BelleLathe Class Reference

BelleLathe class. More...

#include <BelleLathe.h>

Inheritance diagram for BelleLathe:

Public Member Functions
	BelleLathe (const G4String &pName)
	Constructor for "nominal" BelleLathe whose parameters are to be set by a G4VPVParamaterisation later.
	BelleLathe (const G4String &pName, double phi0, double dphi, int n, double *z, double *rin, double *rout)
	explicit constructor
	BelleLathe (const G4String &pName, double, double, const std::vector< zr_t > &)
	explicit constructor
virtual	~BelleLathe ()
	Destructor.
void	ComputeDimensions (G4VPVParameterisation *p, const G4int n, const G4VPhysicalVolume *pRep)
	compute the dimensions
G4bool	CalculateExtent (const EAxis pAxis, const G4VoxelLimits &pVoxelLimit, const G4AffineTransform &pTransform, G4double &pMin, G4double &pMax) const
	calculate the extent of the volume
EInside	Inside (const G4ThreeVector &p) const
	Return whether point inside/outside/on surface, using tolerance.
G4ThreeVector	SurfaceNormal (const G4ThreeVector &p) const
	Calculate side nearest to p, and return normal.
G4double	DistanceToIn (const G4ThreeVector &p, const G4ThreeVector &v) const
	Calculate distance to shape from outside - return kInfinity if no intersection.
G4double	DistanceToIn (const G4ThreeVector &p) const
	Calculate exact shortest distance to any boundary from outside.
G4double	DistanceToOut (const G4ThreeVector &p, const G4ThreeVector &v, const G4bool calcNorm=false, G4bool *validNorm=0, G4ThreeVector *n=0) const
	Calculate distance to surface of shape from inside.
G4double	DistanceToOut (const G4ThreeVector &p) const
	Calculate exact shortest distance to any boundary from inside.
G4GeometryType	GetEntityType () const
	Get entity type.
G4ThreeVector	GetPointOnSurface () const
	Get point on surface.
G4double	GetCubicVolume ()
	Get cubic volume.
G4double	GetSurfaceArea ()
	Get surface area.
G4VSolid *	Clone () const
	Make a clone of the object.
void	BoundingLimits (G4ThreeVector &pMin, G4ThreeVector &pMax) const
	Two vectors define an axis-parallel bounding box for the shape.
std::ostream &	StreamInfo (std::ostream &os) const
	Stream object contents to an output stream.
void	DescribeYourselfTo (G4VGraphicsScene &scene) const
	Visualisation function.
G4Polyhedron *	CreatePolyhedron () const
	create polyhedron
	BelleLathe (__void__ &)
	Fake default constructor for usage restricted to direct object persistency for clients requiring preallocation of memory for persistifiable objects.
	BelleLathe (const BelleLathe &rhs)
	copy constructor
BelleLathe &	operator= (const BelleLathe &rhs)
	assignment operator

Protected Member Functions
bool	insector (double, double) const
	True if (x,y) is within the shape rotation.
int	wn_poly (const zr_t &) const
	wn_poly
double	mindist (const zr_t &) const
	minimal distance
std::vector< double >	linecross (const G4ThreeVector &, const G4ThreeVector &) const
	calculate all ray solid's surface intersection return ordered vector
void	eartrim () const
	ear trim
zr_t	normal (const zr_t &, double &) const
	return normal
void	getvolarea ()
	get volume area
void	Init (const std::vector< zr_t > &, double, double)
	initialize

Private Attributes
std::vector< zr_t >	fcontour
	vector of zr structs
std::vector< cachezr_t >	fcache
	vector of cached zr structs
std::vector< double >	fz
	vector of z values
std::vector< int >	findx
	vector of indices
std::vector< int >	fseg
	vector of segments
std::vector< double >	farea
	vector of area values
std::vector< triangle_t >	ftlist
	vector of triangle structs
double	fphi
	starting angle
double	fdphi
	finishing angle
double	fs0
	fs0
double	fc0
	fc0
double	fs1
	fs1
double	fc1
	fc1
double	fn0x
	fn0x
double	fn0y
	fn0y
double	fn1x
	fn1x
double	fn1y
	fn1y
double	frmin
	minimal r value
double	frmax
	maximal r value
double	fzmin
	minimal z value
double	fzmax
	maximal z value
bool	fgtpi
	greater than pi?
bool	ftwopi
	bound within +- 2pi?
G4VSolid *	fshape
	shape
std::vector< G4ThreeVector >	fsurf
	vector of surfaces

Detailed Description

BelleLathe class.

Definition at line 67 of file BelleLathe.h.

Constructor & Destructor Documentation

BelleLathe() [1/5]

BelleLathe ( const G4String &  pName )

explicit

Constructor for "nominal" BelleLathe whose parameters are to be set by a G4VPVParamaterisation later.

Definition at line 268 of file BelleLathe.cc.

  : G4CSGSolid(pName)
{
  vector<zr_t> a;
  Init(a, 0, 2 * M_PI);
}

BelleLathe() [2/5]

BelleLathe	(	const G4String &	pName,
		double	phi0,
		double	dphi,
		int	n,
		double *	z,
		double *	rin,
		double *	rout
	)

explicit constructor

Definition at line 85 of file BelleLathe.cc.

  : G4CSGSolid(pName)
{
  vector<zr_t> contour;
  for (int i = 0; i < n; i++) {
    zr_t t = {z[i], rin[i]};
    contour.push_back(t);
  }
  for (int i = n - 1; i >= 0; i--) {
    zr_t t = {z[i], rout[i]};
    contour.push_back(t);
  }
 
  Init(contour, phi0, dphi);
}

BelleLathe() [3/5]

BelleLathe	(	const G4String &	pName,
		double	phi0,
		double	dphi,
		const std::vector< zr_t > &	c
	)

explicit constructor

Definition at line 79 of file BelleLathe.cc.

  : G4CSGSolid(pName)
{
  Init(c, phi0, dphi);
}

~BelleLathe()

~BelleLathe ( )

virtual

Destructor.

Definition at line 285 of file BelleLathe.cc.

{
#if PERFCOUNTER==1
  cout << GetName() << " ";
  for (int i = 0; i < 6; i++) cout << counterl[GetName()][i] << " "; cout << endl;
#endif
}

BelleLathe() [4/5]

BelleLathe ( __void__ &  a )

explicit

Fake default constructor for usage restricted to direct object persistency for clients requiring preallocation of memory for persistifiable objects.

Definition at line 277 of file BelleLathe.cc.

  : G4CSGSolid(a)
{
  vector<zr_t> b;
  Init(b, 0, 2 * M_PI);
}

BelleLathe() [5/5]

BelleLathe

(

const BelleLathe &

rhs

)

copy constructor

Definition at line 294 of file BelleLathe.cc.

  : G4CSGSolid(rhs), fcontour(rhs.fcontour), fcache(rhs.fcache), fz(rhs.fz),
    findx(rhs.findx), fseg(rhs.fseg), farea(rhs.farea), ftlist(rhs.ftlist),
    fphi(rhs.fphi), fdphi(rhs.fdphi), fs0(rhs.fs0), fc0(rhs.fc0), fs1(rhs.fs1),
    fc1(rhs.fc1), fn0x(rhs.fn0x), fn0y(rhs.fn0y), fn1x(rhs.fn1x), fn1y(rhs.fn1y),
    frmin(rhs.frmin), frmax(rhs.frmax), fzmin(rhs.fzmin), fzmax(rhs.fzmax),
    fgtpi(rhs.fgtpi), ftwopi(rhs.ftwopi), fshape(rhs.fshape), fsurf(rhs.fsurf)
{
}

Member Function Documentation

BoundingLimits()

void BoundingLimits	(	G4ThreeVector &	pMin,
		G4ThreeVector &	pMax
	)		const

Two vectors define an axis-parallel bounding box for the shape.

Definition at line 1855 of file BelleLathe.cc.

{
  std::vector<vector_t> points;
  vector_t point;
 
  // Placeholder vectors
  const double inf = std::numeric_limits<double>::infinity();
  G4ThreeVector minimum(inf, inf, inf), maximum(-inf, -inf, -inf);
 
  // Outer vertices
  if (fdphi < 2 * M_PI) { // Only axis-crossings are relevant if the shape is a full circle
    point.x = frmax * cos(fphi); point.y = frmax * sin(fphi);
    points.push_back(point);
    point.x = frmax * cos(fphi + fdphi); point.y = frmax * sin(fphi + fdphi);
    points.push_back(point);
  }
 
  // Inner vertices
  point.x = frmin * cos(fphi); point.y = frmin * sin(fphi);
  points.push_back(point);
  if (frmin != 0) { // Avoid duplicate (0,0)
    point.x = frmin * cos(fphi + fdphi); point.y = frmin * sin(fphi + fdphi);
    points.push_back(point);
  }
 
  // Check if shape crosses an axis
  // Because the inside is concave, extremums will always be at vertices
  // Because the outside is convex, extremums may be at an axis-crossing
  if (insector(0, 1)) {
    point.x = 0; point.y = frmax;
    points.push_back(point);
  }
  if (insector(-1, 0)) {
    point.x = -frmax; point.y = 0;
    points.push_back(point);
  }
  if (insector(0, -1)) {
    point.x = 0; point.y = -frmax;
    points.push_back(point);
  }
  if (insector(1, 0)) {
    point.x = frmax; point.y = 0;
    points.push_back(point);
  }
 
  for (std::vector<vector_t>::size_type i = 0; i != points.size(); i++) {
    // global min in x
    if (points[i].x < minimum.x())
      minimum.setX(points[i].x);
 
    // global min in y
    if (points[i].y < minimum.y())
      minimum.setY(points[i].y);
 
    // global max in x
    if (points[i].x > maximum.x())
      maximum.setX(points[i].x);
 
    // global max in y
    if (points[i].y > maximum.y())
      maximum.setY(points[i].y);
  }
 
  // Set z extremum values
  minimum.setZ(fzmin);
  maximum.setZ(fzmax);
 
  // Assign
  pMin = minimum;
  pMax = maximum;
}

CalculateExtent()

G4bool CalculateExtent	(	const EAxis	pAxis,
		const G4VoxelLimits &	pVoxelLimit,
		const G4AffineTransform &	pTransform,
		G4double &	pMin,
		G4double &	pMax
	)		const

calculate the extent of the volume

Definition at line 514 of file BelleLathe.cc.

