SoTubs.h

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//
// $Id$
//
/*-----------------------------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;


#define SoTubs Geant4_SoTubs

class SoTubs:public SoShape {

  // The following is required:
  SO_NODE_HEADER(SoTubs);
 
public:

  //
  //
  SoSFFloat pRMin;   
  //
  //
  SoSFFloat pRMax;
  //
  //
  SoSFFloat pDz;
  //
  //
  SoSFFloat pSPhi;
  //
  //
  SoSFFloat pDPhi;             
  //
  //
  SoSFNode  alternateRep;

  //
  //
  SoTubs();

  //
  //
  static void initClass();

  //
  //
  virtual void generateAlternateRep();

  //
  //
  virtual void clearAlternateRep();

protected:

  //
  //
  virtual void computeBBox(SoAction *action, SbBox3f &box, SbVec3f &center );

  //
  //
  virtual void generatePrimitives(SoAction *action);

  //
  //
  virtual SoChildList *getChildren() const;


protected:
  //
  //
  virtual ~SoTubs();

private: 

  //
  //
  void generateChildren();  

  //
  //
  void updateChildren();

  //
  //
  SoChildList *children;

  //
  //
  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