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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Mixlab送你一本人工智能书</title>
<script src="https://aframe.io/releases/0.8.2/aframe.min.js"></script>
</head>
<style>
.logo {
position: fixed;
bottom: 12px;
z-index: 99;
color: #252525;
font-weight: 600;
font-size: 15px;
padding: 12px;
display: flex;
flex-direction: column;
}
.logo img {
display: block;
width: 56px;
height: 56px;
}
#txt {
padding: 12px;
width: 70%;
}
#user {
position: fixed;
top: 0;
width: 100%;
z-index: 99;
background: #eee;
padding: 24px;
padding-top: 72px;
height: 100vh;
display: flex;
flex-direction: column;
}
input {
outline: 1px solid black;
height: 44px;
margin-top: 24px;
font-size: 24px;
padding: 24px;
width: 228px;
border: none;
}
.save_btn {
height: 44px;
background: black;
color: white;
font-size: 18px;
margin-top: 24px;
width: 72px;
position: fixed;
top: 24px;
right: 24px;
}
</style>
<body>
<div id="user">
<div>输入姓名，生成你的人工智能著作</div>
<input type="text" placeholder="例如 shadow">
<button onclick="start();" style="width: 140px;
background: rgba(0, 0, 0, 0.8);
height: 44px;
color: white;
margin-top: 24px;
outline: none;
border: none;
font-size: 18px;">生 成</button>
<!--<div style="font-size: 10px;margin-top: 8px;">生成后，移动手机寻找属于你的AI书籍</div>-->
</div>
<a-scene fog="type: linear; color:#eee" vr-mode-ui="enabled: false" keyboard-shortcuts="enterVR: false" style="display:none">
<a-assets>
<img id="cover">
<img id="cover_small">
</a-assets>
<a-entity position="0 0 0" camera="active:true;fov:45" look-controls="enabled:false;">
</a-entity>
<a-entity shadow="receive: true" geometry="primitive: box" light="type: point; intensity: 1.1">
<a-box position="0 0.6 -6.6" rotation="0 26 0" color="#ffffff" depth="0.4" height="3.5" width="2.3" id="bookCover">
<a-box position="-1.148 0 0" rotation="0 0 0" color="#4a4a4a" depth="0.4" height="3.5" width="0.01" id="bookCover_small"></a-box>
</a-box>
<!--
<a-box position="-1.81 2 -5.4" rotation="0 -45 0" color="#4a4a4a" depth="0.01" height="4" width="0.7"></a-box>-->
<a-entity light="type: point; intensity: 0.8; distance: 50; decay: 2" position="-4 4 -2.4"></a-entity>
</a-entity>
<a-box color="white" shadow="receive: false" position="0 -1.2 -4" rotation="0 45 0" depth="1240" height="0.1" width="1200"></a-box>
<a-sky color="#ECECEC"></a-sky>
</a-scene>
<div class="logo" style="display: none">
<div style="display:flex;">
<img src="./code.jpg" alt="" id="logo">
<div id="txt"></div>
</div>
<div style="font-size:12px;font-weight: 400;color:rgba(0, 0, 0, 0.8)">长按二维码制作你的AI书籍</div>
<button onclick="save();" class="save_btn">SAVE</button>
</div>
<script>
var t = getTitle(),
l = getLevel(),
c = getColors();
var isDone = 0;
var name = 'shadow 著';
function start() {
name = (document.querySelector('input').value || 'mixlab') + ' 著';
