Triangle truss with grasshopper

i built a truss with grasshopper which goes along a surface.
instead of a normal truss i want to make a triangle truss (

Can someone help me?

There are a ton of examples online for creating this sort of geometry in grasshopper. Here is one by David Rutten: Triangular Truss - Grasshopper

In general, you are going to want to divide your curves into lists of points and use shift list or relative item to create the struts.