Gabriele Cosmo
190 lines
4.5 KiB
Plaintext
190 lines
4.5 KiB
Plaintext
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4CurveRayIntersection.icc,v 1.3 2001/07/11 09:59:33 gunter Exp $
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// GEANT4 tag $Name: geant4-05-00 $
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//
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// --------------------------------------------------------------------
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// GEANT 4 inline definitions file
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//
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// G4CurveRayIntersection.icc
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//
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// Implementation of inline methods of G4CurveRayIntersection
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// --------------------------------------------------------------------
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inline
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void G4CurveRayIntersection::Init(G4Curve& c0, const G4Ray& r0)
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{
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c= &c0;
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r= &r0;
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d= kInfinity;
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notComputed= allFlags;
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}
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//////////////////////////////////////////////////////////////////////////////
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inline
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const G4Ray& G4CurveRayIntersection::GetRay() const
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{
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return *r;
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}
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//////////////////////////////////////////////////////////////////////////////
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inline
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void G4CurveRayIntersection::Reset()
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{
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d= +kInfinity;
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notComputed= uFlag|pFlag;
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}
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inline void
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G4CurveRayIntersection::ResetPPoint(G4double u0)
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{
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d= 0;
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u= u0;
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notComputed= pFlag|dFlag;
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}
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inline void
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G4CurveRayIntersection::Reset(const G4Point3D& p0)
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{
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d= 0;
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p= p0;
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notComputed= uFlag|dFlag;
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}
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inline
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void G4CurveRayIntersection::Reset(G4double u0, const G4Point3D& p0)
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{
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d= 0;
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u= u0;
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p= p0;
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notComputed= dFlag;
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}
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inline void
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G4CurveRayIntersection::ResetDistance(G4double d0)
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{
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d= d0;
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notComputed= uFlag|pFlag;
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}
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inline
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void G4CurveRayIntersection::Reset(G4double u0, G4double d0)
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{
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d= d0;
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u= u0;
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notComputed= pFlag;
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}
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inline
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void G4CurveRayIntersection::Reset(const G4Point3D& p0, G4double d0)
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{
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d= d0;
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p= p0;
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notComputed= uFlag;
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}
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inline
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void G4CurveRayIntersection::Reset(G4double u0, const G4Point3D& p0,
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G4double d0)
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{
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d= d0;
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u= u0;
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p= p0;
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notComputed= 0;
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}
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//////////////////////////////////////////////////////////////////////////////
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inline
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G4double G4CurveRayIntersection::GetPPoint()
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{
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if (notComputed & uFlag) {
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if (notComputed & pFlag) {
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p= r->GetPoint(d);
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notComputed &= ~pFlag;
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}
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u= c->GetPPoint(p);
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notComputed &= ~uFlag;
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}
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return u;
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}
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inline
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const G4Point3D& G4CurveRayIntersection::GetPoint()
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{
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if (notComputed & pFlag) {
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if (notComputed & dFlag) {
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p= c->GetPoint(u);
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} else {
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p= r->GetPoint(d);
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}
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notComputed &= ~pFlag;
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}
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return p;
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}
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inline
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G4double G4CurveRayIntersection::GetDistance()
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{
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if (notComputed & dFlag) {
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if (notComputed & pFlag) {
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p= c->GetPoint(u);
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notComputed &= ~pFlag;
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}
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d= r->GetPPoint(p);
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notComputed &= ~dFlag;
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}
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return d;
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}
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//////////////////////////////////////////////////////////////////////////////
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inline
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void G4CurveRayIntersection::UpdateWithPointOnCurve(G4CurveRayIntersection& is)
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{
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if (d!=kInfinity) {
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// not the first intersection
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G4double dTmp= is.GetDistance();
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if (dTmp < kCarTolerance || GetDistance() <= dTmp) {
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// not on ray or not the closest intersection
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return;
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}
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}
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// accepted
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*this= is;
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}
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inline
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void G4CurveRayIntersection::Update(G4CurveRayIntersection& is)
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{
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if (c->IsBounded()) {
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if (!c->IsPOn(is.GetPPoint())) {
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return;
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}
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}
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UpdateWithPointOnCurve(is);
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}
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