I have a Highchart graph which receives data from backend in the form of Handlebars expressions. Something like this.
$('#container').highcharts({
xAxis: {
categories: [{{{histKeys}}}]
},
yAxis: {
title: {
text: 'Failure Percentage',
style: {
color: '#cc0000'
}
},
labels: {
format: '{value}%',
style: {
color: '#cc0000'
}
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
credits: {
enabled: false
},
plotOptions: {
series: {
cursor: 'pointer',
point: {
events: {
click: function() {
var index = this.series.name;
var tfs = epochKeys[Math.ceil(this.x)];
window.location.href = url;
return false;
}
}
}
}
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle',
borderWidth: 0
},
series: [
{{#each histData as |index|}}
{
name: '{{#key}}',
type: 'spline',
allowPointSelect: true,
{{#each index as |status|}}
{{#if_eq #key "histSuccess"}}
{{/if_eq}}
{{#if_eq #key "histFailure"}}
data: [{{this}}],
{{/if_eq}}
{{/each}}
},
{{/each}}
]
});
Now i make an AJAX call to get data to refresh the graph. How do i pass the new value of Handlebars expressions to the variables used in the Highcharts code.
So the data i receive in the AJAX call contains the values of all these expressions that have been used in the Highcharts function.
Since the code is dynamic, i can't manually update the series values also because the number of lines on the graph differ depending upon the data coming from the backend.
Thanks for any input.
You can get the (already existing) highcharts object in the ajax callback like this:
$('#container').highcharts()
There's in fact a quite good API to interact with this object, documented here: http://api.highcharts.com/highcharts
For starters, you can replace an existing chart by calling addSeries() again. For that to work, your series must have an id, and you add a series with the same id again:
$('#container').highcharts().addSeries({ id: 'myid', data: .... });
In the same way, you can also remove existing series:
$('#container').highcharts().removeSeries('myid');
It's also possible only to replace the data of a series, something along the lines of this:
$('#container').highcharts().getSeries('myid').setData(...);
I hope that is a little help for you.
Related
I'm using html, css and javascript for the project. The server is set up locally including node, express and highcharts.
In my html i have a div container, that i'm referencing in my highcharts function. The data i'm using in the highchart come from a csv file. I wrote a simple getData function, that parses the data into an array. And at the top of the highchartsfunction, i'm using await getData, so the chart can only be rendered after getting the data for it. All functions are async. On that one page i'm having seven charts, all constructed using the syntax following below, each with its own getData function and div container.
Two problems:
Problem No.1:
The charts are not getting displayed until i refresh the page and often times i even have to refresh it several times, till every chart is getting shown at a time (Like 20 times). The functions are all executed, i checked that in the console.
Problem No.2:
I would like to write this dynamically, as i want to have multiple pages on my website, each using its own csv file, but basically the same code.
*Edit:
From time to time i receive: "Error: Highcharts error #13: www.highcharts.com/errors/13/" in the console, but as i keep refreshing it changes the line/js it is referencing to. It always is the part of the highcharts function, in which i give it its container Highcharts.chart('hammerchart', {. I checked this error and what it sais is basically, that the script can't find a container with the #id. Which i don't understand as im using "DOMContentLoaded". I tried the "load" event instead, which solved the error #13, but ended up in no chart getting displayed at all without any error message.
*Edit2:
Until now i only used firefox to view my website. I checked Chrome aswell and here i don't have any error message, but it also never shows any of the charts aswell at all.
If someone could help me out here, i would be really happy, as i tried to fix this for days now with no success. I'm also open for suggestions, regarding the handling of my data. Thank you veeeery much in advance!!
