| 1 | <!DOCTYPE html>
|
| 2 | <html lang="en">
|
| 3 |
|
| 4 | <head>
|
| 5 | <meta charset="UTF-8">
|
| 6 | <meta name="viewport" content="width=device-width, initial-scale=1.0">
|
| 7 | <meta http-equiv="X-UA-Compatible" content="ie=edge">
|
| 8 | <title>0.5Px模糊问题</title>
|
| 9 | <script src="../build/image2D.js"></script>
|
| 10 |
|
| 11 | <script>
|
| 12 | function drawerImage(ctx) {
|
| 13 |
|
| 14 | ctx.strokeStyle = '#000';
|
| 15 | ctx.lineWidth = 1;
|
| 16 |
|
| 17 |
|
| 18 | ctx.strokeRect(10, 10, 180, 180);
|
| 19 |
|
| 20 |
|
| 21 | ctx.beginPath();
|
| 22 | ctx.moveTo(20, 20);
|
| 23 | ctx.lineTo(100, 160);
|
| 24 | ctx.lineTo(180, 20);
|
| 25 | ctx.stroke();
|
| 26 |
|
| 27 | }
|
| 28 | </script>
|
| 29 | </head>
|
| 30 |
|
| 31 | <body>
|
| 32 |
|
| 33 | <span>SVG绘图效果</span>
|
| 34 | <svg width="200" height="200">
|
| 35 | <rect x='10' y='10' width='180' height='180' fill='none' stroke='#000'></rect>
|
| 36 | <path d="M20,20L100,160L180,20" fill='none' stroke='#000'></path>
|
| 37 | </svg>
|
| 38 |
|
| 39 | <span>优化后方案</span>
|
| 40 | <canvas width="200" height="200" id="canvas1"></canvas>
|
| 41 | <script>
|
| 42 | drawerImage($$('#canvas1').painter());
|
| 43 | </script>
|
| 44 |
|
| 45 | <span>原始效果</span>
|
| 46 | <canvas width="200" height="200" id="canvas2"></canvas>
|
| 47 | <script>
|
| 48 | drawerImage($$('#canvas2')[0].getContext('2d'));
|
| 49 | </script>
|
| 50 |
|
| 51 | </body>
|
| 52 |
|
| 53 | </html>
|