/// <summary>
/// If the value is below the interval, this will return -1, if it is above
/// the interval this will return 1 and 0 otherwise. Note that the interval has a
/// closed interval semantics, i.e. interval = [a,b].
/// WARNING: Never use this extension like this: 1.0.CompareTo(interval), since if the value is negative
/// the sign (if there is one) will not be passed to the extension method leading to unexpected results.
/// </summary>
public static int CompareToInterval(this float @this, Interval <float> interval)
{
if (@this.BelowInterval(interval))
{
return(-1);
}
return(@this.AboveInterval(interval) ? 1 : 0);
}
/// <summary>
/// Attempts to find an evaluator. The only Time this will return null is when
/// the value x is within the XInterval of the composite evaluator but there is
/// no evaluator within the interval that contains x.
/// </summary>
IEvaluator FindEvaluator(float x)
{
int evCount = Evaluators.Count;
if (x.InInterval(XInterval))
{
return(FindInternalEvaluator(x));
}
if (x.AboveInterval(XInterval))
{
return(Evaluators[evCount - 1]);
}
return(x.BelowInterval(XInterval) ? Evaluators[0] : null);
}
KeyValuePair <IEvaluator, IEvaluator> FindLeftAndRightInterpolators(float x)
{
int evCount = Evaluators.Count;
IEvaluator lev = null;
IEvaluator rev = null;
for (int i = 0; i < evCount - 1; i++)
{
lev = Evaluators[i];
rev = Evaluators[i + 1];
if (x.AboveInterval(lev.XInterval) &&
x.BelowInterval(rev.XInterval))
{
break;
}
}
return(new KeyValuePair <IEvaluator, IEvaluator>(lev, rev));
}
public void FloatAboveIntervalTests(float value, Interval <float> interval, bool expected)
{
Assert.That(value.AboveInterval(interval), Is.EqualTo(expected));
}