Code:
CSV Data sample
2015,2.5,7.2,1.6,6.5,2.2
2016,3.5,7.6,2.6,9.3,1.2
2017,2.5,7.2,1.6,6.5,2.2
2018,3.5,7.6,2.6,9.3,1.2
2019,2.5,7.2,1.6,6.5,2.2
HTML
<div id="hammerchart">
</div>
CSS
#hammerchart{
width:49%;
height: 500px;
margin:0.5%;
margin-top:50px;
flex: 1 1 600px;
}
Javascript - first declaration of the arrays, then my parsing function, splitting the csv by linebreaks and commas. Then i'm using parseFloat(), so that i don't have strings in it. In the highcharts function i'm using await getData and DOMContentloaded, to make sure both html and my data are ready.
const years = [];
const columntwos = [];
const columnthrees = [];
const columnfours = [];
const columnfives = [];
const columnsixs = [];
async function getDataone() {
const response = await fetch('/javascripts/hammerchart.CSV');
const data = await response.text();
const table = data.split('\n');
table.forEach(row => {
const columns = row.split(',');
const year = columns[0];
years.push(year);
const columntwo = columns[1];
columntwos.push(parseFloat(columntwo));
const columnthree = columns[2];
columnthrees.push(parseFloat(columnthree));
const columnfour = columns[3];
columnfours.push(parseFloat(columnfour));
const columnfive = columns[4];
columnfives.push(parseFloat(columnfive));
const columnsix = columns[5];
columnsixs.push(parseFloat(columnsix));
});
};
async function hammerchart() {
await getDataone();
document.addEventListener('DOMContentLoaded', () => {
Highcharts.chart('hammerchart', {
chart: {
zoomType: 'xy'
},
title: {
text: 'Data'
},
subtitle: {
text: ''
},
credits: {
text: 'highcharts',
},
xAxis: [{
categories: years,
plotBands: [{ // visualize
from: 4.5,
to: 6,
color: 'rgba(68, 170, 213, .2)'
}],
crosshair: true
}],
yAxis: [{ // Primary yAxis
labels: {
format: '{value}$',
style: {
color: Highcharts.getOptions().colors[1]
}
},
title: {
text: 'Amount in $',
style: {
color: Highcharts.getOptions().colors[1]
}
}
}, { // Secondary yAxis
title: {
text: 'Ratio in %',
style: {
color: Highcharts.getOptions().colors[0]
}
},
labels: {
format: '{value} %',
style: {
color: Highcharts.getOptions().colors[0]
}
},
opposite: true
}],
tooltip: {
shared: true
},
legend: {
layout: 'vertical',
align: 'left',
x: 120,
verticalAlign: 'top',
y: 100,
floating: true,
backgroundColor:
Highcharts.defaultOptions.legend.backgroundColor || // theme
'rgba(255,255,255,0.25)'
},
series: [{
name: 'columntwo',
type: 'areaspline',
data: columntwos,
tooltip: {
valueSuffix: '$'
}
}, {
name: 'columnthree',
type: 'areaspline',
data: columnthrees,
tooltip: {
valueSuffix: '$'
}
}, {
name: 'columnfour',
type: 'areaspline',
data: columnfours,
tooltip: {
valueSuffix: '$'
}
}, {
name: 'columnfive',
type: 'column',
data: columnfives,
tooltip: {
valueSuffix: '$'
}
}, {
name: 'columnsix',
type: 'spline',
yAxis: 1,
data: columnsixs,
tooltip: {
valueSuffix: '%'
}
}]
});
});
};
hammerchart();
I have a Stacked % Column Highchart which without Hyperlinks on data sets works perfectly, however I need to link away to another page from the chart, If it was a standard column chart, I would have no issue (I have one already). But i cannot seem to work out why I'm getting an undefined error on the link.
Ive searched around for a working example but havent been able to find one matching the stacked percentage column.
I've setup a fiddle to indicate where im up to, any help appreciated.
$(function () {
$('#container').highcharts({
chart: {
type: 'column'
},
title: {
text: 'Space Overview'
},
xAxis: {
categories: ['a', 'b', 'c', 'd']
},
yAxis: {
min: 0,
title: {
text: 'Total Space (%)'
}
},
tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y}</b> ({point.percentage:.0f}%)<br/>',
shared: true
},
plotOptions: {
column: {
stacking: 'percent'
},
series: {
cursor: 'pointer',
point: {
events: {
click: function() {
location.href = this.options.url;
}
}
}
}
},
subtitle: {
text: '+ Items relate to items in the dispay cabinets.',
align: 'left',
x: 10
},
series: [{
name: 'Free',
data: [1498, 1123, 556, 1176],
url: ['Spaces.aspx?box=a', 'Spaces.aspx?box=b', 'Spaces.aspx?box=c', 'Spaces.aspx?box=d']
}, {
name: 'Used',
data: [1234,233,23,759],
url: ['Spaces.aspx?box=a', 'Spaces.aspx?box=b', 'Spaces.aspx?box=c', 'Spaces.aspx?box=d']
}]
});
http://jsfiddle.net/Mooglekins/qv8z5a2o/
This is a great question! I did some digging and think I've found a good solution for you.
