Import Geant4 10.3.0.beta source tree

2016-06-30 14:12:05 +02:00
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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.          *
+// ********************************************************************
+//
+//
+// $Id:$
+//
+//
+// class G4ScaleTransform
+//
+// Class description:
+//
+// A class for geometric scaling transformations.
+// Supports efficient arbitrary transformation of points, vectors and
+// normals and the computation of compound & inverse transformations.
+//
+// Interfaces to the CLHEP class G4ThreeVector
+//
+// For member function descriptions, see comments by declarations. For
+// additional clarification, also check the `const' declarations for
+// functions & their parameters.
+//
+// Member data:
+//
+//    G4ThreeVector fScale;  // scale transformation 
+//    G4ThreeVector fIScale; // inverse scale (avoid divisions)
+//    G4double flFactor;     // factor for conversion to local frame
+//    G4double fgFactor;     // factor for conversion to global frame
+
+// History:
+// E.Tcherniaev 11 Mar 2016 - added transformations for normal
+// G.Cosmo      18 Feb 2016 - initial version
+//
+// --------------------------------------------------------------------
+#ifndef G4SCALETRANSFORM_HH
+#define G4SCALETRANSFORM_HH
+
+#include "G4Types.hh"
+#include "G4ThreeVector.hh"
+#include "G4Transform3D.hh"
+
+class G4ScaleTransform
+{
+
+  public:
+
+    inline G4ScaleTransform();
+      // Default constructor
+    
+    inline G4ScaleTransform(G4double sx, G4double sy, G4double sz);
+      // Constructor with scale parameters on each axis
+
+    inline G4ScaleTransform(const G4ThreeVector& scale);
+      // Constructor taking a 3-vector
+
+    inline G4ScaleTransform(const G4Scale3D& scale);
+      // Constructor taking a Scale3D
+        
+    inline G4ScaleTransform(const G4ScaleTransform& right);
+      // Copy constructor
+
+    inline G4ScaleTransform& operator=(const G4ScaleTransform& right);
+      // Assignment operator
+
+    inline void Init();
+      // Update the backed-up inverse scale and special conversion factors
+      // based on the values of the scale. Needed at initialisation and
+      // whenever the scale has changed value
+
+    inline const G4ThreeVector& GetScale() const;
+    inline const G4ThreeVector& GetInvScale() const;
+      // Get reference to the inverse scale transformation
+ 
+    inline void SetScale(const G4ThreeVector& scale);
+      // Set scale based on vector
+    inline void SetScale(const G4Scale3D& scale);
+      // Set scale based on a G4Scale3D transformation
+    inline void SetScale(G4double sx, G4double sy, G4double sz);
+      // Set scale based on values
+
+    inline void Transform(const G4ThreeVector& global,
+                                G4ThreeVector& local) const;  
+    inline G4ThreeVector Transform(const G4ThreeVector& global) const;
+      // Transform point from global to local frame
+
+    inline void InverseTransform(const G4ThreeVector& local, 
+                                       G4ThreeVector& global) const;
+    inline G4ThreeVector InverseTransform(const G4ThreeVector& local) const;
+      // Transform point from local to global frame
+
+    inline void TransformNormal(const G4ThreeVector& global,
+                                      G4ThreeVector& local) const;  
+    inline G4ThreeVector TransformNormal(const G4ThreeVector& global) const;
+      // Transform normal from global to local frame
+
+    inline void InverseTransformNormal(const G4ThreeVector& local, 
+                                             G4ThreeVector& global) const;
+    inline G4ThreeVector InverseTransformNormal(const G4ThreeVector& local) const;
+      // Transform normal from local to global frame
+
+    inline G4double TransformDistance(G4double dist,
+                                      const G4ThreeVector& dir) const;
+      // Transform distance along given direction from global to local frame
+
+    inline G4double TransformDistance(G4double safety) const;
+      // Transform distance from global to local frame (conservative)
+
+    inline G4double InverseTransformDistance(G4double dist,
+                                             const G4ThreeVector& dir) const;
+      // Transform distance along given direction from local to global frame
+
+    inline G4double InverseTransformDistance(G4double safety) const;
+      // Transform distance from local to global frame (conservative)
+
+  private:
+
+    G4ThreeVector fScale;  // scale transformation 
+    G4ThreeVector fIScale; // inverse scale (avoid divisions)
+    G4double flFactor, fgFactor;  // conversion factors to local/global frames
+
+}; // End class G4ScaleTransform
+
+std::ostream& operator<<(std::ostream& os, const G4ScaleTransform& scale);
+
+#include "G4ScaleTransform.icc"
+
+#endif // G4SCALETRANSFORM_HH