public double DistanceTo(Line other)
{
var distances = new List <double>();
distances.Add(other.DistanceTo(this.StartPoint));
distances.Add(other.DistanceTo(this.EndPoint));
distances.Add(this.DistanceTo(other.StartPoint));
distances.Add(this.DistanceTo(other.EndPoint));
distances.Add(this.StartPoint.DistanceTo(other.StartPoint));
distances.Add(this.StartPoint.DistanceTo(other.EndPoint));
distances.Add(this.EndPoint.DistanceTo(other.StartPoint));
distances.Add(this.EndPoint.DistanceTo(other.EndPoint));
double d9 = Math.Abs(LineToLineDistance(other));
var closestPoint = this.ClosestPointOnLine(other);
var t = this.ParameterAtPoint(closestPoint);
closestPoint = other.ClosestPointOnLine(this);
var u = other.ParameterAtPoint(closestPoint);
var dot = Math.Abs(this.Direction.Normalized().Dot(other.Direction.Normalized()));
var parallel = dot == 1;
if (!parallel && t >= 0 && t <= 1 && u >= 0 && u <= 1)
{
distances.Add(d9);
}
return(distances.Min());
}
public double DistanceTo(Line l)
{
return(l.DistanceTo(this));
}