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: SoTubs.h,v 1.2 2004/06/14 09:27:38 gcosmo Exp $
+// GEANT4 tag $Name: geant4-06-02 $
+//
+/*-----------------------------Hepvis----------------------------------------*/
+/*                                                                           */
+/* Node:             SoTubs                                                  */
+/* Description:      Represents the G4Tubs Geant Geometry entity             */
+/* Author:           Joe Boudreau Nov 11 1996                                */
+/*                                                                           */
+/*---------------------------------------------------------------------------*/
+#ifndef HEPVis_SoTubs_h
+#define HEPVis_SoTubs_h
+
+#include <Inventor/fields/SoSFFloat.h>
+#include <Inventor/fields/SoSFNode.h>
+#include <Inventor/fields/SoSFBool.h>
+#include <Inventor/nodes/SoShape.h>
+
+class SoSFNode;
+
+//! SoTubs - Inventor version of the G4Tubs Geant Geometry entity
+/*!
+ * Node:	     SoTubs
+ * 
+ * Description:      The Inventor version of the G4Tubs Geant Geometry entity
+ * 
+ * Author:	     Joe Boudreau Nov 11 1996
+ * 
+ * class G4Tubs
+ * 
+ * A tube or tube segment with curved sides parallel to
+ * the z-axis. The tube has a specified half-length along
+ * the z axis, about which it is centred, and a given
+ * minimum and maximum radius. A minimum radius of 0
+ * signifies a filled tube /cylinder. The tube segment is
+ * specified by starting and delta
+ * angles for phi, with 0 being the +x axis, PI/2
+ * the +y axis. A delta angle of 2PI signifies a
+ * complete, unsegmented tube/cylinder
+ *
+ * Always use Inventor Fields. This allows Inventor to detect a change to
+ * the data field and take the appropriate action; e.g., redraw the scene.
+*/
+
+#define SoTubs Geant4_SoTubs
+
+class SoTubs:public SoShape {
+
+  // The following is required:
+  SO_NODE_HEADER(SoTubs);
+ 
+public:
+
+  //
+  //! Inside radius of the tube
+  //
+  SoSFFloat pRMin;   
+  //
+  //! Outside radius of the tube
+  //
+  SoSFFloat pRMax;
+  //
+  //! Half-length in Z
+  //
+  SoSFFloat pDz;
+  //
+  //! Starting angle, in radians
+  //
+  SoSFFloat pSPhi;
+  //
+  //! Delta-angle, in radians
+  //
+  SoSFFloat pDPhi;             
+  //
+  //! Alternate rep - required
+  //
+  SoSFNode  alternateRep;
+
+  //
+  //! Constructor, required
+  //
+  SoTubs();
+
+  //
+  //! 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 ~SoTubs();
+
+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