Any suggestions on how to position the tooltip above the chart in order to prevent overlap, especially when viewing on mobile devices?
I'm working with vue charts.
https://i.sstatic.net/txVf5.png
Appreciate your help in advance.
Any suggestions on how to position the tooltip above the chart in order to prevent overlap, especially when viewing on mobile devices?
I'm working with vue charts.
https://i.sstatic.net/txVf5.png
Appreciate your help in advance.
I encountered a similar issue in my project.
Using Vue, after importing Bar as the Chart component, you have the ability to customize positioning as outlined in the Chart.js documentation:
<script>
import { Bar } from "vue-chartjs";
Chart.Tooltip.positioners.custom = function(elements, eventPosition) {
var tooltip = this;
/* Custom logic here */
return {
x: eventPosition.x,
y: eventPosition.y
};
}
For instance, setting the tooltip positioning to follow the mouse cursor can be achieved by defining a custom function. Make sure to include your custom function in the chart options when rendering it:
export default {
extends: Bar, ...
.
.
.
this.renderChart(
{ labels: this.labels, datasets: this.datasets },
{ ...
tooltips: {
position : 'custom',
callbacks: {
label: function(tooltipItem, data) {
var label = Math.floor(tooltipItem.yLabel*100)/100+" "+data.datasets[tooltipItem.datasetIndex].label;
return label;
}
}
}
To create a unique placement guide, you can define a custom positioning map.
Explore more about positioning modes here https://i.sstatic.net/hltSj.png
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