Answer to Stack Overflow question: Display tooltip for invisible series in Highcharts

Mike Zavarello

by Mike Zavarello

HTML

<script src="http://highcharts.com/js/testing.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>
<div id="container" style="height: 400px"></div>

JavaScript

var chart = new Highcharts.Chart({

  chart: {
    renderTo: 'container'
  },

  xAxis: {
    categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul',
                 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
  },

  tooltip: {
    formatter: function() {
      var s = '<b>'+ this.x +'</b>';

      $.each(this.points, function(i, point) {
        s += '<br/>'+ point.series.name +': '+
          point.y +'m';
      });

      return s;
    },
    shared: true
  },

	series: [{
		data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4],
		lineColor: 'transparent',			// make the line invisible
		marker: { 
			fillColor: 'transparent',		// make the line markers invisible
			states: {
				hover: {
					enabled: false			// prevent the highlight circle from showing when hovered
				}
			}
		}
	}, {
		data: [216.4, 194.1, 95.6, 54.4, 29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5]
	}]

});