vtkGeant4Callback Class Reference

#include <G4VtkViewer.hh>

Inheritance diagram for vtkGeant4Callback:

Public Member Functions
virtual void	Execute (vtkObject *caller, unsigned long, void *)
void	SetGeant4ViewParameters (G4ViewParameters *VP)
void	SetVtkInitialValues (G4double parallelScaleIn, G4double cameraDistanceIn)
	vtkGeant4Callback ()

Static Public Member Functions
static vtkGeant4Callback *	New ()

Protected Attributes
G4double	cameraDistance
G4ViewParameters *	fVP
G4double	parallelScale

Detailed Description

Definition at line 58 of file G4VtkViewer.hh.

Constructor & Destructor Documentation

vtkGeant4Callback()

vtkGeant4Callback::vtkGeant4Callback ( )

inline

Definition at line 63 of file G4VtkViewer.hh.

{ fVP = nullptr; }

Member Function Documentation

Execute()

virtual void vtkGeant4Callback::Execute ( vtkObject *  caller, unsigned long  , void *    )

inlinevirtual

Definition at line 70 of file G4VtkViewer.hh.

  {
    vtkRenderer *ren = reinterpret_cast<vtkRenderer *>(caller);
    vtkCamera *cam = ren->GetActiveCamera();
    //G4cout << cam->GetFocalPoint()[0] << " " << cam->GetFocalPoint()[1] << " " << cam->GetFocalPoint()[2] << G4endl;
    //
    // G4cout << cam->GetPosition()[0] << " " << cam->GetPosition()[1] << " " << cam->GetPosition()[2] << G4endl;
 
    auto cp = cam->GetPosition();
    auto fp = cam->GetFocalPoint();
    auto ud = cam->GetViewUp();
 
    fVP->SetCurrentTargetPoint(G4Point3D(fp[0],fp[1],fp[2]));
    fVP->SetViewpointDirection((G4Point3D(cp[0],cp[1],cp[2]) -
                                G4Point3D(fp[0],fp[1],fp[2])).unit());
    fVP->SetUpVector(G4Vector3D(ud[0],ud[1], ud[2]));
 
    if(cam->GetParallelProjection()) {
      fVP->SetZoomFactor(parallelScale/cam->GetParallelScale());
    }
    else {
      auto cd = std::sqrt(std::pow(cp[0]-fp[0],2) +
                     std::pow(cp[1]-cp[1],2) +
                     std::pow(cp[2]-cp[2],2));
      fVP->SetZoomFactor(cameraDistance/cd);
    }
  }

References cd, and cp.

New()

static vtkGeant4Callback * vtkGeant4Callback::New ( )

inlinestatic

Definition at line 61 of file G4VtkViewer.hh.

{return new vtkGeant4Callback;}

SetGeant4ViewParameters()

void vtkGeant4Callback::SetGeant4ViewParameters ( G4ViewParameters *  VP )

inline

Definition at line 64 of file G4VtkViewer.hh.

{ fVP = VP;}

SetVtkInitialValues()

void vtkGeant4Callback::SetVtkInitialValues ( G4double  parallelScaleIn, G4double  cameraDistanceIn  )

inline

Definition at line 65 of file G4VtkViewer.hh.

  {
    parallelScale = parallelScaleIn;
    cameraDistance = cameraDistanceIn;
  }

Field Documentation

cameraDistance

G4double vtkGeant4Callback::cameraDistance

protected

Definition at line 101 of file G4VtkViewer.hh.

fVP

G4ViewParameters* vtkGeant4Callback::fVP

protected

Definition at line 99 of file G4VtkViewer.hh.

parallelScale

G4double vtkGeant4Callback::parallelScale

protected

Definition at line 100 of file G4VtkViewer.hh.

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The documentation for this class was generated from the following file:

• source/visualization/Vtk/include/G4VtkViewer.hh