document.querySelector('a-scene').style.display = "block";
document.querySelector('#user').style.display = "none";
document.querySelector('.logo').style.display = "flex";
setTimeout(run, 500);
};
function getColors() {
var colors = [
["#240041", "#900048"],
["#1C1124", "#684656"],
["#394A51", "#7FA99B"],
["#22559C", "#F27370"],
["#FF6D24", "#4E413B"],
["#F0CA6D", '#F7F2C1'],
["#A13939", "#E75151"],
["#657DC4", "#838ED9"],
["#461B93", "#6A3CBC"],
["#4A3333", "#98D083"],
["#AD1457", "#F06292"],
["#18587A", "#FC624D"]
];
var index = Math.abs(Math.ceil(Math.random() * colors.length - 1));
return colors[index]
}
function getTitle() {
var titles = [{
zh: "人工智能基础",
en: ['Fundamentals of', 'Artificial Intelligence']
}, {
zh: "机器视觉基础",
en: ['Fundamentals of', 'Machine Vision']
}, {
zh: "深度学习基础",
en: ['Fundamentals of', 'Deep Learning']
}, {
zh: "机器学习基础",
en: ['Fundamentals of', 'Machine Learning']
}, {
zh: "自然语言处理基础",
en: ['Fundamentals of', 'Natural Language Processing']
}];
var index = Math.abs(Math.ceil(Math.random() * titles.length - 1));
var title = {
texts: titles[index].zh.split(''),
text: titles[index]
};
return title;
};
function getLevel() {
var levels = ["学前教育版", "小学版", "初中版", "高中版"];
var index = Math.abs(Math.ceil(Math.random() * levels.length - 1));
return levels[index];
};
function getMyWords() {
var words = [{
"text": "幸福是可以通过学习来获得的，尽管它不是我们的母语。 ",
"from": "——韩寒",
"url": "http://www.juzimi.com/ju/723",
"id": "723",
"tag": "学习"
}, {
"text": "此刻打盹，你将做梦； 而此刻学习，你将圆梦。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/6897",
"id": "6897",
"tag": "学习"
}, {
"text": "无目的读书是散步而不是学习。 ",
"from": "——胡适",
"url": "http://www.juzimi.com/ju/9359",
"id": "9359",
"tag": "学习"
}, {
"text": "越学习，越发现自己的无知。 ",
"from": "——笛卡尔",
"url": "http://www.juzimi.com/ju/11801",
"id": "11801",
"tag": "学习"
}, {
"text": "如果学习只在于模仿，那么我们就不会有科学，也不会有技术。 ",
"from": "——高尔基",
"url": "http://www.juzimi.com/ju/14851",
"id": "14851",
"tag": "学习"
}, {
"text": "如果不想在世界上虚度一生，那就要学习一辈子。 ",
"from": "——高尔基",
"url": "http://www.juzimi.com/ju/16211",
"id": "16211",
"tag": "学习"
}, {
"text": "我活着是为学习，而学习并不是为活着。 ",
"from": "——培根",
"url": "http://www.juzimi.com/ju/23252",
"id": "23252",
"tag": "学习"
}, {
"text": "在任何情况下，你都要学习——以更换学习内容作为你的休息。 ",
"from": "——安·莫洛亚《大仲马传》",
"url": "http://www.juzimi.com/ju/35427",
"id": "35427",
"tag": "学习"
}, {
"text": "读书是学习，使用也是学习，而且是更重要的学习。 ",
"from": "——毛泽东",
"url": "http://www.juzimi.com/ju/47346",
"id": "47346",
"tag": "学习"
}, {
"text": "听不见喘息也就不知疲惫 看不清的终点也该要坚持。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/61527",
"id": "61527",
"tag": "学习"
}, {
"text": "平时的学习和经验，是我们在危急关头最有力的支持。 ",
"from": "——林肯",
"url": "http://www.juzimi.com/ju/73760",
"id": "73760",
"tag": "学习"
}, {
"text": "博学之，审问之，慎思之，明辨之，笃行之。 ",
"from": "《大戴礼记》",
"url": "http://www.juzimi.com/ju/101045",
"id": "101045",
"tag": "学习"
}, {
"text": "富贵必从勤苦得，男儿须读五车书。 ",
