Develop Reference

Getting the tooltip values from Highchart graph in the source code

I want to get the Vacancies and Vacancy Rate values that appear in the tooltip when the cursor hovers over this graph, however ideally I want to grab it straight from the source code. I found a dictionary in the code, though its values are different to what appears in the tooltip.
Eg Value in dict: 34, Value in tooltip: 1
Eg Value in dict: 1055.6270096463, Value in tooltip: 15.8
I'm guessing the values are being changed by some function, though I can't find it in the code. Below is the section of code relating to the tooltip. Any help would be appreciated.
...
var xmin=$( window ).width()>1000 ? 1209564000000:1504188000000;
function _f(n) {
return 3.8*n*(1-n);
}
$(function () {
Highcharts.setOptions({
global: {
// display dates in local time (hourly graph should start at midnight if in california)
useUTC: false
},
lang: {
thousandsSep: ','
}
});
});
Highcharts.chart('hichartcontainer', {
chart: {
type: 'line',
zoomType: 'x'
},
colors: [ '#0a94ff', '#a004a0', '#ff00ff', '#a004a0', '#1aadce', '#492970', '#f28f43', '#77a1e5', '#c42525', '#a6c96a'],
title: {
text: 'Residential Vacancy Rates',
},
subtitle: {
text: 'Source: SQM Research'
},
xAxis: {
type: 'datetime',
dateTimeLabelFormats: {
},
scrollbar: {
enabled: true
},
tickInterval: 1000 * 60 * 60 * 24 * 365,
//min:xmin // enable this to have mob fone show 2 yr only
},
yAxis: [{
min: 0,
// max:200, work this out in php for fixed y axis
title: {
text: 'Vacancies'
}
},
{
min: 0,
// max:10, work this out in phpfor fixed y axis
title: {
text: 'Vacancy Rate (%)'
},
opposite:true
}
],
legend: {
align: 'right',
x: -30,
verticalAlign: 'top',
y: 25,
floating: true,
backgroundColor: (Highcharts.theme && Highcharts.theme.background2) || 'white',
borderColor: '#CCC',
borderWidth: 1,
shadow: false
},
plotOptions: {
series: {
dataLabels: {
enabled: false
},
getExtremesFromAll:true
}
},
series: [ {
name: 'Vacancies',
type: 'column',
yAxis: 0,
tooltip: {
headerFormat: '<b>{point.key}</b><br/>',
pointFormat: '{series.name}: {point.y}',
xDateFormat:'%b %Y'
},
data: [[1209564000000,34],[1212242400000,0],[1214834400000,0],[1217512800000,0],[1220191200000,0],[1222783200000,0],[1225458000000,0],[1228050000000,0],[1230728400000,0],[1233406800000,0],[1235826000000,0],[1238504400000,0],[1241100000000,0],[1243778400000,22],[1246370400000,0],[1249048800000,1445],[1251727200000,768],[1254319200000,1330],[1256994000000,380],[1259586000000,1740],[1262264400000,2325],[1264942800000,600],[1267362000000,1440],[1270040400000,3542],[1272636000000,3283],[1275314400000,2100],[1277906400000,1508],[1280584800000,2185],[1283263200000,817],[1285855200000,2030],[1288530000000,2604],[1291122000000,750],[1293800400000,1800],[1296478800000,1540],[1298898000000,1943],[1301576400000,2772],[1304172000000,1508],[1306850400000,2185],[1309442400000,414],[1312120800000,1254],[1314799200000,2418],[1317391200000,408],[1320066000000,1190],[1322658000000,1360],[1325336400000,1020],[1328014800000,1365],[1330520400000,416],[1333198800000,1230],[1335794400000,1008],[1338472800000,1504],[1341064800000,374],[1343743200000,1386],[1346421600000,1445],[1349013600000,564],[1351688400000,1045],[1354280400000,399],[1356958800000,1239],[1359637200000,1288],[1362056400000,405],[1364734800000,1596],[1367330400000,1470],[1370008800000,1600],[1372600800000,1736],[1375279200000,1710],[1377957600000,560],[1380549600000,1392],[1383224400000,836],[1385816400000,2632],[1388494800000,396],[1391173200000,1518],[1393592400000,2295],[1396270800000,1128],[1398866400000,1995],[1401544800000,266],[1404136800000,1121],[1406815200000,2024],[1409493600000,588],[1412085600000,1140],[1414760400000,966],[1417352400000,1377],[1420030800000,708],[1422709200000,1104],[1425128400000,464],[1427806800000,858],[1430402400000,320],[1433080800000,522],[1435672800000,294],[1438351200000,1116],[1441029600000,286],[1443621600000,360],[1446296400000,1140],[1448888400000,1173],[1451566800000,1215],[1454245200000,826],[1456750800000,920],[1459429200000,203],[1462024800000,390],[1464703200000,320],[1467295200000,348],[1469973600000,126],[1472652000000,186],[1475244000000,78],[1477918800000,511],[1480510800000,1036],[1483189200000,720],[1485867600000,380],[1488286800000,280],[1490965200000,240],[1493560800000,840],[1496239200000,1547],[1498831200000,510],[1501509600000,1360],[1504188000000,682],[1506780000000,540],[1509454800000,315],[1512046800000,516],[1514725200000,184],[1517403600000,658],[1519822800000,160],[1522501200000,310],[1525096800000,270],[1527775200000,102],[1530367200000,0],[1533045600000,94],[1535724000000,190],[1538316000000,60],[1540990800000,180],[1543582800000,273],[1546261200000,30],[1548939600000,0],[1551358800000,186],[1554037200000,180],[1556632800000,36],[1559311200000,261],[1561903200000,42],[1564581600000,0]] },
