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geant4/source/geometry/solids/specific/src/G4UPolyhedra.cc
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2017-12-08 12:52:30 +01:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * 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. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
// $Id:$
//
// Implementation of G4UPolycone wrapper class
// --------------------------------------------------------------------
#include "G4Polyhedra.hh"
#include "G4UPolyhedra.hh"
#if ( defined(G4GEOM_USE_USOLIDS) || defined(G4GEOM_USE_PARTIAL_USOLIDS) )
#include "G4GeomTools.hh"
#include "G4GeometryTolerance.hh"
#include "G4AffineTransform.hh"
#include "G4VPVParameterisation.hh"
#include "G4BoundingEnvelope.hh"
using namespace CLHEP;
////////////////////////////////////////////////////////////////////////
//
// Constructor (GEANT3 style parameters)
//
// GEANT3 PGON radii are specified in the distance to the norm of each face.
//
G4UPolyhedra::G4UPolyhedra(const G4String& name,
G4double phiStart,
G4double phiTotal,
G4int numSide,
G4int numZPlanes,
const G4double zPlane[],
const G4double rInner[],
const G4double rOuter[] )
: Base_t(name, phiStart, phiTotal, numSide,
numZPlanes, zPlane, rInner, rOuter)
{
fGenericPgon = false;
SetOriginalParameters();
wrStart = phiStart;
while (wrStart < 0)
{
wrStart += twopi;
}
wrDelta = phiTotal;
if (wrDelta <= 0 || wrDelta >= twopi*(1-DBL_EPSILON))
{
wrDelta = twopi;
}
wrNumSide = numSide;
G4double convertRad = 1./std::cos(0.5*wrDelta/wrNumSide);
rzcorners.resize(0);
for (G4int i=0; i<numZPlanes; ++i)
{
G4double z = zPlane[i];
G4double r = rOuter[i]*convertRad;
rzcorners.push_back(G4TwoVector(r,z));
}
for (G4int i=numZPlanes-1; i>=0; --i)
{
G4double z = zPlane[i];
G4double r = rInner[i]*convertRad;
rzcorners.push_back(G4TwoVector(r,z));
}
std::vector<G4int> iout;
G4GeomTools::RemoveRedundantVertices(rzcorners,iout,2*kCarTolerance);
}
////////////////////////////////////////////////////////////////////////
//
// Constructor (generic parameters)
//
G4UPolyhedra::G4UPolyhedra(const G4String& name,
G4double phiStart,
G4double phiTotal,
G4int numSide,
G4int numRZ,
const G4double r[],
const G4double z[] )
: Base_t(name, phiStart, phiTotal, numSide, numRZ, r, z)
{
fGenericPgon = true;
SetOriginalParameters();
wrStart = phiStart;
while (wrStart < 0)
{
wrStart += twopi;
}
wrDelta = phiTotal;
if (wrDelta <= 0 || wrDelta >= twopi*(1-DBL_EPSILON))
{
wrDelta = twopi;
}
wrNumSide = numSide;
G4double convertRad = 1./std::cos(0.5*wrDelta/wrNumSide);
rzcorners.resize(0);
for (G4int i=0; i<numRZ; ++i)
{
rzcorners.push_back(G4TwoVector(r[i]*convertRad,z[i]));
}
std::vector<G4int> iout;
G4GeomTools::RemoveRedundantVertices(rzcorners,iout,2*kCarTolerance);
}
////////////////////////////////////////////////////////////////////////
//
// Fake default constructor - sets only member data and allocates memory
// for usage restricted to object persistency.
