Import Geant4 6.2.0 source tree

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+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+//
+// $Id: G4TwistedSurface.hh,v 1.4 2004/05/24 12:09:47 gcosmo Exp $
+// GEANT4 tag $Name: geant4-06-02 $
+//
+// 
+// --------------------------------------------------------------------
+// GEANT 4 class header file
+//
+//
+// G4TwistedSurface
+//
+// Class description:
+//
+//  Class describing a twisted boundary surface for G4VSolid.
+
+// Author: 
+//   01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp)
+//
+// History:
+//   13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4
+//                 from original version in Jupiter-2.5.02 application.
+// --------------------------------------------------------------------
+#ifndef __G4TWISTEDSURFACE__
+#define __G4TWISTEDSURFACE__
+
+#include "G4VSurface.hh"
+
+class G4TwistedSurface : public G4VSurface
+{
+  public:  // with description
+   
+   G4TwistedSurface(const G4String         &name,
+                    const G4RotationMatrix &rot,   // 0.5*(phi-width segment)
+                    const G4ThreeVector    &tlate,
+                          G4int    handedness, // R-hand = 1, L-hand = -1
+                    const G4double kappa,      // tan(TwistAngle/2)/fZHalfLen
+                    const EAxis    axis0 = kXAxis,
+                    const EAxis    axis1 = kZAxis,
+                          G4double axis0min = -kInfinity,
+                          G4double axis1min = -kInfinity,
+                          G4double axis0max = kInfinity,
+                          G4double axis1max = kInfinity );
+    
+   G4TwistedSurface(const G4String     &name,
+                          G4double      EndInnerRadius[2],
+                          G4double      EndOuterRadius[2],
+                          G4double      DPhi,
+                          G4double      EndPhi[2],
+                          G4double      EndZ[2], 
+                          G4double      InnerRadius,
+                          G4double      OuterRadius,
+                          G4double      Kappa,
+                          G4int         handedness);
+
+   virtual ~G4TwistedSurface();
+   
+   virtual G4ThreeVector  GetNormal(const G4ThreeVector &xx,
+                                          G4bool isGlobal = false) ;   
+   
+   virtual G4int DistanceToSurface(const G4ThreeVector &gp,
+                                   const G4ThreeVector &gv,
+                                         G4ThreeVector  gxx[],
+                                         G4double  distance[],
+                                         G4int     areacode[],
+                                         G4bool    isvalid[],
+                                         EValidate validate = kValidateWithTol);
+                                                  
+   virtual G4int DistanceToSurface(const G4ThreeVector &gp,
+                                         G4ThreeVector  gxx[],
+                                         G4double       distance[],
+                                         G4int          areacode[]);
+ 
+   inline G4ThreeVector ProjectAtPXPZ(const G4ThreeVector &p,
+                                            G4bool isglobal = false) const ;
+
+ private:
+
+   virtual G4double DistanceToPlane(const G4ThreeVector &p,
+                                    const G4ThreeVector &A,
+                                    const G4ThreeVector &B,
+                                    const G4ThreeVector &C,
+                                    const G4ThreeVector &D,
+                                    const G4int          parity,
+                                          G4ThreeVector &xx,
+                                          G4ThreeVector &n);
+
+   virtual G4int GetAreaCode(const G4ThreeVector &xx, 
+                                   G4bool         withTol = true);
+
+   virtual void SetCorners();
+
+   virtual void SetCorners(  G4double      endInnerRad[2],
+                             G4double      endOuterRad[2],
+                             G4double      endPhi[2],
+                             G4double      endZ[2] ) ;
+
+   virtual void SetBoundaries();
+
+  private:
+
+   G4double       fKappa;          // tan(TwistedAngle/2)/HalfLenZ;
+};   
+
+
+//========================================================
+// inline functions
+//========================================================
+
+inline
+G4ThreeVector G4TwistedSurface::ProjectAtPXPZ(const G4ThreeVector &p, 
+                                                    G4bool isglobal) const 
+{
+  // Get Rho at p.z() on Hyperbolic Surface.
+  G4ThreeVector tmpp;
+  if (isglobal) {
+     tmpp = fRot.inverse()*p - fTrans;
+  } else {
+     tmpp = p;
+  }
+  G4ThreeVector xx(p.x(), p.x() * fKappa * p.z(), p.z());
+  if (isglobal) {
+     return (fRot * xx + fTrans);
+  } else {
+     return xx;
+  }
+}
+
+#endif