Created
March 19, 2019 09:48
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| <!DOCTYPE html> | |
| <html lang="en" dir="ltr"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title></title> | |
| <style media="screen"> | |
| #myCanvas { | |
| background: #fff; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <canvas id="myCanvas" width="300" height="200"></canvas> | |
| <script type="text/javascript"> | |
| function drawLine(startX, startY, endX, endY) { | |
| var context = document.getElementById("myCanvas").getContext("2d"); | |
| context.globalCompositeOperation = 'lighter'; | |
| context.strokeStyle = "rgba(150, 150, 150, 0.2)"; // Red, Green, Blue, Alha | |
| context.lineWidth = 2; | |
| context.beginPath(); | |
| context.moveTo(startX, startY); | |
| context.lineTo(endX, endY); | |
| context.stroke(); | |
| } | |
| drawLine(0, 0, 300, 200); | |
| </script> | |
| </body> | |
| </html> |
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