Yesterday I came across a fellow colleague using some interesting tricks when editing his plot, it felt like he was using a 3rd-party software (the GUI looked like Adobe Acrobat, or something closer) and can zoom in and out the plot quite conveniently using his mouse wheel. Unfortunately I was in a hurry and did not get the change to talk with him to find out the trick (and I do not know him, sadly), does anyone have any idea how did he do that?
Ah thanks for your response! Yeah I knew this can be done within canvas but since I am generating plots on remote machine (where opening ROOT GUI is not a very good idea) I am more curious in seeing if I can scale the y-axis “offline”, ie., in produced plots (maybe there is some special format can support this), which would be really nice since we often get comments like “could you zoom in the plot a little bit?”…