Before setting up the attributes of a palette, the code below was used to get the Axis of the palette,
but it failed, from the output comment, it showed palette was a nullptr.
but from result file, there is a palette member in TH2D class pointer “h2”, it is shown below:
so how to set up the attributes of a palette?
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ROOT Version: 6.28/04
Platform: Ubuntu 20.04
Compiler: GCC 9.4.0
what exactly do you want to do with the palette that you need to get its axis? What is the end goal?
@dastudillo , thanks, after implement “gPad->Update()”, everything works well!
@yus , i want to add a title(include physics quantity and units) to the palette.
I don’t think you need to manipulate with the
TPaletteAxis for this, you just need to do
@yus , yes, you are right, thanks!
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