//
G4UPolyhedra::G4UPolyhedra( __void__& a )
: Base_t(a)
{
}
////////////////////////////////////////////////////////////////////////
//
// Destructor
//
G4UPolyhedra::~G4UPolyhedra()
{
}
////////////////////////////////////////////////////////////////////////
//
// Copy constructor
//
G4UPolyhedra::G4UPolyhedra( const G4UPolyhedra &source )
: Base_t( source )
{
fGenericPgon = source.fGenericPgon;
fOriginalParameters = source.fOriginalParameters;
wrStart = source.wrStart;
wrDelta = source.wrDelta;
wrNumSide = source.wrNumSide;
rzcorners = source.rzcorners;
}
////////////////////////////////////////////////////////////////////////
//
// Assignment operator
//
G4UPolyhedra& G4UPolyhedra::operator=( const G4UPolyhedra &source )
{
if (this == &source) return *this;
Base_t::operator=( source );
fGenericPgon = source.fGenericPgon;
fOriginalParameters = source.fOriginalParameters;
wrStart = source.wrStart;
wrDelta = source.wrDelta;
wrNumSide = source.wrNumSide;
rzcorners = source.rzcorners;
return *this;
}
////////////////////////////////////////////////////////////////////////
//
// Accessors & modifiers
//
G4int G4UPolyhedra::GetNumSide() const
{
return wrNumSide;
}
G4double G4UPolyhedra::GetStartPhi() const
{
return wrStart;
}
G4double G4UPolyhedra::GetEndPhi() const
{
return (wrStart + wrDelta);
}
G4double G4UPolyhedra::GetSinStartPhi() const
{
G4double phi = GetStartPhi();
return std::sin(phi);
}
G4double G4UPolyhedra::GetCosStartPhi() const
{
G4double phi = GetStartPhi();
return std::cos(phi);
}
G4double G4UPolyhedra::GetSinEndPhi() const
{
G4double phi = GetEndPhi();
return std::sin(phi);
}
G4double G4UPolyhedra::GetCosEndPhi() const
{
G4double phi = GetEndPhi();
return std::cos(phi);
}
G4bool G4UPolyhedra::IsOpen() const
{
return (wrDelta < twopi);
}
G4bool G4UPolyhedra::IsGeneric() const
{
return fGenericPgon;
}
G4int G4UPolyhedra::GetNumRZCorner() const
{
return rzcorners.size();
}
G4PolyhedraSideRZ G4UPolyhedra::GetCorner(G4int index) const
{
G4TwoVector rz = rzcorners.at(index);
G4PolyhedraSideRZ psiderz = { rz.x(), rz.y() };
return psiderz;
}
G4PolyhedraHistorical* G4UPolyhedra::GetOriginalParameters() const
{
return new G4PolyhedraHistorical(fOriginalParameters);
}
void G4UPolyhedra::SetOriginalParameters()
{
G4int numPlanes = GetZSegmentCount() + 1;
delete [] fOriginalParameters.Z_values;
delete [] fOriginalParameters.Rmin;
delete [] fOriginalParameters.Rmax;
fOriginalParameters.Z_values = new G4double[numPlanes];
fOriginalParameters.Rmin = new G4double[numPlanes];
fOriginalParameters.Rmax = new G4double[numPlanes];
for (G4int j=0; j<numPlanes; ++j)
{
fOriginalParameters.Z_values[j] = GetZPlanes()[j];
fOriginalParameters.Rmax[j] = GetRMax()[j];
fOriginalParameters.Rmin[j] = GetRMin()[j];
}
fOriginalParameters.Start_angle = GetPhiStart();
fOriginalParameters.Opening_angle = GetPhiDelta();
fOriginalParameters.Num_z_planes = numPlanes;
fOriginalParameters.numSide = GetSideCount();
}
void G4UPolyhedra::SetOriginalParameters(G4PolyhedraHistorical* pars)
{
fOriginalParameters = *pars;
fRebuildPolyhedron = true;
Reset();
}
G4bool G4UPolyhedra::Reset()
{
if (fGenericPgon)
{
std::ostringstream message;
message << "Solid " << GetName() << " built using generic construct."
<< G4endl << "Not applicable to the generic construct !";
G4Exception("G4UPolyhedra::Reset()", "GeomSolids1001",
JustWarning, message, "Parameters NOT resetted.");
return true; // error code set
}
//
// Rebuild polyhedra based on original parameters
//
wrStart = fOriginalParameters.Start_angle;
while (wrStart < 0)
{
wrStart += twopi;
}
wrDelta = fOriginalParameters.Opening_angle;
if (wrDelta <= 0 || wrDelta >= twopi*(1-DBL_EPSILON))
{
wrDelta = twopi;
}
wrNumSide = fOriginalParameters.numSide;
G4double convertRad = 1./std::cos(0.5*wrDelta/wrNumSide);
rzcorners.resize(0);
for (G4int i=0; i<fOriginalParameters.Num_z_planes; ++i)
{
G4double z = fOriginalParameters.Z_values[i];
G4double r = fOriginalParameters.Rmax[i]*convertRad;
rzcorners.push_back(G4TwoVector(r,z));
}
for (G4int i=fOriginalParameters.Num_z_planes-1; i>=0; --i)
{
G4double z = fOriginalParameters.Z_values[i];
G4double r = fOriginalParameters.Rmin[i]*convertRad;
rzcorners.push_back(G4TwoVector(r,z));
}
std::vector<G4int> iout;
G4GeomTools::RemoveRedundantVertices(rzcorners,iout,2*kCarTolerance);
return false; // error code unset
}
////////////////////////////////////////////////////////////////////////
//
// Dispatch to parameterisation for replication mechanism dimension
// computation & modification.
//
void G4UPolyhedra::ComputeDimensions(G4VPVParameterisation* p,
const G4int n,
const G4VPhysicalVolume* pRep)
{
p->ComputeDimensions(*(G4Polyhedra*)this,n,pRep);
}
//////////////////////////////////////////////////////////////////////////
//
// Make a clone of the object
G4VSolid* G4UPolyhedra::Clone() const
{
return new G4UPolyhedra(*this);
}
//////////////////////////////////////////////////////////////////////////
//
// Get bounding box
void G4UPolyhedra::BoundingLimits(G4ThreeVector& pMin,
G4ThreeVector& pMax) const
{
static G4bool checkBBox = true;
static G4bool checkPhi = true;
G4double rmin = kInfinity, rmax = -kInfinity;
G4double zmin = kInfinity, zmax = -kInfinity;
for (G4int i=0; i<GetNumRZCorner(); ++i)
{
G4PolyhedraSideRZ corner = GetCorner(i);
if (corner.r < rmin) rmin = corner.r;
if (corner.r > rmax) rmax = corner.r;
if (corner.z < zmin) zmin = corner.z;
if (corner.z > zmax) zmax = corner.z;
}
G4double sphi = GetStartPhi();
G4double ephi = GetEndPhi();
G4double dphi = IsOpen() ? ephi-sphi : twopi;
G4int ksteps = GetNumSide();
G4double astep = dphi/ksteps;
G4double sinStep = std::sin(astep);
G4double cosStep = std::cos(astep);
G4double sinCur = GetSinStartPhi();
G4double cosCur = GetCosStartPhi();
if (!IsOpen()) rmin = 0;
G4double xmin = rmin*cosCur, xmax = xmin;
G4double ymin = rmin*sinCur, ymax = ymin;
for (G4int k=0; k<ksteps+1; ++k)
{
G4double x = rmax*cosCur;
if (x < xmin) xmin = x;
if (x > xmax) xmax = x;
G4double y = rmax*sinCur;
if (y < ymin) ymin = y;
if (y > ymax) ymax = y;
if (rmin > 0)
{
G4double xx = rmin*cosCur;
if (xx < xmin) xmin = xx;
if (xx > xmax) xmax = xx;
G4double yy = rmin*sinCur;
if (yy < ymin) ymin = yy;
if (yy > ymax) ymax = yy;
}
G4double sinTmp = sinCur;
sinCur = sinCur*cosStep + cosCur*sinStep;
cosCur = cosCur*cosStep - sinTmp*sinStep;
}
pMin.set(xmin,ymin,zmin);
pMax.set(xmax,ymax,zmax);
// Check correctness of the bounding box
//
if (pMin.x() >= pMax.x() || pMin.y() >= pMax.y() || pMin.z() >= pMax.z())
{
std::ostringstream message;
message << "Bad bounding box (min >= max) for solid: "
<< GetName() << " !"