{
  auto maxdist = [this](const G4ThreeVector & n) -> G4ThreeVector {
    G4ThreeVector r;
    int i = 0, nsize = fcache.size();
    if (ftwopi || insector(n.x(), n.y())) // n in sector
    {
      double nr = hypot(n.x(), n.y()), nz = n.z();
      double dmax = -kInfinity, R = 0, Z = 0;
      do {
        const cachezr_t& s = fcache[i];
        double d1 = nz * s.z + nr * s.r;
        if (dmax < d1) { R = s.r; Z = s.z; dmax = d1;}
      } while (++i < nsize);
      if (nr > 0) {
        R /= nr;
        r.set(R * n.x(), R * n.y(), Z);
      } else {
        double phi = fphi + 0.5 * fdphi;
        r.set(R * cos(phi), R * sin(phi), Z);
      }
    } else
    {
      double dmax = -kInfinity;
      do {
        const cachezr_t& s = fcache[i];
        // check both sides
        G4ThreeVector rf(-fn0y * s.r, fn0x * s.r, s.z), rl(fn1y * s.r, -fn1x * s.r, s.z);
        double d0 = rf * n, d1 = rl * n;
        //  cout<<rf<<" "<<rl<<endl;
        if (dmax < d0) { r = rf; dmax = d0;}
        if (dmax < d1) { r = rl; dmax = d1;}
      } while (++i < nsize);
    }
    return r;
  };
 
  struct seg_t {int i0, i1;};
  auto clip = [](vector<G4ThreeVector>& vlist, vector<seg_t>& slist, const G4ThreeVector & n, double dist) {
    vector<seg_t> snew;
    vector<int> lone;
 
    vector<double> d;
    for (const G4ThreeVector& v : vlist) d.push_back(v * n + dist);
 
    for (seg_t s : slist) {
      double prod = d[s.i0] * d[s.i1];
      //      cout<<d[s.i0]<<" "<<d[s.i1]<<endl;
      if (prod < 0) { // segment crosses plane - break it
        G4ThreeVector rn = (vlist[s.i0] * d[s.i1] - vlist[s.i1] * d[s.i0]) * (1 / (d[s.i1] - d[s.i0]));
        lone.push_back(vlist.size()); vlist.push_back(rn);
        if (d[s.i0] < 0) {
          s = {lone.back(), s.i1};
        } else {
          s = {s.i0, lone.back()};
        }
      } else if (prod == 0) { // segment end on plane
        if (d[s.i0] == 0 && d[s.i1] > 0) {
          lone.push_back(s.i0);
        } else if (d[s.i0] > 0 && d[s.i1] == 0) {
          lone.push_back(s.i1);
        } else continue;
      } else {
        if (d[s.i0] < 0) continue; // segment below plane
      }
      snew.push_back(s);
    }
 
    double dmax = -1e99;
    int imax = -1, jmax = -1;
    // search for the most distant points on the clipping plane
    for (unsigned int i = 0; i < lone.size(); i++) {
      for (unsigned int j = i + 1; j < lone.size(); j++) {
        double d2 = (vlist[lone[i]] - vlist[lone[j]]).mag2();
        if (d2 > dmax) { imax = lone[i]; jmax = lone[j];}
      }
    }
 
    // close the new polygon by creating new segments
    if (imax >= 0) {
      G4ThreeVector k = vlist[jmax] - vlist[imax];
      sort(lone.begin(), lone.end(), [&k, &vlist, &imax](int i, int j) {return k * (vlist[i] - vlist[imax]) < k * (vlist[j] - vlist[imax]);});
 
      for (unsigned int i = 0; i < lone.size(); i += 2) {
        seg_t t = {lone[i], lone[i + 1]};
        for (const seg_t& s : snew) {
          if (t.i1 == s.i0) { snew.push_back(t); break;}
          if (t.i0 == s.i0) { swap(t.i0, t.i1); snew.push_back(t); break;}
        }
      }
    }
    swap(slist, snew);
  };
 
  auto PhiCrossN = [this, clip](const vector<Plane_t>& planes) {
    // unordered clipped phi-sides vertices within
    // limiting planes
    vector<G4ThreeVector> vlist; // vertex list
    vector<seg_t> slist; // segment list
    vector<G4ThreeVector> res;
 
    int nsize = fcache.size();
    vlist.reserve(nsize);
    slist.reserve(nsize);
    for (int iphi = 0; iphi < 2; iphi++) {
      vlist.clear();
      slist.clear();
      // phi-side directional vector is (kx,ky)
      double kx = iphi ? -fn0y : fn1y, ky = iphi ? fn0x : -fn1x;
      do {
        int i = 0;
        do {
          const cachezr_t& s = fcache[i];
          G4ThreeVector r(kx * s.r, ky * s.r, s.z);
          vlist.push_back(r);
          seg_t t = {i, i + 1};
          slist.push_back(t);
        } while (++i < nsize - 1);
        const cachezr_t& s = fcache[nsize - 1];
        G4ThreeVector r(kx * s.r, ky * s.r, s.z);
        vlist.push_back(r);
        seg_t t = {nsize - 1, 0};
        slist.push_back(t);
      } while (0);
 
      // clip phi-side polygon by limiting planes
      for (const Plane_t& p : planes) {
        //  cout<<p.n<<" "<<p.d<<endl;
        clip(vlist, slist,  p.n, p.d);
        //  for(auto t:vlist) cout<<t<<" "; cout<<endl;
      }
      vector<bool> bv(vlist.size(), false);
 
      for (vector<seg_t>::const_iterator it = slist.begin(); it != slist.end(); ++it) {
        bv[(*it).i0] = true;
        bv[(*it).i1] = true;
      }
 
      for (unsigned int i = 0; i < vlist.size(); i++) {
        if (!bv[i]) continue;
        res.push_back(vlist[i]);
      }
    }
    return res;
  };
 
  auto RCross = [this](const G4ThreeVector & op, const G4ThreeVector & k, const G4ThreeVector & u) {
    // plane with origin at op and normal vector n = [k x u], k and u are orthogonal k*u = 0
    // plane equation r = t*k + s*u + op
    vector<solution_t> ts;
    int nsize = fcache.size();
    int i = 0;
    do {
      const cachezr_t& seg = fcache[i];
      // r0 -- cone radius at z0, c -- cone axis
      // cone equation is (r0 + tg * ((r-c0)*c))^2 = (r-c0)^2 - ((r-c0)*c)^2
      double r0 = seg.r, z0 = seg.z, tg = seg.ta, tg2 = tg * tg;
      double rtg = r0 * tg;
 
      G4ThreeVector o(op.x(), op.y(), op.z() - z0);
 
      double ko = k * o, uo = u * o, ck = k.z(), cu = u.z(), co = o.z();
      double k2 = 1, u2 = 1, o2 = o * o;
      double ck2 = ck * ck, cu2 = cu * cu, co2 = co * co;
      double dr2 = r0 * r0 - o2;
      if (seg.dz != 0.0) {
        double q0 = 1 + tg2;
        double q1 = co * q0 + rtg;
 
        double F00 = co2 * q0 + 2 * co * rtg + dr2;
        double F10 = 2 * (ck * q1 - ko);
        double F20 = ck2 * q0 - k2;
        double F01 = 2 * (cu * q1 - uo);
        double F11 = 2 * ck * cu * q0;
        double F02 = cu2 * q0 - u2;
 
        vector<solution_t> res = extremum(F02, F11, F20, F01, F10, F00);
        for (const solution_t& r : res) {
          double t = r.s, s = r.t;
          G4ThreeVector p = t * k + s * u + op;
          if (seg.zmin < p.z() && p.z() < seg.zmax) {
            solution_t e = {t, s};
            if (ftwopi || insector(p.x(), p.y()))
              ts.push_back(e);
          }
        }
      }
      double a = -(ck2 * u2 + cu2 * k2);
      if (a != 0) {
        if (abs(cu) > abs(ck)) {
          double b = 2 * (ck * (cu * uo - co * u2) - cu2 * ko);
          double c =  co * (2 * cu * uo - co * u2) + cu2 * dr2;
          vector<double> tv = quadsolve(a, b, c);
          for (double t : tv) {
            double s = -(co + ck * t) / cu;
            G4ThreeVector p = t * k + s * u + op;
            if (ftwopi || insector(p.x(), p.y())) {
              solution_t e = {t, s};
              ts.push_back(e);
            }
          }
        } else {
          double b = 2 * (cu * (ck * ko - co * k2) - ck2 * uo);
          double c =  co * (2 * ck * ko - co * k2) + ck2 * dr2;
          vector<double> sv = quadsolve(a, b, c);
          for (double s : sv) {
            double t = -(co + cu * s) / ck;
            G4ThreeVector p = t * k + s * u + op;
            if (ftwopi || insector(p.x(), p.y())) {
              solution_t e = {t, s};
              ts.push_back(e);
            }
          }
        }
      }
    } while (++i < nsize);
    return ts;
  };
 
  bool b1 = false, b2 = false;
  G4ThreeVector n0, n1, n2;
  switch (A) {
    case kXAxis: n0.set(1, 0, 0); n1.set(0, 1, 0); n2.set(0, 0, 1); b1 = bb.IsYLimited(); b2 = bb.IsZLimited(); break;
    case kYAxis: n0.set(0, 1, 0); n1.set(1, 0, 0); n2.set(0, 0, 1); b1 = bb.IsXLimited(); b2 = bb.IsZLimited(); break;
    case kZAxis: n0.set(0, 0, 1); n1.set(1, 0, 0); n2.set(0, 1, 0); b1 = bb.IsXLimited(); b2 = bb.IsYLimited(); break;
    default:                   break;
  }
 
  double dmin1 = -kInfinity, dmax1 = kInfinity;
  if (b1) {
    switch (A) {
      case kXAxis: dmin1 = bb.GetMinYExtent(); dmax1 = bb.GetMaxYExtent(); break;
      case kYAxis: dmin1 = bb.GetMinXExtent(); dmax1 = bb.GetMaxXExtent(); break;
      case kZAxis: dmin1 = bb.GetMinXExtent(); dmax1 = bb.GetMaxXExtent(); break;
      default:                   break;
    }
  }
 
  double dmin2 = -kInfinity, dmax2 = kInfinity;
  if (b2) {
    switch (A) {
      case kXAxis: dmin2 = bb.GetMinZExtent(); dmax2 = bb.GetMaxZExtent(); break;
      case kYAxis: dmin2 = bb.GetMinZExtent(); dmax2 = bb.GetMaxZExtent(); break;
      case kZAxis: dmin2 = bb.GetMinYExtent(); dmax2 = bb.GetMaxYExtent(); break;
      default:                   break;
    }
  }
 
