public void ComparePositionToQuadratic()
{
QuadraticBezier2f quadratic = new QuadraticBezier2f();
quadratic.C0 = new Vector2f(0.027f, 0.065f);
quadratic.C1 = new Vector2f(1.234f, 0.012f);
quadratic.C2 = new Vector2f(0.816f, 1.298f);
Bezier2f bezier = new Bezier2f(2);
bezier.Control[0] = quadratic.C0;
bezier.Control[1] = quadratic.C1;
bezier.Control[2] = quadratic.C2;
int count = 8;
for (int i = 0; i < count; i++)
{
float t = i / (count - 1.0f);
Vector2f p0 = quadratic.Position(t);
Vector2f p1 = bezier.Position(t);
Assert.AreEqual(Math.Round(p0.x, PRECISION), Math.Round(p1.x, PRECISION));
Assert.AreEqual(Math.Round(p0.y, PRECISION), Math.Round(p1.y, PRECISION));
}
}
public void Split()
{
Bezier2f bezier = new Bezier2f(3);
bezier.Control[0] = new Vector2f(0.0f, 0.0f);
bezier.Control[1] = new Vector2f(0.0f, 2.5f);
bezier.Control[2] = new Vector2f(2.5f, 5.0f);
bezier.Control[3] = new Vector2f(5, 5);
float split = 0.5f;
Bezier2f b0, b1;
bezier.Split(split, out b0, out b1);
Assert.AreEqual(bezier.Degree, b0.Degree);
Assert.AreEqual(bezier.Degree, b1.Degree);
Assert.AreEqual(bezier.Control[0], b0.Control[0]);
Assert.AreEqual(bezier.Control[3], b1.Control[3]);
Vector2f p = bezier.Position(split);
Assert.AreEqual(p, b0.Control[3]);
Assert.AreEqual(p, b1.Control[0]);
Assert.AreEqual(Math.Round(bezier.Length(100), 4), Math.Round(b0.Length(50) + b1.Length(50), 4));
}