Make comet move with respect to a function

I've got a function x,y (coordinates) and another t,v, (velocity with respect to time) I want to make that the function comet moves according to the x,y function slower or faster with respect to the function of velocity with respect of time, how can I make this?

Answer 1

[Walter Roberson]

You cannot do that with comet(). comet() requires that you pre-define all of the points, and it moves them however fast it wants.

In current releases, comet() is implemented using matlab.graphics.animation.AnimatedLine which has a public interface of animatedline()