Re: Problem with tpavetext and histogram cloning

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 Tue Mar 13 2012 - 12:05:00 CET