Hi Peter, with your tangent vector your can use a plane which uses the tangent vector as Z Axis. And afterwords you can use the X or Y vector of the plane to construct your line...
http://groups.google.com/group/grasshopper3d/web/line%20perpendicular%20to%20curve.ghx here is an example file Best Svetlin On 21 mar, 17:36, "[email protected]" <[email protected]> wrote: > Hi, > > I would like to devide a given curve into a number of segments and > then put a line at each of those division points which is perpidicular > to the curve at that point. > > here is what I did : > devide curve and put line with tangent vector from the division point. > Then I rotated the line by 90degree around the point. does not quite > work... > any ideas what is wrong or different approach?!? > > thanks, > > Peter
