getJointTranslation method
Implementation
double getJointTranslation() {
final pA = Vector2.zero();
final pB = Vector2.zero();
final axis = Vector2.zero();
pA.setFrom(bodyA.worldPoint(localAnchorA));
pB.setFrom(bodyB.worldPoint(localAnchorB));
axis.setFrom(bodyA.worldVector(localXAxisA));
pB.sub(pA);
final translation = pB.dot(axis);
return translation;
}