<< "\npMin = " << pMin
<< "\npMax = " << pMax;
G4Exception("G4UPolyhedra::BoundingLimits()", "GeomMgt0001",
JustWarning, message);
StreamInfo(G4cout);
}
// Check consistency of bounding boxes
//
if (checkBBox)
{
U3Vector vmin, vmax;
Extent(vmin,vmax);
if (std::abs(pMin.x()-vmin.x()) > kCarTolerance ||
std::abs(pMin.y()-vmin.y()) > kCarTolerance ||
std::abs(pMin.z()-vmin.z()) > kCarTolerance ||
std::abs(pMax.x()-vmax.x()) > kCarTolerance ||
std::abs(pMax.y()-vmax.y()) > kCarTolerance ||
std::abs(pMax.z()-vmax.z()) > kCarTolerance)
{
std::ostringstream message;
message << "Inconsistency in bounding boxes for solid: "
<< GetName() << " !"
<< "\nBBox min: wrapper = " << pMin << " solid = " << vmin
<< "\nBBox max: wrapper = " << pMax << " solid = " << vmax;
G4Exception("G4UPolyhedra::BoundingLimits()", "GeomMgt0001",
JustWarning, message);
checkBBox = false;
}
}
// Check consistency of angles
//
if (checkPhi)
{
if (GetStartPhi() != GetPhiStart() ||
GetEndPhi() != GetPhiEnd() ||
GetNumSide() != GetSideCount() ||
IsOpen() != (Base_t::GetPhiDelta() < twopi))
{
std::ostringstream message;
message << "Inconsistency in Phi angles or # of sides for solid: "
<< GetName() << " !"
<< "\nPhi start : wrapper = " << GetStartPhi()
<< " solid = " << GetPhiStart()
<< "\nPhi end : wrapper = " << GetEndPhi()
<< " solid = " << GetPhiEnd()
<< "\nPhi # sides: wrapper = " << GetNumSide()
<< " solid = " << GetSideCount()
<< "\nPhi is open: wrapper = " << (IsOpen() ? "true" : "false")
<< " solid = "
<< ((Base_t::GetPhiDelta() < twopi) ? "true" : "false");
G4Exception("G4UPolyhedra::BoundingLimits()", "GeomMgt0001",
JustWarning, message);
checkPhi = false;
}
}
}
//////////////////////////////////////////////////////////////////////////
//
// Calculate extent under transform and specified limit
G4bool
G4UPolyhedra::CalculateExtent(const EAxis pAxis,
const G4VoxelLimits& pVoxelLimit,
const G4AffineTransform& pTransform,
G4double& pMin, G4double& pMax) const
{
G4ThreeVector bmin, bmax;
G4bool exist;
// Check bounding box (bbox)
//
BoundingLimits(bmin,bmax);
G4BoundingEnvelope bbox(bmin,bmax);
#ifdef G4BBOX_EXTENT
if (true) return bbox.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
#endif
if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVoxelLimit,pTransform,pMin,pMax))
{
return exist = (pMin < pMax) ? true : false;
}
// To find the extent, RZ contour of the polycone is subdivided
// in triangles. The extent is calculated as cumulative extent of
// all sub-polycones formed by rotation of triangles around Z
//
G4TwoVectorList contourRZ;
G4TwoVectorList triangles;
std::vector<G4int> iout;
G4double eminlim = pVoxelLimit.GetMinExtent(pAxis);
G4double emaxlim = pVoxelLimit.GetMaxExtent(pAxis);
// get RZ contour, ensure anticlockwise order of corners
for (G4int i=0; i<GetNumRZCorner(); ++i)
{
G4PolyhedraSideRZ corner = GetCorner(i);
contourRZ.push_back(G4TwoVector(corner.r,corner.z));
}
G4GeomTools::RemoveRedundantVertices(contourRZ,iout,2*kCarTolerance);
G4double area = G4GeomTools::PolygonArea(contourRZ);
if (area < 0.) std::reverse(contourRZ.begin(),contourRZ.end());
// triangulate RZ countour
if (!G4GeomTools::TriangulatePolygon(contourRZ,triangles))
{
std::ostringstream message;
message << "Triangulation of RZ contour has failed for solid: "
<< GetName() << " !"
