public void VarianceInsert()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(20f, 0f);
spline2D.AddControlPoint(b);
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(2, spline2D.Modes.Count);
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(12, spline2D.ControlPoints.Count);
TestHelpers.CheckFloat2(a, spline2D.GetPoint(0f, new half(0)));
TestHelpers.CheckFloat2(a, spline2D.GetControlPoint(0, SplinePointVariance.Point));
TestHelpers.CheckFloat2(a, spline2D.ControlPoints[0]);
TestHelpers.CheckFloat2(b, spline2D.GetPoint(1f, new half(0)));
TestHelpers.CheckFloat2(b, spline2D.GetControlPoint(1, SplinePointVariance.Point));
TestHelpers.CheckFloat2(b, spline2D.ControlPoints[9]);
//insert point
float2 c = new float2(10f, 0f);
spline2D.InsertControlPoint(1, c);
Assert.AreEqual(3, spline2D.ControlPointCount);
Assert.AreEqual(3, spline2D.Modes.Count);
Assert.AreEqual(2, spline2D.Times.Count);
Assert.AreEqual(21, spline2D.ControlPoints.Count);
TestHelpers.CheckFloat2(a, spline2D.ControlPoints[0]);
TestHelpers.CheckFloat2(c, spline2D.ControlPoints[9]);
TestHelpers.CheckFloat2(b, spline2D.ControlPoints[18]);
}
public void VarianceRemoveFromStart()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(1f, 0f);
spline2D.AddControlPoint(b);
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(2, spline2D.Modes.Count);
Assert.AreEqual(12, spline2D.ControlPoints.Count);
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(1f, spline2D.Length());
TestHelpers.CheckFloat2(a, spline2D.GetControlPoint(0, SplinePointVariance.Point));
TestHelpers.CheckFloat2(b, spline2D.GetControlPoint(1, SplinePointVariance.Point));
//Remove a point
spline2D.RemoveControlPoint(0);
Assert.AreEqual(1, spline2D.ControlPointCount);
Assert.AreEqual(1, spline2D.Modes.Count);
Assert.AreEqual(3, spline2D.ControlPoints.Count);
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(0f, spline2D.Length());
TestHelpers.CheckFloat2(b, spline2D.GetControlPoint(0, SplinePointVariance.Point));
}
public void VariancePointCreation()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = new float2(0f, 0f);
spline2D.AddControlPoint(a);
Assert.AreEqual(1, spline2D.ControlPointCount);
Assert.AreEqual(1, spline2D.Modes.Count);
Assert.AreEqual(3, spline2D.ControlPoints.Count);
TestHelpers.CheckFloat2(a, spline2D.GetControlPoint(0, SplinePointVariance.Point));
float2 b = new float2(10f, 0f);
spline2D.AddControlPoint(b);
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(2, spline2D.Modes.Count);
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(10f, spline2D.Length());
Assert.AreEqual(12, spline2D.ControlPoints.Count);
TestHelpers.CheckFloat2(a, spline2D.GetControlPoint(0, SplinePointVariance.Point));
TestHelpers.CheckFloat2(new float2(1f, 0f), spline2D.GetControlPoint(0, SplinePointVariance.Post));
TestHelpers.CheckFloat2(new float2(9f, 0f), spline2D.GetControlPoint(1, SplinePointVariance.Pre));
TestHelpers.CheckFloat2(b, spline2D.GetControlPoint(1, SplinePointVariance.Point));
}
public void VariancePoint3()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(2.5f, 0f);
spline2D.AddControlPoint(b);
float2 c = new float2(7.5f, 0f);
spline2D.AddControlPoint(c);
float2 d = new float2(10f, 0f);
spline2D.AddControlPoint(d);
Assert.AreEqual(4, spline2D.ControlPointCount);
Assert.AreEqual(4, spline2D.Modes.Count);
Assert.AreEqual(10f, spline2D.Length());
Assert.AreEqual(3, spline2D.Times.Count);
Assert.AreEqual(0.25f, spline2D.Times[0]);
Assert.AreEqual(0.75f, spline2D.Times[1]);
Assert.AreEqual(1f, spline2D.Times[2]);
TestHelpers.CheckFloat2(a, spline2D.GetPoint(0f, new half(0)));
TestHelpers.CheckFloat2(new float2(2.5f, 0f), spline2D.GetPoint(0.25f, new half(0)));