First, I needed to update how you defined the custom value in your series. To capture certain values in events, I moved the url attribute within each data point. So now, each point has their y value and the new url value.
(Note: I used dummy URLs here since I wouldn't be able to connect to the ones you provided outside your website.)
series: [{
name: 'Free',
data: [
{ y: 1498, url: 'http://www.google.com' },
{ y: 1123, url: 'http://www.yahoo.com' },
{ y: 556, url: 'http://www.bing.com' },
{ y: 1176, url: 'http://www.msn.com' }
]
}, {
// second series here
}
]
Next, I updated your events call. Now that we've moved the url attribute to each point, we can refer to that value as point.url (as you could the y value using point.y).
What I also did here is use window.open vs. window.location. This will be a better experience for your users so they don't lose sight of the chart. Keep this if you wish.
plotOptions: {
column: {
stacking: 'percent'
},
series: {
cursor: 'pointer',
point: {
events: {
click: function (event) {
window.open(event.point.url);
}
}
}
}
}
Here's your updated fiddle with these changes: http://jsfiddle.net/brightmatrix/qv8z5a2o/5/
I hope this helps!
I am attempting to take the example produced by Highcharts here http://www.highcharts.com/maps/demo/color-axis and substitute the data loaded by the $.getJson with a local JSON file called 'testdata1.json'.
The code I've modified below produces no errors yet the map does not render. I think it's because the testdata1.json is loaded late, after the javascript is executed. If so, is there a better way I should be doing this -- perhaps waiting for the data to load before executing the JS file? I attempted to do this by placing a
$(document).ready(
in front of the function but it didn't work. Any thoughts are greatly appreciated, I think it's something relatively minor that is just escaping me.
Thank you.
$(function () {
// Map options
var options = {
chart : {
renderTo: '#map',
borderWidth : 1
},
title : {
text : 'US population density (/km²)'
},
legend: {
layout: 'horizontal',
borderWidth: 0,
backgroundColor: 'rgba(255,255,255,0.85)',
floating: true,
verticalAlign: 'top',
y: 25
},
mapNavigation: {
enabled: true
},
colorAxis: {
min: 1,
type: 'logarithmic',
minColor: '#EEEEFF',
maxColor: '#000022',
stops: [
[0, '#EFEFFF'],
[0.67, '#4444FF'],
[1, '#000022']
]
},
series : [{
animation: {
duration: 1000
},
mapData: Highcharts.maps['countries/us/us-all'],
joinBy: ['postal-code', 'code'],
dataLabels: {
enabled: true,
color: 'white',
format: '{point.code}'
},
name: 'Population density',
tooltip: {
pointFormat: '{point.code}: {point.value}/km²'
}
}]
};
$.getJSON('static/data/testdata1.json', function (data) {
// Make codes uppercase to match the map data
$.each(data, function () {
this.code = this.code.toUpperCase();
});
options.series.data= data;
var chart = new Highcharts.Chart(options)
});
});
You have three problems. Here's a fiddle based on their sample that uses your approach, but still uses their data, and works: http://jsfiddle.net/g29k24vw/1/
Here are the important parts:
chart : {
renderTo: 'container',
borderWidth : 1,
type: 'map'
},
And:
$.getJSON('http://www.highcharts.com/samples/data/jsonp.php?filename=us-population-density.json&callback=?', function (data) {
// Make codes uppercase to match the map data
$.each(data, function () {
this.code = this.code.toUpperCase();
});
options.series[0].data= data;
var chart = new Highcharts.Chart(options);
});
Note the differences here:
You need to specify the chart type in options if you're going to instantiate the chart object directly instead of using the jQuery helper.
renderTo doesn't want a hash in front of the element name.
options.series[0].data, not options.series.data...series is actually an array of objects.
