G4QuadrangularFacet Class Reference

#include <G4QuadrangularFacet.hh>

Inheritance diagram for G4QuadrangularFacet:

Public Member Functions
	G4QuadrangularFacet (const G4ThreeVector &Pt0, const G4ThreeVector &vt1, const G4ThreeVector &vt2, const G4ThreeVector &vt3, G4FacetVertexType)
	G4QuadrangularFacet (const G4QuadrangularFacet &right)
	~G4QuadrangularFacet ()
G4QuadrangularFacet &	operator= (const G4QuadrangularFacet &right)
G4VFacet *	GetClone ()
G4ThreeVector	Distance (const G4ThreeVector &p)
G4double	Distance (const G4ThreeVector &p, G4double minDist)
G4double	Distance (const G4ThreeVector &p, G4double minDist, const G4bool outgoing)
G4double	Extent (const G4ThreeVector axis)
G4bool	Intersect (const G4ThreeVector &p, const G4ThreeVector &v, const G4bool outgoing, G4double &distance, G4double &distFromSurface, G4ThreeVector &normal)
G4ThreeVector	GetSurfaceNormal () const
G4double	GetArea ()
G4ThreeVector	GetPointOnFace () const
G4GeometryType	GetEntityType () const
G4bool	IsDefined () const
G4int	GetNumberOfVertices () const
G4ThreeVector	GetVertex (G4int i) const
void	SetVertex (G4int i, const G4ThreeVector &val)
void	SetVertices (std::vector< G4ThreeVector > *v)
G4double	GetRadius () const
G4ThreeVector	GetCircumcentre () const
Public Member Functions inherited from G4VFacet
virtual	~G4VFacet ()
G4bool	operator== (const G4VFacet &right) const
void	ApplyTranslation (const G4ThreeVector v)
std::ostream &	StreamInfo (std::ostream &os) const
G4bool	IsInside (const G4ThreeVector &p) const

Additional Inherited Members
Static Protected Attributes inherited from G4VFacet
static const G4double	dirTolerance = 1.0E-14
static const G4double	kCarTolerance

Detailed Description

Definition at line 69 of file G4QuadrangularFacet.hh.

Constructor & Destructor Documentation

G4QuadrangularFacet::G4QuadrangularFacet	(	const G4ThreeVector &	Pt0,
		const G4ThreeVector &	vt1,
		const G4ThreeVector &	vt2,
		const G4ThreeVector &	vt3,
		G4FacetVertexType	vertexType
	)

Definition at line 54 of file G4QuadrangularFacet.cc.

References ABSOLUTE, CLHEP::Hep3Vector::cross(), CLHEP::Hep3Vector::dot(), G4cout, G4endl, G4Exception(), G4TriangularFacet::GetSurfaceNormal(), JustWarning, CLHEP::Hep3Vector::mag(), CLHEP::Hep3Vector::mag2(), and CLHEP::Hep3Vector::unit().

Referenced by GetClone().

{
  G4ThreeVector e1, e2, e3;

  SetVertex(0, vt0);
  if (vertexType == ABSOLUTE)
  {
    SetVertex(1, vt1);
    SetVertex(2, vt2);
    SetVertex(3, vt3);

    e1 = vt1 - vt0;
    e2 = vt2 - vt0;
    e3 = vt3 - vt0;
  }
  else
  {
    SetVertex(1, vt0 + vt1);
    SetVertex(2, vt0 + vt2);
    SetVertex(3, vt0 + vt3);

    e1 = vt1;
    e2 = vt2;
    e3 = vt3;
  }
  G4double length1 = e1.mag();
  G4double length2 = (GetVertex(2)-GetVertex(1)).mag();
  G4double length3 = (GetVertex(3)-GetVertex(2)).mag();
  G4double length4 = e3.mag();

  G4ThreeVector normal1 = e1.cross(e2).unit();
  G4ThreeVector normal2 = e2.cross(e3).unit(); 

  bool isDefined = (length1 > kCarTolerance && length2 > kCarTolerance &&
    length3 > kCarTolerance && length4 > kCarTolerance &&
    normal1.dot(normal2) >= 0.9999999999);

  if (isDefined)
  {
    fFacet1 = G4TriangularFacet (GetVertex(0),GetVertex(1),
                                 GetVertex(2),ABSOLUTE);
    fFacet2 = G4TriangularFacet (GetVertex(0),GetVertex(2),
                                 GetVertex(3),ABSOLUTE);

    G4TriangularFacet facet3 (GetVertex(0),GetVertex(1),GetVertex(3),ABSOLUTE);
    G4TriangularFacet facet4 (GetVertex(1),GetVertex(2),GetVertex(3),ABSOLUTE);

    G4ThreeVector normal12 = fFacet1.GetSurfaceNormal()
                           + fFacet2.GetSurfaceNormal();
    G4ThreeVector normal34 = facet3.GetSurfaceNormal()
                           + facet4.GetSurfaceNormal();
    G4ThreeVector normal = 0.25 * (normal12 + normal34);

    fFacet1.SetSurfaceNormal (normal);
    fFacet2.SetSurfaceNormal (normal);

    G4ThreeVector vtmp = 0.5 * (e1 + e2);
    fCircumcentre = GetVertex(0) + vtmp;
    G4double radiusSqr = vtmp.mag2();
    fRadius = std::sqrt(radiusSqr);
  }
  else
  {
    G4Exception("G4QuadrangularFacet::G4QuadrangularFacet()",
                "GeomSolids0002", JustWarning,
                "Length of sides of facet are too small or sides not planar.");
    G4cout << G4endl;
    G4cout << "P0 = " << GetVertex(0) << G4endl;
    G4cout << "P1 = " << GetVertex(1) << G4endl;
    G4cout << "P2 = " << GetVertex(2) << G4endl;
    G4cout << "P3 = " << GetVertex(3) << G4endl;
    G4cout << "Side lengths = P0->P1" << length1 << G4endl;    
    G4cout << "Side lengths = P1->P2" << length2 << G4endl;    
    G4cout << "Side lengths = P2->P3" << length3 << G4endl;    
    G4cout << "Side lengths = P3->P0" << length4 << G4endl;    
    G4cout << G4endl;
    fRadius = 0.0;
  }
}

G4QuadrangularFacet::G4QuadrangularFacet

(

const G4QuadrangularFacet &

right

)

Definition at line 146 of file G4QuadrangularFacet.cc.

  : G4VFacet(rhs)
{
  fFacet1 = rhs.fFacet1;
  fFacet2 = rhs.fFacet2;
  fRadius = 0.0;
}

G4QuadrangularFacet::~G4QuadrangularFacet

(

)

Definition at line 140 of file G4QuadrangularFacet.cc.

{
}

Member Function Documentation

G4ThreeVector G4QuadrangularFacet::Distance

(

const G4ThreeVector &

p

)

Definition at line 181 of file G4QuadrangularFacet.cc.

References G4TriangularFacet::Distance(), and CLHEP::Hep3Vector::mag2().

Referenced by Distance().

{
  G4ThreeVector v1 = fFacet1.Distance(p);
  G4ThreeVector v2 = fFacet2.Distance(p);

  if (v1.mag2() < v2.mag2()) return v1;
  else return v2;
}

G4double G4QuadrangularFacet::Distance ( const G4ThreeVector &  p, G4double  minDist  )

virtual

Implements G4VFacet.

Definition at line 192 of file G4QuadrangularFacet.cc.

References Distance(), and CLHEP::Hep3Vector::mag().

{  
  G4double dist = Distance(p).mag();
  return dist;
}

G4double G4QuadrangularFacet::Distance ( const G4ThreeVector &  p, G4double  minDist, const G4bool  outgoing  )

virtual

Implements G4VFacet.

Definition at line 201 of file G4QuadrangularFacet.cc.

References G4VFacet::dirTolerance, Distance(), CLHEP::Hep3Vector::dot(), GetSurfaceNormal(), CLHEP::Hep3Vector::mag(), and test::v.

{
  G4double dist;

  G4ThreeVector v = Distance(p);
  G4double dir = v.dot(GetSurfaceNormal());
  if ( ((dir > dirTolerance) && (!outgoing))
    || ((dir < -dirTolerance) && outgoing))
    dist = kInfinity;
  else 
    dist = v.mag();
  return dist;
}

G4double G4QuadrangularFacet::Extent ( const G4ThreeVector  axis )

virtual

Implements G4VFacet.

Definition at line 218 of file G4QuadrangularFacet.cc.

References CLHEP::Hep3Vector::dot(), GetVertex(), and G4InuclParticleNames::sp.

{
  G4double ss  = 0;

  for (G4int i = 0; i <= 3; ++i)
  {
    G4double sp = GetVertex(i).dot(axis);
    if (sp > ss) ss = sp;
  }
  return ss;
}

G4double G4QuadrangularFacet::GetArea ( )

virtual

Implements G4VFacet.

Definition at line 266 of file G4QuadrangularFacet.cc.

References G4TriangularFacet::GetArea().

{
  G4double area = fFacet1.GetArea() + fFacet2.GetArea();
  return area;
}

G4ThreeVector G4QuadrangularFacet::GetCircumcentre ( ) const

inlinevirtual

Implements G4VFacet.

Definition at line 142 of file G4QuadrangularFacet.hh.

{
  return fCircumcentre;
}

G4VFacet * G4QuadrangularFacet::GetClone ( )

virtual

Implements G4VFacet.

Definition at line 171 of file G4QuadrangularFacet.cc.

