Geant4  10.00.p01
G4TwistTubsFlatSide.cc
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27 // $Id: G4TwistTubsFlatSide.cc 72937 2013-08-14 13:20:38Z gcosmo $
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29 //
30 // --------------------------------------------------------------------
31 // GEANT 4 class source file
32 //
33 //
34 // G4TwistTubsFlatSide.cc
35 //
36 // Author:
37 // 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp)
38 //
39 // History:
40 // 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4
41 // from original version in Jupiter-2.5.02 application.
42 // --------------------------------------------------------------------
43 
44 #include "G4TwistTubsFlatSide.hh"
45 #include "G4GeometryTolerance.hh"
46 
47 //=====================================================================
48 //* constructors ------------------------------------------------------
49 
51  const G4RotationMatrix &rot,
52  const G4ThreeVector &tlate,
53  const G4ThreeVector &n,
54  const EAxis axis0 ,
55  const EAxis axis1 ,
56  G4double axis0min,
57  G4double axis1min,
58  G4double axis0max,
59  G4double axis1max )
60  : G4VTwistSurface(name, rot, tlate, 0, axis0, axis1,
61  axis0min, axis1min, axis0max, axis1max)
62 {
63  if (axis0 == kPhi && axis1 == kRho) {
64  G4Exception("G4TwistTubsFlatSide::G4TwistTubsFlatSide()",
65  "GeomSolids0002", FatalErrorInArgument,
66  "Should swap axis0 and axis1!");
67  }
68 
69  G4ThreeVector normal = rot.inverse()*n;
70  fCurrentNormal.normal = normal.unit(); // in local coordinate system
71  fIsValidNorm = true;
72 
73  SetCorners();
74  SetBoundaries();
75 
76  fSurfaceArea = 1 ; // not yet implemented. This is NOT a problem for tracking
77 
78 }
79 
80 
81 
83  G4double EndInnerRadius[2],
84  G4double EndOuterRadius[2],
85  G4double DPhi,
86  G4double EndPhi[2],
87  G4double EndZ[2],
88  G4int handedness )
89  : G4VTwistSurface(name)
90 {
91  fHandedness = handedness; // +z = +ve, -z = -ve
92  fAxis[0] = kRho; // in local coordinate system
93  fAxis[1] = kPhi;
94  G4int i = (handedness < 0 ? 0 : 1);
95  fAxisMin[0] = EndInnerRadius[i]; // Inner-hype radius at z=0
96  fAxisMax[0] = EndOuterRadius[i]; // Outer-hype radius at z=0
97  fAxisMin[1] = -0.5*DPhi;
98  fAxisMax[1] = -fAxisMin[1];
99  fCurrentNormal.normal.set(0, 0, (fHandedness < 0 ? -1 : 1));
100  // Unit vector, in local coordinate system
101  fRot.rotateZ(EndPhi[i]);
102  fTrans.set(0, 0, EndZ[i]);
103  fIsValidNorm = true;
104 
105  SetCorners();
106  SetBoundaries();
107 
108  fSurfaceArea = 0.5*DPhi * (EndOuterRadius[i]*EndOuterRadius[i]
109  - EndInnerRadius[i]*EndInnerRadius[i] ) ;
110 
111 }
112 
113 
114 //=====================================================================
115 //* Fake default constructor ------------------------------------------
116 
118  : G4VTwistSurface(a), fSurfaceArea(0.)