I'm attempting to combine a couple of different chart demos from Highcharts.
My examples are: Data classes and popup and Small US with data labels
I want the map from the first with the popup feature of the second. I need to connect the map to my own google spreadsheet but for now I'm just trying to get the data from the first example to work.
This is what I have so far but can't seem to get any data in the map. I thought I had a joinBy problem, and I may still, but when I set joinBy to null I thought "the map items are joined by their position in the array", yet nothing happened.
https://jsfiddle.net/9eq6mydv/
$(function () {
// Load the data from a Google Spreadsheet
// https://docs.google.com/a/highsoft.com/spreadsheet/pub?hl=en_GB&hl=en_GB&key=0AoIaUO7wH1HwdFJHaFI4eUJDYlVna3k5TlpuXzZubHc&output=html
Highcharts.data({
googleSpreadsheetKey: '0AoIaUO7wH1HwdDFXSlpjN2J4aGg5MkVHWVhsYmtyVWc',
googleSpreadsheetWorksheet: 1,
// custom handler for columns
parsed: function (columns) {
// Make the columns easier to read
var keys = columns[0],
names = columns[1],
percent = columns[10],
// Initiate the chart
options = {
chart : {
renderTo: 'container',
type: 'map',
borderWidth : 1
},
title : {
text : 'US presidential election 2008 result'
},
subtitle: {
text: 'Source: <a href="http://en.wikipedia.org/wiki/United_States_presidential_election,' +
'_2008#Election_results">Wikipedia</a>'
},
mapNavigation: {
enabled: true,
enableButtons: false
},
legend: {
align: 'right',
verticalAlign: 'top',
x: -100,
y: 70,
floating: true,
layout: 'vertical',
valueDecimals: 0,
backgroundColor: (Highcharts.theme && Highcharts.theme.legendBackgroundColor) || 'rgba(255, 255, 255, 0.85)'
},
colorAxis: {
dataClasses: [{
from: -100,
to: 0,
color: '#C40401',
name: 'McCain'
}, {
from: 0,
to: 100,
color: '#0200D0',
name: 'Obama'
}]
},
series : [{
data : data,
dataLabels: {
enabled: true,
color: '#FFFFFF',
format: '{point.code}',
style: {
textTransform: 'uppercase'
}
},
mapData: Highcharts.geojson(Highcharts.maps['countries/us/custom/us-small']),
joinBy: keys,
name: 'Democrats margin',
point: {
events: {
click: pointClick
}
},
tooltip: {
ySuffix: ' %'
},
cursor: 'pointer'
}, {
type: 'mapline',
data: Highcharts.geojson(Highcharts.maps['countries/us/custom/us-small'], 'mapline'),
color: 'silver'
}]
};
/**
* Event handler for clicking points. Use jQuery UI to pop up
* a pie chart showing the details for each state.
*/
function pointClick() {
var row = this.options.row,
$div = $('<div></div>')
.dialog({
title: this.name,
width: 400,
height: 300
});
window.chart = new Highcharts.Chart({
chart: {
renderTo: $div[0],
type: 'pie',
width: 370,
height: 240
},
title: {
text: null
},
series: [{
name: 'Votes',
data: [{
name: 'Obama',
color: '#0200D0',
y: parseInt(columns[3][row], 10)
}, {
name: 'McCain',
color: '#C40401',
y: parseInt(columns[4][row], 10)
}],
dataLabels: {
format: '<b>{point.name}</b> {point.percentage:.1f}%'
}
}]
});
}
// Read the columns into the data array
var data = [];
$.each(keys, function (i, key) {
data.push({
key: key,//.toUpperCase(),
value: parseFloat(percent[i]),
name: names,
row: i
});
});
// Initiate the chart
window.chart = new Highcharts.Map(options);
},
error: function () {
$('#container').html('<div class="loading">' +
'<i class="icon-frown icon-large"></i> ' +
'Error loading data from Google Spreadsheets' +
'</div>');
}
});
});
UPDATE:
I wanted to share with everyone my final solution. Although Ondkloss did a magnificent job answering my question the popup feature still didn't work and this is because I forgot to include the jQuery for the .dialog call. Once I included that I had an empty popup with a highchart error 17, this is because the highmaps.js code doesn't include the pie chart class. So I had to add the highcharts.js code and include map.js module afterward. You can see my final jsfiddle here.
