pythia_display.C file from root/tutorials/eve not running

ROOT
1

Dear Friends,
I installed root with pythia 8 as a plug in and it went completely well with the installation and even I ran an example from tutorials . I ran the example under Pythia8.C tutorials/pythia directory and it went totally well!

But when I tried to ran the file pythia_display.C from tutorials/eve directory I found an issue i.e it was made for pythia 6 library , hence I edited it accordingly and ran it and got following list of errors :frowning:
Please help fellows .

This is the link of code I am running .

https://root.cern.ch/root/html/tutorials/eve/pythia_display.C.html

Here is the link of errors I am getting :

root [1] .x /Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C
In file included from input_line_30:21:
In file included from /Users/Umang/pythia_root/root/include/TEveBrowser.h:15:
/Users/Umang/pythia_root/root/include/TEveElement.h:33:7: error: redefinition of 'TEveElementā€™
class TEveElement
^
/Users/Umang/pythia_root/root/include/TEveElement.h:33:7: note: previous definition is here
class TEveElement
^
In file included from input_line_30:21:
In file included from /Users/Umang/pythia_root/root/include/TEveBrowser.h:15:
/Users/Umang/pythia_root/root/include/TEveElement.h:428:37: error: base class has incomplete type
class TEveElementObjectPtr : public TEveElement,
~^~~~~
/Users/Umang/pythia_root/root/include/TPyDispatcher.h:22:7: note: forward declaration of 'TEveElementā€™
class TEveElement;
^
In file included from input_line_30:21:
In file included from /Users/Umang/pythia_root/root/include/TEveBrowser.h:15:
/Users/Umang/pythia_root/root/include/TEveElement.h:459:32: error: base class has incomplete type
class TEveElementList : public TEveElement,
~^~~~~
/Users/Umang/pythia_root/root/include/TPyDispatcher.h:22:7: note: forward declaration of 'TEveElementā€™
class TEveElement;
^
In file included from input_line_30:21:
In file included from /Users/Umang/pythia_root/root/include/TEveBrowser.h:15:
/Users/Umang/pythia_root/root/include/TEveElement.h:477:21: error: cannot initialize a variable of type 'const TObject ā€™ with an rvalue of
type 'const TEveElementList '
{ const TObject obj = this; return const_cast<TObject>(obj); }
^ ~~~~
/Users/Umang/pythia_root/root/include/TEveElement.h:481:57: error: cannot initialize object parameter of type ā€˜const TNamedā€™ with an
expression of type 'const TEveElementListā€™
virtual const char* GetElementName() const { return GetName(); }
^~~~~~~
/Users/Umang/pythia_root/root/include/TEveElement.h:482:57: error: cannot initialize object parameter of type ā€˜const TNamedā€™ with an
expression of type 'const TEveElementListā€™
virtual const char* GetElementTitle() const { return GetTitle(); }
^~~~~~~~
/Users/Umang/pythia_root/root/include/TEveElement.h:485:14: error: cannot initialize object parameter of type ā€˜TNamedā€™ with an expression of
type ā€˜TEveElementListā€™
{ TNamed::SetName(name); NameTitleChanged(); }
^~~~~~~
/Users/Umang/pythia_root/root/include/TEveElement.h:485:29: error: use of undeclared identifier ā€˜NameTitleChangedā€™
{ TNamed::SetName(name); NameTitleChanged(); }
^
/Users/Umang/pythia_root/root/include/TEveElement.h:488:14: error: cannot initialize object parameter of type ā€˜TNamedā€™ with an expression of
type ā€˜TEveElementListā€™
{ TNamed::SetTitle(title); NameTitleChanged(); }
^~~~~~~~
/Users/Umang/pythia_root/root/include/TEveElement.h:488:31: error: use of undeclared identifier ā€˜NameTitleChangedā€™
{ TNamed::SetTitle(title); NameTitleChanged(); }
^
/Users/Umang/pythia_root/root/include/TEveElement.h:491:14: error: cannot initialize object parameter of type ā€˜TNamedā€™ with an expression of
type ā€˜TEveElementListā€™
{ TNamed::SetNameTitle(name, title); NameTitleChanged(); }
^~~~~~~~~~~~
/Users/Umang/pythia_root/root/include/TEveElement.h:491:41: error: use of undeclared identifier ā€˜NameTitleChangedā€™
{ TNamed::SetNameTitle(name, title); NameTitleChanged(); }
^
/Users/Umang/pythia_root/root/include/TEveElement.h:520:58: error: cannot initialize return object of type ā€˜TEveElement *ā€™ with an rvalue of
type 'TEveElementListProjected '
virtual TEveElement GetProjectedAsElement() { return this; }
^~~~
In file included from input_line_30:21:
/Users/Umang/pythia_root/root/include/TEveBrowser.h:43:68: error: member access into incomplete type 'TEveElementā€™
virtual Bool_t IsActive() const { return fElement->GetSelectedLevel() != 0; }
^
/Users/Umang/pythia_root/root/include/TPyDispatcher.h:22:7: note: forward declaration of 'TEveElementā€™
class TEveElement;
^
In file included from input_line_30:21:
/Users/Umang/pythia_root/root/include/TEveBrowser.h:47:70: error: member access into incomplete type 'TEveElementā€™
virtual const char *GetText() const { return fElement->GetElementName(); }
^
/Users/Umang/pythia_root/root/include/TPyDispatcher.h:22:7: note: forward declaration of 'TEveElementā€™
class TEveElement;
^
In file included from input_line_30:21:
/Users/Umang/pythia_root/root/include/TEveBrowser.h:48:77: error: member access into incomplete type 'TEveElementā€™
virtual Int_t GetTextLength() const { return strlen(fElement->GetElementName()); }
^
/Users/Umang/pythia_root/root/include/TPyDispatcher.h:22:7: note: forward declaration of 'TEveElementā€™
class TEveElement;
^
In file included from input_line_30:21:
/Users/Umang/pythia_root/root/include/TEveBrowser.h:49:70: error: member access into incomplete type 'TEveElementā€™
virtual const char GetTipText() const { return fElement->GetElementTitle(); }
^
/Users/Umang/pythia_root/root/include/TPyDispatcher.h:22:7: note: forward declaration of 'TEveElementā€™
class TEveElement;
^
In file included from input_line_30:21:
/Users/Umang/pythia_root/root/include/TEveBrowser.h:50:77: error: member access into incomplete type 'TEveElementā€™
virtual Int_t GetTipTextLength() const { return strlen(fElement->GetElementTitle()); }
^
/Users/Umang/pythia_root/root/include/TPyDispatcher.h:22:7: note: forward declaration of 'TEveElementā€™
class TEveElement;
^
In file included from input_line_30:21:
/Users/Umang/pythia_root/root/include/TEveBrowser.h:57:72: error: member access into incomplete type 'TEveElementā€™
virtual const TGPictureGetPicture() const { return fElement->GetListTreeIcon(fOpen); }
^
/Users/Umang/pythia_root/root/include/TPyDispatcher.h:22:7: note: forward declaration of 'TEveElementā€™
class TEveElement;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
Error in TInterpreter::AutoParse: Error parsing payload code for class TEveException with content:

2

Hi,

Since it works with Pythia 6 (I just tried), could you tell what you modified exactly?

Cheers, Bertrand.

3

Dear Bertrand,

Many thanks for your reply :slight_smile:

I just replaced pythia6 with pythia8 in the code i.e wherever the word pythia6 appeared I changed it wit pythia8 and ran it, following is the list of errors I received (ignore the error log in the original post ):

Umangs-MacBook-Pro:eve Umang$ root -l pythia_display.C 
root [0] 
Processing pythia_display.C...
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:84:6: error: no
      member named 'SetMSEL' in 'TPythia8'
   P.SetMSEL(0);           // full user controll;
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:85:6: error: no
      member named 'SetMSUB' in 'TPythia8'
   P.SetMSUB(102, 1);      // g + g -> H0
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:89:6: error: no
      member named 'SetPMAS' in 'TPythia8'
   P.SetPMAS(6,  1, 175);  // mass of TOP
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:90:6: error: no
      member named 'SetPMAS' in 'TPythia8'
   P.SetPMAS(25, 1, 180);  // mass of Higgs
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:93:6: error: no
      member named 'SetCKIN' in 'TPythia8'
   P.SetCKIN(1, 170.0);    // range of allowed mass
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:94:6: error: no
      member named 'SetCKIN' in 'TPythia8'
   P.SetCKIN(2, 190.0);
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:96:6: error: no
      member named 'SetMSTP' in 'TPythia8'
   P.SetMSTP(61, 0);   // switch off ISR
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:97:6: error: no
      member named 'SetMSTP' in 'TPythia8'
   P.SetMSTP(71, 0);   // switch off FSR
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:98:6: error: no
      member named 'SetMSTP' in 'TPythia8'
   P.SetMSTP(81, 0);   // switch off multiple interactions
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:100:6: error: no
      member named 'SetMSTP' in 'TPythia8'
   P.SetMSTP(111, 0);  // Switch off fragmentation
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:104:9: error: no
      member named 'SetMDME' in 'TPythia8'
      P.SetMDME(i, 1, 0);
      ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:105:6: error: no
      member named 'SetMDME' in 'TPythia8'
   P.SetMDME(225, 1, 1);
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:109:9: error: no
      member named 'SetMDME' in 'TPythia8'
      P.SetMDME(i, 1, 0);
      ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:110:6: error: no
      member named 'SetMDME' in 'TPythia8'
   P.SetMDME(184, 1, 1);
   ~ ^
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:113:6: error: no
      matching member function for call to 'Initialize'
   P.Initialize("cms", "p", "p", 14000);
   ~~^~~~~~~~~~
/Users/Umang/pythia_root/root/include/TPythia8.h:100:28: note: candidate
      function not viable: no known conversion from 'const char [4]' to 'Int_t'
      (aka 'int') for 1st argument
   Bool_t                  Initialize(Int_t idAin, Int_t idBin, Double_...
                           ^
/Users/Umang/pythia_root/root/include/TPythia8.h:99:28: note: candidate function
      not viable: requires 3 arguments, but 4 were provided
   Bool_t                  Initialize(Int_t idAin, Int_t idBin, Double_t ecms);
                           ^
Error in <TInterpreter::AutoParse>: Error parsing payload code for class TEveGeoShape with content:


