Hi Chris,
what kind of button TButton or TGButton? Please, try to provide runable
axample.
Cheers, Fons.
Chris Milne wrote:
>
> Hi there,
>
> I have a button on screen which, when clicked, displays a canvas with four
> graphs. However, if I close the canvas and click the button again I get:
>
> *** Break *** bus error
> Root > Function display_blue_blea() busy flag cleared
>
> The function called by the button is below:
>
> void display_blue_blea() {
> TCanvas *blue_blea;
> if(blue_blea) delete blue_blea;
> blue_blea = new TCanvas ("blue_blea", "Blueshift and
> Bleaching",20,20,710,710);
> blue_blea->Divide(2,2);
> blue_blea->cd(1);
> pad2->Draw();
> blue_blea->cd(2);
> pad3->Draw();
> blue_blea->cd(3);
> pad4->Draw();
> blue_blea->cd(4);
> pad5->Draw();
> blue_blea->cd(1);
> TSlider *xslider = new TSlider("xslider","x",0.1,0.02,0.9,0.1);
> xslider->AddExec("fit",".x fit.C"); //run on mouse
> over pad
> blue_blea->cd(2);
> TSlider *xslider2 = new TSlider("xslider2","x",0.1,0.02,0.9,0.1);
> xslider2->AddExec("fit",".x fit.C"); //run on mouse over pad
> blue_blea->cd(3);
> TSlider *xslider3 = new TSlider("xslider3","x",0.1,0.02,0.9,0.1);
> xslider3->AddExec("fit",".x fit.C");
> blue_blea->cd(4);
> TSlider *xslider4 = new TSlider("xslider4","x",0.1,0.02,0.9,0.1);
> xslider4->AddExec("fit",".x fit.C");
> pad2->cd();
> TH2F * bleaaxisHH= new TH2F("bleaaxisHH","Bleaching Heavy
> Hole",y,time[0],time[y-1],x,HH_bleach_min,HH_bleach_max);
> bleaaxisHH->SetStats(kFALSE);
> bleaaxisHH->GetYaxis()->SetLimits(0,HH_bleach_max);
> bleaaxisHH->Draw("A");
> bleaaxisHH->GetYaxis()->SetTitleOffset(1.2);
> Bleach_HH_SCP->Draw("P");
> Bleach_HH_SCP->SetMarkerColor(kBlue);
> Bleach_HH_SCP->SetMarkerStyle(8);
> Bleach_HH_SCP->SetMarkerSize(0.5);
> Bleach_HH_SCP->SetLineColor(kBlue);
> Bleach_HH_OCP->Draw("P");
> Bleach_HH_OCP->SetMarkerColor(kGreen);
> Bleach_HH_OCP->SetMarkerStyle(8);
> Bleach_HH_OCP->SetMarkerSize(0.5);
> Bleach_HH_OCP->SetLineColor(kGreen);
>
> pad3->cd();
> TH2F * bleaaxisLH= new TH2F("bleaaxisLH","Bleaching Light
> Hole",y,time[0],time[y-1],x,LH_bleach_min,LH_bleach_max);
> bleaaxisLH->SetStats(kFALSE);
> bleaaxisLH->Draw("A");
> pad3->Update();
> bleaaxisLH->GetYaxis()->SetTitleOffset(1.2);
> Bleach_LH_SCP->Draw("P");
> Bleach_LH_SCP->SetMarkerColor(kBlue);
> Bleach_LH_SCP->SetMarkerStyle(8);
> Bleach_LH_SCP->SetMarkerSize(0.5);
> Bleach_LH_SCP->SetLineColor(kBlue);
> Bleach_LH_OCP->Draw("P");
> Bleach_LH_OCP->SetMarkerColor(kGreen);
> Bleach_LH_OCP->SetMarkerStyle(8);
> Bleach_LH_OCP->SetMarkerSize(0.5);
> Bleach_LH_OCP->SetLineColor(kGreen);
>
> pad4->cd();
