i'm looking for an example of a drilldown on large heatmap of highcharts for a csv data? first, a large heatmap is created using csv data. I should be able to select a part of the heatmap and drilldown further to see the details.
It behaves the same way other drill down chart works, Probably you can go through this sample
You have to set a drilldown series by parsing the csv data
drilldown: function (e) {
if (!e.seriesOptions) {
}