Windows95 look and feel (to be announced soon). I am waiting the integration in Root to redesign the graphics editor interface Rene Brun
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