Avoiding flicker when updating heatmap

[mpelzsherman]

I have an application that needs to update the heatmap at regular intervals.

When the heatmap data changes, there is a noticeable flicker.

So far I have tried a number of things but haven't managed to eliminate this.

I have found that if I do not remove the previous heatmap layer, the flicker goes away, but the heatmap images pile up, causing the colors to intensify.

The flickering is not noticeable in the heatmap.js demo: https://www.patrick-wied.at/static/heatmapjs/example-heatmap-animation.html

If anyone has any suggestions, I would greatly appreciate it!