Develop Reference

Display 100 Points in 1 second : Highcharts

So I have a project where I am trying to update chart. in which 100 points to be displayed in each second.
For that I am trying this example from the Highcharts.
But the chart stops responding to such event.
The code:
jsfiddle
Highcharts.chart('container', {
chart: {
type: 'spline',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: function () {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
var x = (new Date()).getTime(), // current time
y = Math.random();
series.addPoint([x, y], true, true);
}, 10);
}
}
},
time: {
useUTC: false
},
title: {
text: 'Live random data'
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150
},
yAxis: {
title: {
text: 'Value'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
headerFormat: '<b>{series.name}</b><br/>',
pointFormat: '{point.x:%Y-%m-%d %H:%M:%S}<br/>{point.y:.2f}'
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Random data',
data: (function () {
// generate an array of random data
var data = [],
time = (new Date()).getTime(),
i;
for (i = -19; i <= 0; i += 1) {
data.push({
x: time + i * 1000,
y: Math.random()
});
}
return data;
}())
}]
});

You can set redraw parameter in addPoint method to false and call chart.redraw() at longer intervals:
chart: {
...,
events: {
load: function() {
// set up the updating of the chart each second
var series = this.series[0],
chart = this;
setInterval(function() {
var x = (new Date()).getTime(), // current time
y = Math.random();
series.addPoint([x, y], false, true);
}, 10);
setInterval(function() {
chart.redraw();
}, 500);
}
}
}
Live demo: https://jsfiddle.net/BlackLabel/s3gh6q5j/
API Reference:
https://api.highcharts.com/class-reference/Highcharts.Series#addPoint
https://api.highcharts.com/class-reference/Highcharts.Chart#redraw

In highcharts,series without dynamic data does not shift

In the combination of series with and without dynamic data,the series with dynamic data can be easily shifted but where as the other series which are not dynamic do not get shifted out completely.
I have reproduced the issue in the following link: https://jsfiddle.net/8uxepk21/
Here as you can see there are two series. The series with static data appears to be shifting but if you increase the size of the rang-selector,then the series with static data do not get shifted out of the chart completely but still stays unlike the other series.
Is there any option to shift data explicitly without using series.addpoint() method.
I have used series.data[0].remove() and it obviously works fine but when a new data has to arrive for the same series after some time,this remove() method would remove the arriving point aswell. Further if I provide any condition for the maximum points to be in series while shifting,even then it will cause performance issue.
EXPECTED RESULT: Both the series data have to be shifted completely irrespective of the data being static or dynamic.
// Create the chart
Highcharts.stockChart('container', {
chart: {
events: {
load: function () {
// set up the updating of the chart each second
var series1 = this.series[0];
setInterval(function () {
var x = (new Date()).getTime(), // current time
y = Math.round(Math.random() * 100);
series1.addPoint([x, y], true, true);
}, 2000);
var series2 = this.series[1];
//setInterval(function () {
//var x = (new Date()).getTime(), // current time
// y = Math.round(Math.random() * 50);
//series2.addPoint([x, y], true, true);
//}, 2000);
}
}
},
time: {
useUTC: false
},
rangeSelector: {
buttons: [{
count: 1,
type: 'minute',
text: '1M'
}, {
count: 5,
type: 'minute',
text: '5M'
}, {
type: 'all',
text: 'All'
}],
inputEnabled: false,
selected: 0
},
title: {
text: 'Live random data'
},
exporting: {
enabled: false
},
legend: {
enabled: true
},
plotOptions: {
series: {
marker: {
states: {
hover: {
enabled: true,
animation: {duration: 100},
enableMouseTracking: true,
stickyTracking: true
}
}
}
}
},
tooltip:{
shared: true,
split: false,
stickyTracking: true,
enableMouseTracking: true,
enabled: true,
followPointer: true,
followTouchMove: true,
formatter: function(){
var tooltip = "";
var phaseNameList = "";
//tooltip += "<b>I-unit "+ "<br/>"+ "x: "+this.x +"</b>";
tooltip += "<b>I-unit "+ "<br/>"+ "x: "+ new Date(this.x)+
"</b>";
tooltip += "<br/>"+ "y: "+this.y +"</b>";
tooltip += "<br/>"+ this + "</b>";
return tooltip;
}
},
series: [{
name: 'Random data1',
data: (function () {
// generate an array of random data
var data = [],
time = (new Date()).getTime(),
i;
for (i = -90; i <= 0; i += 1) {
data.push([
time + i * 1000,
Math.round(Math.random() * 100)
]);
}
return data;
}())
},
{
name: 'Random data2',
data: (function () {
// generate an array of random data
var data = [],
time = (new Date()).getTime(),
i;
for (i = -90; i <= 0; i += 1) {
data.push([
time + i * 1000,
Math.round(Math.random() * 50)
]);
}
return data;
}())
}]
});
<script src="https://code.highcharts.com/stock/highstock.js"></script>
<script src="https://code.highcharts.com/stock/modules/exporting.js"></script>
<script src="https://code.highcharts.com/stock/modules/export-data.js"></script>
<div id="container" style="height: 400px; min-width: 310px"></div>

To achieve it you can add points with null values to the second series. Check the code and demo posted below.
Code:
chart: {
events: {
load: function() {
var chart = this,
series1 = chart.series[0],
series2 = chart.series[1],
x, y;
setInterval(function() {
x = (new Date()).getTime();
y = Math.round(Math.random() * 100);
series1.addPoint([x, y], false, true);
series2.addPoint([x, null], false, true);
chart.redraw();
}, 2000);
}
}
}
Demo:
https://jsfiddle.net/BlackLabel/6vp5cbt8/

