vgl_triangle_test.h File Reference

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Macros
#define	VGL_TRIANGLE_TEST_INSTANTIATE(T)   extern "please include vgl/vgl_triangle_test.hxx instead"

Functions
template<class T >
T	vgl_triangle_test_discriminant (T x1, T y1, T x2, T y2, T x3, T y3)
	Compute discriminant function. More...
template<class T >
bool	vgl_triangle_test_inside (T x1, T y1, T x2, T y2, T x3, T y3, T x, T y)
	Function returns true if (x, y) is inside, or on the boundary of triangle. More...

Detailed Description

Author

fsm

  Modifications
   Nov.2003 - Peter Vanroose - made functions templated

Definition in file vgl_triangle_test.h.

Macro Definition Documentation

VGL_TRIANGLE_TEST_INSTANTIATE

#define VGL_TRIANGLE_TEST_INSTANTIATE

(

T

)

extern "please include vgl/vgl_triangle_test.hxx instead"

Definition at line 33 of file vgl_triangle_test.h.

Function Documentation

vgl_triangle_test_discriminant()

template<class T >

T vgl_triangle_test_discriminant	(	T	x1,
		T	y1,
		T	x2,
		T	y2,
		T	x3,
		T	y3
	)

Compute discriminant function.

Returns determinant of

 [ x1 x2 x3 ]
 [ y1 y2 y3 ]
 [ 1  1  1  ]

Definition at line 11 of file vgl_triangle_test.hxx.

vgl_triangle_test_inside()

template<class T >

bool vgl_triangle_test_inside	(	T	x1,
		T	y1,
		T	x2,
		T	y2,
		T	x3,
		T	y3,
		T	x,
		T	y
	)

Function returns true if (x, y) is inside, or on the boundary of triangle.

The triangle whose vertices are (xi, yi), i=1,2,3.

Definition at line 19 of file vgl_triangle_test.hxx.