Import Geant4 6.2.0 source tree

This commit is contained in:
Gabriele Cosmo
2016-06-09 10:56:29 +02:00
parent 1d812b78b1
commit e083ffb441
1415 changed files with 111223 additions and 21207 deletions
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//
// ********************************************************************
// * DISCLAIMER *
// * *
// * The following disclaimer summarizes all the specific disclaimers *
// * of contributors to this software. The specific disclaimers,which *
// * govern, are listed with their locations in: *
// * http://cern.ch/geant4/license *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. *
// * *
// * 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: G4FlatSurface.cc,v 1.5 2004/05/28 13:13:36 gcosmo Exp $
// GEANT4 tag $Name: geant4-06-02 $
//
//
// --------------------------------------------------------------------
// GEANT 4 class source file
//
//
// G4FlatSurface.cc
//
// Author:
// 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp)
//
// History:
// 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4
// from original version in Jupiter-2.5.02 application.
// --------------------------------------------------------------------
#include "G4FlatSurface.hh"
//=====================================================================
//* constructors ------------------------------------------------------
G4FlatSurface::G4FlatSurface(const G4String &name,
const G4RotationMatrix &rot,
const G4ThreeVector &tlate,
const G4ThreeVector &n,
const EAxis axis0 ,
const EAxis axis1 ,
G4double axis0min,
G4double axis1min,
G4double axis0max,
G4double axis1max )
: G4VSurface(name, rot, tlate, 0, axis0, axis1,
axis0min, axis1min, axis0max, axis1max)
{
if (axis0 == kPhi && axis1 == kRho) {
G4Exception("G4FlatSurface::G4FlatSurface()", "InvalidSetup",
FatalException, "Should swap axis0 and axis1!");
}
G4ThreeVector normal = rot.inverse()*n;
fCurrentNormal.normal = normal.unit(); // in local coordinate system
fIsValidNorm = true;
SetCorners();
SetBoundaries();
}
G4FlatSurface::G4FlatSurface( const G4String &name,
G4double EndInnerRadius[2],
G4double EndOuterRadius[2],
G4double DPhi,
G4double EndPhi[2],
G4double EndZ[2],
G4int handedness )
: G4VSurface(name)
{
fHandedness = handedness; // +z = +ve, -z = -ve
fAxis[0] = kRho; // in local coordinate system
fAxis[1] = kPhi;
G4int i = (handedness < 0 ? 0 : 1);
fAxisMin[0] = EndInnerRadius[i]; // Inner-hype radius at z=0
fAxisMax[0] = EndOuterRadius[i]; // Outer-hype radius at z=0
fAxisMin[1] = -0.5*DPhi;
fAxisMax[1] = -fAxisMin[1];
fCurrentNormal.normal.set(0, 0, (fHandedness < 0 ? -1 : 1));
// Unit vector, in local coordinate system
fRot.rotateZ(EndPhi[i]);
fTrans.set(0, 0, EndZ[i]);
fIsValidNorm = true;
SetCorners();
SetBoundaries();
}
//=====================================================================
//* destructor --------------------------------------------------------
G4FlatSurface::~G4FlatSurface()
{
}
//=====================================================================
//* GetNormal ---------------------------------------------------------
G4ThreeVector G4FlatSurface::GetNormal(const G4ThreeVector & /* xx */ ,
G4bool isGlobal)
{
if (isGlobal) {
return ComputeGlobalDirection(fCurrentNormal.normal);
} else {
return fCurrentNormal.normal;
}
}
//=====================================================================
//* DistanceToSurface(p, v) -------------------------------------------
G4int G4FlatSurface::DistanceToSurface(const G4ThreeVector &gp,
const G4ThreeVector &gv,
G4ThreeVector gxx[],
G4double distance[],
G4int areacode[],
G4bool isvalid[],
EValidate validate)
{
fCurStatWithV.ResetfDone(validate, &gp, &gv);
if (fCurStatWithV.IsDone()) {
G4int i;
for (i=0; i<fCurStatWithV.GetNXX(); i++) {
gxx[i] = fCurStatWithV.GetXX(i);
distance[i] = fCurStatWithV.GetDistance(i);
areacode[i] = fCurStatWithV.GetAreacode(i);
isvalid[i] = fCurStatWithV.IsValid(i);
}
return fCurStatWithV.GetNXX();
} else {
// initialize
G4int i;
for (i=0; i<2; i++) {
distance[i] = kInfinity;
areacode[i] = sOutside;
isvalid[i] = false;
gxx[i].set(kInfinity, kInfinity, kInfinity);
}
}
G4ThreeVector p = ComputeLocalPoint(gp);
G4ThreeVector v = ComputeLocalDirection(gv);
//
// special case!
// if p is on surface, distance = 0.
//
if (fabs(p.z()) == 0.) { // if p is on the plane
distance[0] = 0;
G4ThreeVector xx = p;
gxx[0] = ComputeGlobalPoint(xx);
if (validate == kValidateWithTol) {
areacode[0] = GetAreaCode(xx);
if (!IsOutside(areacode[0])) {
isvalid[0] = true;
}
} else if (validate == kValidateWithoutTol) {
areacode[0] = GetAreaCode(xx, false);
if (IsInside(areacode[0])) {
isvalid[0] = true;
}
} else { // kDontValidate
areacode[0] = sInside;
isvalid[0] = true;
}
return 1;
}
//
// special case end
//
if (v.z() == 0) {
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 0, validate, &gp, &gv);
return 0;
}
distance[0] = - (p.z() / v.z());
G4ThreeVector xx = p + distance[0]*v;
gxx[0] = ComputeGlobalPoint(xx);
if (validate == kValidateWithTol) {
areacode[0] = GetAreaCode(xx);
if (!IsOutside(areacode[0])) {
if (distance[0] >= 0) isvalid[0] = true;
}
} else if (validate == kValidateWithoutTol) {
areacode[0] = GetAreaCode(xx, false);
if (IsInside(areacode[0])) {
if (distance[0] >= 0) isvalid[0] = true;
}
} else { // kDontValidate
areacode[0] = sInside;
if (distance[0] >= 0) isvalid[0] = true;
}
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 1, validate, &gp, &gv);
#ifdef G4SPECSDEBUG
G4cerr << "ERROR - G4FlatSurface::DistanceToSurface(p,v)" << G4endl;
G4cerr << " Name : " << GetName() << G4endl;
G4cerr << " xx : " << xx << G4endl;
G4cerr << " gxx[0] : " << gxx[0] << G4endl;
G4cerr << " dist[0] : " << distance[0] << G4endl;
G4cerr << " areacode[0] : " << areacode[0] << G4endl;
G4cerr << " isvalid[0] : " << isvalid[0] << G4endl;
}
#endif
return 1;
}
//=====================================================================
//* DistanceToSurface(p) ----------------------------------------------
G4int G4FlatSurface::DistanceToSurface(const G4ThreeVector &gp,
G4ThreeVector gxx[],
G4double distance[],
G4int areacode[])
{
// Calculate distance to plane in local coordinate,
// then return distance and global intersection points.
//
fCurStat.ResetfDone(kDontValidate, &gp);
if (fCurStat.IsDone()) {
G4int i;
for (i=0; i<fCurStat.GetNXX(); i++) {
gxx[i] = fCurStat.GetXX(i);
distance[i] = fCurStat.GetDistance(i);
areacode[i] = fCurStat.GetAreacode(i);
}
return fCurStat.GetNXX();
} else {
// initialize
G4int i;
for (i=0; i<2; i++) {
distance[i] = kInfinity;
areacode[i] = sOutside;
gxx[i].set(kInfinity, kInfinity, kInfinity);
}
}
G4ThreeVector p = ComputeLocalPoint(gp);
G4ThreeVector xx;
// The plane is placed on origin with making its normal
// parallel to z-axis.
if (fabs(p.z()) <= 0.5 * kCarTolerance) { // if p is on the plane, return 1
distance[0] = 0;
xx = p;
} else {
distance[0] = fabs(p.z());
xx.set(p.x(), p.y(), 0);
}
gxx[0] = ComputeGlobalPoint(xx);
areacode[0] = sInside;
G4bool isvalid = true;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid, 1, kDontValidate, &gp);
return 1;
}
//=====================================================================
//* GetAreaCode -------------------------------------------------------
G4int G4FlatSurface::GetAreaCode(const G4ThreeVector &xx,
G4bool withTol)
{
static const G4double rtol = 0.5*kRadTolerance;
G4int areacode = sInside;
if (fAxis[0] == kRho && fAxis[1] == kPhi) {
G4int rhoaxis = 0;
// G4int phiaxis = 0;
G4ThreeVector dphimin; // direction of phi-minimum boundary
G4ThreeVector dphimax; // direction of phi-maximum boundary
dphimin = GetCorner(sCMax1Min);
dphimax = GetCorner(sCMax1Max);
if (withTol) {
G4bool isoutside = false;
// test boundary of rho-axis
if (xx.getRho() <= fAxisMin[rhoaxis] + rtol) {
areacode |= (sAxis0 & (sAxisRho | sAxisMin)) | sBoundary; // rho-min
if (xx.getRho() < fAxisMin[rhoaxis] - rtol) isoutside = true;
} else if (xx.getRho() >= fAxisMax[rhoaxis] - rtol) {
areacode |= (sAxis0 & (sAxisRho | sAxisMax)) | sBoundary; // rho-max
if (xx.getRho() > fAxisMax[rhoaxis] + rtol) isoutside = true;
}
// test boundary of phi-axis
if (AmIOnLeftSide(xx, dphimin) >= 0) { // xx is on dphimin
areacode |= (sAxis1 & (sAxisPhi | sAxisMin));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
if (AmIOnLeftSide(xx, dphimin) > 0) isoutside = true;
} else if (AmIOnLeftSide(xx, dphimax) <= 0) { // xx is on dphimax
areacode |= (sAxis1 & (sAxisPhi | sAxisMax));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
if (AmIOnLeftSide(xx, dphimax) < 0) isoutside = true;
}
// if isoutside = true, clear inside bit.
// if not on boundary, add axis information.
if (isoutside) {
G4int tmpareacode = areacode & (~sInside);
areacode = tmpareacode;
} else if ((areacode & sBoundary) != sBoundary) {
areacode |= (sAxis0 & sAxisRho) | (sAxis1 & sAxisPhi);
}
} else {
// out of boundary of rho-axis
if (xx.getRho() < fAxisMin[rhoaxis]) {
areacode |= (sAxis0 & (sAxisRho | sAxisMin)) | sBoundary;
} else if (xx.getRho() > fAxisMax[rhoaxis]) {
areacode |= (sAxis0 & (sAxisRho | sAxisMax)) | sBoundary;
}
// out of boundary of phi-axis
if (AmIOnLeftSide(xx, dphimin, false) >= 0) { // xx is leftside or
areacode |= (sAxis1 & (sAxisPhi | sAxisMin)) ; // boundary of dphimin
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
} else if (AmIOnLeftSide(xx, dphimax, false) <= 0) { // xx is rightside or
areacode |= (sAxis1 & (sAxisPhi | sAxisMax)) ; // boundary of dphimax
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
}
if ((areacode & sBoundary) != sBoundary) {
areacode |= (sAxis0 & sAxisRho) | (sAxis1 & sAxisPhi);
}
}
return areacode;
} else {
G4cerr << "ERROR - G4FlatSurface::GetAreaCode()" << G4endl
<< " fAxis[0] = " << fAxis[0] << G4endl
<< " fAxis[1] = " << fAxis[1] << G4endl;
G4Exception("G4FlatSurface::GetAreaCode()", "NotImplemented",
FatalException, "Feature NOT implemented !");
}
return areacode;
}
//=====================================================================
//* SetCorners --------------------------------------------------------
void G4FlatSurface::SetCorners()
{
// Set Corner points in local coodinate.
if (fAxis[0] == kRho && fAxis[1] == kPhi) {
G4int rhoaxis = 0; // kRho
G4int phiaxis = 1; // kPhi
G4double x, y, z;
// corner of Axis0min and Axis1min
x = fAxisMin[rhoaxis]*cos(fAxisMin[phiaxis]);
y = fAxisMin[rhoaxis]*sin(fAxisMin[phiaxis]);
z = 0;
SetCorner(sCMin1Min, x, y, z);
// corner of Axis0max and Axis1min
x = fAxisMax[rhoaxis]*cos(fAxisMin[phiaxis]);
y = fAxisMax[rhoaxis]*sin(fAxisMin[phiaxis]);
z = 0;
SetCorner(sCMax1Min, x, y, z);
// corner of Axis0max and Axis1max
x = fAxisMax[rhoaxis]*cos(fAxisMax[phiaxis]);
y = fAxisMax[rhoaxis]*sin(fAxisMax[phiaxis]);
z = 0;
SetCorner(sCMax1Max, x, y, z);
// corner of Axis0min and Axis1max
x = fAxisMin[rhoaxis]*cos(fAxisMax[phiaxis]);
y = fAxisMin[rhoaxis]*sin(fAxisMax[phiaxis]);
z = 0;
SetCorner(sCMin1Max, x, y, z);
} else {
G4cerr << "ERROR - G4FlatSurface::SetCorners()" << G4endl
<< " fAxis[0] = " << fAxis[0] << G4endl
<< " fAxis[1] = " << fAxis[1] << G4endl;
G4Exception("G4FlatSurface::SetCorners()", "NotImplemented",
FatalException, "Feature NOT implemented !");
}
}
//=====================================================================
//* SetBoundaries() ---------------------------------------------------
void G4FlatSurface::SetBoundaries()
{
// Set direction-unit vector of phi-boundary-lines in local coodinate.
// Don't call the function twice.
if (fAxis[0] == kRho && fAxis[1] == kPhi) {
G4ThreeVector direction;
// sAxis0 & sAxisMin
direction = GetCorner(sCMin1Max) - GetCorner(sCMin1Min);
direction = direction.unit();
SetBoundary(sAxis0 & (sAxisPhi | sAxisMin), direction,
GetCorner(sCMin1Min), sAxisPhi);
// sAxis0 & sAxisMax
direction = GetCorner(sCMax1Max) - GetCorner(sCMax1Min);
direction = direction.unit();
SetBoundary(sAxis0 & (sAxisPhi | sAxisMax), direction,
GetCorner(sCMax1Min), sAxisPhi);
// sAxis1 & sAxisMin
direction = GetCorner(sCMax1Min) - GetCorner(sCMin1Min);
direction = direction.unit();
SetBoundary(sAxis1 & (sAxisRho | sAxisMin), direction,
GetCorner(sCMin1Min), sAxisRho);
// sAxis1 & sAxisMax
direction = GetCorner(sCMax1Max) - GetCorner(sCMin1Max);
direction = direction.unit();
SetBoundary(sAxis1 & (sAxisRho | sAxisMax), direction,
GetCorner(sCMin1Max), sAxisPhi);
} else {
G4cerr << "ERROR - G4FlatSurface::SetBoundaries()" << G4endl
<< " fAxis[0] = " << fAxis[0] << G4endl
<< " fAxis[1] = " << fAxis[1] << G4endl;
G4Exception("G4FlatSurface::SetBoundaries()", "NotImplemented",
FatalException, "Feature NOT implemented !");
}
}
@@ -0,0 +1,912 @@
//
// ********************************************************************
// * DISCLAIMER *
// * *
// * The following disclaimer summarizes all the specific disclaimers *
// * of contributors to this software. The specific disclaimers,which *
// * govern, are listed with their locations in: *
// * http://cern.ch/geant4/license *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. *
// * *
// * 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: G4HyperbolicSurface.cc,v 1.5 2004/05/28 13:13:36 gcosmo Exp $
// GEANT4 tag $Name: geant4-06-02 $
//
//
// --------------------------------------------------------------------
// GEANT 4 class source file
//
//
// G4HyperbolicSurface.cc
//
// Author:
// 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp)
//
// History:
// 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4
// from original version in Jupiter-2.5.02 application.
// --------------------------------------------------------------------
#include "G4HyperbolicSurface.hh"
//=====================================================================
//* constructors ------------------------------------------------------
G4HyperbolicSurface::G4HyperbolicSurface(const G4String &name,
const G4RotationMatrix &rot,
const G4ThreeVector &tlate,
const G4int handedness,
const G4double kappa,
const G4double tanstereo,
const G4double r0,
const EAxis axis0,
const EAxis axis1,
G4double axis0min,
G4double axis1min,
G4double axis0max,
G4double axis1max )
: G4VSurface(name, rot, tlate, handedness, axis0, axis1,
axis0min, axis1min, axis0max, axis1max),
fKappa(kappa), fTanStereo(tanstereo),
fTan2Stereo(tanstereo*tanstereo), fR0(r0), fR02(r0*r0)
{
if (axis0 == kZAxis && axis1 == kPhi) {
G4Exception("G4HyperbolicSurface::G4HyperbolicSurface()", "InvalidSetup",
FatalException, "Should swap axis0 and axis1!");
}
fInside.gp.set(kInfinity, kInfinity, kInfinity);
fInside.inside = kOutside;
fIsValidNorm = false;
SetCorners();
SetBoundaries();
}
G4HyperbolicSurface::G4HyperbolicSurface(const G4String &name,
G4double EndInnerRadius[2],
G4double EndOuterRadius[2],
G4double DPhi,
G4double EndPhi[2],
G4double EndZ[2],
G4double InnerRadius,
G4double OuterRadius,
G4double Kappa,
G4double TanInnerStereo,
G4double TanOuterStereo,
G4int handedness)
: G4VSurface(name)
{
fHandedness = handedness; // +z = +ve, -z = -ve
fAxis[0] = kPhi;
fAxis[1] = kZAxis;
fAxisMin[0] = kInfinity; // we cannot fix boundary min of Phi,
fAxisMax[0] = kInfinity; // because it depends on z.
fAxisMin[1] = EndZ[0];
fAxisMax[1] = EndZ[1];
fKappa = Kappa;
if (handedness < 0) { // inner hyperbolic surface
fTanStereo = TanInnerStereo;
fR0 = InnerRadius;
} else { // outer hyperbolic surface
fTanStereo = TanOuterStereo;
fR0 = OuterRadius;
}
fTan2Stereo = fTanStereo * fTanStereo;
fR02 = fR0 * fR0;
fTrans.set(0, 0, 0);
fIsValidNorm = false;
fInside.gp.set(kInfinity, kInfinity, kInfinity);
fInside.inside = kOutside;
SetCorners(EndInnerRadius, EndOuterRadius, DPhi, EndPhi, EndZ) ;
SetBoundaries();
}
//=====================================================================
//* destructor --------------------------------------------------------
G4HyperbolicSurface::~G4HyperbolicSurface()
{
}
//=====================================================================
//* GetNormal ---------------------------------------------------------
G4ThreeVector G4HyperbolicSurface::GetNormal(const G4ThreeVector &tmpxx,
G4bool isGlobal)
{
// GetNormal returns a normal vector at a surface (or very close
// to surface) point at tmpxx.
// If isGlobal=true, it returns the normal in global coordinate.
//
G4ThreeVector xx;
if (isGlobal) {
xx = ComputeLocalPoint(tmpxx);
if ((xx - fCurrentNormal.p).mag() < 0.5 * kCarTolerance) {
return ComputeGlobalDirection(fCurrentNormal.normal);
}
} else {
xx = tmpxx;
if (xx == fCurrentNormal.p) {
return fCurrentNormal.normal;
}
}
fCurrentNormal.p = xx;
G4ThreeVector normal( xx.x(), xx.y(), -xx.z() * fTan2Stereo);
normal *= fHandedness;
normal = normal.unit();
if (isGlobal) {
fCurrentNormal.normal = ComputeLocalDirection(normal);
} else {
fCurrentNormal.normal = normal;
}
return fCurrentNormal.normal;
}
//=====================================================================
//* Inside() ----------------------------------------------------------
EInside G4HyperbolicSurface::Inside(const G4ThreeVector &gp)
{
// Inside returns
static const G4double halftol = 0.5 * kRadTolerance;
if (fInside.gp == gp) {
return fInside.inside;
}
fInside.gp = gp;
G4ThreeVector p = ComputeLocalPoint(gp);
if (p.mag() < DBL_MIN) {
fInside.inside = kOutside;
return fInside.inside;
}
G4double rhohype = GetRhoAtPZ(p);
G4double distanceToOut = fHandedness * (rhohype - p.getRho());
// +ve : inside
if (distanceToOut < -halftol) {
fInside.inside = kOutside;
} else {
G4int areacode = GetAreaCode(p);
if (IsOutside(areacode)) {
fInside.inside = kOutside;
} else if (IsBoundary(areacode)) {
fInside.inside = kSurface;
} else if (IsInside(areacode)) {
if (distanceToOut <= halftol) {
fInside.inside = kSurface;
} else {
fInside.inside = kInside;
}
} else {
G4cout << "WARNING - G4HyperbolicSurface::Inside()" << G4endl
<< " Invalid option !" << G4endl
<< " name, areacode, distanceToOut = "
<< GetName() << ", " << std::hex << areacode << std::dec << ", "
<< distanceToOut << G4endl;
}
}
return fInside.inside;
}
//=====================================================================
//* DistanceToSurface -------------------------------------------------
G4int G4HyperbolicSurface::DistanceToSurface(const G4ThreeVector &gp,
const G4ThreeVector &gv,
G4ThreeVector gxx[],
G4double distance[],
G4int areacode[],
G4bool isvalid[],
EValidate validate)
{
//
// Decide if and where a line intersects with a hyperbolic
// surface (of infinite extent)
//
// Arguments:
// p - (in) Point on trajectory
// v - (in) Vector along trajectory
// r2 - (in) Square of radius at z = 0
// tan2phi - (in) tan(stereo)**2
// s - (out) Up to two points of intersection, where the
// intersection point is p + s*v, and if there are
// two intersections, s[0] < s[1]. May be negative.
// Returns:
// The number of intersections. If 0, the trajectory misses.
//
//
// Equation of a line:
//
// x = x0 + s*tx y = y0 + s*ty z = z0 + s*tz
//
// Equation of a hyperbolic surface:
//
// x**2 + y**2 = r**2 + (z*tanPhi)**2
//
// Solution is quadratic:
//
// a*s**2 + b*s + c = 0
//
// where:
//
// a = tx**2 + ty**2 - (tz*tanPhi)**2
//
// b = 2*( x0*tx + y0*ty - z0*tz*tanPhi**2 )
//
// c = x0**2 + y0**2 - r**2 - (z0*tanPhi)**2
//
fCurStatWithV.ResetfDone(validate, &gp, &gv);
if (fCurStatWithV.IsDone()) {
G4int i;
for (i=0; i<fCurStatWithV.GetNXX(); i++) {
gxx[i] = fCurStatWithV.GetXX(i);
distance[i] = fCurStatWithV.GetDistance(i);
areacode[i] = fCurStatWithV.GetAreacode(i);
isvalid[i] = fCurStatWithV.IsValid(i);
}
return fCurStatWithV.GetNXX();
} else {
// initialize
G4int i;
for (i=0; i<2; i++) {
distance[i] = kInfinity;
areacode[i] = sOutside;
isvalid[i] = false;
gxx[i].set(kInfinity, kInfinity, kInfinity);
}
}
G4ThreeVector p = ComputeLocalPoint(gp);
G4ThreeVector v = ComputeLocalDirection(gv);
G4ThreeVector xx[2];
//
// special case! p is on origin.
//
if (p.mag() == 0) {
// p is origin.
// unique solution of 2-dimension question in r-z plane
// Equations:
// r^2 = fR02 + z^2*fTan2Stere0
// r = beta*z
// where
// beta = vrho / vz
// Solution (z value of intersection point):
// xxz = +- sqrt (fR02 / (beta^2 - fTan2Stereo))
//
G4double vz = v.z();
G4double absvz = abs(vz);
G4double vrho = v.getRho();
G4double vslope = vrho/vz;
G4double vslope2 = vslope * vslope;
if (vrho == 0 || (vrho/absvz) <= (absvz*fabs(fTanStereo)/absvz)) {
// vz/vrho is bigger than slope of asymptonic line
distance[0] = kInfinity;
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 0, validate, &gp, &gv);
return 0;
}
if (vz) {
G4double xxz = sqrt(fR02 / (vslope2 - fTan2Stereo))
* (vz / fabs(vz)) ;
G4double t = xxz / vz;
xx[0].set(t*v.x(), t*v.y(), xxz);
} else {
// p.z = 0 && v.z =0
xx[0].set(v.x()*fR0, v.y()*fR0, 0); // v is a unit vector.
}
distance[0] = xx[0].mag();
gxx[0] = ComputeGlobalPoint(xx[0]);
if (validate == kValidateWithTol) {
areacode[0] = GetAreaCode(xx[0]);
if (!IsOutside(areacode[0])) {
if (distance[0] >= 0) isvalid[0] = true;
}
} else if (validate == kValidateWithoutTol) {
areacode[0] = GetAreaCode(xx[0], false);
if (IsInside(areacode[0])) {
if (distance[0] >= 0) isvalid[0] = true;
}
} else { // kDontValidate
areacode[0] = sInside;
if (distance[0] >= 0) isvalid[0] = true;
}
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 1, validate, &gp, &gv);
return 1;
}
//
// special case end.
//
G4double a = v.x()*v.x() + v.y()*v.y() - v.z()*v.z()*fTan2Stereo;
G4double b = 2.0 * ( p.x() * v.x() + p.y() * v.y() - p.z() * v.z() * fTan2Stereo );
G4double c = p.x()*p.x() + p.y()*p.y() - fR02 - p.z()*p.z()*fTan2Stereo;
G4double D = b*b - 4*a*c; //discriminant
if (fabs(a) < DBL_MIN) {
if (fabs(b) > DBL_MIN) { // single solution
distance[0] = -c/b;
xx[0] = p + distance[0]*v;
gxx[0] = ComputeGlobalPoint(xx[0]);
if (validate == kValidateWithTol) {
areacode[0] = GetAreaCode(xx[0]);
if (!IsOutside(areacode[0])) {
if (distance[0] >= 0) isvalid[0] = true;
}
} else if (validate == kValidateWithoutTol) {
areacode[0] = GetAreaCode(xx[0], false);
if (IsInside(areacode[0])) {
if (distance[0] >= 0) isvalid[0] = true;
}
} else { // kDontValidate
areacode[0] = sInside;
if (distance[0] >= 0) isvalid[0] = true;
}
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 1, validate, &gp, &gv);
return 1;
} else {
// if a=b=0 and c != 0, p is origin and v is parallel to asymptotic line.
// if a=b=c=0, p is on surface and v is paralell to stereo wire.
// return distance = infinity.
