00001 /*=======================================================================
00002  *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
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00004  ***                                                                                ***
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00008  ***                                                                                ***
00009  ***                        RESTRICTED RIGHTS LEGEND                                ***
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00012  ***  SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT      ***
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00015  ***                                                                                ***
00016  ***                   COPYRIGHT (C) 1996-2014 BY FEI S.A.S,                        ***
00017  ***                        BORDEAUX, FRANCE                                        ***
00018  ***                      ALL RIGHTS RESERVED                                       ***
00019 **=======================================================================*/
00020 /*=======================================================================
00021 ** Author      : VSG (MMM YYYY)
00022 **=======================================================================*/
00023 
00024 #ifndef  _PO_CIRCLE_THREE_POINTS_
00025 #define  _PO_CIRCLE_THREE_POINTS_
00026 
00027 #include <MeshViz/graph/PoCircle.h>
00028 #include <Inventor/fields/SoSFVec2f.h>
00029 #include <Inventor/fields/SoSFFloat.h>
00030 
00053 class  PoCircleThreePoints : public PoCircle {
00054 
00055   SO_KIT_HEADER(PoCircleThreePoints) ;
00056 
00057 
00058  public:
00059 
00060   /* Fields */
00061 
00065   SoSFVec2f p ;
00066 
00070   SoSFVec2f q ;
00071 
00075   SoSFVec2f r ;
00076 
00077 
00078 
00079   /* Methods */
00080 
00084   PoCircleThreePoints()
00085     { init(SbVec2f(1.0, 0.0), SbVec2f(0.0, 1.0), SbVec2f(-1, 0.)) ; }
00086 
00090   PoCircleThreePoints(const SbVec2f &_p, const SbVec2f &_q, const SbVec2f &_r)
00091     { init(_p, _q, _r) ; }
00092 
00096   virtual void rebuild() ;
00097 
00098   /*----------------------------------------------------------------------------*/
00099  private:
00100   static void initClass() ;
00101     static void exitClass() ;
00102 
00103  private:
00104   // Methods
00105   // Destructor
00106   virtual ~PoCircleThreePoints() ;
00107   virtual SbBool setUpConnections(SbBool onOff, SbBool doItAlways = FALSE) ;
00108   virtual void   setDefaultOnNonWritingFields() ;
00109   
00110  private:
00111   // Init method
00112 
00113   void init(const SbVec2f &p, const SbVec2f &q, const SbVec2f &r) ;
00114 
00115   // Compute circle center from three points p1, p2 and p3
00116   SbBool computeCircleCenter(const SbVec2f &p1, const SbVec2f &p2,
00117                              const SbVec2f &p3, SbVec2f &center) ;
00118   // Sensors
00119   FieldSensorList fieldSensorList ;
00120   
00121   // List of fields defined in this class
00122   SoFieldList     fieldList ;
00123 
00124 } ;
00125 
00126 /*----------------------------------------------------------------------------*/
00127 
00128 #endif /* _PO_CIRCLE_THREE_POINTS_  */
00129 
00130
MeshViz/graph/PoCircleThreePoints.h
