code: public static void fineToPixel (
          MisoSceneMetrics metrics, int x, int y, Point ppos)
      {
          ppos.x = metrics.tilehwid + ((x - y) * metrics.finehwid);
          ppos.y = (x + y) * metrics.finehhei;
      }
docs: Convert the given fine coordinates to pixel coordinates within
  the containing tile.  Converted coordinates are placed in the
  given point object.
  
  @param x the x-position fine coordinate.
  @param y the y-position fine coordinate.
  @param ppos the point object to place coordinates in.