HI Rene, Valeri and everyone else, My aim was to plot a contour map of a 2d histogram using a pre-determine levels and to each level assign a colour. I followed the manual's instructions but I found something peculiar. With TF2: Option levels set colours def graph colour scale colz none 5 good matched the graph 5 different equidistant levels colz 3 5 bad same as ignored SetContour previous test still shows 5 different equidistant level contz none 5 good matched the graph showed five regions contz 3 5 good.. show has not changeds three colours still shows 5 colours lego2z none 5 good.. five regions bad, the colour with different scale did not colours match the graph lego2z 3 5 good.. shows three bad, the colour colours at the scale did not correct levels match the graph although the colours are different from contz and colz surf2z none 5 good.. five regions matches the graph with different colours.. the colours match the previous graphs when the levels were not set surf2z 3 5 good correct levels bad the colour although colours scale did not are different again match the graph it is the same as before TH2: Option levels set colours def graph colour scale colz none 5 good good as expected colz 3 5 bad still the same scale as the shows five previous test contour regions contz none 5 good good, same as previous test contz 3 5 good, three bad.. it shows different colours the same scale as the previous test lego2z none 5 good good lego2z 3 5 good bad, the scale does not represent graph.. same problem as before I found this in the linux version 3.02/7 and in the windows version 3.02/6. (the two versions were compiled from the sources) I include the two scripts that I used to perform the tests.. tf2_contour.c and histo_contour.c .. My question is, is it me or is it a bug? I was wondering why when defining a level I can't define the colour that will be associated with that level. It would make life so much easier ;) At the moment it seems that there is very little control over which colours belong to which levels. I have two different palettes which I used but calling SetPalette with different colours starting at the same index does not seem to overwrite the previous colours.. only the empty slots get overwritten.. so the other question that I have is how to reset the palette. The reason is that one 2D histogram needs a gradual colour change.. the other needs distinctive colours. for example case 0: { const int colNum = 20; int k; k=0; for (i=0;i<colNum;i++) { TColor *color = new TColor(250+i,0.0,0.0,1.0 -Float_t(k)/12,""); i++; palette[i] = 250+i; } gStyle->SetPalette(colNum,palette); } break; case 1: // for the wafer map of the good column pairs, one colour // for each value.. only 10 values { const int colNum = 5; int palette[colNum]; float green,red,blue; for (i=0;i<colNum;i++) { switch(i) { case 0: red=1.0;green=1.0;blue=1.0;break; // no chip read case 1: red=1.0;green=0.0;blue=0.0;break; // no global case 2: red=1.0;green=0.5;blue=0.5;break; // global case 3: red=1.0;green=1.0;blue=0.0;break; // 1 col case 4: red=1.0;green=0.5;blue=0.0;break; // 2 case 5: red=1.0;green=1.0;blue=0.5;break; // 3 } TColor *color = new TColor(250+i,red,green,blue,""); palette[i] = 250+i; } gStyle->SetPalette(colNum,palette); } break; So before I draw each different 2d histogram I call the particular case that I need. I only get the correct colour is it is the first one to be called.. otherwise I get a mixture between the two because one is greater than the other. Any enlightment would be useful. thank you, Aldo *********************************************************** Aldo F. Saavedra ATLAS Collaboration - Pixel Group (Physics Division) Lawrence Berkeley National Laboratory Email: AFSaavedra@lbl.gov Phone: 1 510 486 4690 Fax: 1 510 486 5101 Postal Address: Lawrence Berkeley National Laboratory 1 Cyclotron Rd Mailstop 50B-6208 Berkeley, CA 94720 USA
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