js实现canvas全息交互视觉效果代码-html代码-BFW代码库

js实现canvas全息交互视觉效果代码

代码语言：html

代码描述：js实现canvas全息交互视觉效果代码

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>
* {
  padding: 0;
  margin: 0;
  overflow: hidden;
}
</style>



</head>

<body>
  <!--
This pen is a reverse engineered (and slightly modified) version of the pen by Toshiya Marukubo (@toshiya-marukubo):

https://codepen.io/toshiya-marukubo/pen/mdRzyQz

I wanted to see how it worked and I figured I'd share :)
-->

  
      <script>
// This is a self-executing function (note the parenthesis at the end that cause it to run).
(() => {
  // This causes the browser to run this code in standards compliant mode rather than "quirks" mode.
  'use strict';

  // The next three lines create constant (unchangeable) references for a new canvas element, the canvas rendering context, and the diameter value, which determines the size and position of the rectangles that are drawn.
  const canvas = document.createElement('canvas');
  const ctx = canvas.getContext('2d');
  const diameter = 15;

  // These values can't be constants because they need to change whenever the browser is resized or the user moves the mouse.
  let width = 0; // Width of the viewport
  let height = 0; // Height of the viewport
  let halfWidth = 0; // Half the width of the viewport (we're storing this to avoid having to calculate it repeatedly in the loop below).
  let frame; // This variable holds the reference to the frame from requestAnimationFrame so we can cancel the frame when the user resizes or changes the orientation of the browser window.
  let time = 0; // This is used to store the current position in the animation timeline.
  let destination = 1; // This is used to smoothe the animation transition to a new position in the timeline.

  // This function will be called initially on startup (below) and whenever the user resizes or reorients the browser window.
  const resize = () => {
    cancelAni.........完整代码请登录后点击上方下载按钮下载查看