Hi Paul, What is the problem? I do not see any problems with this program. g++ -o nord nord.cxx -I$ROOTSYS/include `root-config --libs` Rene Brun On Fri, 16 Nov 2001, Paul Nord wrote: > On Wed, 14 Nov 2001, Rene Brun wrote: > > > Hi paul, > > > > It looks like you delete twice the same object. > > Cannot tell you more without looking at your code. > > Please, send the strict necessary to reproduce the problem. > > > > Rene Brun > > > > After a lot of effort, I think that I may be close to the answer. > > Try to compile this: > > #include "TApplication.h" > #include "TCanvas.h" > #include "TLine.h" > #include "TPaveLabel.h" > #include "TMarker3DBox.h" > #include "TView.h" > > int main(int argc, char **argv) > { > TApplication theApp("App", &argc, argv); > > TCanvas *c = new TCanvas("c", "My Canvas", 400, 400); > > TPaveLabel *hello = new TPaveLabel(0.2,0.0,0.8,0.4,"Hello World"); > hello->Draw(); > c->Update(); > > // Create main display pad > TPad *m_Pad = new TPad("viewpad", "Event display",0.0,.4,1,1); > m_Pad->Draw(); > m_Pad->Modified(); > m_Pad->SetBorderSize(2); > m_Pad->cd(); > > TView *view = new TView(1); > view->SetRange(-1,-1,-1,1,1,1); > > TMarker3DBox *marker = new TMarker3DBox(); > marker->SetPosition(0,0,0); > marker->SetSize(.1,.1,.1); > marker->SetLineColor(2); > marker->Draw(); > > c->Update(); > > theApp.Run(); > > return 0; > } > > > >
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