TestHelpers.CheckFloat2(new float2(5f, 0f), spline2D.GetPoint(0.5f, new half(0)));
TestHelpers.CheckFloat2(new float2(9.88f, 0f), spline2D.GetPoint(0.99f, new half(0)), 0.01f);
TestHelpers.CheckFloat2(d, spline2D.GetPoint(1f, new half(0)));
TestHelpers.CheckFloat2(d, spline2D.GetPoint(5f, new half(0)));
}
public void VarianceUpdate()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(1f, 0f);
spline2D.AddControlPoint(b);
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(2, spline2D.Modes.Count);
Assert.AreEqual(1, spline2D.Times.Count);
TestHelpers.CheckFloat2(a, spline2D.GetPoint(0f, new half(0)));
TestHelpers.CheckFloat2(a, spline2D.GetControlPoint(0, SplinePointVariance.Point));
TestHelpers.CheckFloat2(b, spline2D.GetPoint(1f, new half(0)));
TestHelpers.CheckFloat2(b, spline2D.GetControlPoint(1, SplinePointVariance.Point));
//update 0 point position
float2 a2 = new float2(-1f, -1f);
spline2D.UpdateControlPointLocal(0, a2, SplinePointVariance.Point);
TestHelpers.CheckFloat2(a2, spline2D.GetPoint(0f, new half(0)));
TestHelpers.CheckFloat2(a2, spline2D.GetControlPoint(0, SplinePointVariance.Point));
//update 1 point position
float2 b2 = new float2(2f, 2f);
spline2D.UpdateControlPointLocal(1, b2, SplinePointVariance.Point);
TestHelpers.CheckFloat2(b2, spline2D.GetPoint(1f, new half(0)));
TestHelpers.CheckFloat2(b2, spline2D.GetControlPoint(1, SplinePointVariance.Point));
}
public void VariancePoint2()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(1f, 0f);
spline2D.AddControlPoint(b);
float2 c = new float2(2f, 0f);
spline2D.AddControlPoint(c);
Assert.AreEqual(3, spline2D.ControlPointCount);
Assert.AreEqual(2f, spline2D.Length());
Assert.AreEqual(2, spline2D.Times.Count);
Assert.AreEqual(0.5f, spline2D.Times[0]);
Assert.AreEqual(1f, spline2D.Times[1]);
TestHelpers.CheckFloat2(a, spline2D.GetPoint(0f, new half(0)));
TestHelpers.CheckFloat2(new float2(1f, 0f), spline2D.GetPoint(0.5f, new half(0)));
//TestHelpers.CheckFloat2(c * 0.77f, spline.GetPoint(0.77f)); // fails due to bezier point bunching issues
}
public void VarianceLength()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
const float y = 18f;
float2 a = new float2(20f, y);
spline2D.AddControlPoint(a);
float2 b = new float2(40f, y);
spline2D.AddControlPoint(b);
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(20f, spline2D.Length());
Assert.AreEqual(20f, spline2D.Length(new half(-1f)));
Assert.AreEqual(20f, spline2D.Length(new half(1f)));
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(1f, spline2D.Times[0]);
float2 al = PositionAngle(a, 180f);
spline2D.UpdateControlPointLocal(0, al, SplinePointVariance.PointLeft);
float2 alPost = PositionAngle(al, 90f);
spline2D.UpdateControlPointLocal(0, alPost, SplinePointVariance.PostLeft);
float2 ar = PositionAngle(a, 0f);
spline2D.UpdateControlPointLocal(0, ar, SplinePointVariance.PointRight);
float2 arPost = PositionAngle(ar, 90f);
spline2D.UpdateControlPointLocal(0, arPost, SplinePointVariance.PostRight);
float2 bl = PositionAngle(b, 180f);
spline2D.UpdateControlPointLocal(1, bl, SplinePointVariance.PointLeft);
float2 blPre = PositionAngle(bl, -90f);
spline2D.UpdateControlPointLocal(1, blPre, SplinePointVariance.PreLeft);
float2 br = PositionAngle(b, 0);
spline2D.UpdateControlPointLocal(1, br, SplinePointVariance.PointRight);
float2 brPre = PositionAngle(br, -90f);
spline2D.UpdateControlPointLocal(1, brPre, SplinePointVariance.PreRight);
//check spline is still the same
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(20f, spline2D.Length());
Assert.AreEqual(20f, spline2D.Length(new half(-1f)));
