hey does anyone know how to force a line to create multiple lines from two streams of data based on the extra cross product only ie use parallel points on two streams to make multiple lines?
hey, bit busy at moment to dig out that file [off on final year field trip tomorrow].
But the answer was to check the data was on corresponding levels [in terms of branching]. Therefore i solved it by flattening both sets and then using the line function [thinking on it maybe flatten and then graft so everything in on 0:1, 0:2 etc] then grashopper can see the pairs of points.