How to re-render map when data changes?

[brylie]

I have a heat map that renders when the page initially loads. At a later point, the data can be updated from a parent data context. I have verified that the data is changed up to the point of rendering the ActivityMap. However, the final piece is to get the ActivityMap to refresh with the updated data.

How can I tell the ActivityMap instance to re-render with the new data (without refreshing the page)?