References ABSOLUTE, test::c, G4QuadrangularFacet(), and GetVertex().

{
  G4QuadrangularFacet *c = new G4QuadrangularFacet (GetVertex(0), GetVertex(1),
                                                    GetVertex(2), GetVertex(3),
                                                    ABSOLUTE);
  return c;
}

G4String G4QuadrangularFacet::GetEntityType ( ) const

virtual

Implements G4VFacet.

Definition at line 274 of file G4QuadrangularFacet.cc.

{
  return "G4QuadrangularFacet";
}

G4int G4QuadrangularFacet::GetNumberOfVertices ( ) const

inlinevirtual

Implements G4VFacet.

Definition at line 126 of file G4QuadrangularFacet.hh.

{
  return 4;
}

G4ThreeVector G4QuadrangularFacet::GetPointOnFace ( ) const

virtual

Implements G4VFacet.

Definition at line 255 of file G4QuadrangularFacet.cc.

References G4TriangularFacet::GetPointOnFace(), gammaraytel::pr, and G4INCL::DeJongSpin::shoot().

{
  G4ThreeVector pr = (G4RandFlat::shoot(0.,1.) < 0.5)
                   ? fFacet1.GetPointOnFace() : fFacet2.GetPointOnFace();
  return pr;
}

G4double G4QuadrangularFacet::GetRadius ( ) const

inlinevirtual

Implements G4VFacet.

Definition at line 137 of file G4QuadrangularFacet.hh.

{
  return fRadius;
}

G4ThreeVector G4QuadrangularFacet::GetSurfaceNormal ( ) const

virtual

Implements G4VFacet.

Definition at line 281 of file G4QuadrangularFacet.cc.

References G4TriangularFacet::GetSurfaceNormal().

Referenced by Distance().

{
  return fFacet1.GetSurfaceNormal();
}

G4ThreeVector G4QuadrangularFacet::GetVertex ( G4int  i ) const

inlinevirtual

Implements G4VFacet.

Definition at line 131 of file G4QuadrangularFacet.hh.

References G4TriangularFacet::GetVertex().

Referenced by Extent(), and GetClone().

{
  return i == 3 ? fFacet2.GetVertex(2) : fFacet1.GetVertex(i);
}

G4bool G4QuadrangularFacet::Intersect ( const G4ThreeVector &  p, const G4ThreeVector &  v, const G4bool  outgoing, G4double &  distance, G4double &  distFromSurface, G4ThreeVector &  normal  )

virtual

Implements G4VFacet.

Definition at line 232 of file G4QuadrangularFacet.cc.

References G4TriangularFacet::Intersect(), and CLHEP::Hep3Vector::set().

{
  G4bool intersect =
    fFacet1.Intersect(p,v,outgoing,distance,distFromSurface,normal);
  if (!intersect) intersect =
    fFacet2.Intersect(p,v,outgoing,distance,distFromSurface,normal);
  if (!intersect)
  {
    distance = distFromSurface = kInfinity;
    normal.set(0,0,0);
  }
  return intersect;
}

G4bool G4QuadrangularFacet::IsDefined ( ) const

inlinevirtual

Implements G4VFacet.

Definition at line 174 of file G4QuadrangularFacet.hh.

References G4TriangularFacet::IsDefined().

{
  return fFacet1.IsDefined();
}

G4QuadrangularFacet & G4QuadrangularFacet::operator=

(

const G4QuadrangularFacet &

right

)

Definition at line 157 of file G4QuadrangularFacet.cc.

{
  if (this == &rhs)
    return *this;

  fFacet1 = rhs.fFacet1;
  fFacet2 = rhs.fFacet2;
  fRadius = 0.0;

  return *this;
}

void G4QuadrangularFacet::SetVertex ( G4int  i, const G4ThreeVector &  val  )

inlinevirtual

Implements G4VFacet.

Definition at line 147 of file G4QuadrangularFacet.hh.

References G4TriangularFacet::SetVertex().

{
  switch (i)
  {
    case 0:
      fFacet1.SetVertex(0, val);
      fFacet2.SetVertex(0, val);
      break;
    case 1:
      fFacet1.SetVertex(1, val);
      break;
    case 2:
      fFacet1.SetVertex(2, val);
      fFacet2.SetVertex(1, val);
      break;
    case 3:
      fFacet2.SetVertex(2, val);
      break;
    }
}

void G4QuadrangularFacet::SetVertices ( std::vector< G4ThreeVector > *  v )

inlinevirtual

Implements G4VFacet.

Definition at line 168 of file G4QuadrangularFacet.hh.

References G4TriangularFacet::SetVertices().

{
  fFacet1.SetVertices(v);
  fFacet2.SetVertices(v);
}

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

• G4QuadrangularFacet.hh
• G4QuadrangularFacet.cc