I'm still pretty wet behind the ears when it comes to javascript. I need some help adding a secondary axis that is something like revenue to a highstock chart that also uses $.getJSON (JSONP) to snag a json file to populate the data.
Check out the JSFiddle example here. And here is the sample data set to play with. And finally, an example of secondary axis in Highcharts.
$(function () {
var seriesOptions = [],
seriesCounter = 0,
names = ['MSFT', 'AAPL', 'GOOG'],
// create the chart when all data is loaded
createChart = function () {
$('#container').highcharts('StockChart', {
rangeSelector: {
selected: 4
},
yAxis: {
labels: {
formatter: function () {
return (this.value > 0 ? ' + ' : '') + this.value + '%';
}
},
plotLines: [{
value: 0,
width: 2,
color: 'silver'
}]
},
yAxis: {
floor: 0
},
plotOptions: {
series: {
compare: 'value'
}
},
tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y}</b> ({point.change}%)<br/>',
valueDecimals: 2
},
series: seriesOptions
});
};
$.each(names, function (i, name) {
$.getJSON('http://www.highcharts.com/samples/data/jsonp.php?filename=' + name.toLowerCase() + '-c.json&callback=?', function (data) {
seriesOptions[i] = {
name: name,
data: data
};
// As we're loading the data asynchronously, we don't know what order it will arrive. So
// we keep a counter and create the chart when all the data is loaded.
seriesCounter += 1;
if (seriesCounter === names.length) {
createChart();
}
});
});
});
Any help and explanations (so I can learn) is much appreciated. I'm still trying to learn how to tie jsonp and charting together, especially multiple series of data and json files.
Write it like this:
yAxis: [{
labels: { ... },
title: { ... },
...
},
{
labels: { ... },
title: { ... },
...
}]
http://jsfiddle.net/5eem7a2a/1/
Related
So what I have is a chart in which I have events function which loads data for multiple sets.
suppose I have data of 3000 points. The first data set renders the first 1000 points and after that second data set renders 2000 points.
for which I am calling my 'events' function .
but the problem arises that after showing the first 1000 set of data. The chart starts from the begining.
I don't want that.
That's why I need a solution so that my Highchart's chart render only once and the event function loads continuously.
Here's a snip of my Highchart's js
Highcharts.chart("chartcontainer", { // make thsi chart load only once.
chart: {
type: 'line',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
//Load this event function as the data updates
events: {
load: function() {
var series = this.series[0],
chart = this;
setInterval(function() {
//some logic regarding the chart
//..
v = {
y: y,
x: x
};
console.log("V value", v);
series.addSeries(v, false, true);
counter++;
localcounter++;
} else
{
oldcounter=counter;
flagToreload=1;
}
}, 1000/130);
setInterval(function() {
chart.redraw(false);
}, 100);
}
}
},
time: {
useUTC: false
},
title: {
text: 'Live random data'
},
xAxis: {
type: 'Value',
gridLineWidth: 1
},
yAxis: {
title: {
text: 'Value'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}],
gridLineWidth: 1
},
tooltip: {
headerFormat: '<b>{series.name}</b><br/>',
pointFormat: '{point.x:%Y-%m-%d %H:%M:%S}<br/>{point.y:.2f}'
},
exporting: {
enabled: false
},
series: [{
animation: false,
name: 'Random data',
data: (function() {
// generate an array of random data
var data = [],
time = counter,
i;
for (i = -1000; i <= 0; i += 1) {
data.push([
counter,
null
]);
}
return data;
}())
}]
});
You can use:
addPoint method:
chart: {
events: {
load: function() {
var newData,
chart = this,
series = chart.series[0];
setInterval(function() {
newData = getRandomData();
newData.forEach(function(el) {
series.addPoint(el, false);
});
chart.redraw();
}, 2000);
}
}
}
Live demo: http://jsfiddle.net/BlackLabel/2a8qswhf/
API Reference: https://api.highcharts.com/class-reference/Highcharts.Series#addPoint
setData method:
chart: {
events: {
load: function() {
var newData,
chart = this,
combinedData,
series = chart.series[0];
setInterval(function() {
newData = getRandomData();
combinedData = series.userOptions.data.concat(newData);
series.setData(combinedData);
}, 2000);
}
}
}
Live demo: http://jsfiddle.net/BlackLabel/Lmsk8yw9/
API Reference: https://api.highcharts.com/class-reference/Highcharts.Series#setData
I am a bit out of my comfort zone, since I normally do analytics and not fancy front-ends. However, I would like to have a real-time demo of some of my work, so it becomes easier to understand and not just numbers in a matrix. I have looked around and found something semi-relevant and come this far:
(It has four series like I want to and it iterates - to some degree)
https://jsfiddle.net/023sre9r/
var series1 = this.series[0],
series2 = this.series[1],
series3 = this.series[2],
series4 = this.series[3];
But I am totally lost on how to remove the random number generators without loosing nice things like the number of data points in a view (seems to depend on the for loop?!). Remove the extra title "Values" right next to my real y-axis title. And of cause how to get a new data point from a XML-file every second.
