Develop Reference

Defaults for Highcharts graphs

We are using Highcharts for the graphs in a dashboard web app. We are craeting the graph objects in javaScript. Most of the graphs share similar options. E.g. one graph is created by something like this:
Highcharts.chart('boiler-temp', {
chart: {
type: 'spline'
},
title: {
text: 'Boiler temperatures'
},
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
},
yAxis: [{
title: {
text: 'Inner temperature'
}
}, {
title: {
text: 'Outer temperature',
},
opposite: true,
min: 0,
max: 100
}],
data: {
rowsURL: dataUrl,
},
series: [{
yAxis: 0,
}, {
yAxis: 1,
}],
plotOptions: {
series: {
connectNulls: true
}
},
exporting: {
fallbackToExportServer: false
}
}
Another graph is created very similarly like this:
Highcharts.chart('boiler-temp', {
chart: {
type: 'spline'
},
title: {
text: 'Boiler pressure'
},
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
},
yAxis: [{
title: {
text: 'Inner pressure'
}
}, {
title: {
text: 'Outer outer pressure',
},
opposite: true,
min: 0,
max: 100
}],
data: {
rowsURL: dataUrl,
},
series: [{
yAxis: 0,
}, {
yAxis: 1,
}],
plotOptions: {
series: {
connectNulls: true
}
},
exporting: {
fallbackToExportServer: false
}
}
For maintainability I would like to define a default set of options as
{
chart: {
type: 'spline'
},
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
},
yAxis: [{
}, {
opposite: true,
min: 0,
max: 100
}],
series: [{
yAxis: 0,
}, {
yAxis: 1,
}],
plotOptions: {
series: {
connectNulls: true
}
},
exporting: {
fallbackToExportServer: false
}
}
and then, when I instantiate a graph, overwrite what changes. Is there a way to do this with Highcharts/JavaScript?

It can be done using Highcharts global options - set of options to all charts on the same page.
Highcharts.setOptions({
chart: {
type: 'spline'
},
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
},
yAxis: [{}, {
opposite: true,
min: 0,
max: 100
}],
series: [{
yAxis: 0,
}, {
yAxis: 1,
}],
plotOptions: {
series: {
connectNulls: true
}
},
exporting: {
fallbackToExportServer: false
}
});
Demo:
https://jsfiddle.net/BlackLabel/ugsfoyeh/
Docs:
https://www.highcharts.com/docs/getting-started/how-to-set-options#2
Another approach is to create a defaultOptions somewhere in your app and merge them with chart options using eg. Highcharts.merge().
const defualtData = {
chart: {
type: 'spline'
},
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
},
yAxis: [{}, {
opposite: true,
min: 0,
max: 100
}],
series: [{
yAxis: 0,
}, {
yAxis: 1,
}],
plotOptions: {
series: {
connectNulls: true
}
},
exporting: {
fallbackToExportServer: false
}
};
Highcharts.chart('boiler-temp1', Highcharts.merge(defualtData, {
title: {
text: 'Boiler temperatures'
}
}));
Demo:
https://jsfiddle.net/BlackLabel/5epm4hqc/
API reference:
https://api.highcharts.com/class-reference/Highcharts#.merge