<< "\nExtent has been calculated using boundary box";
G4Exception("G4UPolyhedra::CalculateExtent()",
"GeomMgt1002",JustWarning,message);
return bbox.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
}
// set trigonometric values
G4double sphi = GetStartPhi();
G4double ephi = GetEndPhi();
G4double dphi = IsOpen() ? ephi-sphi : twopi;
G4int ksteps = GetNumSide();
G4double astep = dphi/ksteps;
G4double sinStep = std::sin(astep);
G4double cosStep = std::cos(astep);
G4double sinStart = GetSinStartPhi();
G4double cosStart = GetCosStartPhi();
// allocate vector lists
std::vector<const G4ThreeVectorList *> polygons;
polygons.resize(ksteps+1);
for (G4int k=0; k<ksteps+1; ++k) {
polygons[k] = new G4ThreeVectorList(3);
}
// main loop along triangles
pMin = kInfinity;
pMax = -kInfinity;
G4int ntria = triangles.size()/3;
for (G4int i=0; i<ntria; ++i)
{
G4double sinCur = sinStart;
G4double cosCur = cosStart;
G4int i3 = i*3;
for (G4int k=0; k<ksteps+1; ++k) // rotate triangle
{
G4ThreeVectorList* ptr = const_cast<G4ThreeVectorList*>(polygons[k]);
G4ThreeVectorList::iterator iter = ptr->begin();
iter->set(triangles[i3+0].x()*cosCur,
triangles[i3+0].x()*sinCur,
triangles[i3+0].y());
iter++;
iter->set(triangles[i3+1].x()*cosCur,
triangles[i3+1].x()*sinCur,
triangles[i3+1].y());
iter++;
iter->set(triangles[i3+2].x()*cosCur,
triangles[i3+2].x()*sinCur,
triangles[i3+2].y());
G4double sinTmp = sinCur;
sinCur = sinCur*cosStep + cosCur*sinStep;
cosCur = cosCur*cosStep - sinTmp*sinStep;
}
// set sub-envelope and adjust extent
G4double emin,emax;
G4BoundingEnvelope benv(polygons);
if (!benv.CalculateExtent(pAxis,pVoxelLimit,pTransform,emin,emax)) continue;
if (emin < pMin) pMin = emin;
if (emax > pMax) pMax = emax;
if (eminlim > pMin && emaxlim < pMax) break; // max possible extent
}
// free memory
for (G4int k=0; k<ksteps+1; ++k) { delete polygons[k]; polygons[k]=0;}
return (pMin < pMax);
}
////////////////////////////////////////////////////////////////////////
//
// CreatePolyhedron
//
G4Polyhedron* G4UPolyhedra::CreatePolyhedron() const
{
if (!IsGeneric())
{
return new G4PolyhedronPgon( fOriginalParameters.Start_angle,
fOriginalParameters.Opening_angle,
fOriginalParameters.numSide,
fOriginalParameters.Num_z_planes,
fOriginalParameters.Z_values,
fOriginalParameters.Rmin,
fOriginalParameters.Rmax);
}
else
{
// The following code prepares for:
// HepPolyhedron::createPolyhedron(int Nnodes, int Nfaces,
// const double xyz[][3],
// const int faces_vec[][4])
// Here is an extract from the header file HepPolyhedron.h:
/**
* Creates user defined polyhedron.
* This function allows to the user to define arbitrary polyhedron.
* The faces of the polyhedron should be either triangles or planar
* quadrilateral. Nodes of a face are defined by indexes pointing to
* the elements in the xyz array. Numeration of the elements in the
* array starts from 1 (like in fortran). The indexes can be positive
* or negative. Negative sign means that the corresponding edge is
* invisible. The normal of the face should be directed to exterior
* of the polyhedron.
