Triangle Class Reference

To store and treat a triangle. More...

Inheritance diagram for Triangle:

Public Member Functions
	Triangle ()
	Default constructor. More...
	Triangle (const Point< real_t > &v1, const Point< real_t > &v2, const Point< real_t > &v3, int code=1)
	Constructor with vertices and code. More...
void	setVertex1 (const Point< real_t > &v)
	Assign first vertex of triangle.
void	setVertex2 (const Point< real_t > &v)
	Assign second vertex of triangle.
void	setVertex3 (const Point< real_t > &v)
	Assign third vertex of triangle.
real_t	getSignedDistance (const Point< real_t > &p) const
	Return signed distance of a given point from the current triangle. More...
Triangle &	operator+= (Point< real_t > a)
	Operator +=. More...
Triangle &	operator+= (real_t a)
	Operator *=. More...
Public Member Functions inherited from Figure
	Figure ()
	Default constructor.
	Figure (const Figure &f)
	Copy constructor.
virtual	~Figure ()
	Destructor.
void	setCode (int code)
	Choose a code for the domain defined by the figure.
Figure &	operator= (const Figure &f)
	Operator =.
void	getSignedDistance (const Grid &g, Vect< real_t > &d) const
	Calculate signed distance to current figure with respect to grid points. More...
real_t	dLine (const Point< real_t > &p, const Point< real_t > &a, const Point< real_t > &b) const
	Compute signed distance from a line. More...

Detailed Description

To store and treat a triangle.

Constructor & Destructor Documentation

Triangle

(

)

Default constructor.

Constructs a unit triangle with vertices (0,0), (1,0) and (0,1)

Triangle	(	const Point< real_t > &	v1,
		const Point< real_t > &	v2,
		const Point< real_t > &	v3,
		int	code = 1
	)

Constructor with vertices and code.

Parameters

[in]	v1	Coordinates of first vertex of triangle
[in]	v2	Coordinates of second vertex of triangle
[in]	v3	Coordinates of third vertex of triangle
[in]	code	Code to assign to the generated figure [Default: 1]

Remarks

Vertices must be given in couterclockwise order

Member Function Documentation

real_t getSignedDistance ( const Point< real_t > &  p ) const

virtual

Return signed distance of a given point from the current triangle.

The computed distance is negative if p lies in the triangle, positive if it is outside, and 0 on its boundary

Parameters

[in]

p

Point<double> instance

Reimplemented from Figure.

Triangle& operator+=

(

Point< real_t >

a

)

Operator +=.

Translate triangle by a vector a

Triangle& operator+=

(

real_t

a

)

Operator *=.

Scale triangle by a factor a