Package org.jbox2d.collision

Class Distance.Simplex

java.lang.Object

org.jbox2d.collision.Distance.Simplex

Enclosing class:

Distance

private class Distance.Simplex
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private Vec2	case2
private Vec2	case22
private Vec2	case3
private Vec2	case33
private Vec2	e12
private Vec2	e13
private Vec2	e23
int	m_count
Distance.SimplexVertex	m_v1
Distance.SimplexVertex	m_v2
Distance.SimplexVertex	m_v3
Distance.SimplexVertex[]	vertices
private Vec2	w1
private Vec2	w2
private Vec2	w3

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Simplex()

Method Summary

Modifier and Type	Method	Description
void	getClosestPoint(Vec2 out)	this returns pooled objects.
float	getMetric()
void	getSearchDirection(Vec2 out)
void	getWitnessPoints(Vec2 pA, Vec2 pB)
void	readCache(Distance.SimplexCache cache, Distance.DistanceProxy proxyA, Transform transformA, Distance.DistanceProxy proxyB, Transform transformB)
void	solve2()	Solve a line segment using barycentric coordinates.
void	solve3()	Solve a line segment using barycentric coordinates. Possible regions: - points[2] - edge points[0]-points[2] - edge points[1]-points[2] - inside the triangle
void	writeCache(Distance.SimplexCache cache)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

m_v1

public final Distance.SimplexVertex m_v1

m_v2

public final Distance.SimplexVertex m_v2

m_v3

public final Distance.SimplexVertex m_v3

vertices

public final Distance.SimplexVertex[] vertices

m_count

public int m_count

e12

private final Vec2 e12

case2

private final Vec2 case2

case22

private final Vec2 case22

case3

private final Vec2 case3

case33

private final Vec2 case33

e13

private final Vec2 e13

e23

private final Vec2 e23

w1

private final Vec2 w1

w2

private final Vec2 w2

w3

private final Vec2 w3

Constructor Detail

Simplex

private Simplex()

Method Detail

readCache

public void readCache(Distance.SimplexCache cache,
                      Distance.DistanceProxy proxyA,
                      Transform transformA,
                      Distance.DistanceProxy proxyB,
                      Transform transformB)

writeCache

public void writeCache(Distance.SimplexCache cache)

getSearchDirection

public final void getSearchDirection(Vec2 out)

getClosestPoint

public void getClosestPoint(Vec2 out)

this returns pooled objects. don't keep or modify them

getWitnessPoints

public void getWitnessPoints(Vec2 pA,
                             Vec2 pB)

getMetric

public float getMetric()

solve2

public void solve2()

Solve a line segment using barycentric coordinates.

solve3

public void solve3()

Solve a line segment using barycentric coordinates.
Possible regions:
- points[2]
- edge points[0]-points[2]
- edge points[1]-points[2]
- inside the triangle