*
* @param Nnodes number of nodes
* @param Nfaces number of faces
* @param xyz nodes
* @param faces_vec faces (quadrilaterals or triangles)
* @return status of the operation - is non-zero in case of problem
*/
G4int nNodes;
G4int nFaces;
typedef G4double double3[3];
double3* xyz;
typedef G4int int4[4];
int4* faces_vec;
if (IsOpen())
{
// Triangulate open ends. Simple ear-chopping algorithm...
// I'm not sure how robust this algorithm is (J.Allison).
//
std::vector<G4bool> chopped(GetNumRZCorner(), false);
std::vector<G4int*> triQuads;
G4int remaining = GetNumRZCorner();
G4int iStarter = 0;
while (remaining >= 3) // Loop checking, 13.08.2015, G.Cosmo
{
// Find unchopped corners...
//
G4int A = -1, B = -1, C = -1;
G4int iStepper = iStarter;
do // Loop checking, 13.08.2015, G.Cosmo
{
if (A < 0) { A = iStepper; }
else if (B < 0) { B = iStepper; }
else if (C < 0) { C = iStepper; }
do // Loop checking, 13.08.2015, G.Cosmo
{
if (++iStepper >= GetNumRZCorner()) iStepper = 0;
}
while (chopped[iStepper]);
}
while (C < 0 && iStepper != iStarter);
// Check triangle at B is pointing outward (an "ear").
// Sign of z cross product determines...
G4double BAr = GetCorner(A).r - GetCorner(B).r;
G4double BAz = GetCorner(A).z - GetCorner(B).z;
G4double BCr = GetCorner(C).r - GetCorner(B).r;
G4double BCz = GetCorner(C).z - GetCorner(B).z;
if (BAr * BCz - BAz * BCr < kCarTolerance)
{
G4int* tq = new G4int[3];
tq[0] = A + 1;
tq[1] = B + 1;
tq[2] = C + 1;
triQuads.push_back(tq);
chopped[B] = true;
--remaining;
}
else
{
do // Loop checking, 13.08.2015, G.Cosmo
{
if (++iStarter >= GetNumRZCorner()) { iStarter = 0; }
}
while (chopped[iStarter]);
}
}
// Transfer to faces...
G4int numSide=GetNumSide();
nNodes = (numSide + 1) * GetNumRZCorner();
nFaces = numSide * GetNumRZCorner() + 2 * triQuads.size();
faces_vec = new int4[nFaces];
G4int iface = 0;
G4int addition = GetNumRZCorner() * numSide;
G4int d = GetNumRZCorner() - 1;
for (G4int iEnd = 0; iEnd < 2; ++iEnd)
{
for (size_t i = 0; i < triQuads.size(); ++i)
{
// Negative for soft/auxiliary/normally invisible edges...
//
G4int a, b, c;
if (iEnd == 0)
{
a = triQuads[i][0];
b = triQuads[i][1];
c = triQuads[i][2];
}
else
{
a = triQuads[i][0] + addition;
b = triQuads[i][2] + addition;
c = triQuads[i][1] + addition;
}
G4int ab = std::abs(b - a);
G4int bc = std::abs(c - b);
G4int ca = std::abs(a - c);
faces_vec[iface][0] = (ab == 1 || ab == d)? a: -a;
faces_vec[iface][1] = (bc == 1 || bc == d)? b: -b;
faces_vec[iface][2] = (ca == 1 || ca == d)? c: -c;
faces_vec[iface][3] = 0;
++iface;
}
}
// Continue with sides...
