/// <summary>
/// Returns shortest distance from segment to the line
/// </summary>
public double DistanceTo(Line3d l)
{
if (l.PerpendicularTo(this.ToLine).BelongsTo(this))
{
return(l.DistanceTo(this.ToLine));
}
else
{
return(Min(this.P1.DistanceTo(l), this.P2.DistanceTo(l)));
}
}
/// <summary>
/// Shortest distance between sphere and line
/// </summary>
public double DistanceTo(Line3d l)
{
double d = l.DistanceTo(this.Center);
if (d > this.R)
{
return(d - this.R);
}
else
{
return(0);
}
}