/// <summary>
/// Calculate d side.
/// </summary>
/// <param name="ad">AD angle in degrees.</param>
/// <param name="ax">Lenth of side a_x.</param>
/// <param name="bx">Lenth of side b_x.</param>
/// <returns></returns>
private static double CalculateD(double ad, double ax, double bx)
{
Checks.Between(ad, -90, 180, nameof(ad));
Checks.GreaterThanZero(ax, nameof(ax));
Checks.GreaterThanZero(bx, nameof(bx));
if (ad < 90)
{
var d = bx + ax;
return(Math.Abs(d));
}
else if (ad == 90)
{
var d = bx;
return(Math.Abs(d));
}
else // alpha > 90
{
var d = bx - ax;
return(Math.Abs(d));
}
}
/// <summary>
/// Calculate c side.
/// </summary>
/// <param name="cb">CB angle in degrees.</param>
/// <param name="ay">Lenth of side a_y.</param>
/// <param name="by">Lenth of side b_y.</param>
/// <returns></returns>
private static double CalculateC(double cb, double ay, double by)
{
Checks.Between(cb, -90, 180, nameof(cb));
Checks.GreaterThanZero(ay, nameof(ay));
Checks.GreaterThanZero(by, nameof(by));
if (cb < 90)
{
var c = ay + by;
return(Math.Abs(c));
}
else if (cb == 90)
{
var c = ay;
return(Math.Abs(c));
}
else // beta > 90
{
var c = ay - by;
return(Math.Abs(c));
}
}
