TH2Poly cannot SetMaximum

ROOT
1

Hi,
TH2Poly is a daughter class of TH2, however, I cannot change its maximum by SetMaximum(), anybody can explain why? The 2nd question is when I draw a TH2Poly object by Draw(“colz”), the painted palette cannot be reached by right-clicking mouse. How can I get the pointer of the palette?

Cheers,
Zhiyi.

2

The values set by SetMaximum() and SetMinimum() were not taken into account by GetMaximum() and GetMinimum(). Now fixed in the svn trunk.
Thanks for reporting

3

Thanks. Now it works.

The 2nd question is when I draw a TH2Poly object by Draw(“colz”), the painted palette cannot be reached by right-clicking mouse. How can I get the pointer of the palette?

I also tried the method “Scale”, it is useful, but not implemented yet.

4

Does it make sense when bins have random shapes ?

5

The palette can not be picked (fixed in the svn trunk).

6

Thank you for fixing this.

Another problem: right margin and bottom margin cannot be adjusted by mouse. I have to use command lines: c1->SetRightMargin() to change. Please fix.

7

I use TH2Poly not for random shapes. My x and y axises are zenith and azimuth angles. I make the bins so that each bin has the same solid angle. Before having TH2Poly, I have to write my own class to deal with this issue. “Scale” is useful.

8

I do not see this problem. It works for me.

9

Yes, you have a special case. But the general case for TH2Poly is that the bins can have any shape.
If you have a good implementation of Scale we can consider to include it.

10

Never mind. Now I use Add(const TH2Poly, double c1) implemented to realize the scaling function.

[quote=“couet”]
Yes, you have a special case. But the general case for TH2Poly is that the bins can have any shape.
If you have a good implementation of Scale we can consider to include it.[/quote]