I'm trying to represent data flow from a physical location to a computer via splines with moving balls. At the moment, i'm using toxi's implementation of a verletparticle system with an attractor at the destination and gravity on the oposite axis to create the curvature of the particles. Then i'm using the particles as points to create a spline. The faster the data transfer, the faster the particles will move, by increasing the force of the attractor. However, this changes the curvature of the spline. What other method do you guys know i could use where i could isolate the speed variable and keep the curvature of the spline? I basically want to move particles along a spline.

cheers