{
name: 'Vacancy Rate',
type: 'line',
yAxis: 1,
tooltip: {
headerFormat: '<b>{point.key}</b><br/>',
pointFormat: '{series.name}: {point.y:,.1f}%',
xDateFormat:'%b %Y'
},
data: [[1209564000000,11.221122112211],[1212242400000,0],[1214834400000,0],[1217512800000,0],[1220191200000,0],[1222783200000,0],[1225458000000,0],[1228050000000,0],[1230728400000,0],[1233406800000,0],[1235826000000,0],[1238504400000,0],[1241100000000,0],[1243778400000,7.1661237785016],[1246370400000,0],[1249048800000,469.15584415584],[1251727200000,249.35064935065],[1254319200000,431.81818181818],[1256994000000,122.97734627832],[1259586000000,563.1067961165],[1262264400000,752.42718446602],[1264942800000,193.54838709677],[1267362000000,464.51612903226],[1270040400000,1142.5806451613],[1272636000000,1055.6270096463],[1275314400000,675.24115755627],[1277906400000,484.88745980707],[1280584800000,702.57234726688],[1283263200000,261.85897435897],[1285855200000,650.64102564103],[1288530000000,834.61538461538],[1291122000000,239.61661341853],[1293800400000,575.07987220447],[1296478800000,492.01277955272],[1298898000000,618.7898089172],[1301576400000,882.8025477707],[1304172000000,480.25477707006],[1306850400000,695.85987261146],[1309442400000,131.42857142857],[1312120800000,398.09523809524],[1314799200000,767.61904761905],[1317391200000,129.52380952381],[1320066000000,376.58227848101],[1322658000000,430.37974683544],[1325336400000,322.78481012658],[1328014800000,431.96202531646],[1330520400000,131.64556962025],[1333198800000,389.24050632911],[1335794400000,317.98107255521],[1338472800000,474.44794952681],[1341064800000,117.98107255521],[1343743200000,437.22397476341],[1346421600000,455.83596214511],[1349013600000,177.35849056604],[1351688400000,328.61635220126],[1354280400000,125.47169811321],[1356958800000,389.62264150943],[1359637200000,405.03144654088],[1362056400000,127.35849056604],[1364734800000,500.31347962382],[1367330400000,460.81504702194],[1370008800000,501.56739811912],[1372600800000,544.20062695925],[1375279200000,536.05015673981],[1377957600000,175],[1380549600000,435],[1383224400000,261.25],[1385816400000,822.5],[1388494800000,123.75],[1391173200000,472.89719626168],[1393592400000,714.95327102804],[1396270800000,351.40186915888],[1398866400000,621.4953271028],[1401544800000,82.866043613707],[1404136800000,349.22118380062],[1406815200000,628.57142857143],[1409493600000,182.60869565217],[1412085600000,354.03726708075],[1414760400000,300],[1417352400000,427.6397515528],[1420030800000,219.19504643963],[1422709200000,341.79566563467],[1425128400000,143.65325077399],[1427806800000,265.6346749226],[1430402400000,99.071207430341],[1433080800000,161.60990712074],[1435672800000,90.740740740741],[1438351200000,344.44444444444],[1441029600000,88.271604938272],[1443621600000,111.11111111111],[1446296400000,351.85185185185],[1448888400000,360.92307692308],[1451566800000,373.84615384615],[1454245200000,254.15384615385],[1456750800000,283.07692307692],[1459429200000,62.461538461538],[1462024800000,120],[1464703200000,98.159509202454],[1467295200000,106.74846625767],[1469973600000,38.650306748466],[1472652000000,57.055214723926],[1475244000000,23.926380368098],[1477918800000,156.26911314985],[1480510800000,316.81957186544],[1483189200000,220.18348623853],[1485867600000,116.20795107034],[1488286800000,85.626911314985],[1490965200000,73.394495412844],[1493560800000,256.09756097561],[1496239200000,471.64634146341],[1498831200000,155.48780487805],[1501509600000,414.63414634146],[1504188000000,207.92682926829],[1506780000000,164.13373860182],[1509454800000,95.744680851064],[1512046800000,156.83890577508],[1514725200000,55.927051671733],[1517403600000,200],[1519822800000,48.632218844985],[1522501200000,93.939393939394],[1525096800000,81.818181818182],[1527775200000,30.909090909091],[1530367200000,0],[1533045600000,28.484848484848],[1535724000000,57.401812688822],[1538316000000,18.126888217523],[1540990800000,54.380664652568],[1543582800000,82.477341389728],[1546261200000,9.0634441087613],[1548939600000,0],[1551358800000,56.024096385542],[1554037200000,54.21686746988],[1556632800000,10.843373493976],[1559311200000,78.614457831325],[1561903200000,12.650602409639],[1564581600000,0]] }
]
});
...

