Changing color of dataSeries if any y value is above threshold - CanvasJS Javascript HTML 5 Chart
Changing color of dataSeries if any y value is above threshold - CanvasJS Javascript HTML 5 Chart
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 limit = 100; //increase number of dataPoints by increasing this
var y = 0;
var data = []; var dataSeries = { type: "splineArea" };
var dataPoints = [];
for (var i = 0; i < limit; i += 1) {
y += (Math.random() * 50 - 25);
dataPoints.push({
x: i - limit / 2,
y: y
});
}
dataSeries.dataPoints = dataPoints;
dataSeries.color = "green";
data.push(dataSeries);
for(dataPoint of dataSeries.dataPoints)
if(dataPoint.y > 80){
dataSeries.color = "red";
break;
}
var chart = new CanvasJS.Chart("chartContainer",
{
title:{
text: "Changing color of dataSeries if any y value is above 80"
},
data: data, // random generator above
});
chart.render();