以下圆弧是在HTML5画布中绘制的。我怎样才能使弧线的外部更平滑,像素化更少,或者更抗锯齿?
这是用于创建上述弧线的代码
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
var img = new Image();var x = canvas.width / 2;
var y = canvas.height / 2;
var radius = 100;
var startAngle = Math.