How to change colorbar

[hurricane1127]

Hi, rooters

How to change the colorbar option, such as the color, to make my picture become more clear and more distinguishable.

My picture is TH2D, and the draw option is SURF3 and COLZ,
And I also tried LEGO2, the same results.

Best regrads

[dastudillo]

You can define your own palette or use a predefined palette, check and scroll down here:
https://root.cern/doc/master/classTColor.html#C05

[hurricane1127]

@dastudillo

check and scroll down here:

Thanks dastudillo.Very instructive advice

[couet]

Check also: The Rainbow Color Map - ROOT

[hurricane1127]

Thanks couet.

[Wile_E_Coyote]

The first thing I would try: gPad->SetLogz(1);

[couet]

Yes, the blog post I posted suggest settting Log scale on Z.