#ifndef G__VECTOR_HAS_CLASS_ITERATOR
  #define G__VECTOR_HAS_CLASS_ITERATOR 1
#endif

#define _BACKWARD_BACKWARD_WARNING_H
#include "TEveBrowser.h"
#include "TEveChunkManager.h"
#include "TEveCompound.h"
#include "TEveElement.h"
#include "TEveElementEditor.h"
#include "TEveEventManager.h"
#include "TEveGValuators.h"
#include "TEveGedEditor.h"
#include "TEveMacro.h"
#include "TEveManager.h"
#include "TEvePad.h"
#include "TEveParamList.h"
#include "TEveProjectionAxes.h"
#include "TEveProjectionAxesEditor.h"
#include "TEveProjectionAxesGL.h"
#include "TEveProjectionBases.h"
#include "TEveProjectionManager.h"
#include "TEveProjectionManagerEditor.h"
#include "TEveProjections.h"
#include "TEveScene.h"
#include "TEveSceneInfo.h"
#include "TEveSelection.h"
#include "TEveTrans.h"
#include "TEveTransEditor.h"
#include "TEveTreeTools.h"
#include "TEveUtil.h"
#include "TEveVector.h"
#include "TEvePathMark.h"
#include "TEveVSD.h"
#include "TEveVSDStructs.h"
#include "TEveViewer.h"
#include "TEveViewerListEditor.h"
#include "TEveWindow.h"
#include "TEveWindowEditor.h"
#include "TEveWindowManager.h"
#include "TEveSecondarySelectable.h"
#include "TEveArrow.h"
#include "TEveArrowEditor.h"
#include "TEveArrowGL.h"
#include "TEveBox.h"
#include "TEveBoxGL.h"
#include "TEveBoxSet.h"
#include "TEveBoxSetGL.h"
#include "TEveCalo.h"
#include "TEveCalo2DGL.h"
#include "TEveCalo3DGL.h"
#include "TEveCaloData.h"
#include "TEveCaloLegoEditor.h"
#include "TEveCaloLegoGL.h"
#include "TEveCaloLegoOverlay.h"
#include "TEveCaloVizEditor.h"
#include "TEveDigitSet.h"
#include "TEveDigitSetEditor.h"
#include "TEveDigitSetGL.h"
#include "TEveFrameBox.h"
#include "TEveFrameBoxGL.h"
#include "TEveGeoNode.h"
#include "TEveGeoNodeEditor.h"
#include "TEveGeoPolyShape.h"
#include "TEveGeoShape.h"
#include "TEveGeoShapeExtract.h"
#include "TEveGridStepper.h"
#include "TEveGridStepperEditor.h"
#include "TEveLegoEventHandler.h"
#include "TEveShape.h"
#include "TEveShapeEditor.h"
#include "TEveLine.h"
#include "TEveLineEditor.h"
#include "TEveLineGL.h"
#include "TEvePointSet.h"
#include "TEvePointSetArrayEditor.h"
#include "TEvePolygonSetProjected.h"
#include "TEvePolygonSetProjectedGL.h"
#include "TEveQuadSet.h"
#include "TEveQuadSetGL.h"
#include "TEveRGBAPalette.h"
#include "TEveRGBAPaletteEditor.h"
#include "TEveRGBAPaletteOverlay.h"
#include "TEveScalableStraightLineSet.h"
#include "TEveStraightLineSet.h"
#include "TEveStraightLineSetEditor.h"
#include "TEveStraightLineSetGL.h"
#include "TEveText.h"
#include "TEveTextEditor.h"
#include "TEveTextGL.h"
#include "TEveTrack.h"
#include "TEveTrackEditor.h"
#include "TEveTrackGL.h"
#include "TEveTrackProjected.h"
#include "TEveTrackProjectedGL.h"
#include "TEveTrackPropagator.h"
#include "TEveTrackPropagatorEditor.h"
#include "TEveTriangleSet.h"
#include "TEveTriangleSetEditor.h"
#include "TEveTriangleSetGL.h"
#include "TEveJetCone.h"
#include "TEveJetConeEditor.h"
#include "TEveJetConeGL.h"
#include "TEvePlot3D.h"
#include "TEvePlot3DGL.h"