Assert.AreEqual(20f, spline2D.Length(new half(1f)));
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(1f, spline2D.Times[0]);
}
public void VariancePoint5()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = new float2(1f, 10f);
spline2D.AddControlPoint(a);
float2 b = new float2(2f, 10f);
spline2D.AddControlPoint(b);
float2 c = new float2(3f, 10f);
spline2D.AddControlPoint(c);
Assert.AreEqual(3, spline2D.ControlPointCount);
Assert.IsTrue(Math.Abs(spline2D.Length() - 2f) < 0.00001f);
TestHelpers.CheckFloat2(new float2(2.5f, 10f), spline2D.GetPoint(0.7f, new half(0f)), 0.01f);
}
public void VariancePoint()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(1f, 0f);
spline2D.AddControlPoint(b);
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(1f, spline2D.Length());
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(1f, spline2D.Times[0]);
TestHelpers.CheckFloat2(new float2(0.5f, 0f), spline2D.GetPoint(0.5f, new half(0)));
}
public void VariancePointEnd()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(1f, 0f);
spline2D.AddControlPoint(b);
spline2D.UpdateControlPointLocal(0, new float2(0f, 1f), SplinePointVariance.PointLeft);
spline2D.UpdateControlPointLocal(0, new float2(0f, 1.1f), SplinePointVariance.PostLeft);
spline2D.UpdateControlPointLocal(1, new float2(1f, 0.9f), SplinePointVariance.PreLeft);
spline2D.UpdateControlPointLocal(1, new float2(1f, 1f), SplinePointVariance.PointLeft);
Assert.AreEqual(2, spline2D.ControlPointCount);
TestHelpers.CheckFloat2(new float2(1f, 1f), spline2D.GetPoint(1f, new half(-1)));
}
public void VariancePoint4()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = new float2(3f, 3f);
spline2D.AddControlPoint(a);
Assert.AreEqual(1, spline2D.ControlPointCount);
Assert.AreEqual(0f, spline2D.Length());
TestHelpers.CheckFloat2(new float2(3f, 3f), spline2D.GetPoint(0.5f, new half(0)));
}
public void VarianceUpdate3()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(1f, 0f);
spline2D.AddControlPoint(b);
float2 c = new float2(2f, 0f);
spline2D.AddControlPoint(c);
Assert.AreEqual(2f, spline2D.Length());
//update 1 point position
float2 b2 = new float2(1f, 2f);
spline2D.UpdateControlPointLocal(1, b2, SplinePointVariance.Point);
Assert.GreaterOrEqual(spline2D.Length(), 2f);
}
public void VarianceAdd2()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = float2.zero;
spline2D.AddControlPoint(a);
float2 b = new float2(1f, 0f);
spline2D.AddControlPoint(b);
float2 c = new float2(2f, 0f);
spline2D.AddControlPoint(c);
Assert.AreEqual(3, spline2D.ControlPointCount);
Assert.AreEqual(3, spline2D.Modes.Count);
Assert.AreEqual(2, spline2D.Times.Count);
Assert.AreEqual(2f, spline2D.Length());
TestHelpers.CheckFloat2(a, spline2D.GetControlPoint(0, SplinePointVariance.Point));
TestHelpers.CheckFloat2(b, spline2D.GetControlPoint(1, SplinePointVariance.Point));
TestHelpers.CheckFloat2(c, spline2D.GetControlPoint(2, SplinePointVariance.Point));
}
public void Variance()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
const float y = 2f;
float2 a = new float2(2f, y);
spline2D.AddControlPoint(a);
float2 b = new float2(4f, y);
spline2D.AddControlPoint(b);
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(2f, spline2D.Length());
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(1f, spline2D.Times[0]);
float2 al = PositionAngle(a, 180f);
spline2D.UpdateControlPointLocal(0, al, SplinePointVariance.PointLeft);
float2 alPost = PositionAngle(al, 90f);
spline2D.UpdateControlPointLocal(0, alPost, SplinePointVariance.PostLeft);
float2 ar = PositionAngle(a, 0f);
spline2D.UpdateControlPointLocal(0, ar, SplinePointVariance.PointRight);
float2 arPost = PositionAngle(ar, 90f);
