three实现canvas阴阳八卦图旋转动画效果代码-html代码-BFW代码库

three实现canvas阴阳八卦图旋转动画效果代码

代码语言：html

所属分类：动画

代码描述：three实现canvas阴阳八卦图旋转动画效果代码

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

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

<head>
  <meta charset="UTF-8">
  


  
  
<style>
body{
  overflow: hidden;
  margin: 0;
  background-color: #600;
}
canvas {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  /*border: 1px solid red;*/
}
</style>

  
  
</head>

<body>
  <canvas id="cnv"></canvas>
  
      <script  type="module">
import {
Vector2,
Clock,
MathUtils } from
"//repo.bfw.wiki/bfwrepo/js/module/three/build/157/three.module.js";
console.clear();

let unit = n => {
  return n * c.width * 0.005;
};

class Petal {
  constructor(params) {
    this.angularSize = params.angularSize;
    this.angularPos = params.angularPos;
    this.angularSpeed = params.angularSpeed;
    this.width = params.width;
    this.borderThickiness = params.thickness;
    this.border = params.border;
    this.color = params.color;

    this.distance = params.distance;

    this.mediators = {
      v: new Vector2(),
      c: new Vector2() };

  }

  draw($) {
    let m = this.mediators;
    let v = m.v;
    let c = m.c;
    //$.save();
    $.lineWidth = this.borderThickness;
    $.strokeStyle = this.border;
    $.fillStyle = this.color;
    $.lineCap = "round";
    $.lineJoin = "round";
    $.beginPath();
    let rMax = Math.min(
    unit(90),
    Math.max(unit(50), this.distance + this.width * 0.5));

    let rMin = Math.min(
    unit(90),
    Math.max(unit(50), this.distance - this.width * 0.5));


    v.set(rMax, 0).rotateAround(c, -this.angularSize * 0.5 + this.angularPos);
    //console.log(v);
    $.moveTo(v.x, v.y);
    $.arc(
    0,
    0,
    rMax,
    -this.angularSize * 0.5 + this.angularPos,
    this.angularSize * 0.5 + this.angularPos);

    $.arc(
    0,
    0,
    rMin,
    this.angularSize * 0.5 + this.angularPos,
    -this.angularSize * 0.5 + this.angularPos,
    true);

    $.lineTo(v.x, v.y);

    $.fill();
    $.stroke();
    //$.restore();
  }}


class Flower {
  constructor(amount) {
    this.amount =.........完整代码请登录后点击上方下载按钮下载查看