updateAnchorPoints method
void
updateAnchorPoints()
Update all the anchor points.a
Implementation
void updateAnchorPoints() {
relativeAnchorPoint1..setFrom( localAnchorPoint1 )..applyMatrix3Transpose(body1!.rotation );
relativeAnchorPoint2..setFrom(localAnchorPoint2 )..applyMatrix3Transpose(body2!.rotation );
anchorPoint1.add2( relativeAnchorPoint1, body1!.position );
anchorPoint2.add2( relativeAnchorPoint2, body2!.position );
}