Highcharts area chart curves to sharp

I just started using highcharts and I would like for my chart to display as something like the first image below, instead of the second image.
What I'd Like
What I have
Here is the code for what I have currently:
chart = new Highcharts.stockChart($('#' + tab + ' .chart')[0], {
chart: {
type: 'areaspline',
spacing: [10, 10, 15, 10],
events: {
load: function() {
setTimeout(function() {
interval = setInterval(function() {
requestData(asset, name)
}, 1000);
}, 1000);
}
},
},
rangeSelector: {
enabled: !1
},
navigator: {
enabled: false
},
title: {
text: name
},
xAxis: {
type: 'datetime',
tickPixelInterval: 100,
dateTimeLabelFormats: {
second: "%H:%M:%S",
minute: "%H:%M",
hour: "%H:%M",
day: "%d/%m",
week: "%Y<br/>%d-%m",
month: "%m-%Y",
year: "%Y"
}
//tickPixelInterval: 3600
},
yAxis: {
allowDecimals: true,
title: {
text: 'Values'
},
labels: {
style: {
backgroundColor: "#282828"
},
y: 12,
zIndex: 4,
formatter: function() {
return Highcharts.numberFormat(this.value, countDecimals(this.value))
}
},
opposite: false,
plotLines: [{
value: 0,
width: 1,
dashStyle: 'longdashdot',
color: '#2D2E2F'
}]
},
series: [{
name: 'Price',
dataGrouping: {
enabled: !1,
groupPixelWidth: 1
},
animation: !1,
threshold: null,
//color: '#2D2E2F',
data: []
}],
responsive: {
rules: [{
condition: {
maxWidth: 500
},
chartOptions: {
legend: {
align: 'center',
verticalAlign: 'bottom',
layout: 'horizontal'
},
yAxis: {
labels: {
align: 'left',
x: 0,
y: -5
},
title: {
text: null
}
},
subtitle: {
text: null
},
credits: {
enabled: false
}
}
}]
}
});
PS: The data from both charts are almost the same.
Thanks.

HighCharts axis flip on export

I have a Highchart in my web application. In the browser it displays normally which is as follows:
But when I export the chart it flips the axis and I end up with the following image:
Following are the options I am using for my Highchart.
var options = ({
chart: {
renderTo: 'chartDiv'
},
credits: {
enabled: false
},
title: {
text: ''
},
subtitle: {
text: ''
},
xAxis: {
type: 'datetime',
tickInterval: 7200 * 10000,
allowDecimals:false,
labels: {
format: '{value}',
rotation: 30,
align: 'left',
},
title: {
text: 'Date'
}
},
yAxis: [{
title: {
text: 'No. of rings'
},
min: 0
},
{ // Secondary yAxis
gridLineWidth: 0,
min: 0,
title: {
text: 'Accumulative Rings',
style: {
color: Highcharts.getOptions().colors[0]
}
},
labels: {
format: '{value} Ring',
style: {
color: Highcharts.getOptions().colors[0]
}
},
opposite: true,
}
],
tooltip: {
shared: true
},
legend: { backgroundColor: 'rgba(211,223,181,0.6)', layout: 'vertical', align: 'left', verticalAlign: 'top', floating: true, borderWidth: 0, x: 70 },
plotOptions: {
spline: {
marker: {
enabled: false
},
}
}
});
I have three series in my chart, the bar chart can have 0 values.
The data is coming from an ajax service, which I put in an array and then add to chart as follows:
chart.addSeries({
type: 'bar',
name: 'Rings per day ',
data: barData,
pointInterval: mainInterval
});
chart.addSeries({
type: 'spline',
name: 'Accumilative rings ',
data: spline1Data,
yAxis: 1,
});
chart.addSeries({
type: 'spline',
name: 'Planned Progress ',
data: spline2Data,
yAxis: 1,
color: "#FF0000"
});
What's wrong with my chart?

bar series is the key part. bar series forces chart to be rendered flipped. In your case use column. It displays differently on your browser because, most probably, you have an old version of Highcharts.

highcharts, bar chart legend with verticalAlign top not working

i made a bar stacked chart using highcharts and i want the legend to be on top, i used the attribute verticalAlign with the value top but it didn't work !
here is my jsfiddle http://jsfiddle.net/rchod/sbtt6/
$(function () {
$('#container').highcharts({
chart: {
type: 'bar'
},
legend: {
align: 'right',
verticalAlign: 'top',
x: 0,
y: 100
},
credits: {
enabled: false
},
title: {
text: ''
},
xAxis: {
labels: {
enabled: false
},
categories: ['']
},
yAxis: {
labels: {
enabled: true
},
min: 0,
title: {
text: ''
}
},
legend: {
backgroundColor: '#FFFFFF',
reversed: true
},
tooltip: {
enabled: false
},
plotOptions: {
series: {
minPointLength: 3,
dataLabels: {
color: 'white',
align: 'center',
enabled: true,
format: '{y} %'
},
stacking: 'percent'
},
bar: {
events: {
legendItemClick: function () {
vote(1,this.userOptions.id);
return false;
}
}
,
showInLegend: true
}
},
series: [
{
name: 'yes',
data: [{ y : 73.91, id : '1' }],
id: '1'
},
{
name: 'no',
data: [{ y : 26.09, id : '2' }],
id: '2'
},
]
});
});

You have the legend property twice in your options. The 2nd one is overriding the first. Put them together:
legend: {
backgroundColor: '#FFFFFF',
reversed: true,
align: 'right',
verticalAlign: 'top',
x: 0,
y: 100
},
Updated fiddle.

Tick position on X axis

How can I limit showing ticks on X axis in Highcharts? The last one is outter of X axis:
My source:
var options = {
chart: {
renderTo: 'chart',
events: {
load: function(event) {
}
},
type: 'spline',
animation: false
},
title: {
text: ''
},
colors: [
'#499878','black'
],
rangeSelector: {
enabled: false
},
credits: {
enabled: false
},
tooltip: {
shared: true,
crosshairs: true
},
series: [{
name: 'Temperature (°C)',
type: 'spline',
tooltip : {
valueDecimals: 2,
valueSuffix: ' °C'
},
yAxis: 0,
color: '#89A54E',
data: []
},{
name: 'Wind speed (m/s)',
type: 'spline',
tooltip : {
valueDecimals: 2,
valueSuffix: ' m/s'
},
yAxis: 1,
color: '#4572A7',
data: []
},{
name: 'Humidity (%)',
type: 'spline',
tooltip : {
valueDecimals: 2,
valueSuffix: ' %'
},
yAxis: 2,
color: '#910000',
data: []
},{
name: 'Wind direction (°)',
type: 'spline',
tooltip : {
valueDecimals: 2,
valueSuffix: ' °'
},
yAxis: 3,
color: '#000000',
dashStyle: 'shortdot',
data: []
}],
xAxis: {
type: 'datetime',
tickInterval: 10000,
min: 0,
max: 0
},
yAxis: [{
labels: {
style: {
color: '#89A54E'
}
},
title: {
text: 'Temperature',
style: {
color: '#89A54E'
}
},
gridLineWidth: 1,
opposite: true
},{
labels: {
formatter: function() {
return this.value +' m/s';
},
style: {
color: '#4572A7'
}
},
title: {
text: 'Wind speed',
style: {
color: '#4572A7'
}
},
gridLineWidth: 1,
opposite: false,
min: 0
},{
labels: {
formatter: function() {
return this.value +' %';
},
style: {
color: '#910000'
}
},
title: {
text: 'Humidity',
style: {
color: '#910000'
}
},
gridLineWidth: 1,
opposite: true
},{
labels: {
formatter: function() {
return this.value +' °';
},
style: {
color: '#000000'
}
},
title: {
text: 'Wind direction',
style: {
color: '#000000'
}
},
opposite: false,
reversed: true,
min: 0,
max: 360,
minorGridLineDashStyle: 'longdash',
minorTickInterval: 'auto',
minorTickWidth: 0,
tickInterval: 90
}],
plotOptions: {
spline: {
lineWidth: 3,
states: {
hover: {
lineWidth: 5
}
},
marker: {
enabled: false
}
},
scatter: {
marker: {
enabled: true
}
}
}
};

I found out it's matter of oveflow: 'justify'. jsfiddle

What happens if you use 'spacingRight' (http://api.highcharts.com/highcharts#chart.spacingRight) as below:
chart: {
renderTo: 'chart',
events: {
load: function(event) {
}
},
type: 'spline',
animation: false,
spacingRight: 100 // you may change this for testing...
},