I need to write text into a bar chart in a chart using chart.js
var ctx = document.getElementById("myChart"); var myChart = new Chart(ctx, { type: 'bar', data:data, options: { scales: { yAxes: [{ ticks: { beginAtZero:true } }] } }, responsive : true, showTooltips : false, showInlineValues : true, centeredInllineValues : true, tooltipCaretSize : 0, tooltipTemplate : "<%= value %>" });
The above code does not work...
I need something like this:
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
If you want to render centered text for each element, there is an easier way:
Chart.helpers.each(meta.data.forEach(function (bar, index) { var centerPoint = bar.getCenterPoint(); ctx.fillText(dataset.data[index], centerPoint.x, centerPoint.y)); }),this)It seems that'getCenterPoint' is not available in version 2.1.3(which you use in your example). I tried it with 2.5.0 and it works
Add this code to your options object:
animation: { onComplete: function () { var chartInstance = this.chart; var ctx = chartInstance.ctx; console.log(chartInstance); var height = chartInstance.controller.boxes[0].bottom; ctx.textAlign = "center"; Chart.helpers.each(this.data.datasets.forEach(function (dataset, i) { var meta = chartInstance.controller.getDatasetMeta(i); Chart.helpers.each(meta.data.forEach(function (bar, index) { ctx.fillText(dataset.data[index], bar._model.x, height - ((height - bar._model.y) / 2)); }),this) }),this); } }https://jsfiddle.net/h4p8f5xL/
Update 2
Surround the canvas with a container with the desired width and height
And add the following to your options object