4 * A class which is used to compute and save information during the
5 * gravity computation phase.
10 * Body to skip in force evaluation
14 * Point at which to evaluate field
16 public MathVector pos0;
18 * Computed potential at pos0
22 * computed acceleration at pos0
24 public MathVector acc0;
28 * @param b the body object
29 * @param p a vector that represents the body
31 public HG(Body b, MathVector p)
34 pos0 = (MathVector)p.clone();
36 acc0 = new MathVector();