//----------------------------------------------------------------------------
//  EgalTech 2014-2015
//----------------------------------------------------------------------------
// File : EGkPlane3d.h           Data : 25.02.15          Versione : 1.6b7
// Contenuto : Dichiarazione classe piano Plane3d.
//
//
//
// Modifiche : 08.04.14 DS Creazione modulo.
//             25.02.15 DS Agg. PointInPlane*.
//
//----------------------------------------------------------------------------

#pragma once

#include "/EgtDev/Include/EGkPoint3d.h"

//-----------------------------------------------------------------------------
class Plane3d
{
   public :
      Vector3d vtN ;
      double   dDist ;
} ;

//-----------------------------------------------------------------------------
inline bool
SetPlane( const Point3d& ptP, const Vector3d& vtN, Plane3d& plPlane)
{
   if ( vtN.IsSmall())
      return false ;
   plPlane.vtN = vtN ;
   plPlane.dDist = ( ptP - ORIG) * plPlane.vtN ;
   return true ;
}

//-----------------------------------------------------------------------------
inline bool
PointInPlaneApprox( const Point3d& ptP, const Plane3d& plPlane)
{
   return ( fabs( (( ptP - ORIG) * plPlane.vtN) - plPlane.dDist) < EPS_SMALL) ;
}

//-----------------------------------------------------------------------------
inline bool
PointInPlaneExact( const Point3d& ptP, const Plane3d& plPlane)
{
   return ( fabs( (( ptP - ORIG) * plPlane.vtN) - plPlane.dDist) < EPS_ZERO) ;
}