spline2D.UpdateControlPointLocal(0, arPost, SplinePointVariance.PostRight);
float2 bl = PositionAngle(b, 180f);
spline2D.UpdateControlPointLocal(1, bl, SplinePointVariance.PointLeft);
float2 blPre = PositionAngle(bl, -90f);
spline2D.UpdateControlPointLocal(1, blPre, SplinePointVariance.PreLeft);
float2 br = PositionAngle(b, 0);
spline2D.UpdateControlPointLocal(1, br, SplinePointVariance.PointRight);
float2 brPre = PositionAngle(br, -90f);
spline2D.UpdateControlPointLocal(1, brPre, SplinePointVariance.PreRight);
//check spline is still the same
Assert.AreEqual(2, spline2D.ControlPointCount);
Assert.AreEqual(2f, spline2D.Length());
Assert.AreEqual(1, spline2D.Times.Count);
Assert.AreEqual(1f, spline2D.Times[0]);
//check updated points
Assert.AreEqual(alPost, spline2D.GetControlPoint(0, SplinePointVariance.PostLeft), "Point updated incorrectly");
Assert.AreEqual(arPost, spline2D.GetControlPoint(0, SplinePointVariance.PostRight), "Point updated incorrectly");
Assert.AreEqual(bl, spline2D.GetControlPoint(1, SplinePointVariance.PointLeft), "Point updated incorrectly");
Assert.AreEqual(blPre, spline2D.GetControlPoint(1, SplinePointVariance.PreLeft), "Point updated incorrectly");
Assert.AreEqual(br, spline2D.GetControlPoint(1, SplinePointVariance.PointRight), "Point updated incorrectly");
Assert.AreEqual(brPre, spline2D.GetControlPoint(1, SplinePointVariance.PreRight), "Point updated incorrectly");
TestHelpers.CheckFloat2(new float2(b.x - (a.x / 2f), y + 0f), spline2D.GetPoint(0.5f, new half(0)));
TestHelpers.CheckFloat2(new float2((b.x - (a.x / 2f)), y + -0.5f), spline2D.GetPoint(0.5f, new half(-0.5f)));
TestHelpers.CheckFloat2(new float2((b.x - (a.x / 2f)), y + 0.5f), spline2D.GetPoint(0.5f, new half(0.5f)));
TestHelpers.CheckFloat2(new float2((b.x - (a.x / 2f)), y + -1f), spline2D.GetPoint(0.5f, new half(-1)));
TestHelpers.CheckFloat2(new float2((b.x - (a.x / 2f)), y + 1f), spline2D.GetPoint(0.5f, new half(1)));
}
public void VariancePointArrayVerification()
{
IVarianceTestSpline2D spline2D = CreateVarianceSpline();
float2 a = new float2(10f, 10f);
spline2D.AddControlPoint(a);
float2 b = new float2(20f, 20f);
spline2D.AddControlPoint(b);
float2 c = new float2(30f, 30f);
spline2D.AddControlPoint(c);
Assert.AreEqual(3, spline2D.ControlPointCount);
Assert.AreEqual(21, spline2D.ControlPoints.Count);
float s = 1f;
// Point A
float2 aPost = a + new float2(s, 0f);
float2 aLeft = a + new float2(0f, s);
float2 aLeftPost = a + new float2(s, s);
float2 aRight = a + new float2(0f, -s);
float2 aRightPost = a + new float2(s, -s);
spline2D.UpdateControlPointLocal(0, aPost, SplinePointVariance.Post);
spline2D.UpdateControlPointLocal(0, aLeft, SplinePointVariance.PointLeft);
spline2D.UpdateControlPointLocal(0, aLeftPost, SplinePointVariance.PostLeft);
spline2D.UpdateControlPointLocal(0, aRight, SplinePointVariance.PointRight);
spline2D.UpdateControlPointLocal(0, aRightPost, SplinePointVariance.PostRight);
Assert.AreEqual(a, spline2D.GetControlPoint(0, SplinePointVariance.Point));
Assert.AreEqual(a, spline2D.ControlPoints[0]);
Assert.AreEqual(aLeft, spline2D.GetControlPoint(0, SplinePointVariance.PointLeft));
Assert.AreEqual(aLeft, spline2D.ControlPoints[1]);
Assert.AreEqual(aRight, spline2D.GetControlPoint(0, SplinePointVariance.PointRight));
Assert.AreEqual(aRight, spline2D.ControlPoints[2]);
Assert.AreEqual(aPost, spline2D.GetControlPoint(0, SplinePointVariance.Post));
Assert.AreEqual(aPost, spline2D.ControlPoints[3]);
Assert.AreEqual(aLeftPost, spline2D.GetControlPoint(0, SplinePointVariance.PostLeft));
Assert.AreEqual(aLeftPost, spline2D.ControlPoints[4]);
Assert.AreEqual(aRightPost, spline2D.GetControlPoint(0, SplinePointVariance.PostRight));
