我正在使用 angular chart.js 开发我的第一个示例代码，我无法更改自定义高度和宽度，如何更改 Canvas 的高度和宽度。
代码:
CSS
#我的图表{
宽度:500px；
高度:500px；
HTML
<body ng-controller="LineCtrl">
<canvas id="myChart" ></canvas>
<div class="chart-container">
<linechart data="data" options="options" mode=""></linechart>
</div>
Javascript
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 options = {
scaleOverlay : false,
scaleOverride : false,
scaleSteps : null,
scaleStepWidth : null,
scaleStartValue : null,
scaleLineColor : "rgba(0,0,0,.1)",
scaleLineWidth : 1,
scaleShowLabels : true,
scaleLabel : "<%=value%>",
scaleFontFamily : "'proxima-nova'",
scaleFontSize : 10,
scaleFontStyle : "normal",
scaleFontColor : "#909090",
scaleShowGridLines : true,
scaleGridLineColor : "rgba(0,0,0,.05)",
scaleGridLineWidth : 1,
bezierCurve : true,
pointDot : true,
pointDotRadius : 3,
pointDotStrokeWidth : 1,
datasetStroke : true,
datasetStrokeWidth : 2,
datasetFill : true,
animation : true,
animationSteps : 60,
animationEasing : "easeOutQuart",
onAnimationComplete : null
}
var ctx=document.getElementById("myChart").getContext("2d");
var myLineChart = new Chart(ctx).Line(data, options);
//console.log(myLineChart)
最佳答案
我通过更改一些选项属性并在上下文中设置宽度和高度来做到这一点:-
var options = {
responsive: false,
maintainAspectRatio: false
}
在 Js 中
var ctx=document.getElementById("myChart").getContext("2d");
ctx.canvas.width = 100;
ctx.canvas.height = 100;
var myLineChart = new Chart(ctx).Line(data, options);
关于javascript - 如何在 Angular chart.js 中更改 Canvas 高度和宽度，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28250375/