119 {
120 }
121 
122 
123 //=====================================================================
124 //* destructor --------------------------------------------------------
125 
127 {
128 }
129 
130 //=====================================================================
131 //* GetNormal ---------------------------------------------------------
132 
134  G4bool isGlobal)
135 {
136  if (isGlobal) {
138  } else {
139  return fCurrentNormal.normal;
140  }
141 }
142 
143 //=====================================================================
144 //* DistanceToSurface(p, v) -------------------------------------------
145 
147  const G4ThreeVector &gv,
148  G4ThreeVector gxx[],
149  G4double distance[],
150  G4int areacode[],
151  G4bool isvalid[],
152  EValidate validate)
153 {
154  fCurStatWithV.ResetfDone(validate, &gp, &gv);
155 
156  if (fCurStatWithV.IsDone()) {
157  G4int i;
158  for (i=0; i<fCurStatWithV.GetNXX(); i++) {
159  gxx[i] = fCurStatWithV.GetXX(i);
160  distance[i] = fCurStatWithV.GetDistance(i);
161  areacode[i] = fCurStatWithV.GetAreacode(i);
162  isvalid[i] = fCurStatWithV.IsValid(i);
163  }
164  return fCurStatWithV.GetNXX();
165  } else {
166  // initialize
167  G4int i;
168  for (i=0; i<2; i++) {
169  distance[i] = kInfinity;
170  areacode[i] = sOutside;
171  isvalid[i] = false;
172  gxx[i].set(kInfinity, kInfinity, kInfinity);
173  }
174  }
175 
178 
179  //
180  // special case!
181  // if p is on surface, distance = 0.
182  //
183 
184  if (std::fabs(p.z()) == 0.) { // if p is on the plane
185  distance[0] = 0;
186  G4ThreeVector xx = p;
187  gxx[0] = ComputeGlobalPoint(xx);
188 
189  if (validate == kValidateWithTol) {
190  areacode[0] = GetAreaCode(xx);
191  if (!IsOutside(areacode[0])) {
192  isvalid[0] = true;
193  }
194  } else if (validate == kValidateWithoutTol) {
195  areacode[0] = GetAreaCode(xx, false);
196  if (IsInside(areacode[0])) {
197  isvalid[0] = true;
198  }
199  } else { // kDontValidate
200  areacode[0] = sInside;
201  isvalid[0] = true;
202  }
203 
204  return 1;
205  }
206  //
207  // special case end
208  //
209 
210  if (v.z() == 0) {
211 
212  fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
213  isvalid[0], 0, validate, &gp, &gv);
214  return 0;
215  }
216 
217  distance[0] = - (p.z() / v.z());
218 
219  G4ThreeVector xx = p + distance[0]*v;
220  gxx[0] = ComputeGlobalPoint(xx);
221 
222  if (validate == kValidateWithTol) {
223  areacode[0] = GetAreaCode(xx);
224  if (!IsOutside(areacode[0])) {
225  if (distance[0] >= 0) isvalid[0] = true;
226  }
227  } else if (validate == kValidateWithoutTol) {
228  areacode[0] = GetAreaCode(xx, false);
229  if (IsInside(areacode[0])) {
230  if (distance[0] >= 0) isvalid[0] = true;
231  }
232  } else { // kDontValidate
233  areacode[0] = sInside;
234  if (distance[0] >= 0) isvalid[0] = true;
235  }
236 
237  fCurStatWithV.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
238  isvalid[0], 1, validate, &gp, &gv);
239 
240 #ifdef G4TWISTDEBUG
241  G4cerr << "ERROR - G4TwistTubsFlatSide::DistanceToSurface(p,v)" << G4endl;
242  G4cerr << " Name : " << GetName() << G4endl;
243  G4cerr << " xx : " << xx << G4endl;
244  G4cerr << " gxx[0] : " << gxx[0] << G4endl;
245  G4cerr << " dist[0] : " << distance[0] << G4endl;
246  G4cerr << " areacode[0] : " << areacode[0] << G4endl;
247  G4cerr << " isvalid[0] : " << isvalid[0] << G4endl;
248 #endif
249  return 1;
250 }
251 
252 //=====================================================================
253 //* DistanceToSurface(p) ----------------------------------------------
254 
256  G4ThreeVector gxx[],
257  G4double distance[],
258  G4int areacode[])
259 {
260  // Calculate distance to plane in local coordinate,
261  // then return distance and global intersection points.
262  //
263 
265 
266  if (fCurStat.IsDone()) {
267  G4int i;
268  for (i=0; i<fCurStat.GetNXX(); i++) {
269  gxx[i] = fCurStat.GetXX(i);
270  distance[i] = fCurStat.GetDistance(i);
271  areacode[i] = fCurStat.GetAreacode(i);
272  }
273  return fCurStat.GetNXX();
274  } else {
275  // initialize
276  G4int i;
277  for (i=0; i<2; i++) {
278  distance[i] = kInfinity;
279  areacode[i] = sOutside;
280  gxx[i].set(kInfinity, kInfinity, kInfinity);
281  }
282  }
283 
285  G4ThreeVector xx;
286 
287  // The plane is placed on origin with making its normal
288  // parallel to z-axis.
