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: SoCons.h,v 1.2 2004/06/14 09:27:36 gcosmo Exp $
+// GEANT4 tag $Name: geant4-06-02 $
+//
+/*-----------------------------Hepvis----------------------------------------*/
+/*                                                                           */
+/* Node:             SoCons                                                  */
+/* Description:      Represents the G4Cons Geant Geometry entity             */
+/* Author:           Joe Boudreau Nov 11 1996                                */
+/*                                                                           */
+/*---------------------------------------------------------------------------*/
+#ifndef HEPVis_SoCons_h
+#define HEPVis_SoCons_h
+
+#include <Inventor/fields/SoSFFloat.h>
+#include <Inventor/fields/SoSFNode.h>
+#include <Inventor/fields/SoSFBool.h>
+#include <Inventor/nodes/SoShape.h>
+
+class SoSFNode;
+//! SoCons - Inventor version of the G4Cons Geant Geometry entity
+/*!
+ * Node:	     SoCons
+ *
+ * Description:      The Inventor version of the G4Cons Geant Geometry entity
+ *
+ * Author:	     Joe Boudreau Nov 11 1996
+ *
+ * A G4Cons is, in the general case, a Phi segment of a cone, with half-length
+ * fDz, inner and outer radii specified at -fDz and +fDz. The Phi segment is
+ * described by a starting fSPhi angle, and the +fDPhi delta angle for the shape.
+ * If the delta angle is >=2*M_PI, the shape is treated as continuous in Phi
+ *
+ * Member Data:
+ *
+ *      fRmin1  inside radius at  -fDz
+ *      fRmin2  inside radius at  +fDz
+ *      fRmax1  outside radius at -fDz
+ *      fRmax2  outside radius at +fDz
+ *      fDz     half length in z
+ *
+ *      fSPhi   starting angle of the segment in radians
+ *      fDPhi   delta angle of the segment in radians
+*/
+
+#define SoCons Geant4_SoCons
+
+class SoCons:public SoShape {
+
+  // The following is required:
+  SO_NODE_HEADER(SoCons);
+ 
+public:
+
+  //
+  //! Inside radius at -fDz
+  //
+  SoSFFloat fRmin1;   
+  //
+  //! Inside radius at +fDz
+  //
+  SoSFFloat fRmin2;   
+  //
+  //! Outside radius at -fDz
+  //
+  SoSFFloat fRmax1;
+  //
+  //! Outside radius at +fDz
+  //
+  SoSFFloat fRmax2;
+  //
+  //! Half-length along Z
+  //
+  SoSFFloat fDz;
+  //
+  //! Starting angle, in radians
+  //
+  SoSFFloat fSPhi;
+  //
+  //! Delta-angle, in radians
+  //
+  SoSFFloat fDPhi;             
+  //
+  //! An Inventor option - slightly better render, worse performance
+  //
+  SoSFBool  smoothDraw;
+  //
+  //! Alternate rep required - for use by users without HEPVis shared objects
+  //
+  SoSFNode  alternateRep;
+
+  //
+  //! Constructor, required
+  //
+  SoCons();
+
+  //
+  //! Class Initializer, required
+  //
+  static void initClass();
+
+  //
+  //! Generate AlternateRep, required.  Generating an alternate representation
+  //! must be done upon users request.  It allows an Inventor program to read
+  //! back the file without requiring *this* code to be dynamically linked. 
+  //! If the users expects that *this* code will be dynamically linked, he
+  //! need not invoke this method.  
+  //
+  virtual void generateAlternateRep();
+
+  //
+  //! We better be able to clear it, too!
+  //
+  virtual void clearAlternateRep();
+
+protected:
+
+  //
+  //! compute bounding Box, required
+  //
+  virtual void computeBBox(SoAction *action, SbBox3f &box, SbVec3f &center );
+
+  //
+  //! Generate Primitives, required
+  //
+  virtual void generatePrimitives(SoAction *action);
+
+  //
+  //! GetChildList, required whenever the class has hidden children
+  //
+  virtual SoChildList *getChildren() const;
+
+
+protected:
+  //
+  //! Destructor, required
+  //
+  virtual ~SoCons();
+
+private: 
+
+  //
+  //! Generate Children. Used to create the hidden children. Required whenever
+  //! the node has hidden children.  
+  //
+  void generateChildren();  
+
+  //
+  //! Used to modify hidden children when a data field is changed. Required 
+  //! whenever the class has hidden children. 
+  //
+  void updateChildren();
+
+  //
+  //! ChildList. Required whenever the class has hidden children.  
+  //
+  SoChildList *children;
+
+  //
+  //! help with trigonometry.  increments sines an cosines by an angle.
+  //
+  void inc(double & sinPhi, double & cosPhi, double sinDeltaPhi, double cosDeltaPhi) const {
+    double oldSin=sinPhi,oldCos=cosPhi;
+    sinPhi = oldSin*cosDeltaPhi+oldCos*sinDeltaPhi;
+    cosPhi = oldCos*cosDeltaPhi-oldSin*sinDeltaPhi;    
+  }
+};
+
+#endif