  G4AffineTransform iT = T.Inverse();
  // axis to solid coordinates
  G4ThreeVector n0t = iT.TransformAxis(n0);
  G4ThreeVector smin = n0t * kInfinity, smax = (-kInfinity) * n0t; // extremum points in solid coordinate system
  double pmin = kInfinity, pmax = -pmin;
  if (b1 && b2) {
    G4ThreeVector corners[] = {n1* dmin1 + n2 * dmin2, n1* dmax1 + n2 * dmin2, n1* dmax1 + n2 * dmax2, n1* dmin1 + n2 * dmax2};
    for (G4ThreeVector& c : corners) iT.ApplyPointTransform(c); // to solid coordinates
 
    vector<Plane_t> planes;
    for (int i = 0; i < 4; i++) {
      const G4ThreeVector& c0 = corners[i], &c1 = corners[(i + 1) % 4];
      vector<double> dists = linecross(c0, n0t);
      //      cout<<"c0 "<<c0<<endl;
      for (double t : dists) {
        G4ThreeVector p = n0t * t + c0;
        double tt = t + c0 * n0t;
        //  cout<<p<<" "<<tt<<endl;
        if (pmax < tt) { pmax = tt; smax = p;}
        if (pmin > tt) { pmin = tt; smin = p;}
      }
 
      G4ThreeVector u = c1 - c0, un = u.unit();
      vector<solution_t> ts = RCross(c0, n0t, un);
      double umax = u.mag();
      for (solution_t r : ts) {
        if (0 < r.s && r.s < umax) {
          double tt = r.t + c0 * n0t;
          G4ThreeVector p = n0t * r.t + un * r.s + c0;
          //      cout<<r.t<<" "<<r.s<<" "<<smax<<endl;
          if (pmax < tt) { pmax = tt; smax = p;}
          if (pmin > tt) { pmin = tt; smin = p;}
        }
      }
      planes.push_back({ -un, un * c1});
    }
 
    vector<G4ThreeVector> vside = PhiCrossN(planes);
    for (G4ThreeVector& p : vside) {
      //      cout<<p<<endl;
      double tt = n0t * p;
      if (pmax < tt) { pmax = tt; smax = p;}
      if (pmin > tt) { pmin = tt; smin = p;}
    }
 
  } else if (b1 || b2) {
    G4ThreeVector limits[2], u;
    if (b1) {
      limits[0] = n1 * dmin1;
      limits[1] = n1 * dmax1;
      u = iT.TransformAxis(n2);
    } else {
      limits[0] = n2 * dmin2;
      limits[1] = n2 * dmax2;
      u = iT.TransformAxis(n1);
    }
 
    for (G4ThreeVector& c : limits) iT.ApplyPointTransform(c); // to solid coordinates
    for (int i = 0; i < 2; i++) {
      vector<solution_t> ts = RCross(limits[i], n0t, u);
      for (solution_t r : ts) {
        double tt = r.t + limits[i] * n0t;
        G4ThreeVector p = n0t * r.t + u * r.s + limits[i];
        //  cout<<r.t<<" "<<r.s<<" "<<endl;
        if (pmax < tt) { pmax = tt; smax = p;}
        if (pmin > tt) { pmin = tt; smin = p;}
      }
    }
 
    vector<Plane_t> planes(2);
    G4ThreeVector n;
    if (b1) {
      n = iT.TransformAxis(n1);
    } else {
      n = iT.TransformAxis(n2);
    }
    planes[0] = { n, -limits[0]* n};
    planes[1] = { -n, limits[1]* n};
    vector<G4ThreeVector> vside = PhiCrossN(planes);
 
    for (G4ThreeVector& p : vside) {
      //      double t = n0t*(p-limits[0]);
      double tt = n0t * p;
      //      cout<<tt<<" "<<p<<" "<<endl;
      if (pmax < tt) { pmax = tt; smax = p;}
      if (pmin > tt) { pmin = tt; smin = p;}
    }
  }
  // maximal distance in +- directions
  G4ThreeVector rp = maxdist(n0t), rm = maxdist(-n0t);
  if (bb.Inside(T.TransformPoint(rm))) {
    double tt = rm * n0t;
    if (pmin > tt) {pmin = tt; smin = rm;}
  }
  if (bb.Inside(T.TransformPoint(rp))) {
    double tt = rp * n0t;
    if (pmax < tt) {pmax = tt; smax = rp;}
  }
 
  // to mother volume coordinate system
  T.ApplyPointTransform(smin);
  T.ApplyPointTransform(smax);
  pmin = n0 * smin;
  pmax = n0 * smax;
 
  pmin -= kCarTolerance;
  pmax += kCarTolerance;
  //  bool hit = pmin > -kInfinity && pmax < kInfinity;
  bool hit = pmin < pmax;
 
#if COMPARE==10
  auto surfhit = [this, &bb, &T, &n0, &n0t](double & pmin, double & pmax, bool print = false)->bool {
    const int N = 1000 * 1000;
    if (fsurf.size() == 0) for (int i = 0; i < N; i++) fsurf.push_back(GetPointOnSurface());
 
    int umin = -1, umax = -1;
    double wmin = 1e99, wmax = -1e99;
    for (int i = 0; i < N; i++)
    {
      if (bb.Inside(T.TransformPoint(fsurf[i]))) {
        double w = n0t * fsurf[i];
        if (wmin > w) {wmin = w; umin = i;}
        if (wmax < w) {wmax = w; umax = i;}
      }
    }
    if (print)cout << umin << " " << umax << " " << wmin << " " << wmax << endl;
    if (umin >= 0 && umax >= 0)
    {
      G4ThreeVector qmin = fsurf[umin], qmax = fsurf[umax];
      T.ApplyPointTransform(qmin);
      T.ApplyPointTransform(qmax);
      pmin = n0 * qmin, pmax = n0 * qmax;
      return true;
    }
    return false;
  };
 
  bool res = fshape->CalculateExtent(A, bb, T, pMin, pMax);
  double srfmin = kInfinity, srfmax = -srfmin;
  bool sHit = surfhit(srfmin, srfmax);
  double diff = kCarTolerance;
  diff = 10;
  //  if (abs(pmin - pMin) > diff || abs(pmax - pMax) > diff || hit != res) {
  if ((abs(pmin - srfmin) > diff || abs(pmax - srfmax) > diff) && sHit) {
    cout << "===================================\n";
    cout << GetName() << " " << fcache.size() << " " << fphi << " " << fdphi << " " << ftwopi << "\n";
    cout << hit << " " << res << " " << b1 << " " << b2 << "\n";
    if (sHit) {
      cout << "ss " << srfmin << " " << srfmax << "\n";
    } else {
      cout << "ss : not in bounding box" << "\n";
    }
    cout << "my " << pmin << " " << pmax << "\n";
    cout << "tc " << pMin << " " << pMax << "\n";
    cout << "df " << pmin - pMin << " " << pmax - pMax << "\n";
    G4ThreeVector bmin(bb.GetMinXExtent(), bb.GetMinYExtent(), bb.GetMinZExtent());
    G4ThreeVector bmax(bb.GetMaxXExtent(), bb.GetMaxYExtent(), bb.GetMaxZExtent());
    cout << "Axis=" << A << " " << bmin << " " << bmax << " " << T << "\n";
    cout << rp << " " << rm << "\n";
    cout << smin << " " << smax << "\n";
    cout << flush;
    //      _exit(0);
  }
  //    cout<<endl;
#endif
  pMin = pmin;
  pMax = pmax;
 
  return hit;
}

Clone()

G4VSolid * Clone

(

)

const

Make a clone of the object.

Definition at line 1816 of file BelleLathe.cc.

{
  return new BelleLathe(*this);
}

ComputeDimensions()

void ComputeDimensions	(	G4VPVParameterisation *	p,
		const G4int	n,
		const G4VPhysicalVolume *	pRep
	)

compute the dimensions

Definition at line 345 of file BelleLathe.cc.

{
  G4Exception("BelleLathe::ComputeDimensions()",
              "GeomSolids0001", FatalException,
              "BelleLathe does not support Parameterisation.");
  // std::cout<<"ComputeDimensions"<<std::endl;
  // p->ComputeDimensions(*this,n,pRep);
}

CreatePolyhedron()

G4Polyhedron * CreatePolyhedron

(

)

const

create polyhedron

Definition at line 2008 of file BelleLathe.cc.

{
  eartrim();
  return new PolyhedronBelleLathe(fcontour, ftlist, fphi, fdphi);
}

DescribeYourselfTo()

void DescribeYourselfTo

(

G4VGraphicsScene &

scene

)

const

Visualisation function.

Definition at line 1849 of file BelleLathe.cc.

{
  scene.AddSolid(*this);
}

DistanceToIn() [1/2]

G4double DistanceToIn

(

const G4ThreeVector &

p

)

const

Calculate exact shortest distance to any boundary from outside.