289  if (std::fabs(p.z()) <= 0.5 * kCarTolerance) { // if p is on the plane, return 1
290  distance[0] = 0;
291  xx = p;
292  } else {
293  distance[0] = std::fabs(p.z());
294  xx.set(p.x(), p.y(), 0);
295  }
296 
297  gxx[0] = ComputeGlobalPoint(xx);
298  areacode[0] = sInside;
299  G4bool isvalid = true;
300  fCurStat.SetCurrentStatus(0, gxx[0], distance[0], areacode[0],
301  isvalid, 1, kDontValidate, &gp);
302  return 1;
303 
304 }
305 
306 //=====================================================================
307 //* GetAreaCode -------------------------------------------------------
308 
310  G4bool withTol)
311 {
312  const G4double rtol
314 
315  G4int areacode = sInside;
316 
317  if (fAxis[0] == kRho && fAxis[1] == kPhi) {
318  G4int rhoaxis = 0;
319  // G4int phiaxis = 0;
320 
321  G4ThreeVector dphimin; // direction of phi-minimum boundary
322  G4ThreeVector dphimax; // direction of phi-maximum boundary
323  dphimin = GetCorner(sC0Max1Min);
324  dphimax = GetCorner(sC0Max1Max);
325 
326  if (withTol) {
327 
328  G4bool isoutside = false;
329 
330  // test boundary of rho-axis
331 
332  if (xx.getRho() <= fAxisMin[rhoaxis] + rtol) {
333 
334  areacode |= (sAxis0 & (sAxisRho | sAxisMin)) | sBoundary; // rho-min
335  if (xx.getRho() < fAxisMin[rhoaxis] - rtol) isoutside = true;
336 
337  } else if (xx.getRho() >= fAxisMax[rhoaxis] - rtol) {
338 
339  areacode |= (sAxis0 & (sAxisRho | sAxisMax)) | sBoundary; // rho-max
340  if (xx.getRho() > fAxisMax[rhoaxis] + rtol) isoutside = true;
341 
342  }
343 
344  // test boundary of phi-axis
345 
346  if (AmIOnLeftSide(xx, dphimin) >= 0) { // xx is on dphimin
347 
348  areacode |= (sAxis1 & (sAxisPhi | sAxisMin));
349  if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
350  else areacode |= sBoundary;
351 
352  if (AmIOnLeftSide(xx, dphimin) > 0) isoutside = true;
353 
354  } else if (AmIOnLeftSide(xx, dphimax) <= 0) { // xx is on dphimax
355 
356  areacode |= (sAxis1 & (sAxisPhi | sAxisMax));
357  if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
358  else areacode |= sBoundary;
359 
360  if (AmIOnLeftSide(xx, dphimax) < 0) isoutside = true;
361 
362  }
363 
364  // if isoutside = true, clear inside bit.
365  // if not on boundary, add axis information.
366 
367  if (isoutside) {
368  G4int tmpareacode = areacode & (~sInside);
369  areacode = tmpareacode;
370  } else if ((areacode & sBoundary) != sBoundary) {
371  areacode |= (sAxis0 & sAxisRho) | (sAxis1 & sAxisPhi);
372  }
373 
374  } else {
375 
376  // out of boundary of rho-axis
377 
378  if (xx.getRho() < fAxisMin[rhoaxis]) {
379  areacode |= (sAxis0 & (sAxisRho | sAxisMin)) | sBoundary;
380  } else if (xx.getRho() > fAxisMax[rhoaxis]) {
381  areacode |= (sAxis0 & (sAxisRho | sAxisMax)) | sBoundary;
382  }
383 
384  // out of boundary of phi-axis
385 
386  if (AmIOnLeftSide(xx, dphimin, false) >= 0) { // xx is leftside or
387  areacode |= (sAxis1 & (sAxisPhi | sAxisMin)) ; // boundary of dphimin
388  if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
389  else areacode |= sBoundary;
390 
391  } else if (AmIOnLeftSide(xx, dphimax, false) <= 0) { // xx is rightside or
392  areacode |= (sAxis1 & (sAxisPhi | sAxisMax)) ; // boundary of dphimax
393  if (areacode & sBoundary) areacode |= sCorner; // xx is on the corner.
