Finding the Y axis value for a plot line in line chart - Javascript highcharts

Javascript examples for highcharts:Line Chart

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

Description

Finding the Y axis value for a plot line in line chart

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  a  2 s.  c  o  m
    $('#container').highcharts({
        chart: {},
        xAxis: {
            categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
        },
        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]
        }]
    });
    // the button action
    var hasPlotLine = false,
        $button = $('#button'),
        chart = $('#container').highcharts(),
        $report = $('#report');
    $button.click(function () {
        chart.xAxis[0].addPlotLine({
            value: 5.5,
            color: 'red',
            width: 2,
            id: 'plot-line-1'
        });
        var plotline = chart.xAxis[0].plotLinesAndBands[0];
        $report.html('Value: ' + plotline.options.value + ' Pixels: ' + chart.xAxis[0].toPixels(plotline.options.value));
    });
});

      </script> 
   </head> 
   <body> 
      <script src="https://code.highcharts.com/highcharts.js"></script> 
      <div id="container" style="height: 400px"></div> 
      <button id="button" class="autocompare">Add plot line</button> 
      <div id="report"></div>  
   </body>
</html>

Related Tutorials