Self Updating BBCode pie charts?

I already know how to make a pie chart in BBCode but it would be awesome to have an automatic one that updates data from a poll.

Maybe someone knows how to do this? Would be a nice feature.

@LennardF1989 Will know. Probably.

I really want this thing to embed:

<iframe width="350" height="240" src="https://w2.countingdownto.com/814791" frameborder="0"></iframe><p><a href="https://countingdownto.com">Website Countdowns</a></p>

Because countdowns are handy.