javascript - Chart.js 不遵守我的容器尺寸

Question

我正在尝试使用 Chart.js 库创建折线图。我有一个尺寸为 600px 宽 x 250px 高的 div，根据我的阅读，该库旨在使用这些父尺寸创建折线图。

下面显示了我的 HTML 元素:

<div style="width:600px;height:250px">
    <canvas id="myChart"></canvas>
</div>

这是我正在使用的代码:

$(document).ready(function(){
     var data = {
                    labels: ["January", "February", "March", "April", "May", "June", "July"],
                    datasets: [
                        {
                            label: "My First dataset",
                            fillColor: "rgba(220,220,220,0.2)",
                            strokeColor: "rgba(220,220,220,1)",
                            pointColor: "rgba(220,220,220,1)",
                            pointStrokeColor: "#fff",
                            pointHighlightFill: "#fff",
                            pointHighlightStroke: "rgba(220,220,220,1)",
                            data: [65, 59, 80, 81, 56, 55, 40]
                        },
                        {
                            label: "My Second dataset",
                            fillColor: "rgba(151,187,205,0.2)",
                            strokeColor: "rgba(151,187,205,1)",
                            pointColor: "rgba(151,187,205,1)",
                            pointStrokeColor: "#fff",
                            pointHighlightFill: "#fff",
                            pointHighlightStroke: "rgba(151,187,205,1)",
                            data: [28, 48, 40, 19, 86, 27, 90]
                        }
                    ]
                };
                var ctx = $("#myChart").get(0).getContext("2d");
                new Chart(ctx).Line(data, {
                    responsive:true
                });
});

这显示了我在 jsfiddle 中遇到的问题:https://jsfiddle.net/Lr88htnp/ (请注意，呈现的图表尺寸为 600x300)

Answer 1

您需要将选项 maintainAspectRatio 设置为 false

....
new Chart(ctx).Line(data, {
    responsive:true,
    maintainAspectRatio: false
});

---

fiddle - https://jsfiddle.net/3cxeyLc8/