public override ASSPointF GetPointF(double t)
{
List <ASSPointF> tmp = new List <ASSPointF>();
while (tmp.Count < 10)
{
ASSPointF p = OriginalCurve.GetPointF(Common.RandomDouble(rnd, t - BlurRange, t + BlurRange));
if (p != null)
{
tmp.Add(p);
}
}
ASSPointF pt = new ASSPointF {
X = 0, Y = 0, T = t
};
foreach (ASSPointF tmppt in tmp)
{
pt.X += tmppt.X;
pt.Y += tmppt.Y;
}
pt.X /= (double)tmp.Count;
pt.Y /= (double)tmp.Count;
return(pt);
}
/// <summary>
/// Compute specfied index key tangents.
/// </summary>
/// <param name="idx"></param>
public void ComputeTangents(int keyIndex)
{
if (keyIndex < 0 || keyIndex > keys.Count || keyIndex > Int32.MaxValue - 2)
{
throw new ArgumentOutOfRangeException("keyIndex");
}
// Compute neighbors tangents too.
for (int i = keyIndex - 1; i < keyIndex + 2; ++i)
{
if (i >= 0 && i < keys.Count)
{
EditCurveKey key = keys[i];
MarkModify(key);
float tangentInValue = key.TangentIn;
float tangentOutValue = key.TangentOut;
CurveTangent tangentIn = Convert(key.TangentInType);
CurveTangent tangentOut = Convert(key.TangentOutType);
OriginalCurve.ComputeTangent(i, tangentIn, tangentOut);
if (Single.IsNaN(key.TangentIn))
{
key.TangentIn = 0.0f;
}
if (Single.IsNaN(key.TangentOut))
{
key.TangentOut = 0.0f;
}
// Restore original value if EditCurveTanget is fixed.
if (key.TangentInType == EditCurveTangent.Fixed)
{
key.TangentIn = tangentInValue;
}
if (key.TangentOutType == EditCurveTangent.Fixed)
{
key.TangentOut = tangentOutValue;
}
}
}
}
/// <summary>
/// Evaluate this curve at given position.
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public float Evaluate(float position)
{
return(OriginalCurve.Evaluate(position));
}
