Gabriele Cosmo
174 lines
3.3 KiB
Plaintext
174 lines
3.3 KiB
Plaintext
// This code implementation is the intellectual property of
|
|
// the GEANT4 collaboration.
|
|
//
|
|
// By copying, distributing or modifying the Program (or any work
|
|
// based on the Program) you indicate your acceptance of this statement,
|
|
// and all its terms.
|
|
//
|
|
// $Id: G4CurveRayIntersection.icc,v 1.2 2000/08/28 08:57:45 gcosmo Exp $
|
|
// GEANT4 tag $Name: geant4-03-00 $
|
|
//
|
|
// --------------------------------------------------------------------
|
|
// GEANT 4 inline definitions file
|
|
//
|
|
// G4CurveRayIntersection.icc
|
|
//
|
|
// Implementation of inline methods of G4CurveRayIntersection
|
|
// --------------------------------------------------------------------
|
|
|
|
inline
|
|
void G4CurveRayIntersection::Init(G4Curve& c0, const G4Ray& r0)
|
|
{
|
|
c= &c0;
|
|
r= &r0;
|
|
d= kInfinity;
|
|
notComputed= allFlags;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
inline
|
|
const G4Ray& G4CurveRayIntersection::GetRay() const
|
|
{
|
|
return *r;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
inline
|
|
void G4CurveRayIntersection::Reset()
|
|
{
|
|
d= +kInfinity;
|
|
notComputed= uFlag|pFlag;
|
|
}
|
|
|
|
inline void
|
|
G4CurveRayIntersection::ResetPPoint(G4double u0)
|
|
{
|
|
d= 0;
|
|
u= u0;
|
|
notComputed= pFlag|dFlag;
|
|
}
|
|
|
|
inline void
|
|
G4CurveRayIntersection::Reset(const G4Point3D& p0)
|
|
{
|
|
d= 0;
|
|
p= p0;
|
|
notComputed= uFlag|dFlag;
|
|
}
|
|
|
|
inline
|
|
void G4CurveRayIntersection::Reset(G4double u0, const G4Point3D& p0)
|
|
{
|
|
d= 0;
|
|
u= u0;
|
|
p= p0;
|
|
notComputed= dFlag;
|
|
}
|
|
|
|
inline void
|
|
G4CurveRayIntersection::ResetDistance(G4double d0)
|
|
{
|
|
d= d0;
|
|
notComputed= uFlag|pFlag;
|
|
}
|
|
|
|
inline
|
|
void G4CurveRayIntersection::Reset(G4double u0, G4double d0)
|
|
{
|
|
d= d0;
|
|
u= u0;
|
|
notComputed= pFlag;
|
|
}
|
|
|
|
inline
|
|
void G4CurveRayIntersection::Reset(const G4Point3D& p0, G4double d0)
|
|
{
|
|
d= d0;
|
|
p= p0;
|
|
notComputed= uFlag;
|
|
}
|
|
|
|
inline
|
|
void G4CurveRayIntersection::Reset(G4double u0, const G4Point3D& p0,
|
|
G4double d0)
|
|
{
|
|
d= d0;
|
|
u= u0;
|
|
p= p0;
|
|
notComputed= 0;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
inline
|
|
G4double G4CurveRayIntersection::GetPPoint()
|
|
{
|
|
if (notComputed & uFlag) {
|
|
if (notComputed & pFlag) {
|
|
p= r->GetPoint(d);
|
|
notComputed &= ~pFlag;
|
|
}
|
|
u= c->GetPPoint(p);
|
|
notComputed &= ~uFlag;
|
|
}
|
|
return u;
|
|
}
|
|
|
|
inline
|
|
const G4Point3D& G4CurveRayIntersection::GetPoint()
|
|
{
|
|
if (notComputed & pFlag) {
|
|
if (notComputed & dFlag) {
|
|
p= c->GetPoint(u);
|
|
} else {
|
|
p= r->GetPoint(d);
|
|
}
|
|
notComputed &= ~pFlag;
|
|
}
|
|
return p;
|
|
}
|
|
|
|
inline
|
|
G4double G4CurveRayIntersection::GetDistance()
|
|
{
|
|
if (notComputed & dFlag) {
|
|
if (notComputed & pFlag) {
|
|
p= c->GetPoint(u);
|
|
notComputed &= ~pFlag;
|
|
}
|
|
d= r->GetPPoint(p);
|
|
notComputed &= ~dFlag;
|
|
}
|
|
return d;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
inline
|
|
void G4CurveRayIntersection::UpdateWithPointOnCurve(G4CurveRayIntersection& is)
|
|
{
|
|
if (d!=kInfinity) {
|
|
// not the first intersection
|
|
G4double dTmp= is.GetDistance();
|
|
if (dTmp < kCarTolerance || GetDistance() <= dTmp) {
|
|
// not on ray or not the closest intersection
|
|
return;
|
|
}
|
|
}
|
|
// accepted
|
|
*this= is;
|
|
}
|
|
|
|
inline
|
|
void G4CurveRayIntersection::Update(G4CurveRayIntersection& is)
|
|
{
|
|
if (c->IsBounded()) {
|
|
if (!c->IsPOn(is.GetPPoint())) {
|
|
return;
|
|
}
|
|
}
|
|
UpdateWithPointOnCurve(is);
|
|
}
|