public SphereVector WalkTowardsPortion(SphereVector v, double portion)
{
double distance = this.Distance(v);
if (distance < 0.001) // currently has precision issues
{
return(new SphereVector(((1 - portion) * this + portion * v).Normalized()));
}
else
{
return(WalkTowards(v, this.Distance(v) * portion));
}
}
internal SphereVector FlipOver(SphereVector v)
{
return(this.WalkTowards(v, 2 * this.Distance(v)));
}
public double Distance(SphereVector v)
{
return(Math.Asin(this.Cross(v).Length()));
}
public SphereVector WalkTowards(SphereVector v, double radians)
{
Vector3d D_tick = ((this.Cross(v).Cross(this)).Normalized()); // 90 degrees rotated towards v
return(new SphereVector(Math.Cos(radians) * this + Math.Sin(radians) * D_tick));
}