Definition at line 1163 of file BelleLathe.cc.

{
  COUNTER(2);
  double d = 0;
  //  int sector = 0, plane = 0;
  if (ftwopi) {
    zr_t r = {p.z(), p.perp()};
    d = max(mindist(r), 0.0);
  } else {
    double d0 = fn0x * p.x() + fn0y * p.y();
    double d1 = fn1x * p.x() + fn1y * p.y();
 
    if (fgtpi) {
      if (d0 > 0 && d1 > 0) { // outside sector
        if (d0 < d1) {
          zr_t r = {p.z(), -fn0y * p.x() + fn0x * p.y()}; // projection on plane
          d = sqrt(pow(max(mindist(r), 0.0), 2) + d0 * d0);
        } else {
          zr_t r = {p.z(),  fn1y * p.x() - fn1x * p.y()}; // projection on plane
          d = sqrt(pow(max(mindist(r), 0.0), 2) + d1 * d1);
        }
      } else {
        zr_t r = {p.z(), p.perp()};
        d = max(mindist(r), 0.0);
      }
    } else {
      if (d0 > 0 || d1 > 0) { // outside sector
        if (d0 < 0) {
          zr_t r = {p.z(),  fn1y * p.x() - fn1x * p.y()}; // projection on plane
          d = sqrt(pow(max(mindist(r), 0.0), 2) + d1 * d1);
        } else {
          zr_t r = {p.z(), -fn0y * p.x() + fn0x * p.y()}; // projection on plane
          d = sqrt(pow(max(mindist(r), 0.0), 2) + d0 * d0);
        }
      } else {
        zr_t r = {p.z(), p.perp()};
        d = max(mindist(r), 0.0);
      }
    }
  }
#if COMPARE==1
  //  double dd = fshape->Inside(p) == 2 ? 0.0 : fshape->DistanceToIn(p);
  double dd = fshape->DistanceToIn(p);
  //  if (abs(d - dd) > kCarTolerance) {
  if (dd > d && abs(d - dd) > kCarTolerance) {
    int oldprec = cout.precision(16);
    EInside inside = fshape->Inside(p);
    zr_t r = {p.z(), p.perp()};
    cout << GetName() << " DistanceToIn(p) " << p << " " << r << " " << d << " " << dd << " " << d - dd << " " << inside << endl;
    cout.precision(oldprec);
    //    exit(0);
  }
#endif
  MATCHOUT("BelleLathe::DistanceToIn(p) " << p << " res= " << d);
  return d;
}

DistanceToIn() [2/2]

G4double DistanceToIn	(	const G4ThreeVector &	p,
		const G4ThreeVector &	v
	)		const

Calculate distance to shape from outside - return kInfinity if no intersection.

Definition at line 1253 of file BelleLathe.cc.

{
  //  return fshape->DistanceToIn(p, n);
  auto getnormal = [this, &p, &n](int i, double t) ->G4ThreeVector{
    const int imax = fcache.size();
    G4ThreeVector o;
    if (i < 0)
    {
    } else if (i < imax)
    {
      const cachezr_t& s = fcache[i];
      if (s.dz == 0.0) {
        o.setZ(copysign(1, s.dr));
      } else {
        double x = p.x() + n.x() * t;
        double y = p.y() + n.y() * t;
        double sth = s.dr * s.is, cth = -s.dz * s.is;
        double ir = cth / sqrt(x * x + y * y);
        o.set(x * ir, y * ir, sth);
      }
    } else if (i == imax)
    {
      o.setX(fn0x), o.setY(fn0y);
    } else
    {
      o.setX(fn1x), o.setY(fn1y);
    }
    return o;
  };
 
  auto hitside = [this, &p, &n](double t, const cachezr_t& s) -> bool {
    double z = p.z() + n.z() * t;
    //    cout<<t<<" "<<x<<" "<<y<<" "<<z<<endl;
    bool k = s.zmin < z && z <= s.zmax;
    if (k && !ftwopi)
    {
      double x = p.x() + n.x() * t;
      double y = p.y() + n.y() * t;
      k = k && insector(x, y);
    }
    return k;
  };
 
  auto hitzside = [this, &p, &n](double t, const cachezr_t& s) -> bool {
    double x = p.x() + n.x() * t;
    double y = p.y() + n.y() * t;
    double r2 = x * x + y * y;
    bool k = s.r2min <= r2 && r2 < s.r2max;
    if (k && !ftwopi)
    {
      k = k && insector(x, y);
    }
    return k;
  };
 
  auto hitphi0side = [this, &p, &n](double t) -> bool {
    double x = p.x() + n.x() * t;
    double y = p.y() + n.y() * t;
    double r = x * fc0 + y * fs0;
    if (r >= frmin)
    {
      double z = p.z() + n.z() * t;
      zr_t zr = {z, r};
      return wn_poly(zr) == 2;
    }
    return false;
  };
 
  auto hitphi1side = [this, &p, &n](double t) -> bool {
    double x = p.x() + n.x() * t;
    double y = p.y() + n.y() * t;
    double r = x * fc1 + y * fs1;
    if (r >= frmin)
    {
      double z = p.z() + n.z() * t;
      zr_t zr = {z, r};
      return wn_poly(zr) == 2;
    }
    return false;
  };
 
  double tmin = kInfinity;
  const int imax = fcache.size();
  int iseg = -1, isurface = -1;
  const double delta = 0.5 * kCarTolerance;
  double inz = 1 / n.z();
  double nn = dotxy(n, n), np = dotxy(n, p), pp = dotxy(p, p);
  double pz = p.z(), pr = sqrt(pp);
  for (int i = 0; i < imax; i++) { // loop over sides
    const cachezr_t& s = fcache[i];
    double dz = pz - s.z, dr = pr - s.r;
    double d = dz * s.dr - dr * s.dz;
    bool surface = false;
    if (abs(d * s.is) < delta) {
      double dot = dz * s.dz + dr * s.dr;
      if (dot >= 0 && dot <= s.s2) {
        surface = true;
        isurface = i;
      }
    }
    if (s.dz == 0.0) { // z-plane
      if (!surface) {
        double t = -dz * inz;
        if (0 < t && t < tmin && hitzside(t, s)) { tmin = t; iseg = i;}
      }
    } else {
      double A, B, R2;
      if (s.dr == 0.0) { // cylinder
        double R = s.r;
        R2 = R * R;
 
        A = -nn;
        B = np;
      } else { // cone
        double taz = s.ta * dz;
        double R = taz + s.r;
        R2 = R * R;
 
        double nzta = n.z() * s.ta;
        A = nzta * nzta - nn;
        B = np - nzta * R;
      }
      double C = pp - R2;
      double D = B * B + C * A;
      if (D > 0) {
        // double sD = sqrt(D), iA = 1 / A;
        // double t0 = (B + sD) * iA, t1 = (B - sD) * iA;
        double sD = sqrt(D), sum = B + copysign(sD, B);
        double t0 = -C / sum, t1 = sum / A;
        if (surface) { // exclude solution on surface
          if (abs(t0) > abs(t1)) {
            if (t0 > 0 && t0 < tmin && hitside(t0, s)) { tmin = t0; iseg = i;}
          } else {
            if (t1 > 0 && t1 < tmin && hitside(t1, s)) { tmin = t1; iseg = i;}
          }
        } else {
          if (t0 > 0 && t0 < tmin && hitside(t0, s)) { tmin = t0; iseg = i;}
          if (t1 > 0 && t1 < tmin && hitside(t1, s)) { tmin = t1; iseg = i;}
        }
      }
    }
  }
 
  if (!ftwopi) {
    do { // side at phi0
      double vn = fn0x * n.x() + fn0y * n.y();
      if (vn < 0) {
        double d = fn0x * p.x() + fn0y * p.y();
        double t = -d / vn;
        if (hitphi0side(t)) {
          bool surface = std::abs(d) < delta;
          if (surface) {
            tmin = 0; iseg = imax + 0;
          } else {
            if (0 < t && t < tmin) {tmin = t; iseg = imax + 0;}
 
          }
        }
      }
    } while (0);
 
    do { // side at phi0+dphi
      double vn = fn1x * n.x() + fn1y * n.y();
      if (vn < 0) {
        double d = fn1x * p.x() + fn1y * p.y();
        double t = -d / vn;
        if (hitphi1side(t)) {
          bool surface = std::abs(d) < delta;
          if (surface) {
            tmin = 0; iseg = imax + 1;
          } else {
            if (0 < t && t < tmin) { tmin = t; iseg = imax + 1;}
          }
        }
      }
    } while (0);
  }
 
  if (iseg >= 0) {
    if (getnormal(iseg, tmin)*n > 0) tmin = 0;
    //    if (getnormal(iseg, tmin)*n > 0) tmin = kInfinity; // mimic genericpolycone
  }
 
  auto convex = [this, imax](int i) -> bool{
    if (i < imax)
      return fcache[i].isconvex;
    else
      return !fgtpi;
  };
 
  if (tmin >= 0 && tmin < kInfinity) {
    if (isurface >= 0) if (convex(isurface) && getnormal(isurface, 0)*n >= 0) tmin = kInfinity;
  } else {
    if (Inside(p) == kSurface) {
      if (isurface >= 0) {
        tmin = (getnormal(isurface, 0) * n >= 0) ? kInfinity : 0; // mimic genericpolycone
      }
    }
  }
 
#if COMPARE==1
  //  double dd = fshape->Inside(p) == 2 ? 0.0 : fshape->DistanceToIn(p, n);
  double dd = fshape->DistanceToIn(p, n);
  if (abs(tmin - dd) > 1e-10) {
    int oldprec = cout.precision(16);
    EInside inside = fshape->Inside(p);
    cout << GetName() << " DistanceToIn(p,v) " << p << " " << n << " " << tmin << " " << dd << " " << tmin - dd << " " << inside << " "
         << Inside(p) << " iseg = " << iseg << " " << isurface << endl;
    if (isurface >= 0) cout << getnormal(isurface, 0) << endl;
    cout.precision(oldprec);
  }
#endif
  tmin = max(0.0, tmin);
  MATCHOUT("BelleLathe::DistanceToIn(p,n) " << p << " " << n << " res= " << tmin);
  return tmin;
}

DistanceToOut() [1/2]

G4double DistanceToOut

(

const G4ThreeVector &

p

)

const

Calculate exact shortest distance to any boundary from inside.

