javascriptchartsdevexpresstooltipdevextreme
Customize tooltip in dxChart
I'm doing my first steps with dxchart of DevExtreme. At the moment I've got follow code:
HTML:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>DevExtreme Chart</title>
<!--FRAMEWOKR-->
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/2.2.3/jquery.min.js"></script>
<script src="./lib/globalize.min.js"></script>
<script src="./lib/dx.charts.js"></script>
<!--JS-->
<script type="text/javascript" src="chart.js"></script>
</head>
<body>
<div id="chartContainer" style="width:100%; height: 440px"></div>
</body>
</html>
JS:
$(document).ready(function(){
var dataSource = [
{
argument: '15.06.2016',
puls: 102,
temperatur: 37.6,
weight: 91
},
{
argument: '16.06.2016',
puls: 99,
temperatur: 35.1,
weight: 88
},
{
argument: '17.06.2016',
puls: 87,
temperatur: 38.0,
weight: 87
},
{
argument: '18.06.2016',
puls: 91,
temperatur: 36.3,
weight: 87
},
{
argument: '19.06.2016',
puls: 112,
temperatur: 37.1,
weight: 90
}
];
$("#chartContainer").dxChart({
dataSource: dataSource,
commonSeriesSettings: {
type: "spline",
label: {
visible: false,
connector: {
visible: false
}
},
argumentField: "argument",
axis: "pulsAxe"
},
tooltip: {
enabled: true,
customizeTooltip: function(obj) {
return {
text: obj.seriesName
}
}
},
legend: {
verticalAlignment: "top",
horizontalAlignment: "right"
},
"export": {
enabled: true
},
title: {
text: "Hugo Amacher | 15.08.1977 (M)",
subtitle: {
enabled: true,
text: "Ich bin ein Untertitel..."
}
},
zoomingMode: "all",
series: [
{
name: "Puls",
valueField: "puls"
},
{
name: "Temperatur",
valueField: "temperatur",
axis: "temperaturAxe"
},
{
name: "Gewicht",
valueField: "weight",
axis: "weightAxe"
}
],
valueAxis: [
{
name: "pulsAxe",
title: "Puls",
position: "left",
label: {
customizeText: function(value) {
return value.value + " bpm"
}
}
},
{
name: "temperaturAxe",
title: "Temperatur",
position: "left",
label: {
customizeText: function(value) {
return value.value + " °C"
}
}
},
{
name: "weightAxe",
title: "Gewicht",
position: "left",
label: {
customizeText: function(value) {
return value.value + " kg"
}
}
}
]
});
});
My result is this:
As you can see, there is a simple spline chart, with three various y-axes and three various value-ranges for this axes on the chart. For each axe, I've got an label (bpm, °C and kg). I implemented also the tooltip of dxchart. At the moment when I hover a point, in the tooltip there is only the value. I also would like to add dynamicly to the tooltip the label after the value. That means, when I hover a value of the axe "Puls", it should show for example this: 91 bpm. How can I do this. I tried it with the customizeTooltip: http://js.devexpress.com/Documentation/ApiReference/Data_Visualization_Widgets/dxChart/Configuration/tooltip/?version=16_1#customizeTooltip
I had the idea, to check the seriesName and assign the label in the return something like this, but it didn't work:
tooltip: {
enabled: true,
customizeTooltip: function(point) {
if (point.seriesName == "Puls") {
return {
text: point.value + " bpm"
}
} else if (point.seriesName == "Gewicht") {
return {
text: point.value + " kg"
}
} else if (point.seriesName == "Temperatur") {
return {
text: point.value + " °C"
}
}
}
},
Solution
Hi please check the Plunker https://plnkr.co/edit/6Uoh30bb8qBNWIIbyX0O?p=preview
check your library includes
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<link rel="stylesheet" href="style.css" />
<script type="text/javascript" src="https://ajax.aspnetcdn.com/ajax/jquery/jquery-2.1.4.min.js"></script>
<script type="text/javascript" src="https://ajax.aspnetcdn.com/ajax/globalize/0.1.1/globalize.min.js"></script>
<script type="text/javascript" src="https://cdn3.devexpress.com/jslib/15.2.5/js/dx.chartjs.js"></script>
<script src="script.js"></script>
</head>
<body>
<div id="chartContainer" style="width:100%; height: 440px"></div>
<!-- Put your html here! -->
</body>
</html>
and JS
// Add your javascript here
$(function(){
var dataSource = [
{
argument: '15.06.2016',
puls: 102,
temperatur: 37.6,
weight: 91
},
{
argument: '16.06.2016',
puls: 99,
temperatur: 35.1,
weight: 88
},
{
argument: '17.06.2016',
puls: 87,
temperatur: 38.0,
weight: 87
},
{
argument: '18.06.2016',
puls: 91,
temperatur: 36.3,
weight: 87
},
{
argument: '19.06.2016',
puls: 112,
temperatur: 37.1,
weight: 90
}
];
$("#chartContainer").dxChart({
dataSource: dataSource,
commonSeriesSettings: {
type: "spline",
label: {
visible: false,
connector: {
visible: false
}
},
argumentField: "argument",
axis: "pulsAxe"
},
tooltip: {
enabled: true,
customizeTooltip: function(obj) {
console.log(obj.seriesName)
if (obj.seriesName == "Puls") {
return {
text: obj.value + " bpm"
}
} else if (obj.seriesName == "Gewicht") {
return {
text: obj.value + " kg"
}
} else if (obj.seriesName == "Temperatur") {
return {
text: obj.value + " °C"
}
}
// return {
// text: obj.seriesName
// }
}
},
legend: {
verticalAlignment: "top",
horizontalAlignment: "right"
},
"export": {
enabled: true
},
title: {
text: "Hugo Amacher | 15.08.1977 (M)",
subtitle: {
enabled: true,
text: "Ich bin ein Untertitel..."
}
},
zoomingMode: "all",
series: [
{
name: "Puls",
valueField: "puls"
},
{
name: "Temperatur",
valueField: "temperatur",
axis: "temperaturAxe"
},
{
name: "Gewicht",
valueField: "weight",
axis: "weightAxe"
}
],
valueAxis: [
{
name: "pulsAxe",
title: "Puls",
position: "left",
label: {
customizeText: function(value) {
return value.value + " bpm"
}
}
},
{
name: "temperaturAxe",
title: "Temperatur",
position: "left",
label: {
customizeText: function(value) {
return value.value + " °C"
}
}
},
{
name: "weightAxe",
title: "Gewicht",
position: "left",
label: {
customizeText: function(value) {
return value.value + " kg"
}
}
}
]
});
});
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