lineColor based on dataPoint value - CanvasJS JavaScript Charts

lineColor based on dataPoint value - 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", {
  data: [{
    type: "line",
    dataPoints: dataGenerator(100),
  }]
});
chart.render();


function dataGenerator(limit) {
  var y = 100;
  var points = [];
  var color;
  for (var i = 0; i < limit; i += 1) {
    y += (Math.random() * 100 - 50);
    if (y > 50)
      color = "red";
    else
      color = "blue";
    points.push({
      x: i - limit / 2,
      y: y,
      lineColor: color,
      color:color
    });
  }
  return points;
}