Re: multiple plots with multiple stat boxes in one canvas

Hi Francesca,

Try a gPad->Update() after the h_s->Draw(). The stat object is not created before the update.

Cheers

        Eduard

On Sun, 27 Feb 2011, francesca.belloni_at_ts.infn.it wrote:

> Hi all!
> I'm using ROOT 5.18 on my laptop.
> I'd like to create multiple plots with multiple stat boxes in one canvas
> and found http://home.fnal.gov/~asmoron/roottips.html#stat_box
>
> But actually it works just if I give commands from command line.
> By using a routine, it does not work even if I try to modify just the text
> color of one stat box... The input file is really simple, since it is just
> a trial.
>
> #include <cstdlib>
> #include <cstdio>
> #include <iostream>
> #include <fstream>
> #include <string>
> #include <vector>
> #include <sstream>
> #include <cmath>
> #include "TColor.h"
> #include "TStyle.h"
> #include <TFile.h>
> #include <TCanvas.h>
> #include <TH2F.h>
> #include <TSystem.h>
> #include <TPave.h>
> #include <TPaveStats.h>
>
> using namespace std;
>
>
> void trial() {
>
>
>
> TFile *f_s=new TFile("file1.root","read");
> TH1D*h_s=(TH1D*)f_s->Get("proj");
> h_s->Draw();
>
> TPaveStats *p =
> (TPaveStats*)h_s->GetListOfFunctions()->FindObject("stats");
> p->SetColor(2);
> p->Draw();
> f_s->Close();
>
> }
>
>
> By activating the gdb debugging, I obtain the following error message.
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007ffff32454cd in trial () at
> /home/irfulx157/mnt/fbelloni/workspace/XYMG/Exp_Res/14_06_2010/beam_profile/./trial.C:30
> 30 p->SetTextColor(2);
> #0 0x00007ffff32454cd in trial () at
> /home/irfulx157/mnt/fbelloni/workspace/XYMG/Exp_Res/14_06_2010/beam_profile/./trial.C:30
> #1 0x00007ffff324556f in G__file5viCoV__0_2063 (result7=0x7fffffff69d0,
> funcname=0x9c8430 "\001", libp=0x7fffffff01b0, hash=0)
> at
> /home/irfulx157/mnt/fbelloni/workspace/XYMG/Exp_Res/14_06_2010/beam_profile/./file5viCoV.cxx:68
> #2 0x00007ffff6c067fd in G__call_cppfunc () from
> /usr/lib/root/libCint.so.5.18
> #3 0x00007ffff6be671f in G__interpret_func () from
> /usr/lib/root/libCint.so.5.18
> #4 0x00007ffff6bd8de1 in G__getfunction () from
> /usr/lib/root/libCint.so.5.18
> #5 0x00007ffff6bb9d72 in G__getitem () from /usr/lib/root/libCint.so.5.18
> #6 0x00007ffff6bc0479 in G__getexpr () from /usr/lib/root/libCint.so.5.18
> #7 0x00007ffff6bc6a88 in G__calc_internal () from
> /usr/lib/root/libCint.so.5.18
> #8 0x00007ffff6c39376 in G__process_cmd () from
> /usr/lib/root/libCint.so.5.18
> #9 0x00007ffff76678c0 in TCint::ProcessLine(char const*,
> TInterpreter::EErrorCode*) () from /usr/lib/root/libCore.so.5.18
> #10 0x00007ffff75d5fa2 in TApplication::ExecuteFile(char const*, int*) ()
> from /usr/lib/root/libCore.so.5.18
> #11 0x00007ffff75d4973 in TApplication::ProcessLine(char const*, bool,
> int*) () from /usr/lib/root/libCore.so.5.18
> #12 0x00007ffff68dbe6e in TRint::Run(bool) () from
> /usr/lib/root/libRint.so.5.18
> #13 0x00000000004011bc in main ()
> (gdb) info locals
> f_s = 0x964c50
> h_s = 0xb6f070
> p = 0x0
>
>
> Could anyone help me, please?
>
> Thank you,
> regards,
> Francesca
>
>
Received on Sun Feb 27 2011 - 15:46:39 CET