Definition at line 1222 of file BelleLathe.cc.

{
  //  return ref->DistanceToOut(p);
  COUNTER(3);
  zr_t r = {p.z(), p.perp()};
  double d = mindist(r);
  if (!ftwopi) {
    double d0 = fn0x * p.x() + fn0y * p.y();
    double d1 = fn1x * p.x() + fn1y * p.y();
    if (fgtpi) {
      d = max(d, min(d0, d1));
    } else {
      d = max(d, max(d0, d1));
    }
  }
  d = max(-d, 0.0);
#if COMPARE==1
  double dd = fshape->Inside(p) == 0 ? 0.0 : fshape->DistanceToOut(p);
  if (abs(d - dd) > kCarTolerance) {
    int oldprec = cout.precision(16);
    zr_t r = {p.z(), p.perp()};
    //    cout<<r<<endl;
    cout << GetName() << " DistanceToOut(p) " << p << " " << r << " " << d << " " << dd << " " << d - dd << endl;
    cout.precision(oldprec);
  }
#endif
  MATCHOUT("BelleLathe::DistanceToOut(p) " << p.x() << " " << p.y() << " " << p.z() << " res= " << d);
  return d;
}

DistanceToOut() [2/2]

G4double DistanceToOut	(	const G4ThreeVector &	p,
		const G4ThreeVector &	v,
		const G4bool	calcNorm = false,
		G4bool *	validNorm = 0,
		G4ThreeVector *	n = 0
	)		const

Calculate distance to surface of shape from inside.

Definition at line 1471 of file BelleLathe.cc.

{
  //  return fshape->DistanceToOut(p, n, calcNorm, IsValid, _n);
  auto getnormal = [this, &p, &n](int i, double t)->G4ThreeVector{
    const int imax = fcache.size();
    G4ThreeVector o;
    if (i < 0)
    {
    } else if (i < imax)
    {
      const cachezr_t& s = fcache[i];
      if (s.dz == 0.0) {
        o.setZ(copysign(1, s.dr));
      } else {
        double x = p.x() + n.x() * t;
        double y = p.y() + n.y() * t;
        double sth = s.dr * s.is, cth = -s.dz * s.is;
        double ir = cth / sqrt(x * x + y * y);
        o.set(x * ir, y * ir, sth);
      }
    } else if (i == imax)
    {
      o.setX(fn0x), o.setY(fn0y);
    } else
    {
      o.setX(fn1x), o.setY(fn1y);
    }
    return o;
  };
 
  double nn = dotxy(n, n), np = dotxy(n, p), pp = dotxy(p, p);
  auto hitside = [this, &p, &n, nn, np, pp](double t, const cachezr_t& s) -> bool {
    double z = p.z() + n.z() * t;
    //    cout<<t<<" "<<x<<" "<<y<<" "<<z<<endl;
    double dot = n.z() * s.dr * sqrt(pp + ((np + np) + nn * t) * t) - s.dz * (np + nn * t);
    bool k = s.zmin < z && z <= s.zmax && dot > 0;
    if (k && !ftwopi)
    {
      double x = p.x() + n.x() * t;
      double y = p.y() + n.y() * t;
 
      k = k && insector(x, y);
    }
    return k;
  };
 
  auto hitzside = [this, &p, &n](double t, const cachezr_t& s) -> bool {
    double x = p.x() + n.x() * t;
    double y = p.y() + n.y() * t;
    double r2 = x * x + y * y;
    bool k = s.dr * n.z() > 0 && s.r2min <= r2 && r2 < s.r2max;
    if (k && !ftwopi)
    {
      k = k && insector(x, y);
    }
    return k;
  };
 
  auto hitphi0side = [this, &p, &n](double t) -> bool {
    double x = p.x() + n.x() * t;
    double y = p.y() + n.y() * t;
    double r = x * fc0 + y * fs0;
    if (r >= frmin)
    {
      double z = p.z() + n.z() * t;
      zr_t zr = {z, r};
      return wn_poly(zr) == 2;
    }
    return false;
  };
 
  auto hitphi1side = [this, &p, &n](double t) -> bool {
    double x = p.x() + n.x() * t;
    double y = p.y() + n.y() * t;
    double r = x * fc1 + y * fs1;
    if (r >= frmin)
    {
      double z = p.z() + n.z() * t;
      zr_t zr = {z, r};
      return wn_poly(zr) == 2;
    }
    return false;
  };
 
  COUNTER(5);
  double tmin = kInfinity;
 
  const int imax = fcache.size();
  int iseg = -1, isurface = -1;
 
  const double delta = 0.5 * kCarTolerance;
  double inz = 1 / n.z();
  double pz = p.z(), pr = sqrt(pp);
 
  for (int i = 0; i < imax; i++) {
    const cachezr_t& s = fcache[i];
 
    double d = (pz - s.z) * s.dr - (pr - s.r) * s.dz;
    bool surface = abs(d * s.is) < delta;
    if (surface) isurface = i;
    if (s.dz == 0.0) {
      double t = (s.z - p.z()) * inz;
      if (surface) {
        if (hitzside(t, s)) {tmin = 0; iseg = i; break;}
      } else {
        if (0 < t && t < tmin && hitzside(t, s)) {tmin = t; iseg = i;}
      }
    } else {
      double A, B, R2;
      if (s.dr == 0.0) { // cylinder
        double R = s.r;
        R2 = R * R;
 
        A = -nn;
        B = np;
      } else { // cone
        double taz = s.ta * (p.z() - s.z);
        double R = taz + s.r;
        R2 = R * R;
 
        double nzta = n.z() * s.ta;
        A = nzta * nzta - nn;
        B = np - nzta * R;
      }
      double C = pp - R2;
      double D = B * B + C * A;
      if (D > 0) {
        double sD = sqrt(D);
        double sum = B + copysign(sD, B);
        double t0 = -C / sum, t1 = sum / A;
        //    cout<<t0<<" "<<t1<<" "<<endl;
        if (surface) { //exclude solution on surface
          if (abs(t0) < abs(t1)) {
            if (hitside(t0, s)) { tmin = 0; iseg = i; break;}
            if (0 < t1 && t1 < tmin && hitside(t1, s)) { tmin = t1; iseg = i;}
          } else {
            if (hitside(t1, s)) { tmin = 0; iseg = i; break;}
            if (0 < t0 && t0 < tmin && hitside(t0, s)) { tmin = t0; iseg = i;}
          }
        } else { // check both solutions
          if (0 < t0 && t0 < tmin && hitside(t0, s)) { tmin = t0; iseg = i;}
          if (0 < t1 && t1 < tmin && hitside(t1, s)) { tmin = t1; iseg = i;}
        }
      }
    }
    //      cout<<i<<" "<<iseg<<" "<<sqrt(d*d*s.is2)<<" "<<tmin<<" "<<s.zmin<<" "<<s.zmax<<endl;
  }
 
  if (!ftwopi) {
    do { // side at phi0
      double vn = fn0x * n.x() + fn0y * n.y();
      if (vn > 0) {
        double d = fn0x * p.x() + fn0y * p.y();
        double t = -d / vn;
        if (hitphi0side(t)) {
          bool surface = std::abs(d) < delta;
          if (surface) {
            tmin = 0; iseg = imax + 0;
          } else {
            if (0 < t && t < tmin) {tmin = t; iseg = imax + 0;}
 
          }
        }
      }
    } while (0);
 
    do { // side at phi0+dphi
      double vn = fn1x * n.x() + fn1y * n.y();
      if (vn > 0) {
        double d = fn1x * p.x() + fn1y * p.y();
        double t = -d / vn;
        if (hitphi1side(t)) {
          bool surface = std::abs(d) < delta;
          if (surface) {
            tmin = 0; iseg = imax + 1;
          } else {
            if (0 < t && t < tmin) { tmin = t; iseg = imax + 1;}
          }
        }
      }
    } while (0);
  }
 
  auto convex = [this, imax](int i) -> bool{
    if (i < imax)
      return fcache[i].isconvex;
    else
      return !fgtpi;
  };
 
  if (calcNorm) {
    if (tmin >= 0 && tmin < kInfinity) {
      *_n = getnormal(iseg, tmin);
      *IsValid = convex(iseg);
    } else {
      if (Inside(p) == kSurface) {
        if (isurface >= 0) {
          *_n = getnormal(isurface, tmin);
          *IsValid = convex(isurface);
          tmin = 0;
        }
      } else {
        *IsValid = false;
      }
    }
  }
  //  cout<<"tmin "<<tmin<<endl;
#if COMPARE==1
  do {
    // G4ThreeVector p0(1210.555046, -292.9578965, -36.71671492);
    // if ((p - p0).mag() > 1e-2)continue;
    bool isvalid;
    G4ThreeVector norm;
    double dd = fshape->DistanceToOut(p, n, calcNorm, &isvalid, &norm);
    if (abs(tmin - dd) > 1e-10 || (calcNorm && *IsValid != isvalid)) {
      int oldprec = cout.precision(16);
      cout << GetName() << " DistanceToOut(p,v) p,n =" << curl_t(p) << curl_t(n) << " calcNorm=" << calcNorm
           << " myInside=" << Inside(p) << " tmin=" << tmin << " dd=" << dd << " d=" << tmin - dd << " iseg=" << iseg << " isurf=" << isurface
           << " ";
      if (calcNorm) cout << "myIsValid = " << *IsValid << " tIsValid=" << isvalid << " myn=" << (*_n) << " tn=" << (norm);
      cout << endl;
      cout.precision(oldprec);
      //      _exit(0);
    }
  } while (0);
#endif
  MATCHOUT("BelleLathe::DistanceToOut(p,n) " << p << " " << n << " res= " << tmin);
  return tmin;
}

eartrim()

void eartrim ( ) const

protected

ear trim

Definition at line 1702 of file BelleLathe.cc.