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 0, validate, &gp, &gv);
return 0;
}
} else if (D > DBL_MIN) { // double solutions
D = sqrt(D);
G4double factor = 0.5/a;
G4double tmpdist[2] = {kInfinity, kInfinity};
G4ThreeVector tmpxx[2] ;
G4int tmpareacode[2] = {sOutside, sOutside};
G4bool tmpisvalid[2] = {false, false};
G4int i;
for (i=0; i<2; i++) {
tmpdist[i] = factor*(-b - D);
D = -D;
tmpxx[i] = p + tmpdist[i]*v;
if (validate == kValidateWithTol) {
tmpareacode[i] = GetAreaCode(tmpxx[i]);
if (!IsOutside(tmpareacode[i])) {
if (tmpdist[i] >= 0) tmpisvalid[i] = true;
continue;
}
} else if (validate == kValidateWithoutTol) {
tmpareacode[i] = GetAreaCode(tmpxx[i], false);
if (IsInside(tmpareacode[i])) {
if (tmpdist[i] >= 0) tmpisvalid[i] = true;
continue;
}
} else { // kDontValidate
tmpareacode[i] = sInside;
if (tmpdist[i] >= 0) tmpisvalid[i] = true;
continue;
}
}
if (tmpdist[0] <= tmpdist[1]) {
distance[0] = tmpdist[0];
distance[1] = tmpdist[1];
xx[0] = tmpxx[0];
xx[1] = tmpxx[1];
gxx[0] = ComputeGlobalPoint(tmpxx[0]);
gxx[1] = ComputeGlobalPoint(tmpxx[1]);
areacode[0] = tmpareacode[0];
areacode[1] = tmpareacode[1];
isvalid[0] = tmpisvalid[0];
isvalid[1] = tmpisvalid[1];
} else {
distance[0] = tmpdist[1];
distance[1] = tmpdist[0];
xx[0] = tmpxx[1];
xx[1] = tmpxx[0];
gxx[0] = ComputeGlobalPoint(tmpxx[1]);
gxx[1] = ComputeGlobalPoint(tmpxx[0]);
areacode[0] = tmpareacode[1];
areacode[1] = tmpareacode[0];
isvalid[0] = tmpisvalid[1];
isvalid[1] = tmpisvalid[0];
}
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 2, validate, &gp, &gv);
fCurStatWithV.SetCurrentStatus(1, gxx[1], distance[1], areacode[1],
isvalid[1], 2, validate, &gp, &gv);
return 2;
} else {
// if D<0, no solution
// if D=0, just grazing the surfaces, return kInfinity
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 0, validate, &gp, &gv);
return 0;
}
G4Exception("G4HyperbolicSurface::DistanceToSurface(p,v)",
"InvalidCondition", FatalException, "Illegal operation !");
return 1;
}
//=====================================================================
//* DistanceToSurface -------------------------------------------------
G4int G4HyperbolicSurface::DistanceToSurface(const G4ThreeVector &gp,
G4ThreeVector gxx[],
G4double distance[],
G4int areacode[])
{
// Find the approximate distance of a point of a hyperbolic surface.
// The distance must be an underestimate.
// It will also be nice (although not necessary) that the estimate is
// always finite no matter how close the point is.
//
// We arranged G4Hype::ApproxDistOutside and G4Hype::ApproxDistInside
// for this function. See these discriptions.
static const G4double halftol = 0.5 * kRadTolerance;
fCurStat.ResetfDone(kDontValidate, &gp);
if (fCurStat.IsDone()) {
for (G4int i=0; i<fCurStat.GetNXX(); i++) {
gxx[i] = fCurStat.GetXX(i);
distance[i] = fCurStat.GetDistance(i);
areacode[i] = fCurStat.GetAreacode(i);
}
return fCurStat.GetNXX();
} else {
// initialize
for (G4int i=0; i<2; i++) {
distance[i] = kInfinity;
areacode[i] = sOutside;
gxx[i].set(kInfinity, kInfinity, kInfinity);
}
}
G4ThreeVector p = ComputeLocalPoint(gp);
G4ThreeVector xx;
//
// special case!
// If p is on surface, return distance = 0 immediatery .
//
G4ThreeVector lastgxx[2];
G4double distfromlast[2];
for (G4int i=0; i<2; i++) {
lastgxx[i] = fCurStatWithV.GetXX(i);
distfromlast[i] = (gp - lastgxx[i]).mag();
}
if ((gp - lastgxx[0]).mag() < halftol || (gp - lastgxx[1]).mag() < halftol) {
// last winner, or last poststep point is on the surface.
xx = p;
gxx[0] = gp;
distance[0] = 0;
G4bool isvalid = true;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid, 1, kDontValidate, &gp);
return 1;
}
//
// special case end
//
G4double prho = p.getRho();
G4double pz = fabs(p.z()); // use symmetry
G4double r1 = sqrt(fR02 + pz * pz * fTan2Stereo);
G4ThreeVector pabsz(p.x(), p.y(), pz);
if (prho > r1 + halftol) { // p is outside of Hyperbolic surface
// First point xx1
G4double t = r1 / prho;
G4ThreeVector xx1(t * pabsz.x(), t * pabsz.y() , pz);
// Second point xx2
G4double z2 = (prho * fTanStereo + pz) / (1 + fTan2Stereo);
G4double r2 = sqrt(fR02 + z2 * z2 * fTan2Stereo);
t = r2 / prho;
G4ThreeVector xx2(t * pabsz.x(), t * pabsz.y() , z2);
G4double len = (xx2 - xx1).mag();
if (len < DBL_MIN) {
// xx2 = xx1?? I guess we
// must have really bracketed the normal
distance[0] = (pabsz - xx1).mag();
xx = xx1;
} else {
distance[0] = DistanceToLine(pabsz, xx1, (xx2 - xx1) , xx);
}
} else if (prho < r1 - halftol) { // p is inside of Hyperbolic surface.
// First point xx1
G4double t;
G4ThreeVector xx1;
if (prho < DBL_MIN) {
xx1.set(r1, 0. , pz);
} else {
t = r1 / prho;
xx1.set(t * pabsz.x(), t * pabsz.y() , pz);
}
// dr, dz is tangential vector of Hyparbolic surface at xx1
// dr = r, dz = z*tan2stereo
G4double dr = pz * fTan2Stereo;
G4double dz = r1;
G4double tanbeta = dr / dz;
G4double pztanbeta = pz * tanbeta;
// Second point xx2
// xx2 is intersection between x-axis and tangential vector
G4double r2 = r1 - pztanbeta;
G4ThreeVector xx2;
if (prho < DBL_MIN) {
xx2.set(r2, 0. , 0.);
} else {
t = r2 / prho;
xx2.set(t * pabsz.x(), t * pabsz.y() , 0.);
}
G4ThreeVector d = xx2 - xx1;
distance[0] = DistanceToLine(pabsz, xx1, d, xx);
} else { // p is on Hyperbolic surface.
distance[0] = 0;
xx.set(p.x(), p.y(), pz);
}
if (p.z() < 0) {
G4ThreeVector tmpxx(xx.x(), xx.y(), -xx.z());
xx = tmpxx;
}
gxx[0] = ComputeGlobalPoint(xx);
areacode[0] = sInside;
G4bool isvalid = true;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid, 1, kDontValidate, &gp);
return 1;
}
//=====================================================================
//* GetAreaCode -------------------------------------------------------
G4int G4HyperbolicSurface::GetAreaCode(const G4ThreeVector &xx,
G4bool withTol)
{
static const G4double ctol = 0.5 * kCarTolerance;
G4int areacode = sInside;
if ((fAxis[0] == kPhi && fAxis[1] == kZAxis)) {
//G4int phiaxis = 0;
G4int zaxis = 1;
if (withTol) {
G4bool isoutside = false;
G4int phiareacode = GetAreaCodeInPhi(xx);
G4bool isoutsideinphi = IsOutside(phiareacode);
// test boundary of phiaxis
if ((phiareacode & sAxisMin) == sAxisMin) {
areacode |= (sAxis0 & (sAxisPhi | sAxisMin)) | sBoundary;
if (isoutsideinphi) isoutside = true;
} else if ((phiareacode & sAxisMax) == sAxisMax) {
areacode |= (sAxis0 & (sAxisPhi | sAxisMax)) | sBoundary;
if (isoutsideinphi) isoutside = true;
}
// test boundary of zaxis
if (xx.z() < fAxisMin[zaxis] + ctol) {
areacode |= (sAxis1 & (sAxisZ | sAxisMin));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
if (xx.z() <= fAxisMin[zaxis] - ctol) isoutside = true;
} else if (xx.z() > fAxisMax[zaxis] - ctol) {
areacode |= (sAxis1 & (sAxisZ | sAxisMax));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
if (xx.z() >= fAxisMax[zaxis] + ctol) isoutside = true;
}
// if isoutside = true, clear sInside bit.
