2👍
✅
Ok, I did find a way to do it, by using some of the content of this video.
Here, when I retake my last example, and adding a plugin "customBorder"
const data = {
labels: ["Label1", "Label2", "Label3", "Label4"],
datasets: [{
label: 'First Dataset',
data: [1349, 282, 274, 173],
backgroundColor: ["blue"],
}]
};
const customBorder = {
id: 'customBorder',
afterDatasetsDraw(chart, args, pluginOptions) {
const {
ctx,
chartArea: {
top,
bottom,
left,
right,
width,
height
}
} = chart;
ctx.save();
ctx.beginPath();
ctx.lineWidth = 3;
ctx.strokeStyle = "red";
ctx.moveTo(left - 1, top + 3);
ctx.lineTo(left + 5, top + 10);
ctx.moveTo(left + 1, top + 3);
ctx.lineTo(left - 5, top + 10);
ctx.moveTo(left, top + 5);
ctx.lineTo(left, bottom);
ctx.lineTo(right - 5, bottom);
ctx.moveTo(right - 3, bottom + 1)
ctx.lineTo(right - 10, bottom - 5);
ctx.moveTo(right - 3, bottom - 1);
ctx.lineTo(right - 10, bottom + 5);
ctx.stroke();
ctx.closePath();
}
}
const ctx = document.getElementById('myChart').getContext('2d');
const myChart = new Chart(ctx, {
type: 'bar',
data: data,
options: {
scales: {
x: {
grid: {
drawBorder: false,
display: false,
},
grace: '15%'
},
y: {
grid: {
drawBorder: false,
display: false,
},
ticks: {
display: false,
},
grace: '15%',
},
},
plugins: {
legend: {
display: false,
},
tooltip: {
enabled: false,
},
datalabels: {
labels: {
value: {
align: 'end',
anchor: 'end',
color: "black",
formatter: function(value, ctx) {
return value;
},
},
}
},
}
},
plugins: [ChartDataLabels, customBorder],
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js@3.7.1/dist/chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels@2.0.0/dist/chartjs-plugin-datalabels.min.js"></script>
</script>
<canvas id="myChart"></canvas>
I don’t think it is the best way to do it, but it works.
Source:stackexchange.com