StepLine Chart without Vertical Lines - CanvasJS JavaScript Charts

StepLine Chart without Vertical Lines - CanvasJS JavaScript Charts

by canvasjs

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<br/><!-- Just so that JSFiddle's Result label doesn't overlap the Chart -->
<div id="chartContainer" style="height: 360px; width: 100%;"></div>

JavaScript

var chart = new CanvasJS.Chart("chartContainer", {  
  title: {
    text: "StepLine Chart without Vertical Lines"
  },
  data: [
    {
      type: "stepLine",
      //markerType: "none", // Uncomment to remove marker
      //connectNullData: true, // Uncomment to show Vertical Dotted Lines
      dataPoints: [
        { x: 10, y: 10 },
        { x: 20, y: 15 },
        { x: 30, y: 10 },
        { x: 40, y: 30 },
        { x: 50, y: 30 },
        { x: 60, y: 25 },
        { x: 70, y: 5 }
      ]
    }
  ]
});
updateDataPoints(chart);
chart.render();

function updateDataPoints(chart) {
  var dps = [];
  var data = chart.options.data[0];
  for(var i = 0; i < data.dataPoints.length - 1; i++) {
    dps.push({x: data.dataPoints[i].x, y:data.dataPoints[i].y});
    dps.push({x: data.dataPoints[i+1].x, y:data.dataPoints[i].y});
    dps.push({x: data.dataPoints[i+1].x, y: null});
  }
  chart.options.data[0].dataPoints = dps;
}