i'm not sure if this is there is a faster way, but i use the curve frame component at the desired parameter on the curve. this creates a plane, which you can then decompose into parts. the each of the X & Y axes correspond to tangent and perpendicular.
http://grasshopper3d.googlegroups.com/web/linetangenttocurve.jpg On Feb 5, 11:25 am, Pax <[email protected]> wrote: > Hey all, > > Is there a function I'm not seeing from which I can get a tangent > vector off a curve? I would like to feed this into the ArcSED > component to get a second arc adjacent to an arc I already have, > maintaining tangency between them. > > Any help would be greatly appreciated! > > Many thanks.