Ideally I want to have an XML-file containing 4 values, which I update approximately every 200ms in MATLAB. And every second I would like my 4 series chart to update. Is it not relatively easy, if you know what you are doing?! :-)
Thanks in advance!
I simplified your example and added clear code showing how to fetch data from server and append it to your chart using series.addPoint method. Also if you want to use XML, just convert it to JS object / JSON.
const randomData = () => [...Array(12)]
.map((u, i) => [new Date().getTime() + i * 1000, Math.random()])
Highcharts.chart('container', {
chart: {
renderTo: 'container',
type: 'spline',
backgroundColor: null,
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load () {
const chart = this
setInterval(() => {
// Fetch example below (working example: https://github.com/stpoa/live-btc-chart/blob/master/app.js)
// window.fetch('https://api.cryptonator.com/api/ticker/btc-usd').then((response) => {
// return response.json()
// }).then((data) => {
// chart.series[0].addPoint({ x: data.timestamp * 1000, y: Number(data.ticker.price) })
// })
chart.series.forEach((series) => series.addPoint([new Date().getTime(), Math.random()], true, true))
}, 3000)
}
}
},
title: {
text: null
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150
},
yAxis: [{
title: {
text: 'Temperature [°C]',
margin: 30
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
}, {
}],
tooltip: {
formatter: function() {
return '<b>' + this.series.name + '</b><br/>' +
Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) + '<br/>' + Highcharts.numberFormat(this.y, 4);
}
},
legend: {
enabled: true
},
exporting: {
enabled: false
},
rangeSelector: {
enabled: false
},
navigator: {
enabled: false
},
scrollbar: {
enabled: false
},
series: [{
name: 'Setpoint',
data: randomData()
}, {
name: 'Return',
data: randomData()
}, {
name: 'Supply',
data: randomData()
}, {
name: 'Output',
data: randomData()
}]
})
Live example: https://jsfiddle.net/9gw4ttnt/
Working one with external data source: https://jsfiddle.net/111u7nxs/
I am working on stock charts where i have to show the stock data of three currencies. I am able to see the chart and rates corresponding to it but dates on x axis are not coming properly. my json response is like this .
[{"rate":1.3349,"month":"1422403200000"},{"rate":1.3415,"month":"1422316800000"},{"rate":1.3394,"month":"1422230400000"},{"rate":1.3202,"month":"1421971200000"},{"rate":1.304,"month":"1421884800000"},{"rate":1.3109,"month":"1421798400000"},{"rate":1.3017,"month":"1421712000000"},{"rate":1.3114,"month":"1421625600000"},{"rate":1.305,"month":"1421366400000"},{"rate":1.292,"month":"1421280000000"},{"rate":1.2876,"month":"1421193600000"},{"rate":1.2819,"month":"1421107200000"},{"rate":1.2801,"month":"1421020800000"}]
its just an example of json response. in my java vo rate is of double type and month is of String type.
my js code is here
function drawChart(){
var seriesOptions = [],
seriesCounter = 0,
names = ['EURGBP', 'EURJPY', 'EURCHF'],
// create the chart when all data is loaded
createChart = function () {
$('#drawchart').highcharts('StockChart', {
rangeSelector: {
selected: 4
},
yAxis: {
labels: {
formatter: function () {
return (this.value > 0 ? ' + ' : '') + this.value + '%';
}
},
plotLines: [{
value: 0,
width: 2,
color: 'silver'
}]
},
plotOptions: {
series: {
compare: 'percent'
}
},
tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y}</b> ({point.change}%)<br/>',
valueDecimals: 2
},
series: seriesOptions
});
};
$.each(names, function (i, name) {
$.getJSON('/bin/drawChart, function (data) {
var dataArray = new Array;
$.each(data, function (i, obj) {
dataArray.push([obj.month,obj.rate]);
});
alert(dataArray);
seriesOptions[i] = {
name: name,
data: dataArray,
tooltip: {
valueDecimals: 2
}
};
// As we're loading the data asynchronously, we don't know what order it will arrive. So
// we keep a counter and create the chart when all the data is loaded.
seriesCounter += 1;
if (seriesCounter === names.length) {
createChart();
}
});
});
}
Why date is not appearing correctly on x-axis
The problem is that in your JSON should be fields x and y. Morever values should be number not string as you have. So you should prepare correct JSON structure in your backend or parse it after loading.
your X-axis information is missing in draw chart method
I am creating a Gantt Chart using Highstocks(compare multiple series).
