Yes, using 3.05/05, it works perfectly !! Thank you very much ! A last question concerning contours: does/will option CONT1Z exist ? COLZ ans CONTZ exist, but CONT1Z does not work. Have I an other possibility to draw the color palette ? Matthieu. On Wed, 18 Jun 2003, Olivier Couet wrote: > > Hi, > > In your previous email you said that your ROOTSYS is: > > export ROOTSYS=/afs/cern.ch/sw/root/v3.04.02/rh72_gcc2953/root; > > Try to use 3.05/05 instead. I have recently modified that "contour > business" quite a lot. There was a lot of problems (with none equidistant > contours in particular). Note that the non equidistant level are also > implemented with the COLZ option now. > > Olivier > > > On Wed, 18 Jun 2003, Matthieu Lechowski wrote: > > > Hello, > > > > Thank you for your answer. > > > > I think it does not work for me. > > When I retrieve the array contours (after the plot), I have > > 0.99 > > 63.9933 > > 126.997 > > I have max=190, so the levels are not 0.1*max, 0.2*max and 0.7*max, they > > are (almost) equidistant ! > > Very strange... > > So it would be because of the ROOT version or the machine. > > > > Matthieu. > > > > On Wed, 18 Jun 2003, Olivier Couet wrote: > > > > > > > > > > > Can you try this one: > > > > > > { > > > TH2F *h = new TH2F("h","test contours",60,-3,3,60,-3,3); > > > for (Int_t i=0;i<100000;i++) { > > > double x,y; > > > gRandom->Rannor(x,y); > > > h->Fill(x,y); > > > } > > > h->SetMinimum(0.99); > > > Double_t max = h->GetMaximum(); > > > > > > double contours[3]; > > > contours[0] = 0.1*max; > > > contours[1] = 0.2*max; > > > contours[2] = 0.7*max; > > > > > > h->SetContour(3,contours); > > > h->Draw("cont1"); > > > > > > } > > > > > > it should produce 3 non equidistant contours. At least it does on my Linux > > > RedHat PC using root 3.05/05 > > > > > > Cheers, > > > > > > O.Couet > > > > > > > > > > > > > > > On Wed, 18 Jun 2003, Matthieu Lechowski wrote: > > > > > > > Hello, > > > > > > > > I do not succeed specifying my own levels of contour for 2D histograms. > > > > > > > > In a ROOT script (I load a program .c then I call a function), I do: > > > > TH2F* contour=new TH2F("contour","contour",nbinsX,xbins,nbinsY,ybins); > > > > //...filling "contour" > > > > Double_t levels[17]; > > > > levels[0]=1.864 > > > > levels[1]=5. > > > > //...filling "levels" non-equidistant > > > > contour->SetContour(17,levels); // <<----- ###### > > > > // NB: definition of this function in TH1 class > > > > contour->Draw("cont1"); > > > > > > > > My plot has 17 levels, OK, but they are equidistant ! > > > > > > > > When I want be sure that ROOT has understood "levels", I do (in my > > > > function too): > > > > Double_t levels2[50]; > > > > int ncontours=contour->GetContour(levels2); > > > > for(int i=0;i<ncontours;++i) > > > > cout<<levels2[i]<<endl; > > > > and I have exactly the same values that "levels", so it seems OK. > > > > > > > > The funny thing is that, after having done all that in the function, I > > > > redo in interactive the check with "levels2", and I have not the > > > > values of "levels", but the values of 17 equidistant levels (so as it > > > > is drawn)! > > > > > > > > So what happens ?? > > > > Have anybody an idea? > > > > (I hope that I gave a not too dark explanation) > > > > Thank you. > > > > > > > > Matthieu Lechowski. > > > > > > > > PS: I'm using ROOT on lxplus at cern, with environment: > > > > export ROOTSYS=/afs/cern.ch/sw/root/v3.04.02/rh72_gcc2953/root; > > > > export PATH=$ROOTSYS/bin:$PATH; > > > > export LD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH > > > > > > > > > > > > > > -- > > > Org: CERN - European Laboratory for Particle Physics. > > > Mail: 1211 Geneve 23 - Switzerland Mailbox: J25910 > > > E-Mail: Olivier.Couet@cern.ch Phone: +41 22 7676522 > > > WWW: http://cern.ch/Olivier.Couet/ Fax: +41 22 7677155 > > > > > > > > > > -- > Org: CERN - European Laboratory for Particle Physics. > Mail: 1211 Geneve 23 - Switzerland Mailbox: J25910 > E-Mail: Olivier.Couet@cern.ch Phone: +41 22 7676522 > WWW: http://cern.ch/Olivier.Couet/ Fax: +41 22 7677155 > >
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