Hi! If I try to draw a histogram (with option "P") where the bin contents varies a lot (small in one bin and high in the neighbouring bin) I get a strange behaviour. If the canvas is big enough or I zoom in, I get what I expect (two "lines") if I zoom out or make the canvas smaller, the histogram is filled in black, no matter which marker color I have selected before. I am using root 3.03/07 on Suse 7.3 The behaviour can be reproduced by the following macro: { TH1F* h1=new TH1F("hist","hist",2048,0,2047); for(int i=0; i<1024;i++){ h1->SetBinContent(i*2,i); h1->SetBinContent(i*2+1,5); } h1->SetMarkerColor(2); h1->SetMarkerStyle(1); h1->Draw("P"); } Thanks for your answers, regards, Markus ====================================== Markus Brehm Physikalisches Institut der Universitaet Heidelberg Philosophenweg 12 D-69120 Heidelberg Tel. +49 6221 54 9345 Fax +49 6221 475733 brehm@physi.uni-heidelberg.de
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