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]] }
]
});
...

Highchart show results without comma for individual line

Hi there I would like to draw a chart with a three lines in Highchart. Two of them can shows results as shown in the data [4.12,3.34,5.45] / [3.45,5.45,3.23] but the third line should be visibe without any comma. Resuls should be like [7,4,2]
code:
$(function () {
$('#container').highcharts({
title: {
text: '',
x: -20 //center
},
colors: ['blue', 'red'],
plotOptions: {
line: {
lineWidth: 3
},
tooltip: {
hideDelay: 200
}
},
subtitle: {
text: '',
x: -20
},
xAxis: {
categories: [
''
]
},
yAxis: [{
min: 0,
title: {
text: ''
}
}, {
title: {
text: ''
},
opposite: true
}],
tooltip: {
pointFormat: '<span style="color:{series.color}">{series.name}</span>: <b>{point.y:.0f} h</b><br/>',
valueSuffix: ' h',
crosshairs: true,
shared: true
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle',
borderWidth: 1
},
plotOptions: {
line: {
dataLabels: {
enabled: true,
formatter: function () {
return Highcharts.numberFormat(this.y,2);
}
},
enableMouseTracking: true
}
},
series: [{
name: '1',
color: 'rgba(51, 204, 204, 0.75)',
lineWidth: 2,
data: [4.12,3.34,5.45]
}, {
name: '2',
color: 'rgba(255, 77, 77,0.75)',
marker: {
radius: 6
},
data: [3.45,5.45,3.23]
},{
name: '3',
color:'#bfbfbf',
marker: {
radius: 6
},
data: [7.34,4.23,1.78]
}]
});
});
http://jsfiddle.net/bmv5e8v7/3/
Can you guys help in this?

In addition to what #BarbaraLaird wrote, you can also define format of data labels for only one series, like this:
dataLabels: {
format: '{y:.0f}'
}
API Reference:
http://api.highcharts.com/highcharts/plotOptions.series.dataLabels.format
Example:
http://jsfiddle.net/ozvgfkj0/

You can add a conditional to your dataLabels formatter function:
dataLabels: {
enabled: true,
formatter: function() {
if (this.series.name == '3')
return Highcharts.numberFormat(this.y, 0);
else
return Highcharts.numberFormat(this.y, 2);
}
},
http://jsfiddle.net/blaird/bmv5e8v7/4/

Slow loading data highstock

I have trouble with performance of my highstock. All works, but time of plotting of my data is too slow, about 30 seconds. JSON is about 30000 points. Maybe problem in how I draw this data ? I already turn off animation, shadow, marks etc.
And here is my JS code:
$(function() {
Highcharts.setOptions({
global: {
useUTC: false,
timezoneOffset: - 3 * 60
}
});
function requestData() {
$.ajax({
url: 'values.php',
success: function(series) {
chart.addSeries({name: 'Temp1', data: series[0], yAxis:0}, false);
chart.addSeries({name: 'Temp2', data: series[1], yAxis:0}, false);
chart.redraw();
},
cache: false
});
}
chart = new Highcharts.StockChart({
chart: {
animation: false,
zoomType: 'xy',
renderTo: 'container',
events: {
load: requestData
}
},
title: {
text: 'Temperatures from DS18B20',
x: -20
},
plotOptions: {
spline: {
turboThreshold: 50000
}
},
rangeSelector: {
allButtonsEnabled: true,
buttons: [{
type: 'minute',
count: 10,
text: '10min'
}, {
type: 'minute',
count: 30,
text: '30min'
}, {
type: 'all',
text: 'all'
}],
buttonTheme: {
width:60
},
selected: 2
},
xAxis: {
type: 'datetime',
categories: true,
ordinal: false,
// tickInterval: 100*3600,
minTickInterval:100000,
labels: {
align: 'center',
formatter:function(){
return Highcharts.dateFormat('%H:%M:%S',this.value);
}
}
},
yAxis: {
labels: {
format: '{value}°C',
style: {
color: Highcharts.getOptions().colors[0]
}
},
title: {
text: 'Temperature',
style: {
color: Highcharts.getOptions().colors[0]
}
},
opposite: false
},
legend: {
enabled: true,
align: 'right',
backgroundColor: '#DBFFDB',
borderColor: 'black',
borderWidth: 2,
layout: 'vertical',
verticalAlign: 'top',
y: 200,
shadow: true
},
tooltip: {
shared: true
},
series: []
});
});

X-axis interval in Highcharts

I have this highchart graph displayed on my website. How can I set an interval for my x-axis? e.g. I want the fist value to be displayed and then skip the second and display the third.
Can this be done? Or do you always just HAVE to display all the data you're passing to the axis in an array?
My code: (timestamp is a JS array that contains my time. I can get that time in epoch format. act and temps are arrays for data to be plotted along y-axis)
$(function () {
$('#tempactgraph').highcharts({
chart: {
zoomType: 'xy'
},
title: {
text: 'Temperature & Activity Monitoring '
},
subtitle: {
text: 'Source: Cowlar Sensors'
},
xAxis: [{
categories: timestamp,
crosshair: true
}],
yAxis: [{ // Primary yAxis
labels: {
format: '{value}°C',
style: {
color: Highcharts.getOptions().colors[1]
}
},
title: {
text: 'Temperature',
style: {
color: Highcharts.getOptions().colors[1]
}
}
}, { // Secondary yAxis
title: {
text: 'Activity',
style: {
color: Highcharts.getOptions().colors[0]
}
},
labels: {
format: '{value} xx',
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.theme && Highcharts.theme.legendBackgroundColor) || '#FFFFFF'
},
series: [{
name: 'Activities',
type: 'spline',
connectNulls: 1,
yAxis: 1,
data: act,
tooltip: {
valueSuffix: ' xx'
}
}, {
name: 'Temperature',
type: 'spline',
connectNulls: 1,
data: temps,
tooltip: {
valueSuffix: '°C'
}
}]
});
});

You need to Add a tickInterval:2 to your x-axis decleration like so
xAxis: [{
categories: timestamp,
crosshair: true,
tickInterval: 2
}],
Highcharts API Reference

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.