-
-
Save hanuz06/17fff90f3a3cecce16da625c83e9d128 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE HTML> | |
| <html> | |
| <head> | |
| <style> | |
| body { | |
| margin: 0px; | |
| padding: 0px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <canvas id="myCanvas" width="1200" height="1000"></canvas> | |
| <script> | |
| const Point = function(x, y) { | |
| this.X = x; | |
| this.Y = y; | |
| }; | |
| const canvas = document.getElementById('myCanvas'); | |
| const context = canvas.getContext('2d'); | |
| const alpha = Math.PI * 0.275, | |
| beta = -Math.PI * 0.35, | |
| ratioA = 0.775, | |
| ratioB = 0.45, | |
| MIN_LENGTH = 5; | |
| const drawLine = function(rootPoint, r, theta) { | |
| context.beginPath(); | |
| const endX = rootPoint.X + r * Math.cos(theta); | |
| const endY = rootPoint.Y + r * Math.sin(theta); | |
| const endPoint = new Point(endX, endY); | |
| context.moveTo(rootPoint.X, rootPoint.Y); | |
| context.lineTo(endPoint.X, endPoint.Y); | |
| context.stroke(); | |
| if (r * ratioA < MIN_LENGTH || r * ratioB < MIN_LENGTH) { | |
| return; | |
| } | |
| drawLine(endPoint, r * ratioA, theta + alpha); | |
| drawLine(endPoint, r * ratioB, theta + beta); | |
| }; | |
| const startPoint = new Point(300, 500); | |
| drawLine(startPoint, 200, Math.PI * 3 / 2); | |
| </script> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment