#include <G4ArrowModel.hh>

Inheritance diagram for G4ArrowModel:

Collaboration diagram for G4ArrowModel:

Public Member Functions
	G4ArrowModel (G4double x1, G4double y1, G4double z1, G4double x2, G4double y2, G4double z2, G4double width, const G4Colour &colour, const G4String &description="", G4int lineSegmentsPerCircle=6)

virtual	~G4ArrowModel ()

virtual void	DescribeYourselfTo (G4VGraphicsScene &)

Public Member Functions inherited from G4VModel
	G4VModel (const G4Transform3D &modelTransformation=G4Transform3D(), const G4ModelingParameters *=0)

virtual	~G4VModel ()

const G4ModelingParameters *	GetModelingParameters () const

const G4String &	GetType () const

virtual G4String	GetCurrentDescription () const

virtual G4String	GetCurrentTag () const

const G4VisExtent &	GetExtent () const

const G4String &	GetGlobalDescription () const

const G4String &	GetGlobalTag () const

const G4Transform3D &	GetTransformation () const

void	SetModelingParameters (const G4ModelingParameters *)

void	SetExtent (const G4VisExtent &)

void	SetType (const G4String &)

void	SetGlobalDescription (const G4String &)

void	SetGlobalTag (const G4String &)

void	SetTransformation (const G4Transform3D &)

virtual G4bool	Validate (G4bool warn=true)

Additional Inherited Members
Protected Attributes inherited from G4VModel
G4String	fType

G4String	fGlobalTag

G4String	fGlobalDescription

G4VisExtent	fExtent

G4Transform3D	fTransform

const G4ModelingParameters *	fpMP

Detailed Description

Definition at line 48 of file G4ArrowModel.hh.

Constructor & Destructor Documentation

G4ArrowModel::G4ArrowModel	(	G4double	x1,
		G4double	y1,
		G4double	z1,
		G4double	x2,
		G4double	y2,
		G4double	z2,
		G4double	width,
		const G4Colour &	colour,
		const G4String &	description = `""`,
		G4int	lineSegmentsPerCircle = `6`
	)

Definition at line 52 of file G4ArrowModel.cc.

 {
   fType = "G4ArrowModel";
   fGlobalTag = fType;
   fGlobalDescription = fType + ": " + description;
   fExtent = G4VisExtent
     (std::min(x1,x2),
      std::max(x1,x2),
      std::min(y1,y2),
      std::max(y1,y2),
      std::min(z1,z2),
      std::max(z1,z2));
 
   // Force number of line segments per circle (aka number of rotation steps)
   G4int tempN = G4Polyhedron::GetNumberOfRotationSteps();
   G4Polyhedron::SetNumberOfRotationSteps(lineSegmentsPerCircle);
 
   // Make a cylinder slightly shorter than the arrow length so that it
   // doesn't stick out of the head.
   const G4double shaftLength = std::sqrt
     (std::pow(x2-x1,2)+std::pow(y2-y1,2)+std::pow(z2-z1,2));
   G4double shaftRadius = width/2.;
   // Limit the radius
   if (shaftRadius > shaftLength/100.) shaftRadius = shaftLength/100.;
   const G4double halfShaftLength = shaftLength/2.;
   const G4double halfReduction = 4.*shaftRadius;
   const G4double halfLength = halfShaftLength-halfReduction;
   G4Tubs shaft("shaft",0.,shaftRadius,halfLength,0.,twopi);
   fpShaftPolyhedron = shaft.CreatePolyhedron();
   // Move it a little so that the tail is at z = -halfShaftLength.
   fpShaftPolyhedron->Transform(G4Translate3D(0,0,-halfReduction));
 
   // Locate the head at +halfShaftLength.
   const G4int numRZ = 3;
   G4double r[] = {0,4,0};
   G4double z[] = {0,-6,-4};
   for (G4int i = 0; i < numRZ; i++) {
     r[i] *= 2.*shaftRadius;
     z[i] = halfShaftLength + z[i] * 2.*shaftRadius;
   }
   G4GenericPolycone head("head",0,twopi,numRZ,r,z);
   fpHeadPolyhedron = head.CreatePolyhedron();
 
   // Transform to position
   const G4Vector3D arrowDirection = G4Vector3D(x2-x1,y2-y1,z2-z1).unit();
   const G4double theta = arrowDirection.theta();
   const G4double phi = arrowDirection.phi();
   const G4Point3D arrowCentre(0.5*(x1+x2),0.5*(y1+y2),0.5*(z1+z2));
   const G4Transform3D tr =
     G4Translate3D(arrowCentre) * G4RotateZ3D(phi) * G4RotateY3D(theta);
   fpShaftPolyhedron->Transform(tr);
   fpHeadPolyhedron->Transform(tr);
 
   G4VisAttributes va;
   va.SetColour(colour);
   va.SetForceSolid(true);
   fpShaftPolyhedron->SetVisAttributes(va);
   fpHeadPolyhedron->SetVisAttributes(va);
 
   // Restore number of line segments per circle
   G4Polyhedron::SetNumberOfRotationSteps(tempN);
 }

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G4ArrowModel::~G4ArrowModel ( )

virtual

Definition at line 45 of file G4ArrowModel.cc.

 {
   delete fpHeadPolyhedron;
   delete fpShaftPolyhedron;
 }

Member Function Documentation

void G4ArrowModel::DescribeYourselfTo ( G4VGraphicsScene & sceneHandler )

virtual

Implements G4VModel.

Definition at line 119 of file G4ArrowModel.cc.

 {
   sceneHandler.BeginPrimitives();
   sceneHandler.AddPrimitive(*fpShaftPolyhedron);
   sceneHandler.AddPrimitive(*fpHeadPolyhedron);
   sceneHandler.EndPrimitives();
 }

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

source/geant4.10.03.p03/source/visualization/modeling/include/G4ArrowModel.hh
source/geant4.10.03.p03/source/visualization/modeling/src/G4ArrowModel.cc

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation