Michal S Michal S - 6 months ago 567
Javascript Question

HighCharts: Labels visible over tooltip

Labels on my chart are showing over tooltip, which doesn't look very nice. I tried to play with

zIndex
, but to no result. How can I make tooltips not transparent? Here's my jsFiddle: http://www.jsfiddle.net/4scfH/3/



$(function() {
var chart;
$(document).ready(function() {
chart = new Highcharts.Chart({
chart: {
renderTo: 'graf1',
plotBackgroundColor: null,
plotBorderWidth: null,
plotShadow: false
},

title: {
margin: 40,
text: 'Podíl všech potřeb'
},
tooltip: {
//pointFormat: '<b>{point.y} Kč [{point.percentage}%]</b>',
percentageDecimals: 2,
backgroundColor: "rgba(255,255,255,1)",
formatter: function() {
return this.point.name + '<br />' + '<b>' + Highcharts.numberFormat(this.y).replace(",", " ") + ' Kč [' + Highcharts.numberFormat(this.percentage, 2) + '%]</b>';
}
},
plotOptions: {
pie: {
allowPointSelect: true,
cursor: 'pointer',
dataLabels: {
enabled: true,
color: '#000000',
connectorWidth: 2,
useHTML: true,
formatter: function() {
return '<span style="color:' + this.point.color + '"><b>' + this.point.name + '</b></span>';
}
}
}
},
series: [{
type: 'pie',
name: 'Potřeba',
data: [
['Firefox', 45.0],
['IE', 26.8], {
name: 'Chrome',
y: 12.8,
sliced: true,
selected: true
},
['Safari', 8.5],
['Opera', 6.2],
['Others', 0.7]
]
}]
});
});
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<div id="graf1" style="width: 400px; height: 250px; float:left"></div>




Answer

You can set useHTML and define your own tooltip via css:

http://jsfiddle.net/4scfH/4/

tooltip: {
    borderWidth: 0,
    backgroundColor: "rgba(255,255,255,0)",
    borderRadius: 0,
    shadow: false,
    useHTML: true,
    percentageDecimals: 2,
    backgroundColor: "rgba(255,255,255,1)",
    formatter: function () {
        return '<div class="tooltip">' + this.point.name + '<br />' + '<b>' + Highcharts.numberFormat(this.y).replace(",", " ") + ' Kč [' + Highcharts.numberFormat(this.percentage, 2) + '%]</b></div>';
    }
},

CSS

.label {
    z-index: 1 !important;
}

.highcharts-tooltip span {
    background-color: white;
    border:1 px solid green;
    opacity: 1;
    z-index: 9999 !important;
}

.tooltip {
    padding: 5px;
}
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