Re: Problem with tpavetext and histogram cloning

Hi Olivier and Eduard,

Thanks a lot for the information!

Cheers,

Melinda

On Tue, Mar 13, 2012 at 1:18 PM, Olivier Couet <Olivier.Couet_at_cern.ch>wrote:

> Hi Melinda,
>
> I would say that you create your TPaveText once.
> Then each time you want to update it you first cleat it:
> http://root.cern.ch/root/html/TPaveText.html#TPaveText:Clear
> and then put the new lines .
>
> Olivier
>
> On Mar 13, 2012, at 12:04 PM, Melinda Siciliano wrote:
>
> Hi Olivier,
>
> My problem is that at every cycles I want to change message on the
> TPaveText blue. As it is now in the macro, at every cycle a new TPaveText
> blue is added on the histogram. I would like to have only one TPaveTExt
> blue and change at every cycle the message on it.
>
> Cheers,
>
> Melinda
>
> On Tue, Mar 13, 2012 at 11:22 AM, Olivier Couet <Olivier.Couet_at_cern.ch>wrote:
>
>> Oops ... sorry you already are using TPaveText .....
>> Forget my comment in the previous email..
>>
>> On Mar 13, 2012, at 11:21 AM, Olivier Couet wrote:
>>
>> Hi Melinda,
>>
>> try:
>> histos[...]->SetStats(0);
>>
>> Note that the way you handle stats is a bit unusual. The stats are
>> handle automatically in
>> principal. I guess you have your reasons . For me it would be more
>> logical to
>> add only TPaveText. Up to you .
>>
>> Olivier
>>
>> On Mar 13, 2012, at 9:50 AM, Melinda Siciliano wrote:
>>
>> Hi Olivier,
>>
>> Thanks a lot!
>>
>> I have a second question: how can I avoid the multiple TPavetext on the
>> histogram? Every time that I add a TPaveText is superimposed on the
>> previous and I want that only one TPavetext.
>>
>> Thanks for you help,
>>
>> Melinda
>>
>> On Mon, Mar 12, 2012 at 11:43 AM, Olivier Couet <Olivier.Couet_at_cern.ch>wrote:
>>
>>> Here is your macro modified
>>> Add(pave) was wrong ... pave is an array ...
>>> I put pave[1] you need to revisit the logic.
>>> I did some other mods .. do a diff...
>>>
>>> void tryhistos()
>>> {
>>> TH1F *histos[3];
>>> for (Int_t i=0;i<3;i++) {
>>> histos[i]=new TH1F(Form("histoname%d",i),Form("histotitle%d",i),
>>> 300,-0.5,29.5);
>>> }
>>> TCanvas *c1=new TCanvas("c1","c1");
>>> c1->Divide(1,3);
>>> TCanvas *c2=new TCanvas("c2","c2");
>>> c2->Divide(1,3);
>>>
>>> for(Int_t iii=0;iii<5;iii++){
>>> printf("n1 %d\n",iii);
>>> for (Int_t j=0;j<3;j++) {
>>> histos[0]->FillRandom("gaus",10000);
>>> histos[1]->FillRandom("landau",10000);
>>> histos[2]->FillRandom("expo",10000);
>>> }
>>> }
>>>
>>> TPaveText *pave[2];
>>> TH1 *histos2[3];
>>>
>>> for (Int_t hh=0;hh<5;hh++) {
>>> for (Int_t uu=0;uu<2;uu++) {
>>> pave[uu]=new TPaveText(0.3,0.88,0.9,0.99,"NDC");
>>> pave[uu]->AddText(Form("text %d",uu));
>>> pave[uu]->AddText(Form("text 2 %d",uu));
>>> pave[uu]->SetFillColor(4);
>>> pave[uu]->SetBorderSize(1);
>>> pave[uu]->SetLineWidth(1);
>>> }
>>> histos[0]->GetListOfFunctions()->Add(pave[1]);
>>> histos[1]->GetListOfFunctions()->Add(pave[1]);
>>> histos[2]->GetListOfFunctions()->Add(pave[1]);
>>> for(Int_t gg=0;gg<3;gg++)
>>> histos2[gg]=(TH1*)histos[gg]->Clone(Form("%s_cpy"
>>> ,histos[gg]->GetName()));
>>> c1->cd();
>>>
>>> for (Int_t z =0;z<3;z++) {
>>> c1->cd(z+1);
>>> histos[z]->Draw();
>>> c1->Update();
>>> }
>>>
>>> c2->cd();
>>> for (Int_t z =0;z<3;z++) {
>>> c2->cd(z+1);
>>> histos2[z]->DrawCopy();
>>> c2->Update();
>>> }
>>> }
>>> }
>>>
>>>
>>>
>>> On Mar 10, 2012, at 3:50 PM, Melinda Siciliano wrote:
>>>
>>> Dear all,
>>>
>>> I have a problem with the histograms cloning and it is reproduced in the