How to plot line per category in highcharts?

I'm trying to figure out if there is some way to plot a line per category in highcharts, i've tried for a while following this doc and my current chart looks like this:
What i want to achieve is something like this:
with each line stoping on the next category, this way i can set "goals" per category.
My code so far
Highcharts.chart('container', {
chart: {
type: 'bar'
},
title: {
text: 'Historic World Population by Region'
},
subtitle: {
text: 'Source: Wikipedia.org'
},
xAxis: {
categories: ['Africa', 'America', 'Asia', 'Europe', 'Oceania'],
title: {
text: null
}
},
yAxis: {
min: 0,
title: {
text: 'Population (millions)',
align: 'high'
},
labels: {
overflow: 'justify'
},
plotLines: [{
color: 'red',
value: 300,
width: 2
}]
},
tooltip: {
valueSuffix: ' millions'
},
plotOptions: {
bar: {
dataLabels: {
enabled: false
}
}
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'top',
x: -40,
y: 80,
floating: true,
borderWidth: 1,
backgroundColor: ((Highcharts.theme && Highcharts.theme.legendBackgroundColor) || '#FFFFFF'),
shadow: true
},
credits: {
enabled: false
},
series: [{
name: 'Gastos',
data: [107, 31, 635, 203, 2],
color: '#f25a41'
}, {
name: 'Renda',
data: [133, 156, 947, 408, 6],
color: '#5c90f9'
}]
});

The easiest way would be to create custom marker for each category using Renderer.path() function.
API Reference:
http://api.highcharts.com/highcharts/Renderer.path
Example:
https://jsfiddle.net/809y2wcn/

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.

Remove space in bar charts in high charts for undefined values

I'm creating a bar chart using high charts. Here is a sample: http://jsfiddle.net/anishantha87/kfg5c/3/
$(function () {
$('#container').highcharts({
chart: {
type: 'bar'
},
title: {
text: 'Historic World Population by Region'
},
subtitle: {
text: 'Source: Wikipedia.org'
},
xAxis: {
categories: ['Europe', 'Oceania','France'],
title: {
text: null
}
},
yAxis: {
min: 0,
title: {
text: 'Population (millions)',
align: 'high'
},
labels: {
overflow: 'justify'
}
},
tooltip: {
valueSuffix: ' millions'
},
plotOptions: {
bar: {
dataLabels: {
enabled: true
}
},
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'top',
x: -40,
y: 100,
floating: true,
borderWidth: 1,
backgroundColor: '#FFFFFF',
shadow: true
},
credits: {
enabled: false
},
series: [{
name: 'Year 1800',
data: [ 203, 200,200]
}, {
name: 'Year 1900',
data: [ 408, 60,null]
}, {
name: 'Year 2008',
data: [ 732, 34,null]
}]
});
});
In that I have null value for France. It displays the bar down below the France.(not vertically aligned with the Y axis name)
Any suggestions pls?

Hide Numbers when category is null

Kindly take a look at following fiddle in which i tried to remove the categories but on removing categories its placing numbers instead of it by default and also showing those numbers in tooltip.
All I am trying to do is that categories or numbers doesnot display on chart or on tooltip and only stackedbar appears on the chart , So kindly let me know how can i do it .Thanks,
http://jsfiddle.net/EJFsH/3/
$(function () {
var data = [ {
name: 'Year 2008',
data: [0, 914, 4054, 732, 34]
}];
data = $.grep(data, function (category) {
return $.grep(category.data, function (item) {
return item > 0;
}).length > 0;
});
$('#container').highcharts({
chart: {
type: 'bar'
},
title: {
text: 'Historic World Population by Region'
},
subtitle: {
text: 'Source: Wikipedia.org'
},
xAxis: {
title: {
text: null
}
},
yAxis: {
min: 0,
title: {
text: 'Population (millions)',
align: 'high'
},
labels: {
overflow: 'justify'
}
},
tooltip: {
valueSuffix: ' millions'
},
plotOptions: {
bar: {
dataLabels: {
enabled: true
}
}
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'top',
x: -100,
y: 100,
floating: true,
borderWidth: 1,
backgroundColor: '#FFFFFF',
shadow: true
},
credits: {
enabled: false
},
series: data
});
});

I'm not 100% sure of what you are asking for. But, to turn off the XAxis or yAxis labels, juse labels : {enabled:false} and to change the tooltips use tooltip:{formatter: function() {...}}
see this fiddle:
http://jsfiddle.net/6ypq4/
xAxis: {
title: {
text: null
},
labels : {
enabled: false
}
},
yAxis: {
min: 0,
title: {
text: 'Population (millions)',
align: 'high'
},
labels: {
overflow: 'justify',
enabled: false
}
},
tooltip: {
formatter: function() {
return this.y + ' millions';
}
},