CPlane Class Reference

#include <GeoPrimitives.H>

Collaboration diagram for CPlane:

Public Member Functions
	CPlane ()
	CPlane (const CPoint &p1, const CPoint &p2, const CPoint &p3)
	CPlane (const CVector &N, const CPoint &P)
	CPlane (const CPlane &plane)
	CPlane (const std::vector< CPoint > &vec)
CPlane &	operator= (const CPlane &plane)
double	A () const
double	B () const
double	C () const
double	D () const
CVector &	normal ()
const CVector &	normal () const
CPoint &	point ()
const CPoint &	point () const
bool	contains_point (const CPoint &P) const
bool	operator== (const CPlane &plane) const

Protected Attributes
CVector	n
CPoint	p

Detailed Description

Definition at line 1332 of file GeoPrimitives.H.

Constructor & Destructor Documentation

CPlane ( )

inline

Definition at line 1337 of file GeoPrimitives.H.

{};

CPlane ( const CPoint &  p1, const CPoint &  p2, const CPoint &  p3  )

inline

Definition at line 1338 of file GeoPrimitives.H.

References CPlane::A(), CPlane::B(), CPlane::C(), CPlane::n, CVector::normalize(), CPoint::x(), CVector::x(), CPoint::y(), and CPoint::z().

      : p(p1)
    {
      double A = p1.y()*(p2.z() - p3.z()) + p2.y()*(p3.z() - p1.z()) +
        p3.y()*(p1.z() - p2.z());
      double B = p1.z()*(p2.x() - p3.x()) + p2.z()*(p3.x() - p1.x()) +
        p3.z()*(p1.x() - p2.x());
      double C = p1.x()*(p2.y() - p3.y()) + p2.x()*(p3.y() - p1.y()) +
        p3.x()*(p1.y() - p2.y());
      //      double D = -1.0 * ( p1.x()*(p2.y()*p3.z() - p3.y()*p2.z()) +
      //                          p2.x()*(p3.y()*p1.z() - p1.y()*p3.z()) +
      //                          p3.x()*(p1.y()*p2.z() - p2.y()*p1.z()) );
      
      n.x(A).y(B).z(C);
      n.normalize();
    };

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CPlane ( const CVector &  N, const CPoint &  P  )

inline

Definition at line 1354 of file GeoPrimitives.H.

      : n(N.unit()),p(P)
    {};

CPlane ( const CPlane &  plane )

inline

Definition at line 1357 of file GeoPrimitives.H.

      : n(plane.n),p(plane.p)
    {};

CPlane ( const std::vector< CPoint > &  vec )

inline

Definition at line 1360 of file GeoPrimitives.H.

References CPlane::A(), CPlane::B(), CPlane::C(), CPlane::n, CVector::normalize(), x, CVector::x(), y, and z.

      : p(vec[0])
    {
      double A = vec[0].y()*(vec[1].z() - vec[2].z()) + 
        vec[1].y()*(vec[2].z() - vec[0].z()) +
        vec[2].y()*(vec[0].z() - vec[1].z());
      double B = vec[0].z()*(vec[1].x() - vec[2].x()) + 
        vec[1].z()*(vec[2].x() - vec[0].x()) +
        vec[2].z()*(vec[0].x() - vec[1].x());
      double C = vec[0].x()*(vec[1].y() - vec[2].y()) + 
        vec[1].x()*(vec[2].y() - vec[0].y()) +
        vec[2].x()*(vec[0].y() - vec[1].y());
      //      double D = -1.0 * ( p1.x()*(p2.y()*p3.z() - p3.y()*p2.z()) +
      //                          p2.x()*(p3.y()*p1.z() - p1.y()*p3.z()) +
      //                          p3.x()*(p1.y()*p2.z() - p2.y()*p1.z()) );
      
      n.x(A).y(B).z(C);
      n.normalize();
    } ;     

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Member Function Documentation

double A ( ) const

inline

Definition at line 1385 of file GeoPrimitives.H.

References CPlane::n, and CVector::x().

Referenced by CPlane::CPlane().

{ return(n.x()); };

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double B ( ) const

inline

Definition at line 1386 of file GeoPrimitives.H.

References CPlane::n, and CVector::y().

Referenced by CPlane::CPlane().

{ return(n.y()); };

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double C ( ) const

inline

Definition at line 1387 of file GeoPrimitives.H.

References CPlane::n, and CVector::z().

Referenced by CPlane::CPlane().

{ return(n.z()); };

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bool contains_point ( const CPoint &  P ) const

inline

Definition at line 1396 of file GeoPrimitives.H.

References CPlane::D(), CPlane::n, GeoPrim::TOL, CPoint::x(), CVector::x(), CPoint::y(), CVector::y(), CPoint::z(), and CVector::z().

Referenced by CFacet::contains_point(), and CPlane::operator==().

    {
      return(fabs(n.x()*P.x() + n.y()*P.y() + n.z()*P.z() + D()) <= TOL);
    };

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double D ( ) const

inline

Definition at line 1388 of file GeoPrimitives.H.

References CPlane::n, CPlane::p, CPoint::x(), CVector::x(), CPoint::y(), CVector::y(), CPoint::z(), and CVector::z().

Referenced by CPlane::contains_point().

    { 
      return( -1.0 * ( n.x()*p.x() + n.y()*p.y() + n.z()*p.z())); 
    };

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CVector& normal ( )

inline

Definition at line 1392 of file GeoPrimitives.H.

References CPlane::n.

{ return(n); };

const CVector& normal ( ) const

inline

Definition at line 1393 of file GeoPrimitives.H.

References CPlane::n.

{ return(n); };

CPlane& operator= ( const CPlane &  plane )

inline

Definition at line 1379 of file GeoPrimitives.H.

References CPlane::n, and CPlane::p.

    {
      n = plane.n;
      p = plane.p;
      return(*this);
    };

bool operator== ( const CPlane &  plane ) const

inline

Definition at line 1400 of file GeoPrimitives.H.

References CPlane::contains_point(), CPlane::n, CPlane::p, and CVector::unit().

    {
      return((plane.n.unit() == n.unit()) && contains_point(plane.p));
    };

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CPoint& point ( )

inline

Definition at line 1394 of file GeoPrimitives.H.

References CPlane::p.

{ return(p); };

const CPoint& point ( ) const

inline

Definition at line 1395 of file GeoPrimitives.H.

References CPlane::p.

{ return(p); };

Member Data Documentation

CVector n

protected

Definition at line 1334 of file GeoPrimitives.H.

Referenced by CPlane::A(), CPlane::B(), CPlane::C(), CPlane::contains_point(), CPlane::CPlane(), CPlane::D(), CPlane::normal(), CPlane::operator=(), and CPlane::operator==().

CPoint p

protected

Definition at line 1335 of file GeoPrimitives.H.

Referenced by CPlane::D(), CPlane::operator=(), CPlane::operator==(), and CPlane::point().

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The documentation for this class was generated from the following file:

• GeoPrimitives.H