canvas实现圆脉冲旋转动画效果代码

代码语言:html

所属分类:动画

代码描述:canvas实现圆脉冲旋转动画效果代码

代码标签: canvas 脉冲 旋转 动画

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

<!DOCTYPE html>
<html lang="en">

<head>

    <meta charset="UTF-8">

    <style>
        body, html {
          margin: 0;
          overflow: hidden;
        }
        
        canvas {
          display: block;
        }
    </style>




</head>

<body>
    <canvas id="canvas"></canvas>


    <script>
        let canvas;
        let ctx;
        let w, h;
        
        function setup() {
          canvas = document.querySelector("#canvas");
          ctx = canvas.getContext("2d");
          resize();
          window.addEventListener("resize", () => {
            resize();
          });
        }
        
        function resize() {
          w = canvas.width = window.innerWidth;
          h = canvas.height = window.innerHeight;
        }
        
        function draw(now) {
          requestAnimationFrame(draw);
          ctx.fillStyle = "black";
          ctx.fillRect(0, 0, w, h);
          ctx.strokeStyle = "white&.........完整代码请登录后点击上方下载按钮下载查看

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