#undef  _BACKWARD_BACKWARD_WARNING_H

In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:125:12: error: 
      allocation of incomplete type 'TEveGeoShape'
   b = new TEveGeoShape("Barell 1");
           ^~~~~~~~~~~~
input_line_15:142:560: note: forward declaration of 'TEveGeoShape'
  ...__attribute__((annotate("$clingAutoload$TEveGeoNode.h")))  TEveGeoShape;
                                                                ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:126:5: error: 
      member access into incomplete type 'TEveGeoShape'
   b->SetShape(new TGeoTube(kR_min, kR_max, kZ_d));
    ^
input_line_15:142:560: note: forward declaration of 'TEveGeoShape'
  ...__attribute__((annotate("$clingAutoload$TEveGeoNode.h")))  TEveGeoShape;
                                                                ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:127:5: error: 
      member access into incomplete type 'TEveGeoShape'
   b->SetMainColor(kCyan);
    ^
input_line_15:142:560: note: forward declaration of 'TEveGeoShape'
  ...__attribute__((annotate("$clingAutoload$TEveGeoNode.h")))  TEveGeoShape;
                                                                ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:128:5: error: 
      member access into incomplete type 'TEveGeoShape'
   b->SetMainTransparency(80);
    ^
input_line_15:142:560: note: forward declaration of 'TEveGeoShape'
  ...__attribute__((annotate("$clingAutoload$TEveGeoNode.h")))  TEveGeoShape;
                                                                ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:129:26: error: 
      cannot initialize a parameter of type 'TEveElement *' with an lvalue of
      type 'TEveGeoShape *'
   fake_geom->AddElement(b);
                         ^
/Users/Umang/pythia_root/root/include/TEveElement.h:233:41: note: passing
      argument to parameter 'el' here
   virtual void AddElement(TEveElement* el);
                                        ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:131:12: error: 
      allocation of incomplete type 'TEveGeoShape'
   b = new TEveGeoShape("Barell 2");
           ^~~~~~~~~~~~
input_line_15:142:560: note: forward declaration of 'TEveGeoShape'
  ...__attribute__((annotate("$clingAutoload$TEveGeoNode.h")))  TEveGeoShape;
                                                                ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:132:5: error: 
      member access into incomplete type 'TEveGeoShape'
   b->SetShape(new TGeoTube(2*kR_min, 2*kR_max, 2*kZ_d));
    ^
input_line_15:142:560: note: forward declaration of 'TEveGeoShape'
  ...__attribute__((annotate("$clingAutoload$TEveGeoNode.h")))  TEveGeoShape;
                                                                ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:133:5: error: 
      member access into incomplete type 'TEveGeoShape'
   b->SetMainColor(kPink-3);
    ^
input_line_15:142:560: note: forward declaration of 'TEveGeoShape'
  ...__attribute__((annotate("$clingAutoload$TEveGeoNode.h")))  TEveGeoShape;
                                                                ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:134:5: error: 
      member access into incomplete type 'TEveGeoShape'
   b->SetMainTransparency(80);
    ^
input_line_15:142:560: note: forward declaration of 'TEveGeoShape'
  ...__attribute__((annotate("$clingAutoload$TEveGeoNode.h")))  TEveGeoShape;
                                                                ^
In file included from input_line_20:1:
/Users/Umang/pythia_root/root/tutorials/eve/pythia_display.C:135:26: error: 
      cannot initialize a parameter of type 'TEveElement *' with an lvalue of
      type 'TEveGeoShape *'
   fake_geom->AddElement(b);
                         ^
/Users/Umang/pythia_root/root/include/TEveElement.h:233:41: note: passing
      argument to parameter 'el' here
   virtual void AddElement(TEveElement* el);
                                        ^
In file included from input_line_23:22:
/Users/Umang/pythia_root/root/include/TEveChunkManager.h:27:7: error: 
      redefinition of 'TEveChunkManager'
class TEveChunkManager
      ^
