js canvas实现大圆套小圆旋转动画效果代码
代码语言:html
所属分类:动画
代码描述:js canvas实现大圆套小圆旋转动画效果代码
下面为部分代码预览,完整代码请点击下载或在bfwstudio webide中打开
<html lang="en"><head> <meta charset="UTF-8"> <style> body { font-family: Arial, Helvetica, "Liberation Sans", FreeSans, sans-serif; background-color: #000; margin:0; padding:150px; border-width:0; cursor: pointer; } </style> </head> <body > <script > "use strict"; window.addEventListener("load", function () { let canv, ctx; // canvas and context let maxx, maxy; // canvas dimensions let c; let hue; // for animation let events; // shortcuts for Math. const mrandom = Math.random; const mfloor = Math.floor; const mround = Math.round; const mceil = Math.ceil; const mabs = Math.abs; const mmin = Math.min; const mmax = Math.max; const mPI = Math.PI; const mPIS2 = Math.PI / 2; const mPIS3 = Math.PI / 3; const m2PI = Math.PI * 2; const m2PIS3 = Math.PI * 2 / 3; const msin = Math.sin; const mcos = Math.cos; const matan2 = Math.atan2; const mhypot = Math.hypo.........完整代码请登录后点击上方下载按钮下载查看
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