ROOT for beginners - LinkSCEEM

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Save the objects ???• By choosing ".root" in menu "Save", a file'c1.root' is created.• In order to display the image later, you need toopen this file, e.g. with the browser:…the figure is displayed.In fact, a canvas is a sort of list ofobjects to display on the screen.The command "Draw" just adds anobject to this list…
Create some code ?• By choosing "c1.C" in the menu, a file iscreated which contains all the (C++)instructions necessary to recreate our figureYou can look atthe result in anytext editor…
Page 1 and 2:
ROOT for beginnersFirst DayDiscover
Page 3 and 4:
Handling ROOT files
Page 5 and 6:
Open a ROOT file withTBrowser• In
Page 7 and 8:
Looking at ROOT file contents• Th
Page 9 and 10:
Looking at ROOT file contents• Yo
Page 11 and 12:
Plotting spectraFirst of all, 1-D s
Page 13 and 14:
Discovering the canvas(TCanvas)•
Page 15 and 16:
What is this object ?• To see the
Page 17 and 18:
The canvas objects (again)• So we
Page 19 and 20:
Activate the canvas editor• To ch
Page 21 and 22:
Canvas editor• The editor appears
Page 23 and 24:
Changing the look of a spectrum•
Page 25 and 26: Changing the look of a spectrum•
Page 27 and 28: Changing the look of a spectrum•
Page 29 and 30: Canvas manipulation• If you want
Page 31 and 32: Manipulating the canvas• To refre
Page 33 and 34: Manipulating the canvas• Dividing
Page 35 and 36: Manipulating the canvas• Dividing
Page 37 and 38: Decorating a figureMaking pretty pi
Page 39 and 40: Adding objects to the canvas• Ope
Page 41 and 42: Adding object to the canvas• Open
Page 43 and 44: Add a pad to the canvas• Spectra
Page 45 and 46: Adding a pad• Spectra within spec
Page 47 and 48: Adding text• …using LaTeX (well
Page 49 and 50: Fitting a 1-D spectrum
Page 51 and 52: Fits• Simple fitting can easily b
Page 53 and 54: Fits• Simple fitting can easily b
Page 55 and 56: Working with 2-D spectra
Page 57 and 58: Displaying 2-D spectra• Several o
Page 59 and 60: An instructive little workedexample
Page 65 and 66: Operations on 2-D spectra• It's e
Page 71 and 72: Saving your figuresIt'd be a pity t
Page 73 and 74: Saving a masterpiece• Open the me
Page 75: Save the objects ???• By choosing
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