public void It_Returns_Parameter_At_The_Given_Length(double segmentLength, double tValueExpected)
{
// Arrange
NurbsBase curve = NurbsCurveCollection.PlanarCurveDegreeThree();
// Act
double parameter = curve.ParameterAtLength(segmentLength);
// Assert
parameter.Should().BeApproximately(tValueExpected, GSharkMath.MinTolerance);
}
public void It_Returns_Parameter_At_The_Given_Length_Of_A_Bezier()
{
// Arrange
NurbsBase curve = NurbsCurveCollection.PlanarCurveDegreeThree();
double[] tValuesExpected = new[] { 0, 0.122941, 0.265156, 0.420293, 0.579707, 0.734844, 0.877059, 1 };
int steps = 7;
double length = curve.Length / steps;
double sumLengths = 0.0;
for (int i = 0; i < steps + 1; i++)
{
// Act
double t = curve.ParameterAtLength(sumLengths);
double segmentLength = curve.LengthAt(t);
// Assert
t.Should().BeApproximately(tValuesExpected[i], GSharkMath.MaxTolerance);
segmentLength.Should().BeApproximately(sumLengths, GSharkMath.MaxTolerance);
sumLengths += length;
}
}