394  else areacode |= sBoundary;
395 
396  }
397 
398  if ((areacode & sBoundary) != sBoundary) {
399  areacode |= (sAxis0 & sAxisRho) | (sAxis1 & sAxisPhi);
400  }
401 
402  }
403  return areacode;
404  } else {
405 
406  std::ostringstream message;
407  message << "Feature NOT implemented !" << G4endl
408  << " fAxis[0] = " << fAxis[0] << G4endl
409  << " fAxis[1] = " << fAxis[1];
410  G4Exception("G4TwistTubsFlatSide::GetAreaCode()", "GeomSolids0001",
411  FatalException, message);
412  }
413  return areacode;
414 }
415 
416 
417 //=====================================================================
418 //* SetCorners --------------------------------------------------------
419 
421 {
422  // Set Corner points in local coodinate.
423 
424  if (fAxis[0] == kRho && fAxis[1] == kPhi) {
425 
426  G4int rhoaxis = 0; // kRho
427  G4int phiaxis = 1; // kPhi
428 
429  G4double x, y, z;
430  // corner of Axis0min and Axis1min
431  x = fAxisMin[rhoaxis]*std::cos(fAxisMin[phiaxis]);
432  y = fAxisMin[rhoaxis]*std::sin(fAxisMin[phiaxis]);
433  z = 0;
434  SetCorner(sC0Min1Min, x, y, z);
435  // corner of Axis0max and Axis1min
436  x = fAxisMax[rhoaxis]*std::cos(fAxisMin[phiaxis]);
437  y = fAxisMax[rhoaxis]*std::sin(fAxisMin[phiaxis]);
438  z = 0;
439  SetCorner(sC0Max1Min, x, y, z);
440  // corner of Axis0max and Axis1max
441  x = fAxisMax[rhoaxis]*std::cos(fAxisMax[phiaxis]);
442  y = fAxisMax[rhoaxis]*std::sin(fAxisMax[phiaxis]);
443  z = 0;
444  SetCorner(sC0Max1Max, x, y, z);
445  // corner of Axis0min and Axis1max
446  x = fAxisMin[rhoaxis]*std::cos(fAxisMax[phiaxis]);
447  y = fAxisMin[rhoaxis]*std::sin(fAxisMax[phiaxis]);
448  z = 0;
449  SetCorner(sC0Min1Max, x, y, z);
450 
451  } else {
452  std::ostringstream message;
453  message << "Feature NOT implemented !" << G4endl
454  << " fAxis[0] = " << fAxis[0] << G4endl
455  << " fAxis[1] = " << fAxis[1];
456  G4Exception("G4TwistTubsFlatSide::SetCorners()", "GeomSolids0001",
457  FatalException, message);
458  }
459 }
460 
461 //=====================================================================
462 //* SetBoundaries() ---------------------------------------------------
463 
465 {
466  // Set direction-unit vector of phi-boundary-lines in local coodinate.
467  // Don't call the function twice.
