vtkGeant4Callback Class Reference

#include <G4VtkViewer.hh>

Inheritance diagram for vtkGeant4Callback:

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

Static Public Member Functions
static vtkGeant4Callback *	New ()

Protected Attributes
G4ViewParameters *	fVP
G4double	parallelScale
G4double	cameraDistance

Detailed Description

Definition at line 70 of file G4VtkViewer.hh.

Constructor & Destructor Documentation

vtkGeant4Callback()

vtkGeant4Callback::vtkGeant4Callback ( )

inline

Definition at line 75 of file G4VtkViewer.hh.

{ fVP = nullptr; }

Member Function Documentation

Execute()

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

inlineoverride

Definition at line 82 of file G4VtkViewer.hh.

    {
      auto ren = static_cast<vtkRenderer*>(caller);
      vtkCamera* cam = ren->GetActiveCamera();
 
      auto cp = cam->GetPosition();
      auto fp = cam->GetFocalPoint();
      auto ud = cam->GetViewUp();
      auto ps = cam->GetParallelScale();
      auto cd = std::sqrt(std::pow(cp[0] - fp[0], 2) + std::pow(cp[1] - fp[1], 2)
                          + std::pow(cp[2] - fp[2], 2));
 
      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() != 0) {
        fVP->SetZoomFactor(parallelScale / ps);
      }
      else {
        fVP->SetZoomFactor(cameraDistance / cd);
      }
    }

New()

static vtkGeant4Callback * vtkGeant4Callback::New ( )

inlinestatic

Definition at line 73 of file G4VtkViewer.hh.

{ return new vtkGeant4Callback; }

SetGeant4ViewParameters()

void vtkGeant4Callback::SetGeant4ViewParameters ( G4ViewParameters * VP )

inline

Definition at line 76 of file G4VtkViewer.hh.

{ fVP = VP; }

SetVtkInitialValues()

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

inline

Definition at line 77 of file G4VtkViewer.hh.

    {
      parallelScale = parallelScaleIn;
      cameraDistance = cameraDistanceIn;
    }

Member Data Documentation

cameraDistance

G4double vtkGeant4Callback::cameraDistance

protected

Definition at line 109 of file G4VtkViewer.hh.

fVP

G4ViewParameters* vtkGeant4Callback::fVP

protected

Definition at line 107 of file G4VtkViewer.hh.

parallelScale

G4double vtkGeant4Callback::parallelScale

protected

Definition at line 108 of file G4VtkViewer.hh.

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

• G4VtkViewer.hh