public override void Enlarge(Rectangle r)
{
r.Add((int)(_x0 + 0.5), (int)(_y0 + 0.5));
r.Add((int)(_x1 + 0.5), (int)(_y1 + 0.5));
}
public override void Enlarge(Rectangle r)
{
r.Add((int)(_x0 + .5),
(int)(_y0 + .5));
double[] eqn = { _xcoeff1, 2 * _xcoeff2, 3 * _xcoeff3 };
int numroots = QuadCurve.SolveQuadratic(eqn, eqn);
for (int i = 0; i < numroots; i++)
{
double t = eqn[i];
if (t > 0 && t < 1)
{
r.Add((int)(XforT(t) + .5), (int)(YforT(t) + .5));
}
}
r.Add((int)(_x1 + .5), (int)(_y1 + .5));
}
public override void Enlarge(Rectangle r)
{
r.Add((int)(_x0 + 0.5), (int)(_y0 + 0.5));
double t = -_xcoeff1 / (2 * _xcoeff2);
if (t > 0 && t < 1)
{
r.Add((int)(XforT(t) + .5), (int)(YforT(t) + .5));
}
r.Add((int)(_x1 + 0.5), (int)(_y1 + 0.5));
}
