曲线球体变化效果代码-html代码-BFW代码库

曲线球体变化效果代码

代码语言：html

所属分类：动画

代码描述：曲线球体变化效果代码

代码标签：效果

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>
#c
{
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}
</style>


</head>

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

  
      <script>
var opts = {
  radius: 150,
  segCount: 400,
  endAngle: -Math.PI * 18,
  baseRotSpeed: 5,
  transformedRotSpeed: 1,
  transSpeed: 2,
  transEasing: function (t) {return t < .5 ? 4 * t * t * t : 1 - 4 * (t = 1 - t) * t * t;},
  randMinSegSize: 10,
  randMaxSegSize: 40 };


var c = document.getElementById('c'),
ctx = c.getContext('2d');

function resize()
{
  c.width = c.offsetWidth;
  c.height = c.offsetHeight;
  ctx.translate(c.width * .5, c.height * .5);
  ctx.strokeStyle = 'black';
  ctx.lineCap = 'round';
  ctx.lineJoin = 'round';
}
window.addEventListener('resize', resize);
resize();

function rotateX(p, a)
{
  var d = Math.sqrt(p[2] * p[2] + p[1] * p[1]),
  na = Math.atan2(p[1], p[2]) + a;
  return [p[0], d * Math.sin(na), d * Math.cos(na)];
}
function rotateY(p, a)
{
  var d = Math.sqrt(p[2] * p[2] + p[0] * p[0]),
  na = Math.atan2(p[2], p[0]) + a;
  return [d * Math.cos(na), p[1], d * Math.sin(na)];
}

function loxo(radius, angle, segments)
{
  var r = [];
  for (var i = 0; i < segments; i++)
  {
    var a = Math.PI * i / segments,
    c = Math.cos(a),
    s = Math.sin(a);
    var progress = (c + 1) * .5;
    var ay = progress * angle;
    r.push([radius * s * Math.cos(ay), radius * c, radius * s * Math.sin(ay)]);
  }
  return r;
}

function random(a, b) {return a + Math.random() * (b - a);}
function between(n, m, M) {return n >= m && n <= M;}
function randomPath(n, limit, minDist, maxDist)
{
  var r = [];
  var previous = [random(-limit, limit), random(-limit, limit), random(-limit, limit)];
  for (var i = 0; i < n; i++)
  {
    var p;
    do
    {
      var dist = random(minDist, maxDist);
      var angleA = random(0, Math.PI * 2);
      var angleB = random(0, Math.PI * 2);
      var tmp = dist * Math.sin(angleA);
      p = [previous[0] + dist *.........完整代码请登录后点击上方下载按钮下载查看