Just wanted to say that I think your Heatmap.js plugin is awesome and I've used it extensively in a school project last semester.
I have one question about it. Is there a feature to remove some data points, or perhaps keep only some max number of data points in the heatmap so that the older ones are removed as new ones stream in kind of like a queue? Or is the only way to clear points redrawing the heatmap?
I think something like this is important because it allows for seriously real time heatmaps without getting too big and slow.