// if not on boundary, add boundary information.
if (isoutside) {
G4int tmpareacode = areacode & (~sInside);
areacode = tmpareacode;
} else if ((areacode & sBoundary) != sBoundary) {
areacode |= (sAxis0 & sAxisPhi) | (sAxis1 & sAxisZ);
}
return areacode;
} else {
G4int phiareacode = GetAreaCodeInPhi(xx, false);
// test boundary of z-axis
if (xx.z() < fAxisMin[zaxis]) {
areacode |= (sAxis1 & (sAxisZ | sAxisMin)) | sBoundary;
} else if (xx.z() > fAxisMax[zaxis]) {
areacode |= (sAxis1 & (sAxisZ | sAxisMax)) | sBoundary;
}
// boundary of phi-axis
if (phiareacode == sAxisMin) {
areacode |= (sAxis0 & (sAxisPhi | sAxisMin));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
} else if (phiareacode == sAxisMax) {
areacode |= (sAxis0 & (sAxisPhi | sAxisMax));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
}
// if not on boundary, add boundary information.
if ((areacode & sBoundary) != sBoundary) {
areacode |= (sAxis0 & sAxisPhi) | (sAxis1 & sAxisZ);
}
return areacode;
}
} else {
G4cerr << "ERROR - G4HyperbolicSurface::GetAreaCode()" << G4endl
<< " fAxis[0] = " << fAxis[0] << G4endl
<< " fAxis[1] = " << fAxis[1] << G4endl;
G4Exception("G4HyperbolicSurface::GetAreaCode()",
"NotImplemented", FatalException,
"Feature NOT implemented !");
}
return areacode;
}
//=====================================================================
//* GetAreaCodeInPhi --------------------------------------------------
G4int G4HyperbolicSurface::GetAreaCodeInPhi(const G4ThreeVector &xx,
G4bool withTol)
{
G4ThreeVector lowerlimit; // lower phi-boundary limit at z = xx.z()
G4ThreeVector upperlimit; // upper phi-boundary limit at z = xx.z()
lowerlimit = GetBoundaryAtPZ(sAxis0 & sAxisMin, xx);
upperlimit = GetBoundaryAtPZ(sAxis0 & sAxisMax, xx);
G4int areacode = sInside;
G4bool isoutside = false;
if (withTol) {
if (AmIOnLeftSide(xx, lowerlimit) >= 0) { // xx is on lowerlimit
areacode |= (sAxisMin | sBoundary);
if (AmIOnLeftSide(xx, lowerlimit) > 0) isoutside = true;
} else if (AmIOnLeftSide(xx, upperlimit) <= 0) { // xx is on upperlimit
areacode |= (sAxisMax | sBoundary);
if (AmIOnLeftSide(xx, upperlimit) < 0) isoutside = true;
}
// if isoutside = true, clear inside bit.
if (isoutside) {
G4int tmpareacode = areacode & (~sInside);
areacode = tmpareacode;
}
} else {
if (AmIOnLeftSide(xx, lowerlimit, false) >= 0) {
areacode |= (sAxisMin | sBoundary);
} else if (AmIOnLeftSide(xx, upperlimit, false) <= 0) {
areacode |= (sAxisMax | sBoundary);
}
}
return areacode;
}
//=====================================================================
//* SetCorners(EndInnerRadius, EndOuterRadius,DPhi,EndPhi,EndZ) -------
void G4HyperbolicSurface::SetCorners(
G4double EndInnerRadius[2],
G4double EndOuterRadius[2],
G4double DPhi,
G4double endPhi[2],
G4double endZ[2]
)
{
// Set Corner points in local coodinate.
if (fAxis[0] == kPhi && fAxis[1] == kZAxis) {
G4int i;
G4double endRad[2];
G4double halfdphi = 0.5*DPhi;
for (i=0; i<2; i++) { // i=0,1 : -ve z, +ve z
endRad[i] = (fHandedness == 1 ? EndOuterRadius[i]
: EndInnerRadius[i]);
}
G4int zmin = 0 ; // at -ve z
G4int zmax = 1 ; // at +ve z
G4double x, y, z;
// corner of Axis0min and Axis1min
x = endRad[zmin]*cos(endPhi[zmin] - halfdphi);
y = endRad[zmin]*sin(endPhi[zmin] - halfdphi);
z = endZ[zmin];
SetCorner(sCMin1Min, x, y, z);
// corner of Axis0max and Axis1min
x = endRad[zmin]*cos(endPhi[zmin] + halfdphi);
y = endRad[zmin]*sin(endPhi[zmin] + halfdphi);
z = endZ[zmin];
SetCorner(sCMax1Min, x, y, z);
// corner of Axis0max and Axis1max
x = endRad[zmax]*cos(endPhi[zmax] + halfdphi);
y = endRad[zmax]*sin(endPhi[zmax] + halfdphi);
z = endZ[zmax];
SetCorner(sCMax1Max, x, y, z);
// corner of Axis0min and Axis1max
x = endRad[zmax]*cos(endPhi[zmax] - halfdphi);
y = endRad[zmax]*sin(endPhi[zmax] - halfdphi);
z = endZ[zmax];
SetCorner(sCMin1Max, x, y, z);
} else {
G4cerr << "ERROR - G4FlatSurface::SetCorners()" << G4endl
<< " fAxis[0] = " << fAxis[0] << G4endl
<< " fAxis[1] = " << fAxis[1] << G4endl;
G4Exception("G4HyperbolicSurface::SetCorners()",
"NotImplemented", FatalException,
"Feature NOT implemented !");
}
}
//=====================================================================
//* SetCorners() ------------------------------------------------------
void G4HyperbolicSurface::SetCorners()
{
G4Exception("G4HyperbolicSurface::SetCorners()",
"NotImplemented", FatalException,
"Method NOT implemented !");
}
//=====================================================================
//* SetBoundaries() ---------------------------------------------------
void G4HyperbolicSurface::SetBoundaries()
{
// Set direction-unit vector of phi-boundary-lines in local coodinate.
// sAxis0 must be kPhi.
// This fanction set lower phi-boundary and upper phi-boundary.
if (fAxis[0] == kPhi && fAxis[1] == kZAxis) {
G4ThreeVector direction;
// sAxis0 & sAxisMin
direction = GetCorner(sCMin1Max) - GetCorner(sCMin1Min);
direction = direction.unit();
SetBoundary(sAxis0 & (sAxisPhi | sAxisMin), direction,
GetCorner(sCMin1Min), sAxisZ);
// sAxis0 & sAxisMax
direction = GetCorner(sCMax1Max) - GetCorner(sCMax1Min);
direction = direction.unit();
SetBoundary(sAxis0 & (sAxisPhi | sAxisMax), direction,
GetCorner(sCMax1Min), sAxisZ);
// sAxis1 & sAxisMin
direction = GetCorner(sCMax1Min) - GetCorner(sCMin1Min);
direction = direction.unit();
SetBoundary(sAxis1 & (sAxisZ | sAxisMin), direction,
GetCorner(sCMin1Min), sAxisPhi);
// sAxis1 & sAxisMax
direction = GetCorner(sCMax1Max) - GetCorner(sCMin1Max);
direction = direction.unit();
SetBoundary(sAxis1 & (sAxisZ | sAxisMax), direction,
GetCorner(sCMin1Max), sAxisPhi);
} else {
G4cerr << "ERROR - G4HyperbolicSurface::SetBoundaries()" << G4endl
<< " fAxis[0] = " << fAxis[0] << G4endl
<< " fAxis[1] = " << fAxis[1] << G4endl;
G4Exception("G4HyperbolicSurface::SetBoundaries()",
"NotImplemented", FatalException,
"Feature NOT implemented !");
}
}
@@ -0,0 +1,949 @@
//
// ********************************************************************
// * DISCLAIMER *
// * *
// * The following disclaimer summarizes all the specific disclaimers *
// * of contributors to this software. The specific disclaimers,which *
// * govern, are listed with their locations in: *
// * http://cern.ch/geant4/license *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. *
// * *
// * 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: G4TwistedSurface.cc,v 1.6 2004/06/07 08:46:38 gcosmo Exp $
// GEANT4 tag $Name: geant4-06-02 $
//
//
// --------------------------------------------------------------------
// GEANT 4 class source file
//
//
// G4TwistedSurface.cc
//
// Author:
// 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp)
//
// History:
// 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4
// from original version in Jupiter-2.5.02 application.
// --------------------------------------------------------------------
#include "G4TwistedSurface.hh"
//=====================================================================
//* constructors ------------------------------------------------------
G4TwistedSurface::G4TwistedSurface(const G4String &name,
const G4RotationMatrix &rot,
const G4ThreeVector &tlate,
G4int handedness,
const G4double kappa,
const EAxis axis0,
const EAxis axis1,
G4double axis0min,
G4double axis1min,
G4double axis0max,
G4double axis1max)
: G4VSurface(name, rot, tlate, handedness, axis0, axis1,
axis0min, axis1min, axis0max, axis1max),
fKappa(kappa)
{
if (axis0 == kZAxis && axis1 == kXAxis) {
G4Exception("G4TwistedSurface::G4TwistedSurface()", "InvalidSetup",
FatalException, "Should swap axis0 and axis1!");
}
fIsValidNorm = false;
SetCorners();
SetBoundaries();
}
G4TwistedSurface::G4TwistedSurface(const G4String &name,
G4double EndInnerRadius[2],
G4double EndOuterRadius[2],
G4double DPhi,
G4double EndPhi[2],
G4double EndZ[2],
G4double InnerRadius,
G4double OuterRadius,
G4double Kappa,
G4int handedness)
: G4VSurface(name)
{
fHandedness = handedness; // +z = +ve, -z = -ve
fAxis[0] = kXAxis; // in local coordinate system
fAxis[1] = kZAxis;
fAxisMin[0] = InnerRadius; // Inner-hype radius at z=0
fAxisMax[0] = OuterRadius; // Outer-hype radius at z=0
fAxisMin[1] = EndZ[0];
fAxisMax[1] = EndZ[1];
fKappa = Kappa;
fRot.rotateZ( fHandedness > 0
? -0.5*DPhi
: 0.5*DPhi );
fTrans.set(0, 0, 0);
fIsValidNorm = false;
SetCorners( EndInnerRadius, EndOuterRadius, EndPhi, EndZ) ;
SetBoundaries();
}
//=====================================================================
//* destructor --------------------------------------------------------
G4TwistedSurface::~G4TwistedSurface()
{
}
//=====================================================================
//* GetNormal ---------------------------------------------------------
G4ThreeVector G4TwistedSurface::GetNormal(const G4ThreeVector &tmpxx,
G4bool isGlobal)
{
// GetNormal returns a normal vector at a surface (or very close
// to surface) point at tmpxx.
