public void ToStandardRadianTest()
{
//1角度 = Pi/180 弧度
//360角度为 360*Pi/180 (即 2 Pi) 弧度
//1. Not a number
var result = FormateTool.ToStandardRadian(double.NaN);
Assert.AreEqual(result, double.NaN);
//2. 弧度为2Pi+1，结果应为1
var result1 = FormateTool.ToStandardRadian(2 * Math.PI + 1);
Assert.AreEqual(result1, 1);
//3. 弧度为4Pi+4，结果应为4
var result2 = FormateTool.ToStandardRadian(4 * Math.PI + 4);
Assert.AreEqual(result2, 4);
//4. 弧度为-4Pi-4，结果应为Pi(标准弧度为 0-2Pi)
var result3 = FormateTool.ToStandardRadian(-4 * Math.PI - Math.PI);
Assert.AreEqual(result3, Math.PI);
}
/// <summary>
/// 已知距离和角度（弧度）计算下一个点
/// </summary>
/// <param name="radian"></param>
/// <param name="precision"></param>
/// <returns></returns>
public Point3D GetNextPoint(double radian, double precision)
{
radian = FormateTool.ToStandardRadian(radian);
return(new Point3D(precision * Math.Sin(radian) + this.X, precision * Math.Cos(radian) + this.Y, this.Z));
}