> TH2F * blueaxisHH= new TH2F("blueaxisHH","Blueshift Heavy
> Hole",y,time[0],time[y-1],x,HH_blueshift_min,HH_blueshift_max);
> blueaxisHH->SetStats(kFALSE);
> blueaxisHH->Draw("A");
> blueaxisHH->GetYaxis()->SetTitleOffset(1.2);
> Blueshift_HH_SCP->Draw("P");
> Blueshift_HH_SCP->SetMarkerColor(kBlue);
> Blueshift_HH_SCP->SetMarkerStyle(8);
> Blueshift_HH_SCP->SetMarkerSize(0.5);
> Blueshift_HH_SCP->SetLineColor(kBlue);
> Blueshift_HH_OCP->Draw("P");
> Blueshift_HH_OCP->SetMarkerColor(kGreen);
> Blueshift_HH_OCP->SetMarkerStyle(8);
> Blueshift_HH_OCP->SetMarkerSize(0.5);
> Blueshift_HH_OCP->SetLineColor(kGreen);
>
> pad5->cd();
> TH2F * blueaxisLH= new TH2F("blueaxisLH","Blueshift Light
> Hole",y,time[0],time[y-1],x,LH_blueshift_min,LH_blueshift_max);
> blueaxisLH->SetStats(kFALSE);
> blueaxisLH->GetYaxis()->SetLimits(0,LH_blueshift_max);
> blueaxisLH->Draw("A");
> blueaxisLH->GetYaxis()->SetTitleOffset(1.2);
> Blueshift_LH_SCP->Draw("P");
> Blueshift_LH_SCP->SetMarkerColor(kBlue);
> Blueshift_LH_SCP->SetMarkerStyle(8);
> Blueshift_LH_SCP->SetMarkerSize(0.5);
> Blueshift_LH_SCP->SetLineColor(kBlue);
> Blueshift_LH_OCP->Draw("P");
> Blueshift_LH_OCP->SetMarkerColor(kGreen);
> Blueshift_LH_OCP->SetMarkerStyle(8);
> Blueshift_LH_OCP->SetMarkerSize(0.5);
> Blueshift_LH_OCP->SetLineColor(kGreen);
>
> bleaaxisLH->GetYaxis()->SetTitle("Bleaching (a.u.)");
> bleaaxisHH->GetYaxis()->SetTitle("Bleaching (a.u.)");
> blueaxisLH->GetYaxis()->SetTitle("Blueshift (meV)");
> blueaxisHH->GetYaxis()->SetTitle("Blueshift (meV)");
> bleaaxisLH->GetXaxis()->SetTitle("Time (ps)");
> bleaaxisHH->GetXaxis()->SetTitle("Time (ps)");
> blueaxisLH->GetXaxis()->SetTitle("Time (ps)");
> blueaxisHH->GetXaxis()->SetTitle("Time (ps)");
> pad2->cd();
> TPaveText *legend = new TPaveText(.82,.82,.97,.97,"NDC");
> TText *OCP = new TText(0.85,0.85,"OCP");
> TText *SCP = new TText(0.85,0.9,"SCP");
> legend->Draw();
> OCP->SetTextColor(kGreen);
> SCP->SetTextColor(kBlue);
> SCP->DrawTextNDC(0.85,0.84,"OCP");
> OCP->DrawTextNDC(0.85,0.91,"SCP");
> blue_blea->cd(2);
> legend->Draw();
> SCP->DrawTextNDC(0.85,0.84,"OCP");
> OCP->DrawTextNDC(0.85,0.91,"SCP");
> blue_blea->cd(3);
> legend->Draw();
> SCP->DrawTextNDC(0.85,0.84,"OCP");
> OCP->DrawTextNDC(0.85,0.91,"SCP");
> blue_blea->cd(4);
> legend->Draw();
> SCP->DrawTextNDC(0.85,0.84,"OCP");
> OCP->DrawTextNDC(0.85,0.91,"SCP");
> }
--
Org: CERN, European Laboratory for Particle Physics.
Mail: 1211 Geneve 23, Switzerland
E-Mail: Fons.Rademakers@cern.ch Phone: +41 22 7679248
WWW: http://root.cern.ch/~rdm/ Fax: +41 22 7677910
This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:50:57 MET