2D histogram draw scale still inconsistent

ROOT
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ROOT Version (e.g. 6.12/02): 6.12/06
Platform, compiler (e.g. CentOS 7.3, gcc6.2): macOS 10.13.4, homebrew bottle

Please see thread: 2D histogram fit draws to wrong scale

This problem can be reproduced with the scripts & files from that thread. In fact it is clearly visible in every image posted there. (I would reply there but threads are locked now after 2 weeks. Is there a way to resurrect/unlock own threads?)

Steps: Plot TH2D w/ option “E”, then again with option “SURF0 SAME” (as in the last reply there). Notice that the surface does not line up with the data points.

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It looks like this can be worked around by using TH2::SetMinimum and TH2::SetMaximum.

Is this intended behavior? I assumed additional plots drawn using “same” would always be drawn to the scale set by the original plot. Maybe this is a bad assumption.

4

You should be able to post a follow-up to the original thread now.

5

Yes it is a limitation. Both plots should have the same min and max. see:
https://root.cern/doc/master/classTHistPainter.html#HP060a

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