// If isGlobal=true, it returns the normal in global coordinate.
//
G4ThreeVector xx;
if (isGlobal) {
xx = ComputeLocalPoint(tmpxx);
if ((xx - fCurrentNormal.p).mag() < 0.5 * kCarTolerance) {
return ComputeGlobalDirection(fCurrentNormal.normal);
}
} else {
xx = tmpxx;
if (xx == fCurrentNormal.p) {
return fCurrentNormal.normal;
}
}
G4ThreeVector er(1, fKappa * xx.z(), 0);
G4ThreeVector ez(0, fKappa * xx.x(), 1);
G4ThreeVector normal = fHandedness*(er.cross(ez));
if (isGlobal) {
fCurrentNormal.normal = ComputeGlobalDirection(normal.unit());
} else {
fCurrentNormal.normal = normal.unit();
}
return fCurrentNormal.normal;
}
//=====================================================================
//* DistanceToSurface -------------------------------------------------
G4int G4TwistedSurface::DistanceToSurface(const G4ThreeVector &gp,
const G4ThreeVector &gv,
G4ThreeVector gxx[],
G4double distance[],
G4int areacode[],
G4bool isvalid[],
EValidate validate)
{
// Coordinate system:
//
// The coordinate system is so chosen that the intersection of
// the twisted surface with the z=0 plane coincides with the
// x-axis.
// Rotation matrix from this coordinate system (local system)
// to global system is saved in fRot field.
// So the (global) particle position and (global) velocity vectors,
// p and v, should be rotated fRot.inverse() in order to convert
// to local vectors.
//
// Equation of a twisted surface:
//
// x(rho(z=0), z) = rho(z=0)
// y(rho(z=0), z) = rho(z=0)*K*z
// z(rho(z=0), z) = z
// with
// K = tan(fPhiTwist/2)/fZHalfLen
//
// Equation of a line:
//
// gxx = p + t*v
// with
// p = fRot.inverse()*gp
// v = fRot.inverse()*gv
//
// Solution for intersection:
//
// Required time for crossing is given by solving the
// following quadratic equation:
//
// a*t^2 + b*t + c = 0
//
// where
//
// a = K*v_x*v_z
// b = K*(v_x*p_z + v_z*p_x) - v_y
// c = K*p_x*p_z - p_y
//
// Out of the possible two solutions you must choose
// the one that gives a positive rho(z=0).
//
//
fCurStatWithV.ResetfDone(validate, &gp, &gv);
if (fCurStatWithV.IsDone()) {
G4int i;
for (i=0; i<fCurStatWithV.GetNXX(); i++) {
gxx[i] = fCurStatWithV.GetXX(i);
distance[i] = fCurStatWithV.GetDistance(i);
areacode[i] = fCurStatWithV.GetAreacode(i);
isvalid[i] = fCurStatWithV.IsValid(i);
}
return fCurStatWithV.GetNXX();
} else {
// initialize
G4int i;
for (i=0; i<2; i++) {
distance[i] = kInfinity;
areacode[i] = sOutside;
isvalid[i] = false;
gxx[i].set(kInfinity, kInfinity, kInfinity);
}
}
G4ThreeVector p = ComputeLocalPoint(gp);
G4ThreeVector v = ComputeLocalDirection(gv);
G4ThreeVector xx[2];
//
// special case!
// p is origin or
//
G4double absvz = fabs(v.z());
if ((absvz < DBL_MIN) && (fabs(p.x() * v.y() - p.y() * v.x()) < DBL_MIN)) {
// no intersection
isvalid[0] = false;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 0, validate, &gp, &gv);
return 0;
}
//
// special case end
//
G4double a = fKappa * v.x() * v.z();
G4double b = fKappa * (v.x() * p.z() + v.z() * p.x()) - v.y();
G4double c = fKappa * p.x() * p.z() - p.y();
G4double D = b * b - 4 * a * c; // discriminant
if (fabs(a) < DBL_MIN) {
if (fabs(b) > DBL_MIN) {
// single solution
distance[0] = - c / b;
xx[0] = p + distance[0]*v;
gxx[0] = ComputeGlobalPoint(xx[0]);
if (validate == kValidateWithTol) {
areacode[0] = GetAreaCode(xx[0]);
if (!IsOutside(areacode[0])) {
if (distance[0] >= 0) isvalid[0] = true;
}
} else if (validate == kValidateWithoutTol) {
areacode[0] = GetAreaCode(xx[0], false);
if (IsInside(areacode[0])) {
if (distance[0] >= 0) isvalid[0] = true;
}
} else { // kDontValidate
// we must omit x(rho,z) = rho(z=0) < 0
if (xx[0].x() > 0) {
areacode[0] = sInside;
if (distance[0] >= 0) isvalid[0] = true;
} else {
distance[0] = kInfinity;
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0],
areacode[0], isvalid[0],
0, validate, &gp, &gv);
return 0;
}
}
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 1, validate, &gp, &gv);
return 1;
} else {
// if a=b=0 , v.y=0 and (v.x=0 && p.x=0) or (v.z=0 && p.z=0) .
// if v.x=0 && p.x=0, no intersection unless p is on z-axis
// (in that case, v is paralell to surface).
// if v.z=0 && p.z=0, no intersection unless p is on x-axis
// (in that case, v is paralell to surface).
// return distance = infinity.
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 0, validate, &gp, &gv);
return 0;
}
} else if (D > DBL_MIN) {
// double solutions
D = sqrt(D);
G4double factor = 0.5/a;
G4double tmpdist[2] = {kInfinity, kInfinity};
G4ThreeVector tmpxx[2];
G4int tmpareacode[2] = {sOutside, sOutside};
G4bool tmpisvalid[2] = {false, false};
G4int i;
for (i=0; i<2; i++) {
G4double bminusD = - b - D;
// protection against round off error
//G4double protection = 1.0e-6;
G4double protection = 0;
if ( b * D < 0 && fabs(bminusD / D) < protection ) {
G4double acovbb = (a*c)/(b*b);
tmpdist[i] = - c/b * ( 1 - acovbb * (1 + 2*acovbb));
} else {
tmpdist[i] = factor * bminusD;
}
D = -D;
tmpxx[i] = p + tmpdist[i]*v;
if (validate == kValidateWithTol) {
tmpareacode[i] = GetAreaCode(tmpxx[i]);
if (!IsOutside(tmpareacode[i])) {
if (tmpdist[i] >= 0) tmpisvalid[i] = true;
continue;
}
} else if (validate == kValidateWithoutTol) {
tmpareacode[i] = GetAreaCode(tmpxx[i], false);
if (IsInside(tmpareacode[i])) {
if (tmpdist[i] >= 0) tmpisvalid[i] = true;
continue;
}
} else { // kDontValidate
// we must choose x(rho,z) = rho(z=0) > 0
if (tmpxx[i].x() > 0) {
tmpareacode[i] = sInside;
if (tmpdist[i] >= 0) tmpisvalid[i] = true;
continue;
} else {
tmpdist[i] = kInfinity;
continue;
}
}
}
if (tmpdist[0] <= tmpdist[1]) {
distance[0] = tmpdist[0];
distance[1] = tmpdist[1];
xx[0] = tmpxx[0];
xx[1] = tmpxx[1];
gxx[0] = ComputeGlobalPoint(tmpxx[0]);
gxx[1] = ComputeGlobalPoint(tmpxx[1]);
areacode[0] = tmpareacode[0];
areacode[1] = tmpareacode[1];
isvalid[0] = tmpisvalid[0];
isvalid[1] = tmpisvalid[1];
} else {
distance[0] = tmpdist[1];
distance[1] = tmpdist[0];
xx[0] = tmpxx[1];
xx[1] = tmpxx[0];
gxx[0] = ComputeGlobalPoint(tmpxx[1]);
gxx[1] = ComputeGlobalPoint(tmpxx[0]);
areacode[0] = tmpareacode[1];
areacode[1] = tmpareacode[0];
isvalid[0] = tmpisvalid[1];
isvalid[1] = tmpisvalid[0];
}
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 2, validate, &gp, &gv);
fCurStatWithV.SetCurrentStatus(1, gxx[1], distance[1], areacode[1],
isvalid[1], 2, validate, &gp, &gv);
// protection against roundoff error
for (G4int k=0; k<2; k++) {
if (!isvalid[k]) continue;
G4ThreeVector xxonsurface(xx[k].x(), fKappa * fabs(xx[k].x())
* xx[k].z() , xx[k].z());
G4double deltaY = (xx[k] - xxonsurface).mag();
if ( deltaY > 0.5*kCarTolerance ) {
G4int maxcount = 10;
G4int l;
G4double lastdeltaY = deltaY;
G4ThreeVector last = deltaY;
for (l=0; l<maxcount; l++) {
