public void TestNormMap4()
{
double start = 315.0;
double stop = 225.0;
Assert.AreEqual(0.0, CircularMath.NormMap(start, stop, -45.0));
Assert.AreEqual(0.5, CircularMath.NormMap(start, stop, 90.0));
Assert.AreEqual(1.0, CircularMath.NormMap(start, stop, 225.0));
Assert.AreEqual(double.NaN, CircularMath.NormMap(start, stop, 230.0));
Assert.AreEqual(double.NaN, CircularMath.NormMap(start, stop, -55.0));
}
public void TestNormMap1()
{
double start = 0.0;
double stop = 180.0;
Assert.AreEqual(0.0, CircularMath.NormMap(start, stop, 0.0));
Assert.AreEqual(0.5, CircularMath.NormMap(start, stop, 90.0));
Assert.AreEqual(1.0, CircularMath.NormMap(start, stop, 180.0));
Assert.AreEqual(double.NaN, CircularMath.NormMap(start, stop, 190.0));
Assert.AreEqual(double.NaN, CircularMath.NormMap(start, stop, -10.0));
}
public void TestNormMap2()
{
double start = 90.0;
double stop = 270.0;
Assert.AreEqual(0.0, CircularMath.NormMap(start, stop, 90.0));
Assert.AreEqual(0.5, CircularMath.NormMap(start, stop, 180.0));
Assert.AreEqual(1.0, CircularMath.NormMap(start, stop, 270.0));
Assert.AreEqual(double.NaN, CircularMath.NormMap(start, stop, 280.0));
Assert.AreEqual(double.NaN, CircularMath.NormMap(start, stop, 80.0));
}
private void UpdateSelectorFromPoint(Point point)
{
// Calculate angle from point (0..360)
double angle = CircularMath.AngleFromPoint(point, CalculateCenter(this.ArcOffset));
// Convert to a normalized value between 0.0 and 1.0
double normAngle = CircularMath.NormMap(this.ArcStartAngle, this.ArcStopAngle, angle);
// And update the value
if (!double.IsNaN(normAngle))
{
double value = normAngle * (this.Maximum - this.Minimum) + this.Minimum;
this.Value = value;
UpdateSelector();
}
}