The heatmap is an additional information layer that can be enabled to visualize numeric data over the graph. It can be enabled by setting the heatMapping function which should provide a numerical value based on the given data. The heat values should lie between 0 and 1.

The heatmap has the following limitations:

  • It does not currently work with Safari, as the required SVG filter functionality is not implemented there.
  • It is not currently exported or printed.