G4ThreeVector surfacenormal = GetNormal(xxonsurface);
distance[k] = DistanceToPlaneWithV(p, v, xxonsurface,
surfacenormal, xx[k]);
deltaY = (xx[k] - xxonsurface).mag();
if (deltaY > lastdeltaY) {
}
gxx[k] = ComputeGlobalPoint(xx[k]);
if (deltaY <= 0.5*kCarTolerance) {
break;
}
xxonsurface.set(xx[k].x(),
fKappa * fabs(xx[k].x()) * xx[k].z(),
xx[k].z());
}
if (l == maxcount) {
G4cerr << "ERROR - G4TwistedSurface::DistanceToSurface(p,v)"
<< G4endl
<< " maxloop count " << maxcount << G4endl;
G4Exception("G4FlatSurface::DistanceToSurface(p,v)",
"InvalidSetup", FatalException,
"Exceeded maxloop count!");
}
}
}
return 2;
} else {
// if D<0, no solution
// if D=0, just grazing the surfaces, return kInfinity
fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid[0], 0, validate, &gp, &gv);
return 0;
}
G4Exception("G4TwistedSurface::DistanceToSurface(p,v)",
"InvalidCondition", FatalException, "Illegal operation !");
return 1;
}
//=====================================================================
//* DistanceToSurface -------------------------------------------------
G4int G4TwistedSurface::DistanceToSurface(const G4ThreeVector &gp,
G4ThreeVector gxx[],
G4double distance[],
G4int areacode[])
{
fCurStat.ResetfDone(kDontValidate, &gp);
G4int i = 0;
if (fCurStat.IsDone()) {
for (i=0; i<fCurStat.GetNXX(); i++) {
gxx[i] = fCurStat.GetXX(i);
distance[i] = fCurStat.GetDistance(i);
areacode[i] = fCurStat.GetAreacode(i);
}
return fCurStat.GetNXX();
} else {
// initialize
for (i=0; i<2; i++) {
distance[i] = kInfinity;
areacode[i] = sOutside;
gxx[i].set(kInfinity, kInfinity, kInfinity);
}
}
static const G4double halftol = 0.5 * kCarTolerance;
G4ThreeVector p = ComputeLocalPoint(gp);
G4ThreeVector xx;
G4int parity = (fKappa >= 0 ? 1 : -1);
//
// special case!
// If p is on surface, or
// p is on z-axis,
// return here immediatery.
//
G4ThreeVector lastgxx[2];
G4double distfromlast[2];
for (i=0; i<2; i++) {
lastgxx[i] = fCurStatWithV.GetXX(i);
distfromlast[i] = (gp - lastgxx[i]).mag();
}
if ((gp - lastgxx[0]).mag() < halftol
|| (gp - lastgxx[1]).mag() < halftol) {
// last winner, or last poststep point is on the surface.
xx = p;
distance[0] = 0;
gxx[0] = gp;
G4bool isvalid = true;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid, 1, kDontValidate, &gp);
return 1;
}
if (p.getRho() == 0) {
// p is on z-axis. Namely, p is on twisted surface (invalid area).
// We must return here, however, returning distance to x-minimum
// boundary is better than return 0-distance.
//
G4bool isvalid = true;
if (fAxis[0] == kXAxis && fAxis[1] == kZAxis) {
distance[0] = DistanceToBoundary(sAxis0 & sAxisMin, xx, p);
areacode[0] = sInside;
} else {
distance[0] = 0;
xx.set(0., 0., 0.);
}
gxx[0] = ComputeGlobalPoint(xx);
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid, 0, kDontValidate, &gp);
return 1;
}
//
// special case end
//
// set corner points of quadrangle try area ...
G4ThreeVector A; // foot of normal from p to boundary of sAxis0 & sAxisMin
G4ThreeVector C; // foot of normal from p to boundary of sAxis0 & sAxisMax
G4ThreeVector B; // point on boundary sAxis0 & sAxisMax at z = A.z()
G4ThreeVector D; // point on boundary sAxis0 & sAxisMin at z = C.z()
G4double distToA; // distance from p to A
G4double distToC; // distance from p to C
distToA = DistanceToBoundary(sAxis0 & sAxisMin, A, p);
distToC = DistanceToBoundary(sAxis0 & sAxisMax, C, p);
// is p.z between a.z and c.z?
// p.z must be bracketed a.z and c.z.
if (A.z() > C.z()) {
if (p.z() > A.z()) {
A = GetBoundaryAtPZ(sAxis0 & sAxisMin, p);
} else if (p.z() < C.z()) {
C = GetBoundaryAtPZ(sAxis0 & sAxisMax, p);
}
} else {
if (p.z() > C.z()) {
C = GetBoundaryAtPZ(sAxis0 & sAxisMax, p);
} else if (p.z() < A.z()) {
A = GetBoundaryAtPZ(sAxis0 & sAxisMin, p);
}
}
G4ThreeVector d[2]; // direction vectors of boundary
G4ThreeVector x0[2]; // foot of normal from line to p
G4int btype[2]; // boundary type
for (i=0; i<2; i++) {
if (i == 0) {
GetBoundaryParameters((sAxis0 & sAxisMax), d[i], x0[i], btype[i]);
B = x0[i] + ((A.z() - x0[i].z()) / d[i].z()) * d[i];
// x0 + t*d , d is direction unit vector.
} else {
GetBoundaryParameters((sAxis0 & sAxisMin), d[i], x0[i], btype[i]);
D = x0[i] + ((C.z() - x0[i].z()) / d[i].z()) * d[i];
}
}
// In order to set correct diagonal, swap A and D, C and B if needed.
G4ThreeVector pt(p.x(), p.y(), 0.);
G4double rc = fabs(p.x());
G4ThreeVector surfacevector(rc, rc * fKappa * p.z(), 0.);
G4int pside = AmIOnLeftSide(pt, surfacevector);
G4double test = (A.z() - C.z()) * parity * pside;
if (test == 0) {
if (pside == 0) {
// p is on surface.
xx = p;
distance[0] = 0;
gxx[0] = gp;
G4bool isvalid = true;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid, 1, kDontValidate, &gp);
return 1;
} else {
// A.z = C.z(). return distance to line.
d[0] = C - A;
distance[0] = DistanceToLine(p, A, d[0], xx);
areacode[0] = sInside;
gxx[0] = ComputeGlobalPoint(xx);
G4bool isvalid = true;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid, 1, kDontValidate, &gp);
return 1;
}
} else if (test < 0) {
// wrong diagonal. vector AC is crossing the surface!
// swap A and D, C and B
G4ThreeVector tmp;
tmp = A;
A = D;
D = tmp;
tmp = C;
C = B;
B = tmp;
} else {
// correct diagonal. nothing to do.
}
// Now, we chose correct diaglnal.
// First try. divide quadrangle into double triangle by diagonal and
// calculate distance to both surfaces.
G4ThreeVector xxacb; // foot of normal from plane ACB to p
G4ThreeVector nacb; // normal of plane ACD
G4ThreeVector xxcad; // foot of normal from plane CAD to p
G4ThreeVector ncad; // normal of plane CAD
G4ThreeVector AB(A.x(), A.y(), 0);
G4ThreeVector DC(C.x(), C.y(), 0);
G4double distToACB = G4VSurface::DistanceToPlane(p, A, C-A, AB, xxacb, nacb) * parity;
G4double distToCAD = G4VSurface::DistanceToPlane(p, C, C-A, DC, xxcad, ncad) * parity;
// if calculated distance = 0, return
if (fabs(distToACB) <= halftol || fabs(distToCAD) <= halftol) {
xx = (fabs(distToACB) < fabs(distToCAD) ? xxacb : xxcad);
areacode[0] = sInside;
gxx[0] = ComputeGlobalPoint(xx);
distance[0] = 0;
G4bool isvalid = true;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0] , areacode[0],
isvalid, 1, kDontValidate, &gp);
return 1;
}
if (distToACB * distToCAD > 0 && distToACB < 0) {
// both distToACB and distToCAD are negative.
// divide quadrangle into double triangle by diagonal
G4ThreeVector normal;
distance[0] = DistanceToPlane(p, A, B, C, D, parity, xx, normal);
} else {
if (distToACB * distToCAD > 0) {
// both distToACB and distToCAD are positive.
// Take smaller one.
if (distToACB <= distToCAD) {
distance[0] = distToACB;
xx = xxacb;
} else {
distance[0] = distToCAD;
xx = xxcad;
}
} else {
// distToACB * distToCAD is negative.
