Dear ROOTers, I have a TTree containing a.o. data for calorimeter cells. A cell is specified by a row and column number (the usual matrix geometry) and contains some signal. To view an event I would like to plot row%column in a lego plot with the signal as weight (= height of the bin). How can I achieve this ? The PAW equivalent would be : nt/plot 999.row%col signal Within ROOT I tried : (h999 is my TTtree) h999.Draw("ROW:COL:SIGNAL","EVENTNO==5","lego") but the result is a 3d plot but not in the usual LEGO format, so that I can't investigate the various signal heights from it. 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 *----------------------------------------------------------------------*
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