>>> macro I attached in the email. The error appears only if I add I the
>>> TPaveText to the histograms. I would like to know also how it is possible
>>> to avoid that the TPavetext are superimposed at every cycle. Have I to
>>> remove the TPaveText at the beginning of the new cycle? Does the clones
>>> have problems if some functions are attached to the histogram?
>>>
>>> I added below the log of the error.
>>>
>>> Cheers,
>>>
>>> Melinda
>>>
>>>
>>> The lines below might hint at the cause of the crash.
>>> If they do not help you then please submit a bug report at
>>> http://root.cern.ch/bugs. Please post the ENTIRE stack trace
>>> from above as an attachment in addition to anything else
>>> that might help us fixing this issue.
>>> ===========================================================
>>> #5 0x0000000000000000 in ?? ()
>>> #6 0x00007fba5d57555c in TClass::GetActualClass(void const*) const ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libCore.so.5.33
>>> #7 0x00007fba59f4078b in TBufferFile::WriteObjectAny(void const*,
>>> TClass const*) () from
>>> /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #8 0x00007fba5d559a30 in TList::Streamer(TBuffer&) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libCore.so.5.33
>>> #9 0x00007fba59f428f2 in TBufferFile::WriteFastArray(void**, TClass
>>> const*, int, bool, TMemberStreamer*) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #10 0x00007fba5a0107b8 in int
>>> TStreamerInfo::WriteBufferAux<char**>(TBuffer&, char** const&, int, int,
>>> int, int) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #11 0x00007fba59f88ebe in
>>> TStreamerInfoActions::GenericWriteAction(TBuffer&, void*,
>>> TStreamerInfoActions::TConfiguration const*) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #12 0x00007fba59f3d2b5 in
>>> TBufferFile::ApplySequence(TStreamerInfoActions::TActionSequence const&,
>>> void*) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #13 0x00007fba59f3d355 in TBufferFile::WriteClassBuffer(TClass const*,
>>> void*)
>>> () from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #14 0x00007fba594d941a in TH1::Streamer(TBuffer&) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libHist.so
>>> #15 0x00007fba5d59e76a in TStreamerBase::WriteBuffer(TBuffer&, char*) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libCore.so.5.33
>>> #16 0x00007fba5a0117f5 in int
>>> TStreamerInfo::WriteBufferAux<char**>(TBuffer&, char** const&, int, int,
>>> int, int) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #17 0x00007fba59f88ebe in
>>> TStreamerInfoActions::GenericWriteAction(TBuffer&, void*,
>>> TStreamerInfoActions::TConfiguration const*) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #18 0x00007fba59f3d2b5 in
>>> TBufferFile::ApplySequence(TStreamerInfoActions::TActionSequence const&,
>>> void*) ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #19 0x00007fba59f3d355 in TBufferFile::WriteClassBuffer(TClass const*,
>>> void*)
>>> () from /home/msicilia/work/alisoft/alice/root/trunk/lib/libRIO.so
>>> #20 0x00007fba5d4d1bdc in TDirectory::CloneObject(TObject const*, bool)
>>> ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libCore.so.5.33
>>> #21 0x00007fba5d4ea09d in TNamed::Clone(char const*) const ()
>>> from /home/msicilia/work/alisoft/alice/root/trunk/lib/libCore.so.5.33
>>> ===========================================================
>>>
>>> <tryhistos.C>
>>>
>>>
>>>
>>
>>
>>
>
>
Received on Fri Mar 16 2012 - 11:02:42 CET