Highstock dynamic update issue case

Expected behaviour
I hope to let the chart also dynamic update when I drag scrollbar and it is not in left boundary or right boundary.
Thanks for your help.
Actual behaviour
It is a Stationary state when I selected a range via scrollbar and it is not in left boundary or right boundary
Live demo with steps to reproduce highstock dynamic update demo:
Highcharts.setOptions({
global: {
useUTC: false
}
});
// Create the chart
Highcharts.stockChart('container', {
chart: {
events: {
load: function () {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
var x = (new Date()).getTime(), // current time
y = Math.round(Math.random() * 100);
series.addPoint([x, y], true, true);
}, 1000);
}
}
},
rangeSelector: {
buttons: [{
count: 1,
type: 'minute',
text: '1M'
}, {
count: 5,
type: 'minute',
text: '5M'
}, {
type: 'all',
text: 'All'
}],
inputEnabled: false,
selected: 0
},
title: {
text: 'Live random data'
},
exporting: {
enabled: false
},
series: [{
name: 'Random data',
data: (function () {
// generate an array of random data
var data = [],
time = (new Date()).getTime(),
i;
for (i = -999; i <= 0; i += 1) {
data.push([
time + i * 1000,
Math.round(Math.random() * 100)
]);
}
return data;
}())
}]
});
<script src="https://code.highcharts.com/stock/highstock.js"></script>
<script src="https://code.highcharts.com/stock/modules/exporting.js"></script>
<div id="container" style="height: 400px; min-width: 310px"></div>
jsfiddle
Product version
highstock version : 6.0.7

Highcharts - selection error with live data and different time intervals

I'm using highcharts and am I trying to develop a chart, which can handle live data.
Here is my first try:
var data = [],
chart_interval = undefined;
Highcharts.setOptions({
global: {
useUTC: false
}
});
function addRandomData(dataSet, frequency, yMax, count) {
for (var i = 1; i <= count; i++) {
var x = new Date((new Date()).getTime() + i * frequency),
y = Math.random() * yMax;
dataSet.push({
x: x,
y: y
});
}
return dataSet;
}
function addDataInterval(dataSet, frequency, yMax) {
return setInterval(function() {
var x = new Date(dataSet[dataSet.length - 1].x.getTime() + frequency),
y = Math.random() * yMax;
dataSet.push({
x: x,
y: y
});
}, frequency);
}
// Parameters: dataSet, frequency, yMax, count
addRandomData(data, 1000, 10000, 60);
// Parameters: dataSet, frequency, yMax
addDataInterval(data, 500, 10000);
// Create the chart
Highcharts.stockChart('container', {
chart: {
zoomType: 'x',
events: {
load: function() {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function() {
series.update({
data: data
}, true);
}, 1000);
}
}
},
rangeSelector: {
buttons: [{
count: 1,
type: 'minute',
text: '1M'
}, {
count: 5,
type: 'minute',
text: '5M'
}, {
type: 'all',
text: 'All'
}],
inputEnabled: false,
selected: 0
},
title: {
text: 'Live random data'
},
exporting: {
enabled: false
},
series: [{
name: 'Random data',
data: data
}]
});
<script src="https://code.highcharts.com/stock/highstock.js"></script>
<script src="https://code.highcharts.com/stock/modules/exporting.js"></script>
<div id="container" style="height: 400px; min-width: 310px"></div>
Problem: If already existing data has different time intervals, such as the newly generated data, the freely selectable zoom don't work.
Have I somewhere make mistake or is this a bug of highcharts?

Highcharts wants time values as timestamps in milliseconds instead of Date objects:
What format does the highcharts js library accept for dates?
Highcharts X-Axis time from JS date
Change how you generate your x values, and the zooming magically starts working again:
var x = (new Date()).getTime() + i * frequency,
...
var x = dataSet[dataSet.length - 1].x + frequency,
https://jsfiddle.net/74zdsvbo/

How to update Highcharts data dynamically over a period of time

I want to use Highcharts graph and update y axis dynamically. Actually I want to update nsw, Tas, ACT every 5 sec. How do I do it ?
Here is my code.
$(function () {
$('#container').highcharts({
title: {
text: 'Histogram',
x: -20 // center
},
subtitle: {
text: 'Source: www.trove.com',
x: -20
},
xAxis: {
categories: ['NSW', 'Tas', 'ACT','QLD','VIC','SA','WA']
},
yAxis: {
title: {
text: 'Hits'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
valueSuffix: '°C'
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle',
borderWidth: 0
},
series: [{
name: 'States',
data: [nsw, Tas, ACT,qld,vic,sa,wa]
}]
});
});
});

In the Documentation you can find an example from Highcharts in jsfiddle. Check it out http://jsfiddle.net/gh/get/jquery/1.9.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/dynamic-update/. In the example every second a new point will be added. Here comes the relevant code part:
chart: {
type: 'spline',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: function () {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
var x = (new Date()).getTime(), // current time
y = Math.random();
series.addPoint([x, y], true, true);
}, 1000);
}
}
},
`

The easiest way to do it would be to use the javascript function "setInterval()" to call it.
Here is a link where you can find a way to do it :
http://www.w3schools.com/js/js_timing.asp
If you are not really good at javascript, you might need this declaration of functions : var functionName = function() {} vs function functionName() {}

Use:
events: {
load: function () {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
var x = (new Date()).getTime(), // current time
y = Math.random(),
l = series.data.length;
for(var i = 0; i < l; i++) {
series.data[i].update({
y: getHits(i) // or something else
});
}
}, 5000); // 5 seconds
}
}
Where index is index (count from 0) of nsw/Tas/ACT in data array. (for nsw = 0, for Tas = 1 etc.)