public void TestFitting()
{
// Make a sinus between T = 0s to 10s at 60 FPS
var animationChannel = new AnimationChannel();
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.Zero, Value = 0.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(10.0), Value = 0.0f
});
var maxErrorThreshold = 0.05f;
var timeStep = CompressedTimeSpan.FromSeconds(1.0f / 60.0f);
Func <CompressedTimeSpan, float> curve = x =>
{
if (x.Ticks == 196588)
{
}
return((float)Math.Sin(x.Ticks / (double)CompressedTimeSpan.FromSeconds(10.0).Ticks *Math.PI * 2.0));
};
animationChannel.Fitting(
curve,
CompressedTimeSpan.FromSeconds(1.0f / 60.0f),
maxErrorThreshold);
var evaluator = new AnimationChannel.Evaluator(animationChannel.KeyFrames);
for (var time = CompressedTimeSpan.Zero; time < CompressedTimeSpan.FromSeconds(10.0); time += timeStep)
{
var diff = Math.Abs(curve(time) - evaluator.Evaluate(time));
Assert.That(diff, Is.LessThanOrEqualTo(maxErrorThreshold));
}
}
public void TestFitting()
{
// Make a sinus between T = 0s to 10s at 60 FPS
var animationChannel = new AnimationChannel();
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.Zero, Value = 0.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(10.0), Value = 0.0f });
var maxErrorThreshold = 0.05f;
var timeStep = CompressedTimeSpan.FromSeconds(1.0f / 60.0f);
Func<CompressedTimeSpan, float> curve = x =>
{
if (x.Ticks == 196588)
{
}
return (float)Math.Sin(x.Ticks / (double)CompressedTimeSpan.FromSeconds(10.0).Ticks * Math.PI * 2.0);
};
animationChannel.Fitting(
curve,
CompressedTimeSpan.FromSeconds(1.0f / 60.0f),
maxErrorThreshold);
var evaluator = new AnimationChannel.Evaluator(animationChannel.KeyFrames);
for (var time = CompressedTimeSpan.Zero; time < CompressedTimeSpan.FromSeconds(10.0); time += timeStep)
{
var diff = Math.Abs(curve(time) - evaluator.Evaluate(time));
Assert.That(diff, Is.LessThanOrEqualTo(maxErrorThreshold));
}
}
public void TestDiscontinuity()
{
var animationChannel = new AnimationChannel();
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.Zero, Value = 0.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(1.0), Value = 0.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(1.0), Value = 0.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(1.0), Value = 1.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(1.0), Value = 1.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(2.0), Value = 1.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(2.0), Value = 1.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(2.0), Value = 0.0f
});
animationChannel.KeyFrames.Add(new KeyFrameData <float> {
Time = CompressedTimeSpan.FromSeconds(2.0), Value = 0.0f
});
var evaluator = new AnimationChannel.Evaluator(animationChannel.KeyFrames);
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(0.0)), Is.EqualTo(0.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(0.999999)), Is.EqualTo(0.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(1.0)), Is.EqualTo(1.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(1.000001)), Is.EqualTo(1.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(1.999999)), Is.EqualTo(1.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(2.0)), Is.EqualTo(0.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(2.000001)), Is.EqualTo(0.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(2.5)), Is.EqualTo(0.0f));
}
public void TestDiscontinuity()
{
var animationChannel = new AnimationChannel();
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.Zero, Value = 0.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(1.0), Value = 0.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(1.0), Value = 0.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(1.0), Value = 1.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(1.0), Value = 1.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(2.0), Value = 1.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(2.0), Value = 1.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(2.0), Value = 0.0f });
animationChannel.KeyFrames.Add(new KeyFrameData<float> { Time = CompressedTimeSpan.FromSeconds(2.0), Value = 0.0f });
var evaluator = new AnimationChannel.Evaluator(animationChannel.KeyFrames);
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(0.0)), Is.EqualTo(0.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(0.999999)), Is.EqualTo(0.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(1.0)), Is.EqualTo(1.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(1.000001)), Is.EqualTo(1.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(1.999999)), Is.EqualTo(1.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(2.0)), Is.EqualTo(0.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(2.000001)), Is.EqualTo(0.0f));
Assert.That(evaluator.Evaluate(CompressedTimeSpan.FromSeconds(2.5)), Is.EqualTo(0.0f));
}
