[英]Chart.js: How to change the x-Axes background color?
我正在使用 "chart.js": "3.0.0" 和 "react-chartjs-2": "^3.0.3" 我試圖改變 x 軸的背景顏色。 我可以改變字體的顏色,但不能改變背景
我試着用
backgroundColor: 'red'
但不工作..
const options = {
scales: {
x: {
ticks: {
font: {
size: 10,
},
backgroundColor: 'red', // not working
color: 'black', // worked
},
},
y: {
min: 0,
max: 10,
ticks: {
stepSize: 2,
},
},
},
};
有人知道怎么改嗎?
您可以為此使用自定義內聯插件:
var options = { type: 'bar', data: { labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"], datasets: [{ label: '# of Votes', data: [12, 19, 3, 5, 2, 3], backgroundColor: 'red' }, { label: '# of Points', data: [7, 11, 5, 8, 3, 7], backgroundColor: 'blue' } ] }, options: { plugins: { scaleBackgroundColor: { color: 'yellow' } } }, plugins: [{ id: 'scaleBackgroundColor', beforeDraw: (chart, args, opts) => { const { ctx, canvas, chartArea: { left, bottom, width, } } = chart; ctx.beginPath(); ctx.rect(left, bottom, width, (canvas.height - bottom)); ctx.fillStyle = opts.color || 'white' ctx.fill(); } }] } var 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>
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