Public Member Functions | Public Attributes
b2Vec2 Struct Reference

A 2D column vector. More...

#include <b2Math.h>

List of all members.

Public Member Functions

 b2Vec2 ()
 Default constructor does nothing (for performance).
 b2Vec2 (float32 x, float32 y)
 Construct using coordinates.
bool IsValid () const
 Does this vector contain finite coordinates?
float32 Length () const
 Get the length of this vector (the norm).
float32 LengthSquared () const
float32 Normalize ()
 Convert this vector into a unit vector. Returns the length.
float32 operator() (int32 i) const
 Read from and indexed element.
float32operator() (int32 i)
 Write to an indexed element.
void operator*= (float32 a)
 Multiply this vector by a scalar.
void operator+= (const b2Vec2 &v)
 Add a vector to this vector.
b2Vec2 operator- () const
 Negate this vector.
void operator-= (const b2Vec2 &v)
 Subtract a vector from this vector.
void Set (float32 x_, float32 y_)
 Set this vector to some specified coordinates.
void SetZero ()
 Set this vector to all zeros.
b2Vec2 Skew () const
 Get the skew vector such that dot(skew_vec, other) == cross(vec, other)

Public Attributes

float32 x
float32 y

Detailed Description

A 2D column vector.

Definition at line 53 of file b2Math.h.


Constructor & Destructor Documentation

b2Vec2::b2Vec2 ( ) [inline]

Default constructor does nothing (for performance).

Definition at line 56 of file b2Math.h.

b2Vec2::b2Vec2 ( float32  x,
float32  y 
) [inline]

Construct using coordinates.

Definition at line 59 of file b2Math.h.


Member Function Documentation

bool b2Vec2::IsValid ( ) const [inline]

Does this vector contain finite coordinates?

Definition at line 129 of file b2Math.h.

float32 b2Vec2::Length ( ) const [inline]

Get the length of this vector (the norm).

Definition at line 101 of file b2Math.h.

float32 b2Vec2::LengthSquared ( ) const [inline]

Get the length squared. For performance, use this instead of b2Vec2::Length (if possible).

Definition at line 108 of file b2Math.h.

float32 b2Vec2::Normalize ( ) [inline]

Convert this vector into a unit vector. Returns the length.

Definition at line 114 of file b2Math.h.

float32 b2Vec2::operator() ( int32  i) const [inline]

Read from and indexed element.

Definition at line 71 of file b2Math.h.

float32& b2Vec2::operator() ( int32  i) [inline]

Write to an indexed element.

Definition at line 77 of file b2Math.h.

void b2Vec2::operator*= ( float32  a) [inline]

Multiply this vector by a scalar.

Definition at line 95 of file b2Math.h.

void b2Vec2::operator+= ( const b2Vec2 v) [inline]

Add a vector to this vector.

Definition at line 83 of file b2Math.h.

b2Vec2 b2Vec2::operator- ( ) const [inline]

Negate this vector.

Definition at line 68 of file b2Math.h.

void b2Vec2::operator-= ( const b2Vec2 v) [inline]

Subtract a vector from this vector.

Definition at line 89 of file b2Math.h.

void b2Vec2::Set ( float32  x_,
float32  y_ 
) [inline]

Set this vector to some specified coordinates.

Definition at line 65 of file b2Math.h.

void b2Vec2::SetZero ( ) [inline]

Set this vector to all zeros.

Definition at line 62 of file b2Math.h.

b2Vec2 b2Vec2::Skew ( ) const [inline]

Get the skew vector such that dot(skew_vec, other) == cross(vec, other)

Definition at line 135 of file b2Math.h.


Member Data Documentation

Definition at line 140 of file b2Math.h.

Definition at line 140 of file b2Math.h.


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


mvsim
Author(s):
autogenerated on Thu Sep 7 2017 09:27:49