"from": "——杜甫《柏学士茅屋》",
"url": "http://www.juzimi.com/ju/120119",
"id": "120119",
"tag": "学习"
}, {
"text": "聪明在于学习，天才在于积累。 ",
"from": "——列宁",
"url": "http://www.juzimi.com/ju/176029",
"id": "176029",
"tag": "学习"
}, {
"text": "要学习向日葵，哪里有阳光就朝向哪里。 ",
"from": "《每天一张正能量》",
"url": "http://www.juzimi.com/ju/192896",
"id": "192896",
"tag": "学习"
}, {
"text": "什么时候，我连微笑也要学习。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/254071",
"id": "254071",
"tag": "学习"
}, {
"text": "当你的脾气大于出息，你就该去拼命学习。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/275806",
"id": "275806",
"tag": "学习"
}, {
"text": "把学习当学习，注定枯燥；把学习当成兴趣，注定有趣。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/380779",
"id": "380779",
"tag": "学习"
}, {
"text": "即使现在，对手也不停地翻动书页。 ",
"from": "《哈佛校训》",
"url": "http://www.juzimi.com/ju/385063",
"id": "385063",
"tag": "学习"
}, {
"text": "男孩子不学习做饭，会找不到女朋友的。 ",
"from": "——吴镇宇《爸爸去哪儿2》",
"url": "http://www.juzimi.com/ju/389941",
"id": "389941",
"tag": "学习"
}, {
"text": "原谅，是我们这一生都要学习的功课 ",
"from": "——张小娴《谢谢你离开我》",
"url": "http://www.juzimi.com/ju/421789",
"id": "421789",
"tag": "学习"
}, {
"text": "真的很想做一只小强，拥有两个大脑，一个学习，一个想你。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/486868",
"id": "486868",
"tag": "学习"
}, {
"text": "愚者向经验学习，贤者向历史学习。 ",
"from": "——宜野座伸元《心理测量者》",
"url": "http://www.juzimi.com/ju/570920",
"id": "570920",
"tag": "学习"
}, {
"text": "不好好学习怎么见TFBOYS？ ",
"from": "——TFBOYS",
"url": "http://www.juzimi.com/ju/624543",
"id": "624543",
"tag": "学习"
}, {
"text": "学习好的人连打架都这么有格调。 ",
"from": "——八月长安《最好的我们》",
"url": "http://www.juzimi.com/ju/744975",
"id": "744975",
"tag": "学习"
}, {
"text": "背生字，做习题，一天不得间断，因为学习语言，不进则退。 ",
"from": "——杨绛《杂忆与杂写》",
"url": "http://www.juzimi.com/ju/849440",
"id": "849440",
"tag": "学习"
}, {
"text": "我从来不让上学耽误我的学习。 ",
"from": "——马克·吐温",
"url": "http://www.juzimi.com/ju/859492",
"id": "859492",
"tag": "学习"
}, {
"text": "你不是不擅长学习，只是没有找到自己想要学习的东西而已。 ",
"from": "——东野圭吾《梦幻花》",
"url": "http://www.juzimi.com/ju/990846",
"id": "990846",
"tag": "学习"
}, {
"text": "学习是为了养成，不是致富。 ",
"from": "《三傻大闹宝莱坞》",
"url": "http://www.juzimi.com/ju/1107974",
"id": "1107974",
"tag": "学习"
}, {
"text": "想成为最优秀的人，就要向最优秀的人学习。 ",
"from": "——巴菲特",
"url": "http://www.juzimi.com/ju/1215931",
"id": "1215931",
"tag": "学习"
}, {
"text": "“一切研究，一切学习都只不过是回忆罢了。” ",
"from": "——柏拉图《美诺篇》",
"url": "http://www.juzimi.com/ju/1435208",
"id": "1435208",
"tag": "学习"
}, {
"text": "我们为什么会跌倒呢？这样我们才能学习怎么站起来。 ",
"from": "《蝙蝠侠：开战时刻》",
"url": "http://www.juzimi.com/ju/1514754",
"id": "1514754",
"tag": "学习"
}, {
"text": "只要还在学习，人生就有无穷的可能。 ",
"from": "《女王的教室》",
"url": "http://www.juzimi.com/ju/1616776",
"id": "1616776",
"tag": "学习"
}, {
"text": "加紧学习，抓住中心，宁精勿杂，宁专勿多。 ",
"from": "——周恩来",
"url": "http://www.juzimi.com/ju/1638108",
"id": "1638108",
"tag": "学习"
}, {
