b2Transform Struct Reference

#include <b2Math.h>

List of all members.

Public Member Functions
	b2Transform ()
	The default constructor does nothing (for performance).
	b2Transform (const b2Vec2 &position, const b2Mat22 &R)
	Initialize using a position vector and a rotation matrix.
void	SetIdentity ()
	Set this to the identity transform.
void	Set (const b2Vec2 &p, float32 angle)
	Set this based on the position and angle.
float32	GetAngle () const
	Calculate the angle that the rotation matrix represents.
Public Attributes
b2Vec2	position
b2Mat22	R

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Detailed Description

A transform contains translation and rotation. It is used to represent the position and orientation of rigid frames.

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Constructor & Destructor Documentation

b2Transform::b2Transform

(

)

[inline]

The default constructor does nothing (for performance).

b2Transform::b2Transform	(	const b2Vec2 &	position,
		const b2Mat22 &	R
	)			[inline]

Initialize using a position vector and a rotation matrix.

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Member Function Documentation

float32 b2Transform::GetAngle

(

)

const [inline]

Calculate the angle that the rotation matrix represents.

void b2Transform::Set	(	const b2Vec2 &	p,
		float32	angle
	)			[inline]

Set this based on the position and angle.

void b2Transform::SetIdentity

(

)

[inline]

Set this to the identity transform.

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Member Data Documentation

b2Vec2 b2Transform::position

b2Mat22 b2Transform::R

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The documentation for this struct was generated from the following file:

• Box2D/Box2D/Common/b2Math.h