private ICoordinate CircleMiddlefier(ICoordinate circle1, double radius1, ICoordinate circle2, double radius2)
{
var distance = _euclidean.Distance(new[] { circle1.X, circle1.Z }, new[] { circle2.X, circle2.Z });
var s = Math.Pow(radius1, 2) - Math.Pow(radius2, 2) + Math.Pow(distance, 2);
var bf = s / (2 * distance);
var verticalDistance = circle2.Z - circle1.Z;
var fHeight = (verticalDistance * bf) / distance;
var horizontalDistance = Math.Sqrt(Math.Pow(bf, 2) - Math.Pow(fHeight, 2));
return(new Coordinate(circle1.X + horizontalDistance, circle1.Z + fHeight, 0));
}
public void EuclideanDistance(double[] x, double[] y, double expected)
{
var result = Euclidean.Distance(x, y);
result = Math.Truncate(result * 100) / 100;
Assert.Equal(expected, result);
}
public void EuclideanCase()
{
var result1 = Euclidean.Distance(new double[] { 0, 0 }, new double[] { 1, 0 });
var result2 = Euclidean.Distance(new double[] { 0, 0 }, new double[] { 3, 2 });
var result3 = Euclidean.Distance(new double[] { -7, -4, 3 }, new double[] { 17, 6, 2.5 });
var result4 = Euclidean.Distance(new double[] { 5, 13, 17, 3, 25, 21, 7, 1 }, new double[] { 20, 26, 7, 5, 28, 3, 23, 10 });
}
public bool GetAcceleration(ICoordinate currentCoordinate, DateTime timeStamp, out double acceleration)
{
if (GeneratedCoordinate.Count >= 2)
{
var historics = GeneratedCoordinate.Skip(Math.Max(0, GeneratedCoordinate.Count() - 2)).ToArray();
var historicOne = historics[1];
var historicTwo = historics[0];
var firstDistance = _euclid.Distance(new[] { currentCoordinate.X, currentCoordinate.Z },
new [] { historicOne.Coordinate.X, historicOne.Coordinate.Z });
var secondDistance = _euclid.Distance(new[] { historicOne.Coordinate.X, historicOne.Coordinate.Z },
new [] { historicTwo.Coordinate.X, historicTwo.Coordinate.Z });
var speed1 = firstDistance / timeStamp.Subtract(historicOne.TimeStamp).TotalMilliseconds * 1000;
var speed2 = secondDistance / historicOne.TimeStamp.Subtract(historicTwo.TimeStamp).TotalMilliseconds * 1000;
acceleration = speed1 - speed2;
return(true);
}
acceleration = 0;
return(false);
}
public void EuclideanDistance_Exception_y_Null()
{
double[] x = new double[] { 0, 1, 2, 3, 4, 5 };
double[] y = null;
Assert.Throws <ArgumentNullException>(() => Euclidean.Distance(x, y));
}