Cool stuff Enrique. I think some of the most common techniques for this type of thing are the Euler, Verlet and Runge-Kutta methods (roughly in order of increasing accuracy and difficulty).
In the simplest case of the Euler method you simply take the field vector at a point, move along it, then take the new vector at that point and so on. The problem with this is that errors quickly build up, which the more advanced methods adjust for in various ways. There are lots more variations within and aside from these, all of which make various trade-offs between accuracy and speed. http://en.wikipedia.org/wiki/Numerical_ordinary_differential_equations On Apr 26, 12:18 pm, enrique <actg.c...@googlemail.com> wrote: > Oh thanks Dan! > > i just tried something very quick..from your > definitionhttp://grasshopper3d.googlegroups.com/web/streamline.JPG?gsc=92g-gQsA... > i'lll try to do it properly using a vb script..
