C3Plane Class Reference

#include <GeoPrimitives.H>

Collaboration diagram for C3Plane:

Public Member Functions
	C3Plane ()
	C3Plane (const C3Point &p1, const C3Point &p2, const C3Point &p3)
	C3Plane (const C3Vector &N, const C3Point &P)
	C3Plane (const C3Plane &plane)
	C3Plane (const std::vector< C3Point > &vec)
C3Plane &	operator= (const C3Plane &plane)
double	A () const
double	B () const
double	C () const
double	D () const
C3Vector &	normal ()
const C3Vector &	normal () const
C3Point &	point ()
const C3Point &	point () const
bool	contains_point (const C3Point &P) const
bool	operator== (const C3Plane &plane) const

Protected Attributes
C3Vector	n
C3Point	p

Detailed Description

Definition at line 1406 of file GeoPrimitives.H.

Constructor & Destructor Documentation

C3Plane ( )

inline

Definition at line 1411 of file GeoPrimitives.H.

{};

C3Plane ( const C3Point &  p1, const C3Point &  p2, const C3Point &  p3  )

inline

Definition at line 1412 of file GeoPrimitives.H.

References C3Plane::A(), C3Plane::B(), C3Plane::C(), C3Plane::n, C3Vector::Normalize(), C3Vector::x(), C3Vector::y(), and C3Vector::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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C3Plane ( const C3Vector &  N, const C3Point &  P  )

inline

Definition at line 1428 of file GeoPrimitives.H.

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

C3Plane ( const C3Plane &  plane )

inline

Definition at line 1431 of file GeoPrimitives.H.

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

C3Plane ( const std::vector< C3Point > &  vec )

inline

Definition at line 1434 of file GeoPrimitives.H.

References C3Plane::A(), C3Plane::B(), C3Plane::C(), C3Plane::n, C3Vector::Normalize(), x, C3Vector::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 1459 of file GeoPrimitives.H.

References C3Plane::n, and C3Vector::x().

Referenced by C3Plane::C3Plane().

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

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double B ( ) const

inline

Definition at line 1460 of file GeoPrimitives.H.

References C3Plane::n, and C3Vector::y().

Referenced by C3Plane::C3Plane().

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

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double C ( ) const

inline

Definition at line 1461 of file GeoPrimitives.H.

References C3Plane::n, and C3Vector::z().

Referenced by C3Plane::C3Plane().

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

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bool contains_point ( const C3Point &  P ) const

inline

Definition at line 1470 of file GeoPrimitives.H.

References C3Plane::D(), C3Plane::n, GeoPrim::TOL, C3Vector::x(), C3Vector::y(), and C3Vector::z().

Referenced by C3Plane::operator==(), and Mesh::GenericElement::ShapeOK().

    {
      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 1462 of file GeoPrimitives.H.

References C3Plane::n, C3Plane::p, C3Vector::x(), C3Vector::y(), and C3Vector::z().

Referenced by C3Plane::contains_point().

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

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C3Vector& normal ( )

inline

Definition at line 1466 of file GeoPrimitives.H.

References C3Plane::n.

{ return(n); };

const C3Vector& normal ( ) const

inline

Definition at line 1467 of file GeoPrimitives.H.

References C3Plane::n.

{ return(n); };

C3Plane& operator= ( const C3Plane &  plane )

inline

Definition at line 1453 of file GeoPrimitives.H.

References C3Plane::n, and C3Plane::p.

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

bool operator== ( const C3Plane &  plane ) const

inline

Definition at line 1474 of file GeoPrimitives.H.

References C3Plane::contains_point(), C3Plane::n, C3Plane::p, and C3Vector::Unit().

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

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C3Point& point ( )

inline

Definition at line 1468 of file GeoPrimitives.H.

References C3Plane::p.

{ return(p); };

const C3Point& point ( ) const

inline

Definition at line 1469 of file GeoPrimitives.H.

References C3Plane::p.

{ return(p); };

Member Data Documentation

C3Vector n

protected

Definition at line 1408 of file GeoPrimitives.H.

Referenced by C3Plane::A(), C3Plane::B(), C3Plane::C(), C3Plane::C3Plane(), C3Plane::contains_point(), C3Plane::D(), C3Plane::normal(), C3Plane::operator=(), and C3Plane::operator==().

C3Point p

protected

Definition at line 1409 of file GeoPrimitives.H.

Referenced by C3Plane::D(), C3Plane::operator=(), C3Plane::operator==(), and C3Plane::point().

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

• GeoPrimitives.H