{
  ftlist.clear();
  unsigned int n = fcontour.size();
  vector<int> indx;
  for (unsigned int i = 0; i < n; i++) indx.push_back(i);
  int count = 0;
  while (indx.size() > 3 && ++count < 200) {
    unsigned int ni = indx.size();
    for (unsigned int i = 0; i < ni; i++) {
      int i0 = indx[i], i1 = indx[(i + 1) % ni], i2 = indx[(i + 2) % ni];
      double nx = fcontour[i2].z - fcontour[i0].z;
      double ny = fcontour[i2].r - fcontour[i0].r;
      double d1 = nx * (fcontour[i1].r - fcontour[i0].r) - ny * (fcontour[i1].z - fcontour[i0].z);
      bool ear = true;
      for (unsigned int j = 0; j < ni - 3; j++) {
        int k = indx[(i + 3 + j) % ni];
        double d = nx * (fcontour[k].r - fcontour[i0].r) - ny * (fcontour[k].z - fcontour[i0].z);
        if (d * d1 > 0) {
          ear = false;
          break;
        }
      }
      if (ear) {
        triangle_t t = {i0, i1, i2};
        ftlist.push_back(t);
        indx.erase(indx.begin() + (i + 1) % ni);
        break;
      }
    }
  }
  if (indx.size() == 3) {
    triangle_t t = {indx[0], indx[1], indx[2]};
    ftlist.push_back(t);
  }
}

GetCubicVolume()

G4double GetCubicVolume ( )

inline

Get cubic volume.

Definition at line 123 of file BelleLathe.h.

{return fCubicVolume;}

GetEntityType()

G4GeometryType GetEntityType

(

)

const

Get entity type.

Definition at line 1810 of file BelleLathe.cc.

{
  return G4String("BelleLathe");
}

GetPointOnSurface()

G4ThreeVector GetPointOnSurface

(

)

const

Get point on surface.

Definition at line 1764 of file BelleLathe.cc.

{
  auto GetPointOnTriangle = [this](const triangle_t& t)-> G4ThreeVector{
    // barycentric coordinates
    double a1 = CLHEP::RandFlat::shoot(0., 1.), a2 = CLHEP::RandFlat::shoot(0., 1.);
    if (a1 + a2 > 1) { a1 = 1 - a1; a2 = 1 - a2;}
    double a0 = 1 - (a1 + a2);
    const zr_t& p0 = fcontour[t.i0], &p1 = fcontour[t.i1], &p2 = fcontour[t.i2];
    zr_t p = {p0.z* a0 + p1.z* a1 + p2.z * a2, p0.r* a0 + p1.r* a1 + p2.r * a2};
    double c, s;
    if (CLHEP::RandFlat::shoot(0., 1.) > 0.5) // select phi side
    {
      c = -fn0y; s = fn0x;
    } else
    {
      c = fn1y; s = -fn1x;
    }
    G4ThreeVector r1(p.r * c, p.r * s, p.z);
    return r1;
  };
 
  double rnd = CLHEP::RandFlat::shoot(0., farea.back());
  std::vector<double>::const_iterator it = std::lower_bound(farea.begin(), farea.end(), rnd);
  unsigned int i = it - farea.begin();
 
  if (!ftwopi) {
    if (i < ftlist.size()) {
      return GetPointOnTriangle(ftlist[i]);
    } else {
      i -= ftlist.size();
    }
  }
 
  const cachezr_t& s = fcache[i];
  double I = 2 * s.r + s.dr;
  double Iw = CLHEP::RandFlat::shoot(0., I);
  double q = sqrt(Iw * s.dr + s.r * s.r);
  double t = Iw / (q + s.r);
  double z = s.z + s.dz * t;
  double r = s.r + s.dr * t;
  double phi = CLHEP::RandFlat::shoot(fphi, fphi + fdphi);
  double x = r * cos(phi), y = r * sin(phi);
  return G4ThreeVector(x, y, z);
}

GetSurfaceArea()

G4double GetSurfaceArea ( )

inline

Get surface area.

Definition at line 126 of file BelleLathe.h.

{return fSurfaceArea;}

getvolarea()

void getvolarea ( )

protected

get volume area

Definition at line 1739 of file BelleLathe.cc.

{
  double vol = 0;
  for (const cachezr_t& s : fcache) vol += s.dz * ((3 * s.r) * (s.r + s.dr) + s.dr * s.dr);
  fCubicVolume = -fdphi * vol / 6;
 
  double totalarea = 0;
  if (!ftwopi) {
    eartrim();
    for (const triangle_t& t : ftlist) {
      const zr_t& p0 = fcontour[t.i0], &p1 = fcontour[t.i1], &p2 = fcontour[t.i2];
      double area = (p1.z - p0.z) * (p2.r - p0.r) - (p1.r - p0.r) * (p2.z - p0.z);
      totalarea += abs(area);
      farea.push_back(totalarea);
    }
  }
 
  for (const cachezr_t& s : fcache) {
    double area = fdphi * (s.r + 0.5 * s.dr) * sqrt(s.dz * s.dz + s.dr * s.dr);
    totalarea += area;
    farea.push_back(totalarea);
  }
  fSurfaceArea = farea.back();
}

Init()

void Init ( const std::vector< zr_t > &  c, double  phi0, double  dphi  )

protected

initialize

Definition at line 101 of file BelleLathe.cc.

{
  vector<zr_t> contour = c;
  // remove duplicated vertices
  do {
    vector<zr_t>::iterator it0 = contour.begin(), it1 = it0 + 1;
    for (; it1 != contour.end();) {
      const zr_t& s0 = *it0, &s1 = *it1;
      if (abs(s0.z - s1.z) < kCarTolerance && abs(s0.r - s1.r) < kCarTolerance)
        it1 = contour.erase(it1);
      else {
        ++it0; ++it1;
      }
    }
    const zr_t& s0 = *it0, &s1 = contour[0]; // cppcheck-suppress invalidContainer ; contour should be valid here
    if (abs(s0.z - s1.z) < kCarTolerance && abs(s0.r - s1.r) < kCarTolerance) contour.erase(it0);
  } while (0);
 
  // remove vertices on the same line
  do {
    vector<zr_t>::iterator it0 = contour.begin(), it1 = it0 + 1, it2 = it1 + 1;
    for (; it0 != contour.end();) {
      const zr_t& s0 = *it0, &s1 = *it1, &s2 = *it2;
      double dr2 = s2.r - s0.r, dz2 = s2.z - s0.z;
      double d = (s1.z - s0.z) * dr2 - (s1.r - s0.r) * dz2;
 
      if (d * d < kCarTolerance * kCarTolerance * (dr2 * dr2 + dz2 * dz2)) {
        it1 = contour.erase(it1);
        it2 = it1;
        if (++it2 >= contour.end()) it2 = contour.begin();
        it0 = it1;
        if (--it0 < contour.begin()) it0 = (++contour.rbegin()).base();
 
      } else {
        ++it0;
        if (++it1 >= contour.end()) it1 = contour.begin();
        if (++it2 >= contour.end()) it2 = contour.begin();
      }
 
    }
  } while (0);
 
  double sum = 0;
  zr_t p0 = contour[0];
  for (int i = 1, imax = contour.size(); i < imax; i++) {
    zr_t p1 = contour[i];
    sum += (p1.z - p0.z) * (p1.r + p0.r);
    p0 = p1;
  }
  zr_t p1 = contour[0];
  sum += (p1.z - p0.z) * (p1.r + p0.r);
 
  // If contour is Clockwise: reverse contour
  if (sum > 0)
    std::reverse(contour.begin(), contour.end());
 
  fcontour = contour;
 
  auto convexside = [this](cachezr_t& s, double eps) -> void {
    s.isconvex = false;
    if (s.dz > 0) return;
    vector<zr_t>::const_iterator it = fcontour.begin();
    double a = s.dz * s.is, b = s.dr * s.is, cc = b * s.z - a * s.r;
    bool dp = false, dm = false;
    s.isconvex = true;
    do
    {
      const zr_t& p = *it;
      double d = a * p.r - b * p.z + cc; // distance to line
      dm = dm || (d < -eps);
      dp = dp || (d >  eps);
      if (dm && dp) {s.isconvex = false; return;}
    } while (++it != fcontour.end());
  };
 
  frmin =  kInfinity;
  frmax = -kInfinity;
  fzmin =  kInfinity;
  fzmax = -kInfinity;
  fcache.reserve(fcontour.size());
  for (int i = 0, n = fcontour.size(); i < n; i++) {
    const zr_t& s0 = fcontour[i], &s1 = fcontour[(i + 1) % n];
    cachezr_t t;
    t.z = s0.z;
    t.r = s0.r;
    t.dz = s1.z - s0.z;
    t.dr = s1.r - s0.r;
    t.s2 = t.dz * t.dz + t.dr * t.dr;
    t.is2 = 1 / t.s2;
    t.is = sqrt(t.is2);
    t.zmin = min(s0.z, s1.z);
    t.zmax = max(s0.z, s1.z);
    t.r2min = pow(min(s0.r, s1.r), 2);
    t.r2max = pow(max(s0.r, s1.r), 2);
    t.ta = (s1.r - s0.r) / (s1.z - s0.z);
    convexside(t, kCarTolerance);
    fcache.push_back(t);
 
    frmax = max(frmax, s0.r);
    frmin = min(frmin, s0.r);
    fzmax = max(fzmax, s0.z);
    fzmin = min(fzmin, s0.z);
  }
 
  fphi = phi0;
  fdphi = dphi;
 
  fdphi = std::min(2 * M_PI, fdphi);
  fdphi = std::max(0.0, fdphi);
  fc0 = cos(fphi);
  fs0 = sin(fphi);
  fc1 = cos(fphi + fdphi);
  fs1 = sin(fphi + fdphi);
 
  fn0x =  fs0;
  fn0y = -fc0;
  fn1x = -fs1;
  fn1y =  fc1;
  fgtpi = fdphi > M_PI;
  ftwopi = abs(fdphi - 2 * M_PI) < kCarTolerance;
 
