/// <summary>
/// crosses the triangle with a line. It returns true if the cross point is inside the triangle. In this case <b>Lam</b> and <b>Point</b> will be calculated.
/// You get the cross point <b>Pt</b> by L.Value(Lam).
/// </summary>
/// <param name="L">is the line</param>
/// <param name="Pt">is the cross point</param>
/// <param name="Lam">is the parameter. You get the cross point <b>Pt</b> by L.Value(Lam).</param>
/// <returns></returns>
public bool Cross(LineType L, ref xyzf Pt, ref double Lam)
{
Plane P1 = new Plane(A, B, C);
xyz P = new xyz(0, 0, 0);
Lam = -1;
if (P1.Cross(L, out Lam, out P))
{
xyz PP = L.Value(Lam);
Pt = new Drawing3d.xyzf((float)P.x, (float)P.y, (float)P.z);
if (Inside(P.toXYZF()))
{
Pt = P.toXYZF();
return(true);
}
}
return(false);
}
/// <summary>
/// Gets the distance to a line.
/// </summary>
/// <param name="L">A line</param>
/// <param name="MaxDist">maximal distance</param>
/// <param name="param">Parameter relative to this curve</param>
/// <param name="lam">Prameter relative to L</param>
/// <returns>The distance</returns>
public double Distance(LineType L, double MaxDist, out double param, out double lam)
{
double result = Utils.big;
xyArray a = new xyArray(Resolution + 1);
this.ToArray(a, 0);
double di = a.Distance(L, MaxDist, out param, out lam);
xyz P = L.Value(lam);
xyz Q = Value(param).toXYZ();
double T = P.dist(Q);
if (!Utils.Less(MaxDist, di))
{
param = this.fromParam + param * toParam / Resolution;
result = di;
}
return(result);
}