xyz = new double3[nNodes];
const G4double dPhi = (GetEndPhi() - GetStartPhi()) / numSide;
G4double phi = GetStartPhi();
G4int ixyz = 0;
for (G4int iSide = 0; iSide < numSide; ++iSide)
{
for (G4int iCorner = 0; iCorner < GetNumRZCorner(); ++iCorner)
{
xyz[ixyz][0] = GetCorner(iCorner).r * std::cos(phi);
xyz[ixyz][1] = GetCorner(iCorner).r * std::sin(phi);
xyz[ixyz][2] = GetCorner(iCorner).z;
if (iCorner < GetNumRZCorner() - 1)
{
faces_vec[iface][0] = ixyz + 1;
faces_vec[iface][1] = ixyz + GetNumRZCorner() + 1;
faces_vec[iface][2] = ixyz + GetNumRZCorner() + 2;
faces_vec[iface][3] = ixyz + 2;
}
else
{
faces_vec[iface][0] = ixyz + 1;
faces_vec[iface][1] = ixyz + GetNumRZCorner() + 1;
faces_vec[iface][2] = ixyz + 2;
faces_vec[iface][3] = ixyz - GetNumRZCorner() + 2;
}
++iface;
++ixyz;
}
phi += dPhi;
}
// Last GetCorner...
for (G4int iCorner = 0; iCorner < GetNumRZCorner(); ++iCorner)
{
xyz[ixyz][0] = GetCorner(iCorner).r * std::cos(phi);
xyz[ixyz][1] = GetCorner(iCorner).r * std::sin(phi);
xyz[ixyz][2] = GetCorner(iCorner).z;
++ixyz;
}
}
else // !phiIsOpen - i.e., a complete 360 degrees.
{
nNodes = GetNumSide() * GetNumRZCorner();
nFaces = GetNumSide() * GetNumRZCorner();;
xyz = new double3[nNodes];
faces_vec = new int4[nFaces];
// const G4double dPhi = (endPhi - startPhi) / numSide;
const G4double dPhi = twopi / GetNumSide();
// !phiIsOpen endPhi-startPhi = 360 degrees.
G4double phi = GetStartPhi();
G4int ixyz = 0, iface = 0;
for (G4int iSide = 0; iSide < GetNumSide(); ++iSide)
{
for (G4int iCorner = 0; iCorner < GetNumRZCorner(); ++iCorner)
{
xyz[ixyz][0] = GetCorner(iCorner).r * std::cos(phi);
xyz[ixyz][1] = GetCorner(iCorner).r * std::sin(phi);
xyz[ixyz][2] = GetCorner(iCorner).z;
if (iSide < GetNumSide() - 1)
{
if (iCorner < GetNumRZCorner() - 1)
{
faces_vec[iface][0] = ixyz + 1;
faces_vec[iface][1] = ixyz + GetNumRZCorner() + 1;
faces_vec[iface][2] = ixyz + GetNumRZCorner() + 2;
faces_vec[iface][3] = ixyz + 2;
}
else
{
faces_vec[iface][0] = ixyz + 1;
faces_vec[iface][1] = ixyz + GetNumRZCorner() + 1;
faces_vec[iface][2] = ixyz + 2;
faces_vec[iface][3] = ixyz - GetNumRZCorner() + 2;
}
}
else // Last side joins ends...
{
if (iCorner < GetNumRZCorner() - 1)
{
faces_vec[iface][0] = ixyz + 1;
faces_vec[iface][1] = ixyz + GetNumRZCorner() - nFaces + 1;
faces_vec[iface][2] = ixyz + GetNumRZCorner() - nFaces + 2;
faces_vec[iface][3] = ixyz + 2;
}
else
{
faces_vec[iface][0] = ixyz + 1;
faces_vec[iface][1] = ixyz - nFaces + GetNumRZCorner() + 1;
faces_vec[iface][2] = ixyz - nFaces + 2;
faces_vec[iface][3] = ixyz - GetNumRZCorner() + 2;
}
}
++ixyz;
++iface;
}
phi += dPhi;
}
}
G4Polyhedron* polyhedron = new G4Polyhedron;
G4int prob = polyhedron->createPolyhedron(nNodes, nFaces, xyz, faces_vec);
delete [] faces_vec;
delete [] xyz;
if (prob)
{
std::ostringstream message;
message << "Problem creating G4Polyhedron for: " << GetName();
G4Exception("G4Polyhedra::CreatePolyhedron()", "GeomSolids1002",
JustWarning, message);
delete polyhedron;
return 0;
}
else
{
return polyhedron;
}
}
}
#endif // G4GEOM_USE_USOLIDS