"text": "好好学习，安心学习 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/1746545",
"id": "1746545",
"tag": "学习"
}, {
"text": "没有脑子却要学习 一个大写的身残志坚 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/1874200",
"id": "1874200",
"tag": "学习"
}, {
"text": "学习哲学的目的，是使人成为人，而不是使人成为某种人。 ",
"from": "——冯友兰《中国哲学简史》",
"url": "http://www.juzimi.com/ju/2030975",
"id": "2030975",
"tag": "学习"
}, {
"text": "一个人学到的最重要的东西是学习的方法。 ",
"from": "——尼尔·波兹曼《娱乐至死》",
"url": "http://www.juzimi.com/ju/2117796",
"id": "2117796",
"tag": "学习"
}, {
"text": "我不能改变过去，但我能向过去学习 ",
"from": "《爱丽丝漫游仙境：镜中奇遇记》",
"url": "http://www.juzimi.com/ju/2127253",
"id": "2127253",
"tag": "学习"
}, {
"text": "忙完秋收忙秋种，学习，学习，再学习。 ",
"from": "——哈佛大学格言",
"url": "http://www.juzimi.com/ju/2344632",
"id": "2344632",
"tag": "学习"
}, {
"text": "学习等于接受，学习等于感受，学习等于承受，学习是受 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/2565447",
"id": "2565447",
"tag": "学习"
}, {
"text": "当你的才华还撑不上你的野心时，你应该就去静心去学习 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/2682793",
"id": "2682793",
"tag": "学习"
}, {
"text": "我爱学习 学习使我快乐 我爱学习 学习使我冷静 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/2806212",
"id": "2806212",
"tag": "学习"
}, {
"text": "人如果停止了学习，就开始走向失败。 ",
"from": "——马云",
"url": "http://www.juzimi.com/ju/2807817",
"id": "2807817",
"tag": "学习"
}, {
"text": "我和你在一起的有限时间里，我希望向你学习学习学习。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/3054382",
"id": "3054382",
"tag": "学习"
}, {
"text": "哪有什么烦心事 一定是你不认真学习又想太多 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/3180285",
"id": "3180285",
"tag": "学习"
}, {
"text": "我不爱学习 只是比较喜欢 那个认真努力的自己 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/3259089",
"id": "3259089",
"tag": "学习"
}, {
"text": "以学习为乐，以学习为贵，以学习为荣。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/3676496",
"id": "3676496",
"tag": "学习"
}, {
"text": "“为什么要学习？” “学习累两年，不学习累一辈子” ",
"from": "原创",
"url": "http://www.juzimi.com/ju/3848723",
"id": "3848723",
"tag": "学习"
}, {
"text": "我不想努力，却又不允许自己堕落。 ",
"from": "原创",
"url": "http://www.juzimi.com/ju/3978054",
"id": "3978054",
"tag": "学习"
}, {
"text": "学习，学习，再学习！学，然后知不足。 ",
"from": "——列宁",
"url": "http://www.juzimi.com/ju/4034175",
"id": "4034175",
"tag": "学习"
}];
var index = Math.abs(Math.ceil(Math.random() * words.length - 1));
return words[index];
};
function getGrid(w, h) {
var ln = 10;
var ps = [];
for (var index = 0; index < ln; index++) {
var x = w / ln * (index + 1);
for (var j = 0; j < ln; j++) {
var y = h / ln * (j + 1);
ps.push({
x: x,
y: y
})
}
};
return ps
};
function run() {
initCover();
initCover_small();
initMy();
};
function save() {
var s = document.querySelector('a-scene').components.screenshot;
var w=window.innerWidth*2,h=window.innerHeight*2;
s.data.height = h;
s.data.width =w;
var c=s.getCanvas('perspective');
var cc=document.createElement('canvas');
var nc=cc.getContext('2d');
cc.width= w;
cc.height=h;
nc.drawImage(c,0,0);
