Creating multiple hyperbolic curves

Hi,

I am forcing myself to understand Dynamo but I am getting stumped. I would like to create multiple hyperbolic curves along a length (like a tunnel) though when I change the lacing to cross product it creates a vertical plane of points. I can create the curve, invert it & offset it above the ground plane, but I can not figure out how to copy it along the length.

Any help or direction to training material would be appreciated.

Thanks.
hyperbolic_curve

20150807-1

Thanks Vikram!

I have modified slightly to achieve equal divisions to each curve.

 

hyperbolic_curve2

Andrew, equidistant points on a curve can be obtained a lot more directly by using the Curve.PointAtParameter node

20150810-2