public void Op_NotEquals()
{
var p1 = new Point3double(1, 2, 3);
var p2 = new Point3double(1, 2, 4);
Assert.True(p1 != p2);
}
/// <summary>
/// Determines if the points p1 and p2 are on the same side of the line through points a and b
/// </summary>
/// <param name="p1"></param>
/// <param name="p2"></param>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
private static bool SameSide(Point3double p1, Point3double p2, Point3double a, Point3double b)
{
var cp1 = (b - a).Cross(p1 - a);
var cp2 = (b - a).Cross(p2 - a);
return(cp1.Dot(cp2) >= 0);
}
public void Equals2()
{
var p1 = new Point3double(1, 2, 3);
var p2 = new Point3double(1, 2, 3);
Assert.Equal(p1, p2);
}
public void Point3double()
{
var p = new Point3double(1, 2, 3);
Assert.Equal(1, p.X);
Assert.Equal(2, p.Y);
Assert.Equal(3, p.Z);
}
public void GetHashCodeTest()
{
var expected = 1073217536;
var p = new Point3double(1, 2, 3);
var actual = p.GetHashCode();
Assert.Equal(expected, actual);
}
public void ToStringTest()
{
var expected = "(1, 2, 3)";
var p = new Point3double(1, 2, 3);
var actual = p.ToString();
Assert.Equal(expected, actual);
}
public void Cross()
{
var expected = new Point3double(-1, 2, -1);
var p1 = new Point3double(1, 2, 3);
var p2 = new Point3double(2, 3, 4);
var actual = p1.Cross(p2);
Assert.Equal(expected, actual);
}
public void Dot()
{
var expected = 20;
var p1 = new Point3double(1, 2, 3);
var p2 = new Point3double(2, 3, 4);
var actual = p1.Dot(p2);
Assert.Equal(expected, actual);
}
public static Point3double Cross(this Point3double p1, Point3double p2) =>
/// <summary> /// Determines if the point p lies inside the triangle defined by the points a, b, c /// </summary> /// <param name="p"></param> /// <param name="a"></param> /// <param name="b"></param> /// <param name="c"></param> /// <returns></returns> public static bool IsPointInTriangle(Point3double p, Point3double a, Point3double b, Point3double c) => SameSide(p, a, b, c) && SameSide(p, b, a, c) && SameSide(p, c, a, b);
public void EqualsTest()
{
var p = new Point3double(1, 2, 3);
Assert.False(p.Equals(1));
}