/Users/Umang/pythia_root/root/include/TEveChunkManager.h:27:7: note: previous
      definition is here
class TEveChunkManager
      ^
In file included from input_line_23:22:
/Users/Umang/pythia_root/root/include/TEveChunkManager.h:112:16: error: 
      incomplete type 'TEveChunkManager' named in nested name specifier
inline Char_t* TEveChunkManager::NewAtom()
               ^~~~~~~~~~~~~~~~~~
input_line_15:34:275: note: forward declaration of 'TEveChunkManager'
  ...__attribute__((annotate("$clingAutoload$TEveChunkManager.h")))  TEveChun...
                                                                     ^
In file included from input_line_23:22:
/Users/Umang/pythia_root/root/include/TEveChunkManager.h:125:32: error: base
      class has incomplete type
class TEveChunkVector : public TEveChunkManager
                        ~~~~~~~^~~~~~~~~~~~~~~~
input_line_15:34:275: note: forward declaration of 'TEveChunkManager'
  ...__attribute__((annotate("$clingAutoload$TEveChunkManager.h")))  TEveChun...
                                                                     ^
In file included from input_line_23:22:
/Users/Umang/pythia_root/root/include/TEveChunkManager.h:132:40: error: type
      'TEveChunkManager' is not a direct or virtual base of 'TEveChunkVector<T>'
   TEveChunkVector()                 : TEveChunkManager() {}
                                       ^~~~~~~~~~~~~~~~
/Users/Umang/pythia_root/root/include/TEveChunkManager.h:133:40: error: type
      'TEveChunkManager' is not a direct or virtual base of 'TEveChunkVector<T>'
   TEveChunkVector(Int_t chunk_size) : TEveChunkManager(sizeof(T), chunk...
                                       ^~~~~~~~~~~~~~~~
/Users/Umang/pythia_root/root/include/TEveChunkManager.h:138:52: error: use of
      undeclared identifier 'Atom'
   T* At(Int_t idx)  { return reinterpret_cast<T*>(Atom(idx)); }
                                                   ^
In file included from input_line_23:23:
/Users/Umang/pythia_root/root/include/TEveCompound.h:23:7: error: redefinition
      of 'TEveCompound'
class TEveCompound : public TEveElementList
      ^
/Users/Umang/pythia_root/root/include/TEveCompound.h:23:7: note: previous
      definition is here
class TEveCompound : public TEveElementList
      ^
In file included from input_line_23:23:
/Users/Umang/pythia_root/root/include/TEveCompound.h:60:7: error: redefinition
      of 'TEveCompoundProjected'
class TEveCompoundProjected : public TEveCompound,
      ^
/Users/Umang/pythia_root/root/include/TEveCompound.h:60:7: note: previous
      definition is here
class TEveCompoundProjected : public TEveCompound,
      ^
In file included from input_line_23:25:
/Users/Umang/pythia_root/root/include/TEveElementEditor.h:25:7: error: 
      redefinition of 'TEveElementEditor'
class TEveElementEditor : public TGedFrame
      ^
/Users/Umang/pythia_root/root/include/TEveElementEditor.h:25:7: note: previous
      definition is here
class TEveElementEditor : public TGedFrame
      ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
Error in <TInterpreter::AutoParse>: Error parsing payload code for class TEveTrackList with content:

[size=200][/size]

Please help and tell me what am I doing wrong or what changes are needed to be done :slight_smile:

Regards,
Umang

4

Hi,

You cannot simply replace pythia6 by pythia8 in the code, the two interfaces are not compatible. You will have to learn how to use Pythia8. See for example the $ROOTSYS/tutorials/pythia/pythi8.C tutorial.
(and Iā€™m sure Pythia8 itself has plenty of examples)

Cheers, Bertrand

5

Hi Bertrand,
Thanks again for your reply.
I agree with you that one cannot just replace pythia6 with pythia8 in the code and run it.

My question is How can I make this higgs code (with pythia 6) run with root and pythia 8 library ,what can be done about it?

How can I fix it and run the code.

Regards,
Umang

6

Hi Umang,

Well, I guess you have to understand what the Pythia6 code is doing, learn how to use Pythia8 and make the conversionā€¦ Or find and ask someone who knows pythia6 and pythia8 well enough to do the work.
But I think the best way would be for you to learn how to do it yourself.

Cheers, Bertrand.