HorizontalBar chart is displayed below canvas when I set height with style attribute for chart div (Chart.js 2.9.4)
Question
If I set height with style attribute for chart div
<div id="chartDiv" style="height: 100px; border: 1px solid red;"><canvas id="chart"></canvas></div>
chart is looking like that (chart is displayed below canvas):
var barChartData = { labels: [""], datasets: [{ label: "1", backgroundColor: "rgba(68,222,166,1)", barThickness: 50, data: [177] }, { label: "2", barThickness: 50, backgroundColor: "rgba(218, 65, 102, 1)", data: [170] } ] }; var optionsBar = { legend: false, title: { display: false }, scales: { xAxes: [{ stacked: true, display: false }], yAxes: [{ stacked: true, display: false }] } }; var ctx = document.getElementById("chart"); var myChart = new Chart(ctx, { type: 'horizontalBar', data: barChartData, options: optionsBar });
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.bundle.min.js"></script> <body style="background-color: grey;"> <div id="chartDiv" style="height: 100px; border: 1px solid red;"><canvas id="chart"></canvas></div> </body>
How to fix that?
1 answers
solution1
0 ACCPTED 2020-11-17 17:27:10
It's showing like this because canvas's aspect ratio is changing automatically with window size but you've set your div to a specific height of 100px . That's why canvas has placed outside of the div while window size is extending. Just to get rid of that problem, set maintainAspectRatio: false in your option in this way:
var barChartData = { labels: [""], datasets: [{ label: "1", backgroundColor: "rgba(68,222,166,1)", barThickness: 50, data: [177] }, { label: "2", barThickness: 50, backgroundColor: "rgba(218, 65, 102, 1)", data: [170] } ] }; var optionsBar = { maintainAspectRatio: false, legend: false, title: { display: false }, scales: { xAxes: [{ stacked: true, display: false }], yAxes: [{ stacked: true, display: false }] } }; var ctx = document.getElementById("chart"); var myChart = new Chart(ctx, { type: 'horizontalBar', data: barChartData, options: optionsBar });
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.bundle.min.js"></script> <body style="background-color: grey;"> <div id="chartDiv" style="height: 100px; border: 1px solid red;"><canvas id="chart"></canvas></div> </body>
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.