i want to draw a curve like this :
i have rootfile and i a using this code for drawing :
TFile* f =new TFile("result.root");
TCanvas* c1 = new TCanvas("c1", " ");
TTree* tree = (TTree*)f->Get("Ntuple1");
but this is my output:
i would like to connect points to each other like first curve.
how can i do this?
result.root (605.1 KB)
Maybe @couet can give more details, but to draw contours only, use the
Your histogram is:
So a contour with any of the CONT option with not draw the plot you are looking for. For instance CONT1 gives:
if you use
A graph with point line-connected will be produced but, has the points are not properly ordered, you will get:
The only way I can think of would be to extract the non empty bins from the histogram or the points of the TGraph when option L is used and order them properly to generate a contour.
thank you all for your responding
i drawn all contour togather and used
CONT1 option and got this output
it is what i wanted.
is there a way to put number on each contour like first picture which i sent in first post ?
This is not foreseen by the option itself.
Somme example here: ROOT: tutorials/hist/ContourList.C File Reference