I had an Animate environment with a continuous variable, but switched to Manipulate because I also wanted some user interaction while keeping the animation. In Animate I could specify AnimationRunning->False, but I can't figure out how to do that with Manipulate. The AnimationRunning option isn't allowed, and other things like AutoAction->False don't seem to work.

Here is my code:

 Show[ContourPlot[x^2 + y^2 == 4, {x, -2, 2}, {y, -2, 2}, 
   Frame -> False, PerformanceGoal -> "Quality"], Graphics[{
    EdgeForm[Thin], Gray, Opacity[.2], Disk[{Sin[t], Cos[t]}, rad],
    Black, Opacity[1], Disk[{Sin[t], Cos[t]}, 0.01]}]],
 {t, RandomReal[500], Infinity}, {rad, .01, 1}]

In this case, since I have a nice periodic function, I know I don't have to use the Infinity endpoint, but my actual problem involves many functions of many different periods and I would like to keep the t parameter going without repeats. Here's a snapshot:

enter image description here

When I press Shift+Enter the point starts moving immediately, and I would like it to not move until I click the play button. So:

How can I keep a continuous animation in Manipulate from executing when the whole cell is executed?


1 Answer 1


You need to set this option for the Animator controller used for t:

... {t, RandomReal[500], Infinity, AnimationRunning -> False} ...

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