1. I want to have the First span color to be Red, the second Blue and third Green.
How can I do the same?
2. how can i set the tooltip to show the values of all the points on the line instead of all points at the time.
3. How to fix y-axis and it should add scroll as values increase.
Please check the Gantt Chart Fiddle here.
var partNumber="2724070125R Planned,2724070125RActual,5511822432R Planned,5511822432RActual";
var partNum = partNumber.split(",");
var ganttData = [
[[Date.UTC(2013,11-1,07),1], [Date.UTC(2013,11-1,29),1], [Date.UTC(2013,11-1,30),1]],
[[Date.UTC(2013,11-1,20),1.25],Date.UTC(2013,11-1,21),1.25],Date.UTC(2013,12-1,21),1.25]],
[[Date.UTC(2013,11-1,13),2],[Date.UTC(2013,12-1,10),2],[Date.UTC(2014,02-1,14),2]],
[[Date.UTC(2013,11-1,21),2.25],[Date.UTC(2013,11-1,21),2.25],[Date.UTC(2013,11-1,30),2.25]]];
$( document ).ready(function(){
$(function() {
var seriesOptions = [],
yAxisOptions = [],
seriesCounter = 0,
names = partNum,
colors = Highcharts.getOptions().colors;
var data=ganttData;
$(function () {
$.each(names, function(i, name) {
seriesOptions[i] = {
// name: data[i][1],
name:name,
step:true,
data: data[i]
};
// As we're loading the data asynchronously, we don't know what order it will arrive. So
// we keep a counter and create the chart when all the data is loaded.
seriesCounter++;
if (seriesCounter == names.length) {
createChart();
}
});
});
// create the chart when all data is loaded
function createChart() {
Highcharts.setOptions({
global: {
useUTC: false
}
});
$('#ganttChart').highcharts('StockChart', {
chart: {
},
title: {
text: 'PPAP Cumulative Status'
},
rangeSelector: {
selected: 4
},
xAxis: {
type: 'datetime', ordinal: false //this sets the fixed time formats
},
yAxis: {
plotLines: [{
value: 0,
width: 2,
color: 'silver'
}],
min:0 },
plotOptions: {
series: {
lineWidth: 3,
states: {
hover: {
enabled: true,
lineWidth: 3
}
}
}
},
tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y}</b><br/>',
valueDecimals: 0
},
series: seriesOptions,
exporting: {
enabled: false
}
});
}
});
});
1) You can set for series only one color. Here:
$.each(names, function(i, name) {
seriesOptions[i] = {
name: name,
step: true,
data: data[i],
color: 'yourColor'
};
...
});
2) In tooltip, you have access to series via this.points[0].series.data etc. So you can get all points.
3) Scroll is not supported.
I made a spline chart using Highcharts library containing two series of data loaded from two different CSV files and it works fine. Now I need another spline chart, but with 54 data series.
I used PHP to create the 54 CSV files, then my Javascript code generating the chart is:
<script type="text/javascript">
$(function () {
var chart;
$(document).ready(function() {
var options = {
chart: {
renderTo: 'chart_day',
type: 'spline'
},
title: {
text: 'Andamento giornaliero temperatura.'
},
xAxis: {
type: 'datetime',
second: '%H:%M:%S'
},
yAxis: {
title: {
text: 'Temperatura (°C)'
},
},
tooltip: {
formatter: function() {
return '<b>'+ this.series.name +'</b><br/>'+
Highcharts.dateFormat('%H:%M:%S', this.x) +': '+ this.y +' °C';
}
},
series: [ <?php for($i=0;$i<52;$i++)
echo "{ name: \"Sensor".($i+1)."\", data: []},";
echo "{ name: \"Sensor".($i+1)."\", data: []}";
?>]
};
for( i=1; i<=54; i++){
if(i!=5){
$.get('file/file'+i+'.txt', function(data) {
// Split the lines
var lines = data.split('\n');
// Iterate over the lines and add categories or series
$.each(lines, function(lineNo,line) {
if (line != "") {
var items = line.split(',');
var timeElements = items[0].split(':');
var date = Date.UTC(2004, 2, 1, timeElements[0], timeElements[1], timeElements[2], 0);
options.series[i-1].data.push([date,parseFloat(items[1])]);
}
});
if(i==54)
chart = new Highcharts.Chart(options);
});
}
}
});
});
</script>
There is an error in the JS consolle:
"Uncaught TypeError: Cannot read property 'data' of undefined "
Seems like your series initialization is broken. Try this
var series = [];
for(i=0;i<52;i++)
{
series.push({name: ('Sensor' + (i + 1)), data: []});
}
and set this series object at your options:
var options = {
..
series: series
};