// take positive one
if (distToACB > 0) {
distance[0] = distToACB;
xx = xxacb;
} else {
distance[0] = distToCAD;
xx = xxcad;
}
}
}
areacode[0] = sInside;
gxx[0] = ComputeGlobalPoint(xx);
G4bool isvalid = true;
fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
isvalid, 1, kDontValidate, &gp);
return 1;
}
//=====================================================================
//* DistanceToPlane ---------------------------------------------------
G4double G4TwistedSurface::DistanceToPlane(const G4ThreeVector &p,
const G4ThreeVector &A,
const G4ThreeVector &B,
const G4ThreeVector &C,
const G4ThreeVector &D,
const G4int parity,
G4ThreeVector &xx,
G4ThreeVector &n)
{
static const G4double halftol = 0.5 * kCarTolerance;
G4ThreeVector M = 0.5*(A + B);
G4ThreeVector N = 0.5*(C + D);
G4ThreeVector xxanm; // foot of normal from p to plane ANM
G4ThreeVector nanm; // normal of plane ANM
G4ThreeVector xxcmn; // foot of normal from p to plane CMN
G4ThreeVector ncmn; // normal of plane CMN
G4double distToanm = G4VSurface::DistanceToPlane(p, A, (N - A), (M - A), xxanm, nanm) * parity;
G4double distTocmn = G4VSurface::DistanceToPlane(p, C, (M - C), (N - C), xxcmn, ncmn) * parity;
// if p is behind of both surfaces, abort.
if (distToanm * distTocmn > 0 && distToanm < 0) {
G4Exception("G4TwistedSurface::DistanceToPlane()",
"InvalidCondition", FatalException,
"Point p is behind the surfaces.");
}
// if p is on surface, return 0.
if (fabs(distToanm) <= halftol) {
xx = xxanm;
n = nanm * parity;
return 0;
} else if (fabs(distTocmn) <= halftol) {
xx = xxcmn;
n = ncmn * parity;
return 0;
}
if (distToanm <= distTocmn) {
if (distToanm > 0) {
// both distanses are positive. take smaller one.
xx = xxanm;
n = nanm * parity;
return distToanm;
} else {
// take -ve distance and call the function recursively.
return DistanceToPlane(p, A, M, N, D, parity, xx, n);
}
} else {
if (distTocmn > 0) {
// both distanses are positive. take smaller one.
xx = xxcmn;
n = ncmn * parity;
return distTocmn;
} else {
// take -ve distance and call the function recursively.
return DistanceToPlane(p, C, N, M, B, parity, xx, n);
}
}
}
//=====================================================================
//* GetAreaCode -------------------------------------------------------
G4int G4TwistedSurface::GetAreaCode(const G4ThreeVector &xx,
G4bool withTol)
{
// We must use the function in local coordinate system.
// See the description of DistanceToSurface(p,v).
static const G4double ctol = 0.5 * kCarTolerance;
G4int areacode = sInside;
if (fAxis[0] == kXAxis && fAxis[1] == kZAxis) {
G4int xaxis = 0;
G4int zaxis = 1;
if (withTol) {
G4bool isoutside = false;
// test boundary of xaxis
if (xx.x() < fAxisMin[xaxis] + ctol) {
areacode |= (sAxis0 & (sAxisX | sAxisMin)) | sBoundary;
if (xx.x() <= fAxisMin[xaxis] - ctol) isoutside = true;
} else if (xx.x() > fAxisMax[xaxis] - ctol) {
areacode |= (sAxis0 & (sAxisX | sAxisMax)) | sBoundary;
if (xx.x() >= fAxisMin[xaxis] + ctol) isoutside = true;
}
// test boundary of z-axis
if (xx.z() < fAxisMin[zaxis] + ctol) {
areacode |= (sAxis1 & (sAxisZ | sAxisMin));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
if (xx.z() <= fAxisMin[zaxis] - ctol) isoutside = true;
} else if (xx.z() > fAxisMax[zaxis] - ctol) {
areacode |= (sAxis1 & (sAxisZ | sAxisMax));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
if (xx.z() >= fAxisMax[zaxis] + ctol) isoutside = true;
}
// if isoutside = true, clear inside bit.
// if not on boundary, add axis information.
if (isoutside) {
G4int tmpareacode = areacode & (~sInside);
areacode = tmpareacode;
} else if ((areacode & sBoundary) != sBoundary) {
areacode |= (sAxis0 & sAxisX) | (sAxis1 & sAxisZ);
}
} else {
// boundary of x-axis
if (xx.x() < fAxisMin[xaxis] ) {
areacode |= (sAxis0 & (sAxisX | sAxisMin)) | sBoundary;
} else if (xx.x() > fAxisMax[xaxis]) {
areacode |= (sAxis0 & (sAxisX | sAxisMax)) | sBoundary;
}
// boundary of z-axis
if (xx.z() < fAxisMin[zaxis]) {
areacode |= (sAxis1 & (sAxisZ | sAxisMin));
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
} else if (xx.z() > fAxisMax[zaxis]) {
areacode |= (sAxis1 & (sAxisZ | sAxisMax)) ;
if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
else areacode |= sBoundary;
}
if ((areacode & sBoundary) != sBoundary) {
areacode |= (sAxis0 & sAxisX) | (sAxis1 & sAxisZ);
}
}
return areacode;
} else {
G4Exception("G4TwistedSurface::GetAreaCode()",
"NotImplemented", FatalException,
"Feature NOT implemented !");
}
return areacode;
}
//=====================================================================
//* SetCorners( arglist ) -------------------------------------------------
void G4TwistedSurface::SetCorners(
G4double endInnerRad[2],
G4double endOuterRad[2],
G4double endPhi[2],
G4double endZ[2])
{
// Set Corner points in local coodinate.
if (fAxis[0] == kXAxis && fAxis[1] == kZAxis) {
G4int zmin = 0 ; // at -ve z
G4int zmax = 1 ; // at +ve z
G4double x, y, z;
// corner of Axis0min and Axis1min
x = endInnerRad[zmin]*cos(endPhi[zmin]);
y = endInnerRad[zmin]*sin(endPhi[zmin]);
z = endZ[zmin];
SetCorner(sCMin1Min, x, y, z);
// corner of Axis0max and Axis1min
x = endOuterRad[zmin]*cos(endPhi[zmin]);
y = endOuterRad[zmin]*sin(endPhi[zmin]);
z = endZ[zmin];
SetCorner(sCMax1Min, x, y, z);
// corner of Axis0max and Axis1max
x = endOuterRad[zmax]*cos(endPhi[zmax]);
y = endOuterRad[zmax]*sin(endPhi[zmax]);
z = endZ[zmax];
SetCorner(sCMax1Max, x, y, z);
// corner of Axis0min and Axis1max
x = endInnerRad[zmax]*cos(endPhi[zmax]);
y = endInnerRad[zmax]*sin(endPhi[zmax]);
z = endZ[zmax];
SetCorner(sCMin1Max, x, y, z);
} else {
G4cerr << "ERROR - G4FlatSurface::SetCorners()" << G4endl
<< " fAxis[0] = " << fAxis[0] << G4endl
<< " fAxis[1] = " << fAxis[1] << G4endl;
G4Exception("G4TwistedSurface::SetCorners()",
"NotImplemented", FatalException,
"Feature NOT implemented !");
}
}
//=====================================================================
//* SetCorners() ------------------------------------------------------
void G4TwistedSurface::SetCorners()
{
G4Exception("G4TwistedSurface::SetCorners()",
"NotImplemented", FatalException,
"Method NOT implemented !");
}
//=====================================================================
//* SetBoundaries() ---------------------------------------------------
void G4TwistedSurface::SetBoundaries()
{
// Set direction-unit vector of boundary-lines in local coodinate.
//
G4ThreeVector direction;
if (fAxis[0] == kXAxis && fAxis[1] == kZAxis) {
// sAxis0 & sAxisMin
direction = GetCorner(sCMin1Max) - GetCorner(sCMin1Min);
direction = direction.unit();
SetBoundary(sAxis0 & (sAxisX | sAxisMin), direction,
GetCorner(sCMin1Min), sAxisZ) ;
// sAxis0 & sAxisMax
direction = GetCorner(sCMax1Max) - GetCorner(sCMax1Min);
direction = direction.unit();
SetBoundary(sAxis0 & (sAxisX | sAxisMax), direction,
GetCorner(sCMax1Min), sAxisZ);
// sAxis1 & sAxisMin
direction = GetCorner(sCMax1Min) - GetCorner(sCMin1Min);
direction = direction.unit();
SetBoundary(sAxis1 & (sAxisZ | sAxisMin), direction,
GetCorner(sCMin1Min), sAxisX);
// sAxis1 & sAxisMax
direction = GetCorner(sCMax1Max) - GetCorner(sCMin1Max);
direction = direction.unit();
SetBoundary(sAxis1 & (sAxisZ | sAxisMax), direction,
GetCorner(sCMin1Max), sAxisX);
} else {
G4cerr << "ERROR - G4FlatSurface::SetBoundaries()" << G4endl
<< " fAxis[0] = " << fAxis[0] << G4endl
<< " fAxis[1] = " << fAxis[1] << G4endl;
G4Exception("G4TwistedSurface::SetCorners()",
"NotImplemented", FatalException,
"Feature NOT implemented !");
}
}
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File diff suppressed because it is too large Load Diff