static public boolean clockwise(CoordinateSeq points)
{
int i2 = maxPoint(points);
int i1 = (i2 == 0) ? points.size() - 1 : i2 - 1;
int i3 = (i2 == (points.size() - 1)) ? 0 : i2 + 1;
Angle angle = new Angle(points.getCoordinate(i1)
, points.getCoordinate(i2), points.getCoordinate(i3));
int i = angle.clockwise();
if (i == 1)
return false;
else if (i == -1)
return true;
else