Geant4  10.02.p01
G4CallbackModel.hh
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27 // $Id: G4CallbackModel.hh 66373 2012-12-18 09:41:34Z gcosmo $
28 //
29 //
30 // John Allison 31st December 1997.
31 //
32 // Class Description:
33 //
34 // G4CallbackModel calls a user-defined function containing, for
35 // example, calls to the Draw methods of G4VVisManager or the
36 // *Primitive* methods of G4VGraphicsScene. This allows the user to
37 // add his own graphical objects to a scene. The idea is that the
38 // callback function is invoked by the vis system to refresh the
39 // screen or remake a graphical database whenever required. The
40 // function class must contain:
41 //
42 // void operator()(G4VGraphicsScene&, const G4Transform3D&)
43 //
44 // A base class G4VUserVisAction is provided in the visualisation
45 // category. A G4CallbackModel is made by instantiating this template
46 // with a pointer to the function object. The G4VisManager does this
47 // for the user if he/she registers it (SetUserAction) and issues the
48 // command /vis/scene/add/userAction. See the User Guide for
49 // Application Developers, Section 8.8.7 and 8.8.8.
50 
51 #ifndef G4CALLBACKMODEL_HH
52 #define G4CALLBACKMODEL_HH
53 
54 #include "G4VModel.hh"
55 
56 template <class F> class G4CallbackModel: public G4VModel {
57 
58  public:
59  G4CallbackModel(F* function):
62  void DescribeYourselfTo(G4VGraphicsScene& sceneHandler) {
63  (*fFunction)(sceneHandler, fTransform);
64  }
65 
66 protected:
67 
69 
70 private:
71 
72  // Private copy constructor and assigment operator - copying and
73  // assignment not allowed. Keeps CodeWizard happy.
76 };
77 
78 #endif
G4Transform3D fTransform
Definition: G4VModel.hh:112
G4CallbackModel(F *function)
G4double(* function)(G4double)
G4CallbackModel & operator=(const G4CallbackModel &)
void DescribeYourselfTo(G4VGraphicsScene &sceneHandler)