blob: 683c87bc85b569af6c6e8b545fae8148e4709eeb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
<!DOCTYPE html>
<html>
<body>
<canvas id="c" width="200" height="200"></canvas>
<script>
const c = document.getElementById("c");
const ctx = c.getContext("2d");
ctx.translate(20, 20);
ctx.beginPath();
ctx.arc(0, 0, 15, 0, 2 * Math.PI);
ctx.clip();
ctx.beginPath();
ctx.arc(0, 0, 10, 0, 2 * Math.PI);
ctx.lineWidth = 2;
ctx.globalAlpha = 0.5;
ctx.strokeStyle = '#00ff00';
ctx.stroke();
</script>
</body>
</html>
|
