Re: hist painter

Hello Rene,

Thank you. I have two more questions.

1. Is there any way to get the current painter name which is set via TVirtualHistPainter::SetPainter?
2. Do I have to always call TVirtualHistPainter::SetPainter("MyHistPainter") when I clone a TH1 whose painter is MyHistPainter?
3. Is there any way to set another painter (e.g. from THistPainter to MyHistPainter) after TH1::GetPainter is called first time?

Regards,

--
OKUMURA, Akira oxon@{astro.isas.jaxa.jp,stanford.edu}
Institute of Space and Astronautical Science (ISAS/JAXA)
Now at KIPAC/SLAC/Stanford
Varian Physics #306
382 Via Pueblo Mall, MC 406 Stanford, CA94305
TEL 650-736-0971/FAX 650-724-5065
Skype : okumura.akira

On 2010/08/19, at 1:31, Rene Brun wrote:

> Hi Akira,
> 
> Yes, your interpretation is correct.
> 
> Rene
> 
> OKUMURA, Akira wrote:


>> Hello ROOTers,

>> 

>> I am writing a class MyHistPainter which derive from THistPainter.

>> 

>> Since TH1 does not have a method SetPainter, I have to write my code as follows.

>> 

>> TVirtualHistPainter::SetPainter("MyHistPainter"); // switch the default painter to mine

>> TH1* hist = new TH1("", "", 100, 0, 1);

>> hist->GetPainter(); // create a painter

>> TVirtualHistPainter::SetPainter("THistPainter"); // revert to the original one

>> 

>> Is this a correct way when using own painter?

>> 

>> Regards,

>> 

>> --

>> OKUMURA, Akira oxon@{astro.isas.jaxa.jp,stanford.edu}

>> Institute of Space and Astronautical Science (ISAS/JAXA)

>> Now at KIPAC/SLAC/Stanford

>> Varian Physics #306

>> 382 Via Pueblo Mall, MC 406 Stanford, CA94305

>> TEL 650-736-0971/FAX 650-724-5065

>> Skype : okumura.akira

>> 

>> 

>