  //  cout << ftwopi << " " << fgtpi << " " << fn0y << " " << fn0x << " " << fn1y << " " << fn1x << endl;
 
  for (int i = 0, n = fcontour.size(); i < n; i++) {
    const zr_t& s = fcontour[i];
    fz.push_back(s.z);
  }
  sort(fz.begin(), fz.end());
  fz.erase(std::unique(fz.begin(), fz.end()), fz.end());
 
  for (int i = 1, ni = fz.size(); i < ni; i++) {
    double a = fz[i - 1], b = fz[i];
    findx.push_back(fseg.size());
    for (int j = 0, nj = fcache.size(); j < nj; j++) {
      const cachezr_t& sj = fcache[j];
      double cc = sj.zmin, d = sj.zmax;
      if (cc != d and b > cc and d > a) { // overlap
        fseg.push_back(j);
      }
    }
  }
  findx.push_back(fseg.size());
 
  getvolarea();
 
#if COMPARE>0
  auto getpolycone = [](const G4String & pName, double phi0, double dphi, const vector<zr_t>& c) -> G4GenericPolycone* {
    vector<double> r, z;
    r.reserve(c.size());
    z.reserve(c.size());
    for (int i = 0, imax = c.size(); i < imax; i++)
    {
      r.push_back(c[i].r);
      z.push_back(c[i].z);
    }
    return new G4GenericPolycone(pName, phi0, dphi, c.size(), r.data(), z.data());
  };
  fshape = getpolycone(GetName(), phi0, dphi, fcontour);
#else
  fshape = nullptr;
#endif
//  StreamInfo(G4cout);
}

insector()

bool insector ( double  x, double  y  ) const

inlineprotected

True if (x,y) is within the shape rotation.

Definition at line 937 of file BelleLathe.cc.

{
  double d0 = fn0x * x + fn0y * y;
  double d1 = fn1x * x + fn1y * y;
  bool b0 = d0 < 0, b1 = d1 < 0;
  return fgtpi ? b0 || b1 : b0 && b1;
}

Inside()

EInside Inside

(

const G4ThreeVector &

p

)

const

Return whether point inside/outside/on surface, using tolerance.

Definition at line 983 of file BelleLathe.cc.

{
  COUNTER(0);
  const double delta = 0.5 * kCarTolerance;
  EInside res = kInside;
  if (!ftwopi) {
    double d0 = fn0x * p.x() + fn0y * p.y();
    double d1 = fn1x * p.x() + fn1y * p.y();
    if (fgtpi) {
      if (d0 > delta && d1 > delta) { res = kOutside;}
      else if (d0 > -delta && d1 > -delta) { res = kSurface;}
    } else {
      if (d0 > delta || d1 > delta) { res = kOutside;}
      else if (d0 > -delta || d1 > -delta) { res = kSurface;}
    }
  }
  if (res != kOutside) {
    zr_t r = {p.z(), p.perp()};
    double d = mindist(r);
    if (res == kSurface && d < delta) res = kSurface;
    else if (d > delta) res = kOutside;
    else if (d > -delta) res = kSurface;
    else              res = kInside;
  }
 
#if COMPARE==1
  EInside dd = fshape->Inside(p);
  if (1 || dd != res) {
    double d0 = fn0x * p.x() + fn0y * p.y();
    double d1 = fn1x * p.x() + fn1y * p.y();
    //    if (abs(d0) > kCarTolerance && abs(d1) > kCarTolerance) {
    int oldprec = cout.precision(16);
    zr_t r = {p.z(), p.perp()};
    cout << GetName() << " Inside(p) " << p << " " << r << " my=" << res << " tc=" << dd <<
         " dist=" << mindist(r) << " " << d0 << " " << d1 << endl;
    cout.precision(oldprec);
    //    }
  }
#endif
  MATCHOUT("BelleLathe::Inside(p) " << p << " res= " << res);
  return res;
}

linecross()

vector< double > linecross ( const G4ThreeVector &  p, const G4ThreeVector &  n  ) const

protected

calculate all ray solid's surface intersection return ordered vector

Definition at line 428 of file BelleLathe.cc.

{
  auto hitside = [this, &p, &n](double t, double zmin, double zmax) -> bool {
    double z = p.z() + n.z() * t;
    bool k = zmin < z && z <= zmax;
    if (k && !ftwopi)
    {
      double x = p.x() + n.x() * t;
      double y = p.y() + n.y() * t;
      k = k && insector(x, y);
    }
    return k;
  };
 
  auto hitzside = [this, &p, &n](double t, double r2min, double r2max) -> bool {
    double x = p.x() + n.x() * t;
    double y = p.y() + n.y() * t;
    double r2 = x * x + y * y;
    bool k = r2min <= r2 && r2 < r2max;
    if (k && !ftwopi)
    {
      k = k && insector(x, y);
    }
    return k;
  };
 
  vector<double> tc;
  double inz = 1 / n.z();
  double nn = Belle2::ECL::dotxy(n, n), np = dotxy(n, p), pp = dotxy(p, p);
  for (const cachezr_t& s : fcache) { // loop over sides
    if (s.dz == 0.0) { // z-plane
      double t = (s.z - p.z()) * inz;
      if (hitzside(t, s.r2min, s.r2max)) { tc.push_back(t); }
    } else {
      double ta = s.ta;
      double A, B, R2;
      if (s.dr == 0.0) { // cylinder
        double R = s.r;
        R2 = R * R;
 
        A = -nn;
        B = np;
      } else { // cone
        double taz = ta * (p.z() - s.z);
        double R = taz + s.r;
        R2 = R * R;
 
        double nzta = n.z() * ta;
        A = nzta * nzta - nn;
        B = np - nzta * R;
      }
      double D = B * B + (pp - R2) * A;
      if (D > 0) {
        double sD = sqrt(D), iA = 1 / A;
        double t0 = (B + sD) * iA, t1 = (B - sD) * iA;
        if (hitside(t0, s.zmin, s.zmax)) tc.push_back(t0);
        if (hitside(t1, s.zmin, s.zmax)) tc.push_back(t1);
      }
    }
  }
 
  if (!ftwopi) {
    do { // side at phi0
      double d  = fn0x * p.x() + fn0y * p.y();
      double vn = fn0x * n.x() + fn0y * n.y();
      double t  = -d / vn;
      G4ThreeVector r = p + n * t;
      zr_t zr = {r.z(), fc0 * r.x() + fs0 * r.y()};
      if (vn != 0 && wn_poly(zr) == 2) tc.push_back(t);
    } while (0);
 
    do { // side at phi0+dphi
      double d  = fn1x * p.x() + fn1y * p.y();
      double vn = fn1x * n.x() + fn1y * n.y();
      double t  = -d / vn;
      G4ThreeVector r = p + n * t;
      zr_t zr = {r.z(), fc1 * r.x() + fs1 * r.y()};
      if (vn != 0 && wn_poly(zr) == 2) tc.push_back(t);
    } while (0);
  }
 
  sort(tc.begin(), tc.end());
  return tc;
}

mindist()

double mindist ( const zr_t &  r ) const

protected

minimal distance

Definition at line 962 of file BelleLathe.cc.

{
  double d = kInfinity;
  int i = 0, n = fcache.size();
  do {
    const cachezr_t& s = fcache[i];
    double dz = r.z - s.z, dr = r.r - s.r;
    double dot = s.dz * dz + s.dr * dr; // projection of the point on the segment
    if (dot <   0) {
      d = min(d, dz * dz + dr * dr); // distance to the first point of the segment
    } else if (dot <= s.s2) { // point should be within the segment
      double crs = s.dr * dz - s.dz * dr;
      d = min(d, crs * crs * s.is2);
    }
  } while (++i < n);
  d = sqrt(d);
  d = (wn_poly(r) == 2) ? -d : d;
  return d;
}

normal()

zr_t normal ( const zr_t &  r, double &  d2  ) const

protected

return normal

Definition at line 1026 of file BelleLathe.cc.

{
  double d = std::numeric_limits<double>::infinity(), t = 0;
  int iseg = -1;
  for (int i = 0, imax = fcache.size(); i < imax; i++) {
    const cachezr_t& s = fcache[i];
    double dz = r.z - s.z, dr = r.r - s.r;
    double dot = s.dz * dz + s.dr * dr; // projection of the point on the segment
    if (dot <   0) {
      double dist = dz * dz + dr * dr; // distance to the first point of the segment
      if (dist < d) { d = dist; t = dot * s.is2; iseg = i;}
    } else if (dot <= s.s2) { // point should be within the segment
      double crs = s.dr * dz - s.dz * dr;
      double dist = crs * crs * s.is2;
      if (dist < d) { d = dist; t = dot * s.is2; iseg = i;}
    }
  }
  d2 = d;
 
  auto getn = [this](int i)->zr_t{
    int imax = fcache.size();
    int i0 = i;
    if (i == -1) i0 = imax;
    const cachezr_t& s = fcache[i0];
    double is = sqrt(s.is2);
    return {s.dr * is, -s.dz * is};
  };
  return getn(iseg);
 
  if (t < 0.0) {
    const cachezr_t& s = fcache[iseg];
    zr_t dist = {r.z - s.z, r.r - s.r};
    double dist2 = dist.z * dist.z + dist.r * dist.r;
    if (dist2 > 1e-18) {
      double q = 1 / sqrt(dist2);
      if (wn_poly(r) == 2) q = -q;
      return {dist.z * q, dist.r * q};
    } else {
      zr_t n = getn(iseg), np = getn(iseg - 1);
      n.z += np.z; n.r += np.r;
      double n2 = n.z * n.z + n.r * n.r;
      double q = 1 / sqrt(n2);
      n.z *= q, n.r *= q;
      return n;
    }
  }
  return getn(iseg);
}

operator=()

BelleLathe & operator=

(

const BelleLathe &

rhs

)

assignment operator

Definition at line 305 of file BelleLathe.cc.

