show plot lines in the legend - Javascript highcharts

Javascript examples for highcharts:Line Chart

  1. HOME
  2. Javascript
  3. highcharts
  4. Line Chart

Description

show plot lines in the legend

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <title>Highcharts Demo</title> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> 
      <script type="text/javascript">
$(function () {/*w w  w  .ja  v a2s .  co  m*/
    plotLineId = 'myPlotLine'; // To identify for removal
    // Plot line options for adding
    plotLineOptions = {
        color: '#FF0000',
        id: plotLineId,
        width: 2,
        value: 5.5,
        dashStyle: 'shortdash'
    };
    $('#container').highcharts({
        xAxis: {
            categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
            plotLines: [
               plotLineOptions
            ]
        },
        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]
        }, {
            // Series that mimics the plot line
            color: '#FF0000',
            name: 'My plotline',
            dashStyle: 'shortdash',
            marker: {
                enabled: false
            },
            events: {
                legendItemClick: function(e) {
                    if(this.visible) {
                        this.chart.xAxis[0].removePlotLine(plotLineId);
                    }
                    else {
                        this.chart.xAxis[0].addPlotLine(plotLineOptions);
                    }
                }
            }
        }
        ]
    });
});

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

Related Tutorials