public void TestInterpolationStartAndEnd() {
var fromTime = 1;
var fromValue = 2;
var fromTangent = 3;
var toTime = 4;
var toValue = 5;
var toTangent = 6;
Assert.AreEqual(fromValue,
InterpolatorWithTangents.InterpolateFloats(
fromTime, fromValue, fromTangent,
toTime, toValue, toTangent,
fromTime));
Assert.AreEqual(toValue,
InterpolatorWithTangents.InterpolateFloats(
fromTime, fromValue, fromTangent,
toTime, toValue, toTangent,
toTime));
}
public void TestLinearInterpolation() {
var fromTime = 1;
var fromValue = 2;
var fromTangent = 0;
var toTime = 3;
var toValue = 4;
var toTangent = 0;
var n = 100;
for (var i = 0; i < n; ++i) {
var progress = 1f * i / n;
var expectedValue = fromValue * (1 - progress) + toValue * progress;
var actualValue =
InterpolatorWithTangents.InterpolateFloats(
fromTime, fromValue, fromTangent, toTime, toValue, toTangent,
fromTime * (1 - progress) + toTime * progress);
Assert.AreEqual(expectedValue, actualValue, .001);
}
}