Cannot draw TH2D "col" with Canvas grid?

ROOT
1

_ROOT Version:6.16
_Platform:macosx
_Compiler:clang

Hi, all:
I’d love to draw an 2D histogram TH2D with option “colz”
It seems this option cover the grid line setting by TCanvas::SetGrid.
How could I draw the Grid line again.

2

Try:

histo2D->Draw("COLZ");
gPad->SetGrid(1, 1);
gPad->Modified(); gPad->Update();
3

tried, but not works.:joy:

4

After having drawn the histogram with COLZ try:

gPad->RedrawAxis("g");
1 Like
5

problem solved. Thanks.

6

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