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I'm just getting started with the Vaadin Charts Addon (3.0).
I was wondering if there is a simple or any method to add CustomDataLabels to the HeatMap.
With DataLabels.format() i can modify the content, but not the way i want to.
What i want is a fourth value to each dataPoint. Something like the heatseries dataPoint (int x, int y, Number heatScore) extended by an additonal information like (int x, int y, Number heatScore, String label)