private static void KeepPointAngle(GenericPosture posture, GenericPostureImpactKeepAngle impact)
{
// The point is moved so that the angle between its leg and the other leg is kept.
if (impact == null)
{
return;
}
PointF origin = posture.PointList[impact.Origin];
PointF leg1 = posture.PointList[impact.Leg1];
if (origin == leg1)
{
return;
}
PointF result = GeometryHelper.GetPointAtAngleAndDistance(origin, leg1, impact.OldAngle, impact.OldDistance);
posture.PointList[impact.Leg2] = result;
}