Figure Class Reference

To store and treat a figure (or shape) information. More...

Inheritance diagram for Figure:

Public Member Functions
	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.
virtual real_t	getSignedDistance (const Point< real_t > &p) const
	Return signed distance from a given point to current figure. More...
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 figure (or shape) information.

This class is essentially useful to construct data for mesh generators and for distance calculations.

Author

Rachid Touzani

Copyright

GNU Lesser Public License

Member Function Documentation

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

virtual

Return signed distance from a given point to current figure.

Parameters

[in]

p

Point instance from which distance is computed

Reimplemented in Polygon, Triangle, Ellipse, Sphere, Circle, Brick, and Rectangle.

void getSignedDistance	(	const Grid &	g,
		Vect< real_t > &	d
	)		const

Calculate signed distance to current figure with respect to grid points.

Parameters

[in]	g	Grid instance
[in]	d	Vect instance containing calculated distance from each grid index to Figure

Remarks

Vector d doesn't need to be sized before invoking this function

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.

Parameters

[in]	p	Point for which distance is computed
[in]	a	First vertex of line
[in]	b	Second vertex of line

Returns

Signed distance