{
  // Check assignment to self
  if (this == &rhs)  { return *this; }
 
  // Copy base class data
  G4CSGSolid::operator=(rhs);
 
  // Copy data
  fcontour = rhs.fcontour;
  fcache = rhs.fcache;
  fz = rhs.fz;
  findx = rhs.findx;
  fseg = rhs.fseg;
  farea = rhs.farea;
  ftlist = rhs.ftlist;
  fphi = rhs.fphi;
  fdphi = rhs.fdphi;
  fs0 = rhs.fs0;
  fc0 = rhs.fc0;
  fs1 = rhs.fs1;
  fc1 = rhs.fc1;
  fn0x = rhs.fn0x;
  fn0y = rhs.fn0y;
  fn1x = rhs.fn1x;
  fn1y = rhs.fn1y;
  frmin = rhs.frmin;
  frmax = rhs.frmax;
  fzmin = rhs.fzmin;
  fzmax = rhs.fzmax;
  fgtpi = rhs.fgtpi;
  ftwopi = rhs.ftwopi;
  fshape = rhs.fshape;
  fsurf = rhs.fsurf;
  return *this;
}

StreamInfo()

std::ostream & StreamInfo

(

std::ostream &

os

)

const

Stream object contents to an output stream.

Definition at line 1822 of file BelleLathe.cc.

{
  G4int oldprc = os.precision(16);
  os << "-----------------------------------------------------------\n"
     << "    *** Dump for solid - " << GetName() << " ***\n"
     << "    ===================================================\n"
     << " Solid type: BelleLathe\n"
     << "    Contour: " << fcontour.size() << " sides, {z, r} points \n";
  for (int i = 0, imax = fcontour.size(); i < imax; i++) {
    os << fcontour[i] << ", ";
  }
  os << "\n";
  for (int i = 0, imax = fcontour.size(); i < imax; i++) {
    os << fcache[i].isconvex << ", ";
  }
  os << "\n";
  os << "phi0 = " << fphi << ", dphi = " << fdphi << ", Full Circle = " << (ftwopi ? "yes" : "no") << "\n";
  double xmin = fzmin - 0.05 * (fzmax - fzmin), xmax = fzmax + 0.05 * (fzmax - fzmin);
  double ymin = frmin - 0.05 * (frmax - frmin), ymax = frmax + 0.05 * (frmax - frmin);
  os << " BB: " << xmin << ", " << xmax << ", " << ymin << ", " << ymax << endl;
  os << "-----------------------------------------------------------\n";
  os.precision(oldprc);
 
  return os;
}

SurfaceNormal()

G4ThreeVector SurfaceNormal

(

const G4ThreeVector &

p

)

const

Calculate side nearest to p, and return normal.

Definition at line 1077 of file BelleLathe.cc.

{
  COUNTER(1);
 
  auto side = [this](const zr_t & r, double d, int iside) {
    double nx = (iside) ? fn1x : fn0x, ny = (iside) ? fn1y : fn0y;
    if (wn_poly(r) == 2) return G4ThreeVector(nx, ny, 0);
    double cphi = (iside) ? fc1 : fc0, sphi = (iside) ? fs1 : fc0;
 
    double d2; zr_t n = normal(r, d2);
    double x = cphi * n.r, y = sphi * n.r;
    double u = sqrt(d2);
    d2 += d * d;
    G4ThreeVector res;
    if (d2 > 0) {
      double q = 1 / sqrt(d2);
      double cpsi = u * q, spsi = d * q;
      res.set(x * cpsi - y * spsi, x * spsi + y * cpsi, n.z);
    }
    res.set(x, y, n.z);
    return res;
  };
 
  G4ThreeVector res;
  zr_t r = {p.z(), p.perp()};
  double d2; zr_t n = normal(r, d2);
  double d = sqrt(d2);
  double pt = hypot(p.x(), p.y());
 
  if (pt > 0) {
    double ir = n.r / pt;
    res = G4ThreeVector(ir * p.x(), ir * p.y(), n.z);
  } else
    res = G4ThreeVector(n.r, 0, n.z);
 
  if (!ftwopi) {
    double d0 = fn0x * p.x() + fn0y * p.y();
    double d1 = fn1x * p.x() + fn1y * p.y();
    zr_t r0 = {p.z(), fc0 * p.x() + fs0 * p.y()}; // projection on plane phi
    zr_t r1 = {p.z(), fc1 * p.x() + fs1 * p.y()}; // projection on plane phi+dphi
    if (fgtpi) {
      if (d0 > 0 && d1 > 0) { // outside sector
        if (d0 < d1) {
          res = side(r0, d0, 0); goto exit;
        } else {
          res = side(r1, -d1, 1); goto exit;
        }
      } else {// inside sector
        if (wn_poly(r) == 2) { // point p inside the solid
          if (abs(d0) < d && abs(d0) < abs(d1)) { res = G4ThreeVector(fn0x, fn0y, 0); goto exit;}
          if (abs(d1) < d && abs(d1) < abs(d0)) { res = G4ThreeVector(fn1x, fn1y, 0); goto exit;}
        }
      }
    } else {
      if (d0 > 0 || d1 > 0) { // outside sector
        if (d0 < 0) {
          res = side(r1, -d1, 1); goto exit;
        } else {
          res = side(r0, d0, 0); goto exit;
        }
      } else {
        if (wn_poly(r) == 2) { // point p inside the solid
          if (abs(d0) < d && abs(d0) < abs(d1)) { res = G4ThreeVector(fn0x, fn0y, 0); goto exit;}
          if (abs(d1) < d && abs(d1) < abs(d0)) { res = G4ThreeVector(fn1x, fn1y, 0); goto exit;}
        }
      }
    }
  }
exit:
#if COMPARE==1
  G4ThreeVector dd = fshape->SurfaceNormal(p);
  if ((res - dd).mag() > 1e-11) {
    int oldprec = cout.precision(16);
    EInside inside = fshape->Inside(p);
    cout << GetName() << " SurfaceNormal(p) " << p << " " << res << " " << dd << " " << res - dd << " " << inside << endl;
    cout.precision(oldprec);
    //    _exit(0);
  }
#endif
  MATCHOUT("BelleLathe::SurfaceNormal(p,n) " << p << " res= " << res);
  return res;
}

wn_poly()

int wn_poly ( const zr_t &  r ) const

protected

wn_poly

Definition at line 945 of file BelleLathe.cc.

{
  int wn = 0;
  vector<double>::const_iterator it = upper_bound(fz.begin(), fz.end(), r.z);
  //  cout<<r<<" "<<fz.size()<<" "<<it-fz.begin()<<endl;
  if (it != fz.begin() && it != fz.end()) {
    int k = it - fz.begin();
    for (int i = findx[k - 1]; i != findx[k]; i++) {
      const cachezr_t& s = fcache[fseg[i]];
      double dz = r.z - s.z, dr = r.r - s.r;
      double crs = s.dr * dz - s.dz * dr;
      wn -= (crs > 0) - (crs < 0);
    }
  }
  return wn;
}

Member Data Documentation

farea

std::vector<double> farea

mutableprivate

vector of area values

Definition at line 176 of file BelleLathe.h.

fc0

double fc0

private

fc0

Definition at line 182 of file BelleLathe.h.

fc1

double fc1

private

fc1

Definition at line 184 of file BelleLathe.h.

fcache

std::vector<cachezr_t> fcache

private

vector of cached zr structs

Definition at line 172 of file BelleLathe.h.

fcontour

std::vector<zr_t> fcontour

private

vector of zr structs

Definition at line 171 of file BelleLathe.h.

fdphi

double fdphi

private

finishing angle

Definition at line 180 of file BelleLathe.h.

fgtpi

bool fgtpi

private

greater than pi?

Definition at line 193 of file BelleLathe.h.

findx

std::vector<int> findx

private

vector of indices

Definition at line 174 of file BelleLathe.h.

fn0x

double fn0x

private

fn0x

Definition at line 185 of file BelleLathe.h.

fn0y

double fn0y

private

fn0y

Definition at line 186 of file BelleLathe.h.

fn1x

double fn1x

private

fn1x

Definition at line 187 of file BelleLathe.h.

fn1y

double fn1y

private

fn1y

Definition at line 188 of file BelleLathe.h.

fphi

double fphi

private

starting angle

Definition at line 179 of file BelleLathe.h.

frmax

double frmax

private

maximal r value

Definition at line 190 of file BelleLathe.h.

frmin

double frmin

private

minimal r value

Definition at line 189 of file BelleLathe.h.

fs0

double fs0

private

fs0

Definition at line 181 of file BelleLathe.h.

fs1

double fs1

private

fs1

Definition at line 183 of file BelleLathe.h.

fseg

std::vector<int> fseg

private

vector of segments

Definition at line 175 of file BelleLathe.h.

fshape

G4VSolid* fshape

private

shape

Definition at line 196 of file BelleLathe.h.

fsurf

std::vector<G4ThreeVector> fsurf

mutableprivate

vector of surfaces

Definition at line 197 of file BelleLathe.h.

ftlist

std::vector<triangle_t> ftlist

mutableprivate

vector of triangle structs

Definition at line 177 of file BelleLathe.h.

ftwopi

bool ftwopi

private

bound within +- 2pi?

Definition at line 194 of file BelleLathe.h.

fz

std::vector<double> fz

private

vector of z values

Definition at line 173 of file BelleLathe.h.

fzmax

double fzmax

private

maximal z value

Definition at line 192 of file BelleLathe.h.

fzmin

double fzmin

private

minimal z value

Definition at line 191 of file BelleLathe.h.

---

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

• ecl/geometry/include/BelleLathe.h
• ecl/geometry/src/BelleLathe.cc