1👍
Following is a CSS based solution. Please refer to this sample I have just created and edit the CSS as you prefer>> https://jsfiddle.net/0paz7Lqr/1/
HTML :
<canvas id="chart" width="390" height="225"></canvas>
JS:
var barData = {
labels: ["John W", "Ben T", "Jenny H", "Samantha D", "Anothony P"],
datasets: [
{
fillColor: "rgba(153, 153, 155, 0.4)",
highlightFill: "#7C7C7C",
strokeColor: "#7C7C7C",
pointColor: "#7C7C7C",
pointStrokeColor: "#7C7C7C",
pointHighlightFill: "#fff",
data: [25, 94, 68, 175, 66]
}
]
};
var ctx = $("#chart").get(0).getContext("2d");
var myChart = new Chart(ctx).Line(barData);
CSS:
canvas {
background-image: url(https://homepages.cae.wisc.edu/~ece533/images/airplane.png);
background-size: 35% 25%;
background-position: bottom 30px right 20px;
background-repeat: no-repeat;
}
- Chartjs-Chart js draw line chart by points instead of by lines
- Chartjs-How to create chart with two DataSeries with different labels?
0👍
You can use a custom plugin to draw the image on the canvas using the drawImage()
method:
const image = new Image();
image.src = 'https://www.chartjs.org/img/chartjs-logo.svg';
const options = {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
borderColor: "pink"
}]
},
options: {},
plugins: [{
id: 'customImage',
beforeDraw: (chart) => {
if (image.complete) {
const ctx = chart.ctx;
const {
top,
left,
width,
height
} = chart.chartArea;
const x = left + width - image.width;
const y = top + height - image.height;
ctx.drawImage(image, x, y);
} else {
image.onload = () => chart.draw();
}
}
}]
}
const ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.4.1/chart.js"></script>
</body>
Source:stackexchange.com