core/vgl/vgl_lineseg_test.h File Reference

#include <vgl/vgl_line_segment_2d.h>
#include <vgl/vgl_line_2d.h>
#include <vgl/vgl_point_2d.h>
#include <vcl_cmath.h>

Go to the source code of this file.

Defines
#define	VGL_LINESEG_TEST_INSTANTIATE(T)   extern "please include vgl/vgl_lineseg_test.txx instead"
Functions
template<class T >
export bool	vgl_lineseg_test_line (T x1, T y1, T x2, T y2, T x3, T y3, T x4, T y4)
	true if the line joining [1], [2] meets the linesegment joining [3], [4].
template<class T >
export bool	vgl_lineseg_test_lineseg (T x1, T y1, T x2, T y2, T x3, T y3, T x4, T y4)
	true if the linesegment joining [1], [2] meets the linesegment joining [3], [4].
template<class T >
bool	vgl_lineseg_test_line (vgl_line_2d< T > const &l1, vgl_line_segment_2d< T > const &l2)
	true if the line meets the linesegment.
template<class T >
export bool	vgl_lineseg_test_point (vgl_point_2d< T > const &p, vgl_line_segment_2d< T > const &lseg)
	true if the point lies on the line segment and is between the endpoints.
template<class T >
bool	vgl_lineseg_test_lineseg (vgl_line_segment_2d< T > const &l1, vgl_line_segment_2d< T > const &l2)
	return true if the two linesegments meet.

---

Detailed Description

Author:

fsm

    Modifications
     Nov.2003 - Peter Vanroose - made all functions templated
     Sep.2005 - Peter Vanroose - bug fix: collinear line segments always "true"
     Mar.2008 - Ibrahim Eden - bug fix: bool vgl_lineseg_test_line(vgl_line_2d<T> const& l1,vgl_line_segment_2d<T> const& l2)
     Mar.2009 - Dirk Steckhan - bug fix in vgl_lineseg_test_point (missing sqrt)
   

Definition in file vgl_lineseg_test.h.

---

Define Documentation

#define VGL_LINESEG_TEST_INSTANTIATE

(

T

)

extern "please include vgl/vgl_lineseg_test.txx instead"

Definition at line 70 of file vgl_lineseg_test.h.

---

Function Documentation

template<class T >

export bool vgl_lineseg_test_line	(	T	x1,
		T	y1,
		T	x2,
		T	y2,
		T	x3,
		T	y3,
		T	x4,
		T	y4
	)

true if the line joining [1], [2] meets the linesegment joining [3], [4].

End points are considered to belong to a line segment.

Definition at line 14 of file vgl_lineseg_test.txx.

template<class T >

bool vgl_lineseg_test_line	(	vgl_line_2d< T > const &	l1,
		vgl_line_segment_2d< T > const &	l2
	)		[inline]

true if the line meets the linesegment.

End points are considered to belong to a line segment.

Definition at line 39 of file vgl_lineseg_test.h.

template<class T >

export bool vgl_lineseg_test_lineseg	(	T	x1,
		T	y1,
		T	x2,
		T	y2,
		T	x3,
		T	y3,
		T	x4,
		T	y4
	)

true if the linesegment joining [1], [2] meets the linesegment joining [3], [4].

End points are considered to belong to a line segment.

Definition at line 33 of file vgl_lineseg_test.txx.

template<class T >

bool vgl_lineseg_test_lineseg	(	vgl_line_segment_2d< T > const &	l1,
		vgl_line_segment_2d< T > const &	l2
	)		[inline]

return true if the two linesegments meet.

End points are considered to belong to a line segment.

Definition at line 61 of file vgl_lineseg_test.h.

template<class T >

bool vgl_lineseg_test_point	(	vgl_point_2d< T > const &	p,
		vgl_line_segment_2d< T > const &	lseg
	)

true if the point lies on the line segment and is between the endpoints.

Definition at line 88 of file vgl_lineseg_test.txx.