Thanks again to Ondkloss for the excellent answer!
The problem here mostly comes down to the use of joinBy. Also to correct it there are some required changes to your data and mapData.
Currently your joinBy is an array of strings, like ["al", "ak", ...]. This is quite simply not an accepted format of the joinBy option. You can read up on the details in the API documentation, but the simplest approach is to have a attribute in common in data and mapData and then supply a string in joinBy which then joins those two arrays by that attribute. For example:
series : [{
data : data,
mapData: mapData,
joinBy: "hc-key",
]
Here the "hc-key" attribute must exist in both data and mapData.
Here's how I'd create the data variable in your code:
var data = [];
$.each(keys, function (i, key) {
if(i != 0)
data.push({
"hc-key": "us-"+key,
code: key.toUpperCase(),
value: parseFloat(percent[i]),
name: names[i],
row: i
});
});
This skips the first key, which is just "Key" (the title of the column). Here we make the "hc-key" fit the format of the "hc-key" in our map data. An example would be "us-al". The rest is just metadata that will be joined in. Note that you were referencing your data in the options prior to filling it with data, so this has to be moved prior to this.
This is how I'd create the mapData variable in your code:
var mapData = Highcharts.geojson(Highcharts.maps['countries/us/custom/us-small']);
// Process mapdata
$.each(mapData, function () {
var path = this.path,
copy = { path: path };
// This point has a square legend to the right
if (path[1] === 9727) {
// Identify the box
Highcharts.seriesTypes.map.prototype.getBox.call(0, [copy]);
// Place the center of the data label in the center of the point legend box
this.middleX = ((path[1] + path[4]) / 2 - copy._minX) / (copy._maxX - copy._minX);
this.middleY = ((path[2] + path[7]) / 2 - copy._minY) / (copy._maxY - copy._minY);
}
// Tag it for joining
this.ucName = this.name.toUpperCase();
});
The first part is your "standard map data". The rest is to correctly center the labels for the popout states, and gotten directly from the example.
And voila, see this JSFiddle demonstration to witness your map in action.
I suggest doing some console.log-ing to see how data and mapData have the hc-key in common and that leads to the joining of the data in the series.
I have the following scenario in haml:
#ownershipChart{"chart-data" => [["pie1", 100], ["pie2", 150], ["pie3", 200]]}
#ownershipChart{"chart-data" => [["pie4", 45], ["pie5", 50], ["pie6", 20]]}
and in javascript:
$(function(){
$('#ownershipChart').highcharts({
chart: {
type: 'pie'
},
title:{
text: 'Ownership'
},
plotOptions:{
pie:{
allowPointSelect: true
}
},
series: [{
type: 'pie',
name: 'Ownership',
data: $('#ownershipChart').attr('chart-data')
}]
});
});
As you can figure, I'm trying to create one highcharts function that applies across these two charts at the same time. First, I know this is incorrect because $('#ownershipChart').attr('chart-data') isn't returning anything. Second, is this the right way to think about it? I'm currently dynamically generating the haml div id="ownershipChart" so dynamically generating a highcharts js object every time also feels wrong.
What's the best way to generate multiple highcharts when the div ids they are attached to is unknown and varies user by user?
You could instead use a class, and loop through each instance creating the chart as you go. Something like this:
$(function () {
$('.ownershipChart').each(function() {
$(this).highcharts({
chart: {
type: 'pie'
},
title: {
text: 'Ownership'
},
plotOptions: {
pie: {
allowPointSelect: true
}
},
series: [{
type: 'pie',
name: 'Ownership',
data: $(this).attr('chart-data')
}]
});
});
});
Note that the data property is filled by a reference to this, which means the data will be read from the current element in the iteration.