Box2D: b2Sweep Struct Reference

Box2D

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b2Sweep Struct Reference

This describes the motion of a body/shape for TOI computation. More...

List of all members.

Public Member Functions

void GetXForm (b2XForm *xf, float32 t) const
 Get the interpolated transform at a specific time.
void Advance (float32 t)
 Advance the sweep forward, yielding a new initial state.

Public Attributes

b2Vec2 localCenter
 local center of mass position
b2Vec2 c
 center world positions
float32 a
 world angles
float32 t0
 time interval = [t0,1], where t0 is in [0,1]

Detailed Description

This describes the motion of a body/shape for TOI computation.

Shapes are defined with respect to the body origin, which may no coincide with the center of mass. However, to support dynamics we must interpolate the center of mass position.

Member Function Documentation

void b2Sweep::GetXForm ( b2XForm *  xf,
float32  t 
) const

Get the interpolated transform at a specific time.

Parameters:
t the normalized time in [0,1].

void b2Sweep::Advance ( float32  t  ) 

Advance the sweep forward, yielding a new initial state.

Parameters:
t the new initial time.

The documentation for this struct was generated from the following files:
  • b2Math.h
  • b2Math.cpp
Generated on Sun Apr 13 15:21:27 2008 for Box2D by  doxygen 1.5.4

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