Scales2 Class Reference

A scale is defined as the difference between two discs. More...

#include <scales.h>

Public Member Functions
	Scales2 (const Circle2 &, const Circle2 &)
	Create a scale as the difference of two spheres.
Scales2	Translated (const Vector2 &) const
	Translate a scale.
Scales2	Rotated (const Matrix2 &) const
	Return a scale rotated by a given matrix.
Box2	GetBox () const
	Compute the bouding box.
double	Signed (const Vector2 &) const
	Compute the signed distance between the scale and a point.
double	R (const Vector2 &) const
	Compute the squared distance between the scale and a point.
Vector2	Normal (const Vector2 &) const
	Compute the distance vector.

Protected Attributes
Disc2	cut
	Sphere and the cutting sphere

Detailed Description

A scale is defined as the difference between two discs.

See also

Lens

Constructor & Destructor Documentation

Scales2()

Scales2::Scales2	(	const Circle2 &	a,
		const Circle2 &	b )

Create a scale as the difference of two spheres.

Parameters

a,b	Sphere and cutting sphere (the radius of the cutting sphere should be larger).

Member Function Documentation

GetBox()

Box2 Scales2::GetBox

(

)

const

Compute the bouding box.

Calls Scales2::GetCylinder()

Normal()

Vector2 Scales2::Normal

(

const Vector2 &

p

)

const

Compute the distance vector.

Parameters

p

Point.

R()

double Scales2::R

(

const Vector2 &

p

)

const

Compute the squared distance between the scale and a point.

Parameters

p

Point.

Rotated()

Scales2 Scales2::Rotated

(

const Matrix2 &

r

)

const

Return a scale rotated by a given matrix.

Parameters

r	Rotation matrix.

Signed()

double Scales2::Signed

(

const Vector2 &

p

)

const

Compute the signed distance between the scale and a point.

Parameters

p

Point.

Translated()

Scales2 Scales2::Translated

(

const Vector2 &

t

)

const

Translate a scale.

Parameters

t	Translation vector.