468 
469  if (fAxis[0] == kRho && fAxis[1] == kPhi) {
470 
471  G4ThreeVector direction;
472  // sAxis0 & sAxisMin
473  direction = GetCorner(sC0Min1Max) - GetCorner(sC0Min1Min);
474  direction = direction.unit();
475  SetBoundary(sAxis0 & (sAxisPhi | sAxisMin), direction,
477 
478  // sAxis0 & sAxisMax
479  direction = GetCorner(sC0Max1Max) - GetCorner(sC0Max1Min);
480  direction = direction.unit();
481  SetBoundary(sAxis0 & (sAxisPhi | sAxisMax), direction,
483 
484  // sAxis1 & sAxisMin
485  direction = GetCorner(sC0Max1Min) - GetCorner(sC0Min1Min);
486  direction = direction.unit();
487  SetBoundary(sAxis1 & (sAxisRho | sAxisMin), direction,
489 
490  // sAxis1 & sAxisMax
491  direction = GetCorner(sC0Max1Max) - GetCorner(sC0Min1Max);
492  direction = direction.unit();
493  SetBoundary(sAxis1 & (sAxisRho | sAxisMax), direction,
495  } else {
496  std::ostringstream message;
497  message << "Feature NOT implemented !" << G4endl
498  << " fAxis[0] = " << fAxis[0] << G4endl
499  << " fAxis[1] = " << fAxis[1];
500  G4Exception("G4TwistTubsFlatSide::SetBoundaries()", "GeomSolids0001",
501  FatalException, message);
502  }
503 }
504 
505 //=====================================================================
506 //* GetFacets() -------------------------------------------------------
507 
509  G4int faces[][4], G4int iside )
510 {
511 
512  G4ThreeVector p ;
513 
514  G4double rmin = fAxisMin[0] ;
515  G4double rmax = fAxisMax[0] ;
516  G4double phimin, phimax ;
517 
518  G4double r,phi ;
519 
520  G4int i,j ;
521 
522  G4int nnode,nface ;
523 
524  for ( i = 0 ; i<n ; i++ ) {
525 
526  r = rmin + i*(rmax-rmin)/(n-1) ;
527 
528  phimin = GetBoundaryMin(r) ;
529  phimax = GetBoundaryMax(r) ;
530 
531  for ( j = 0 ; j<k ; j++ )
532  {
533  phi = phimin + j*(phimax-phimin)/(k-1) ;
534 
535  nnode = GetNode(i,j,k,n,iside) ;
536  p = SurfacePoint(phi,r,true) ; // surface point in global coord.system
537 
538  xyz[nnode][0] = p.x() ;
539  xyz[nnode][1] = p.y() ;
540  xyz[nnode][2] = p.z() ;
541 
542  if ( i<n-1 && j<k-1 ) { // conterclock wise filling
543 
544  nface = GetFace(i,j,k,n,iside) ;
545 
546  if (fHandedness < 0) { // lower side
547  faces[nface][0] = GetEdgeVisibility(i,j,k,n,0,-1) * ( GetNode(i ,j ,k,n,iside)+1) ;
548  faces[nface][1] = GetEdgeVisibility(i,j,k,n,1,-1) * ( GetNode(i ,j+1,k,n,iside)+1) ;
549  faces[nface][2] = GetEdgeVisibility(i,j,k,n,2,-1) * ( GetNode(i+1,j+1,k,n,iside)+1) ;
550  faces[nface][3] = GetEdgeVisibility(i,j,k,n,3,-1) * ( GetNode(i+1,j ,k,n,iside)+1) ;
551  } else { // upper side
552  faces[nface][0] = GetEdgeVisibility(i,j,k,n,0,1) * ( GetNode(i ,j ,k,n,iside)+1) ;
553  faces[nface][1] = GetEdgeVisibility(i,j,k,n,1,1) * ( GetNode(i+1,j ,k,n,iside)+1) ;
554  faces[nface][2] = GetEdgeVisibility(i,j,k,n,2,1) * ( GetNode(i+1,j+1,k,n,iside)+1) ;
555  faces[nface][3] = GetEdgeVisibility(i,j,k,n,3,1) * ( GetNode(i ,j+1,k,n,iside)+1) ;
556 
557  }
558 
559 
560 
561  }
562  }
563  }
564 }
Definition: geomdefs.hh:54
G4int GetAreacode(G4int i) const
void SetCorner(G4int areacode, G4double x, G4double y, G4double z)
virtual void GetFacets(G4int m, G4int n, G4double xyz[][3], G4int faces[][4], G4int iside)
static const G4int sC0Min1Max