Assert.AreEqual(aRightPost, spline2D.ControlPoints[5]);
// Point B
float2 bPost = b + new float2(s, 0f);
float2 bPre = b + new float2(-s, 0f);
float2 bLeft = b + new float2(0f, s);
float2 bLeftPre = b + new float2(-s, s);
float2 bLeftPost = b + new float2(s, s);
float2 bRight = b + new float2(0f, -s);
float2 bRightPre = b + new float2(-s, -s);
float2 bRightPost = b + new float2(s, -s);
spline2D.UpdateControlPointLocal(1, bPre, SplinePointVariance.Pre);
spline2D.UpdateControlPointLocal(1, bPost, SplinePointVariance.Post);
spline2D.UpdateControlPointLocal(1, bLeft, SplinePointVariance.PointLeft);
spline2D.UpdateControlPointLocal(1, bLeftPre, SplinePointVariance.PreLeft);
spline2D.UpdateControlPointLocal(1, bLeftPost, SplinePointVariance.PostLeft);
spline2D.UpdateControlPointLocal(1, bRight, SplinePointVariance.PointRight);
spline2D.UpdateControlPointLocal(1, bRightPre, SplinePointVariance.PreRight);
spline2D.UpdateControlPointLocal(1, bRightPost, SplinePointVariance.PostRight);
Assert.AreEqual(bPre, spline2D.GetControlPoint(1, SplinePointVariance.Pre));
Assert.AreEqual(bPre, spline2D.ControlPoints[6]);
Assert.AreEqual(bLeftPre, spline2D.GetControlPoint(1, SplinePointVariance.PreLeft));
Assert.AreEqual(bLeftPre, spline2D.ControlPoints[7]);
Assert.AreEqual(bRightPre, spline2D.GetControlPoint(1, SplinePointVariance.PreRight));
Assert.AreEqual(bRightPre, spline2D.ControlPoints[8]);
Assert.AreEqual(b, spline2D.GetControlPoint(1, SplinePointVariance.Point));
Assert.AreEqual(b, spline2D.ControlPoints[9]);
Assert.AreEqual(bLeft, spline2D.GetControlPoint(1, SplinePointVariance.PointLeft));
Assert.AreEqual(bLeft, spline2D.ControlPoints[10]);
Assert.AreEqual(bRight, spline2D.GetControlPoint(1, SplinePointVariance.PointRight));
Assert.AreEqual(bRight, spline2D.ControlPoints[11]);
Assert.AreEqual(bPost, spline2D.GetControlPoint(1, SplinePointVariance.Post));
Assert.AreEqual(bPost, spline2D.ControlPoints[12]);
Assert.AreEqual(bLeftPost, spline2D.GetControlPoint(1, SplinePointVariance.PostLeft));
Assert.AreEqual(bLeftPost, spline2D.ControlPoints[13]);
Assert.AreEqual(bRightPost, spline2D.GetControlPoint(1, SplinePointVariance.PostRight));
Assert.AreEqual(bRightPost, spline2D.ControlPoints[14]);
// Point C
float2 cPre = c + new float2(-s, 0f);
float2 cLeft = c + new float2(0f, s);
float2 cLeftPre = c + new float2(s, s);
float2 cRight = c + new float2(0f, -s);
float2 cRightPre = c + new float2(s, -s);
spline2D.UpdateControlPointLocal(2, cPre, SplinePointVariance.Pre);
spline2D.UpdateControlPointLocal(2, cLeft, SplinePointVariance.PointLeft);
spline2D.UpdateControlPointLocal(2, cLeftPre, SplinePointVariance.PreLeft);
spline2D.UpdateControlPointLocal(2, cRight, SplinePointVariance.PointRight);
spline2D.UpdateControlPointLocal(2, cRightPre, SplinePointVariance.PreRight);
Assert.AreEqual(cPre, spline2D.GetControlPoint(2, SplinePointVariance.Pre));
Assert.AreEqual(cPre, spline2D.ControlPoints[15]);
Assert.AreEqual(cLeftPre, spline2D.GetControlPoint(2, SplinePointVariance.PreLeft));
Assert.AreEqual(cLeftPre, spline2D.ControlPoints[16]);
Assert.AreEqual(cRightPre, spline2D.GetControlPoint(2, SplinePointVariance.PreRight));
Assert.AreEqual(cRightPre, spline2D.ControlPoints[17]);
Assert.AreEqual(c, spline2D.GetControlPoint(2, SplinePointVariance.Point));
Assert.AreEqual(c, spline2D.ControlPoints[18]);
Assert.AreEqual(cLeft, spline2D.GetControlPoint(2, SplinePointVariance.PointLeft));
Assert.AreEqual(cLeft, spline2D.ControlPoints[19]);
Assert.AreEqual(cRight, spline2D.GetControlPoint(2, SplinePointVariance.PointRight));
Assert.AreEqual(cRight, spline2D.ControlPoints[20]);
}