Re: Disable/enable filling an histogram

Olivier Couet wrote:

>Hello,
>
>I am sure my question is stupid, but why don't you simply not fill the
>histogram ? ie: do not call TH1:Fill() ?
>I am sure you have a very good reason to ask this and may be there is an
>other way to achieve the same result.
>
> Cheers, Olivier
>
>
>

Yes it is exactly what i want
but when you have a lot of histograms
and you want to devalidate the filling on 100 of them it is simpler not to change you code and juste tell to wanted histograms to be hang!

Thank you for you interest of my trouble!

Luc

>On Tue, 17 Jan 2006, Legeard Luc wrote:
>
>
>
>>Hello Rooters
>>
>>I'd like know if there a posibility to disable/enable filling an histogram
>>for example :
>>
>>we can imaging a such method TH1:Enable(Bool_t boolenable) with this
>>behaviour:
>>
>>TH1F <http://root.cern.ch/root/html////TH1F.html> *h1 = new TH1F
>><http://root.cern.ch/root/html////TH1F.html>("h1","h1",10,0,10);
>>
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(1); // fill bin 1
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(1); // fill bin 1
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(2); // fill bin 2
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(2); // fill bin 2
>>h1->Enable(kFALSE);
>>
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(1); // no action
>>!
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(1); // no action
>>!
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(2); // no action
>>!
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(2); // no action
>>! h1->Enable(kTRUE);
>>
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(1); // fill bin 1
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(1); // fill bin 1
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(2); // fill bin 2
>>h1->Fill <http://root.cern.ch/root/html///TH1.html#TH1:Fill>(2); // fill bin 2
>>
>>
>>Thanks a lot for your help
>>
>>Luc
>>
>>
>>
>>
>
>
>

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