G4TwistTubsFlatSide(const G4String &name, const G4RotationMatrix &rot, const G4ThreeVector &tlate, const G4ThreeVector &n, const EAxis axis1=kRho, const EAxis axis2=kPhi, G4double axis0min=-kInfinity, G4double axis1min=-kInfinity, G4double axis0max=kInfinity, G4double axis1max=kInfinity)
static const G4int sAxisPhi
static const G4double kInfinity
Definition: geomdefs.hh:42
CLHEP::Hep3Vector G4ThreeVector
G4ThreeVector ComputeGlobalDirection(const G4ThreeVector &lp) const
CLHEP::HepRotation G4RotationMatrix
G4ThreeVector ComputeLocalDirection(const G4ThreeVector &gp) const
G4SurfCurNormal fCurrentNormal
G4double z
Definition: TRTMaterials.hh:39
G4String name
Definition: TRTMaterials.hh:40
G4double fAxisMax[2]
virtual G4double GetBoundaryMin(G4double phi)
G4ThreeVector GetCorner(G4int areacode) const
static const G4int sOutside
G4double a
Definition: TRTMaterials.hh:39
CurrentStatus fCurStat
G4ThreeVector ComputeGlobalPoint(const G4ThreeVector &lp) const
int G4int
Definition: G4Types.hh:78
G4RotationMatrix fRot
G4ThreeVector fTrans
G4double fAxisMin[2]
static double normal(HepRandomEngine *eptr)
Definition: RandPoisson.cc:77
static const G4int sC0Min1Min
G4bool IsOutside(G4int areacode) const
G4double GetDistance(G4int i) const
static const G4int sAxis1
static const G4int sC0Max1Max
static const G4int sBoundary
virtual G4int DistanceToSurface(const G4ThreeVector &gp, const G4ThreeVector &gv, G4ThreeVector gxx[], G4double distance[], G4int areacode[], G4bool isvalid[], EValidate validate=kValidateWithTol)
G4double GetRadialTolerance() const
bool G4bool
Definition: G4Types.hh:79
void SetCurrentStatus(G4int i, G4ThreeVector &xx, G4double &dist, G4int &areacode, G4bool &isvalid, G4int nxx, EValidate validate, const G4ThreeVector *p, const G4ThreeVector *v=0)
G4bool IsValid(G4int i) const
static const G4int sAxis0
virtual G4ThreeVector SurfacePoint(G4double, G4double, G4bool isGlobal=false)
G4bool IsInside(G4int areacode, G4bool testbitmode=false) const
static const G4int sAxisMin
virtual G4int GetAreaCode(const G4ThreeVector &xx, G4bool withTol=true)
const G4int n
virtual void SetBoundaries()
static const G4int sInside
void G4Exception(const char *originOfException, const char *exceptionCode, G4ExceptionSeverity severity, const char *comments)
Definition: G4Exception.cc:41
static const G4int sCorner
G4int GetNode(G4int i, G4int j, G4int m, G4int n, G4int iside)
static const G4int sAxisMax
EAxis
Definition: geomdefs.hh:54
G4ThreeVector GetXX(G4int i) const
virtual G4String GetName() const
virtual void SetBoundary(const G4int &axiscode, const G4ThreeVector &direction, const G4ThreeVector &x0, const G4int &boundarytype)
virtual G4int AmIOnLeftSide(const G4ThreeVector &me, const G4ThreeVector &vec, G4bool withTol=true)
#define G4endl
Definition: G4ios.hh:61
G4int GetFace(G4int i, G4int j, G4int m, G4int n, G4int iside)
virtual G4double GetBoundaryMax(G4double phi)
G4ThreeVector ComputeLocalPoint(const G4ThreeVector &gp) const
virtual G4ThreeVector GetNormal(const G4ThreeVector &, G4bool isGlobal=false)
double G4double
Definition: G4Types.hh:76
Definition: geomdefs.hh:54
G4int GetEdgeVisibility(G4int i, G4int j, G4int m, G4int n, G4int number, G4int orientation)
static const G4int sC0Max1Min
CurrentStatus fCurStatWithV
static G4GeometryTolerance * GetInstance()
G4GLOB_DLL std::ostream G4cerr
void ResetfDone(EValidate validate, const G4ThreeVector *p, const G4ThreeVector *v=0)
static const G4int sAxisRho