1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
<p class="desc"> Test to ensure beginlayer works for alpha. </p>
<script>
var canvas, ctx;
canvas = document.createElement("canvas");
canvas.width = 200;
canvas.height = 200;
document.body.appendChild(canvas);
ctx = canvas.getContext("2d");
ctx.fillStyle = 'rgba(0,0,255,1)';
ctx.fillRect(50,50,95,70);
ctx.globalAlpha = 0.6;
canvas2 = document.createElement("canvas");
ctx2 = canvas2.getContext("2d");
ctx2.fillStyle = 'rgba(225,0,0,1)';
ctx2.fillRect(60,40,75,50);
ctx2.fillStyle = 'rgba(0,255,0,1)';
ctx2.fillRect(80,60,75,50);
ctx.drawImage(canvas2,0,0);
</script>
|
