geoalgo::LineSegment Class Reference

Representation of a simple 3D line segment Defines a finite 3D straight line by having the start and end position (Point_t).
. More...

#include "GeoLineSegment.h"

Public Member Functions
	LineSegment ()
	Default constructor. More...
virtual	~LineSegment ()
	Default destructor. More...
	LineSegment (const double start_x, const double start_y, const double start_z, const double end_x, const double end_y, const double end_z)
	Alternative ctor (1) More...
	LineSegment (const Point_t &start, const Point_t &end)
	Altenartive ctor (2) More...
const Point_t &	Start () const
	Start getter. More...
const Point_t &	End () const
	End getter. More...
const Vector_t	Dir () const
	Direction getter. More...
void	Start (const double x, const double y, const double z)
	Start setter. More...
void	End (const double x, const double y, const double z)
	End setter. More...
template<class T , class U >
	LineSegment (const T &start, const U &end)
	Alternative ctor using template (3) More...

Protected Member Functions
void	DirReset ()
	Internal function to reset direction. More...

Protected Attributes
Point_t	_start
	Start position of a line. More...
Point_t	_end
	End position of a line. More...
Vector_t	_dir
	Direction. More...

Detailed Description

Representation of a simple 3D line segment Defines a finite 3D straight line by having the start and end position (Point_t).
.

Definition at line 25 of file GeoLineSegment.h.

Constructor & Destructor Documentation

geoalgo::LineSegment::LineSegment

(

)

Default constructor.

Definition at line 6 of file GeoLineSegment.cxx.

References DirReset().

Referenced by ~LineSegment().

                           : _start(3), _end(3), _dir(3)
  {
    DirReset();
  }

virtual geoalgo::LineSegment::~LineSegment ( )

inlinevirtual

Default destructor.

Definition at line 32 of file GeoLineSegment.h.

References Dir(), DirReset(), End(), util::end(), LineSegment(), Start(), x, y, and z.

{}

geoalgo::LineSegment::LineSegment	(	const double	start_x,
		const double	start_y,
		const double	start_z,
		const double	end_x,
		const double	end_y,
		const double	end_z
	)

Alternative ctor (1)

Definition at line 11 of file GeoLineSegment.cxx.

References DirReset().

    : _start(start_x, start_y, start_z), _end(end_x, end_y, end_z), _dir(3)
  {
    DirReset();
  }

geoalgo::LineSegment::LineSegment	(	const Point_t &	start,
		const Point_t &	end
	)

Altenartive ctor (2)

Definition at line 22 of file GeoLineSegment.cxx.

References DirReset().

    : _start(start), _end(end), _dir(3)
  {
    if (start.size() != 3 || end.size() != 3)
      throw GeoAlgoException("LineSegment ctor accepts only 3D Point!");
    DirReset();
  }

template<class T , class U >

geoalgo::LineSegment::LineSegment ( const T &  start, const U &  end  )

inline

Alternative ctor using template (3)

Definition at line 70 of file GeoLineSegment.h.

                                              : LineSegment(Point_t(start), Point_t(end))
    {}

Member Function Documentation

const Vector_t geoalgo::LineSegment::Dir

(

)

const

Direction getter.

Definition at line 40 of file GeoLineSegment.cxx.

References _dir.

Referenced by geoalgo::GeoAlgo::_ClosestPt_(), geoalgo::GeoAlgo::_commonOrigin_(), and ~LineSegment().

  {
    return _dir;
  }

void geoalgo::LineSegment::DirReset ( )

protected

Internal function to reset direction.

Definition at line 61 of file GeoLineSegment.cxx.

References _dir, _end, and _start.

Referenced by End(), LineSegment(), Start(), and ~LineSegment().

  {
    _dir = _end - _start;
  }

const Point_t & geoalgo::LineSegment::End

(

)

const

End getter.

Definition at line 35 of file GeoLineSegment.cxx.

References _end.

Referenced by geoalgo::GeoAlgo::_ClosestPt_(), geoalgo::GeoAlgo::_SqDist_(), geoalgo::GeoObjCollection::Add(), geoalgo::GeoAlgo::Intersection(), and ~LineSegment().

  {
    return _end;
  }

void geoalgo::LineSegment::End	(	const double	x,
		const double	y,
		const double	z
	)

End setter.

Definition at line 53 of file GeoLineSegment.cxx.

References _end, DirReset(), x, y, and z.

  {
    _end[0] = x;
    _end[1] = y;
    _end[2] = z;
    DirReset();
  }

const Point_t & geoalgo::LineSegment::Start

(

)

const

Start getter.

Definition at line 30 of file GeoLineSegment.cxx.

References _start.

Referenced by geoalgo::GeoAlgo::_ClosestPt_(), geoalgo::GeoAlgo::_commonOrigin_(), geoalgo::GeoAlgo::_SqDist_(), geoalgo::GeoAlgo::ClosestPt(), geoalgo::GeoAlgo::commonOrigin(), geoalgo::GeoAlgo::Intersection(), geoalgo::GeoAlgo::SqDist(), and ~LineSegment().

  {
    return _start;
  }

void geoalgo::LineSegment::Start	(	const double	x,
		const double	y,
		const double	z
	)

Start setter.

Definition at line 45 of file GeoLineSegment.cxx.

References _start, DirReset(), x, y, and z.

  {
    _start[0] = x;
    _start[1] = y;
    _start[2] = z;
    DirReset();
  }

Member Data Documentation

Vector_t geoalgo::LineSegment::_dir

protected

Direction.

Definition at line 62 of file GeoLineSegment.h.

Referenced by Dir(), and DirReset().

Point_t geoalgo::LineSegment::_end

protected

End position of a line.

Definition at line 61 of file GeoLineSegment.h.

Referenced by DirReset(), and End().

Point_t geoalgo::LineSegment::_start

protected

Start position of a line.

Definition at line 60 of file GeoLineSegment.h.

Referenced by DirReset(), and Start().

---

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

• larcorealg/v09_13_01/source/larcorealg/GeoAlgo/GeoLineSegment.h
• larcorealg/v09_13_01/source/larcorealg/GeoAlgo/GeoLineSegment.cxx