Amcharts 4: How to combine tooltips of LineSeries
问题 I have a chart containing 3 LineSeries. Sometimes, the lines cross each other. At these points only the single tooltip of the last added series is displayed. How can I combine those tooltips into one single single tooltip that contains the information on all three series, in case the points are at the same position? I build the chart using LineSeries and place CircleBullets on them: /* Create series */ var series1 = chart.series.push(new am4charts.LineSeries()); series1.dataFields.valueY =