var logo=document.querySelector('#logo');
var size=w*0.25;
var y=h-size-20;
nc.drawImage(logo,w/2-size/2,y, size,size);
var base64=cc.toDataURL('image/png');
var img=document.createElement('img');
img.style.width="100%";
img.onload=function(){
document.body.innerHTML='';
document.body.appendChild(img);
}
img.src=base64;
// s.capture('perspective');
}
function initMy() {
var words = getMyWords();
var txt = document.querySelector('#txt');
if (words.from == '原创') {
words.from = '';
};
txt.innerText = words.text + ' ' + words.from;
//console.log(words)
}
function initCover() {
var canvas = document.createElement('canvas');
canvas.width = 500;
canvas.height = 700;
var color = "rgba(0,0,0,0.8)";
var grids = getGrid(canvas.width, canvas.height);
var ctx = canvas.getContext('2d');
ctx.fillStyle = "white";
ctx.fillRect(0, 0, canvas.width, canvas.height);
for (var index = 0; index < grids.length; index++) {
var p = grids[index];
ctx.fillStyle = "rgba(0,0,0,0.8)";
ctx.fillRect(p.x, p.y, 4, 4);
};
ctx.strokeStyle = "rgba(0,0,0,0.2)";
ctx.beginPath();
ctx.moveTo(grids[randomRangeInt(0, 10)].x, grids[randomRangeInt(0, 10)].y);
ctx.lineTo(grids[grids.length - randomRangeInt(1, 10)].x, grids[grids.length - randomRangeInt(1, 10)].y);
ctx.closePath();
ctx.stroke();
for (var index = 0; index < 8; index++) {
var _a = randomStandardNormal();
var _x = Math.abs(_a[0] * canvas.width * 0.8);
var _y = _a[1] * canvas.height * 2;
if (_y > 220 && _y < 360) {
_y = _y + 200;
};
if (_y > 0 && _y < 140) {
_y = _y - 90;
};
// console.log(_x,_y)
var pattern = createPattern(c);
var size = (80 + (150 * _a[0])) < 50 ? (Math.random() > 0.35 ? 280 : 50) : (80 + (150 * _a[0]));
ctx.drawImage(pattern, _x, _y, size, size);
};
//
ctx.fillStyle = 'rgba(255,255,255,0.7)';
ctx.fillRect(0, 0, canvas.width, 384);
ctx.font = "bold 48px sans-serif";
ctx.fillStyle = color;
ctx.strokeStyle = "#ffffff";
ctx.lineWidth = 4;
ctx.strokeText(t.text.zh, 50, 128);
ctx.fillText(t.text.zh, 50, 128);
ctx.font = "bold 28px sans-serif";
ctx.fillStyle = color;
ctx.strokeStyle = "#ffffff";
ctx.lineWidth = 4;
ctx.strokeText('( ' + l + ' )', 50, 180);
ctx.fillText('( ' + l + ' )', 50, 180);
ctx.font = "bold 30px sans-serif";
ctx.fillStyle = c[0];
ctx.strokeStyle = "#ffffff";
ctx.lineWidth = 1;
ctx.strokeText(t.text.en[0], 50, 320);
ctx.strokeText(t.text.en[1], 50, 360);
ctx.fillText(t.text.en[0], 50, 320);
ctx.fillText(t.text.en[1], 50, 360);
ctx.fillRect(50, canvas.height - 80, 10, 10);
ctx.fillStyle = 'rgba(255,255,255,0.7)';
ctx.fillRect(0, canvas.height - 90, canvas.width, 384);
ctx.font = "bold 16px sans-serif";
ctx.fillStyle = 'black';
ctx.textBaseline = "hanging";
ctx.fillText('人工智能+设计修炼指南系列', 70, canvas.height - 80);
ctx.fillText('科技Mix设计Lab 出品', 70, canvas.height - 60);
ctx.fillStyle = 'black';
ctx.font = "bold 18px sans-serif";
ctx.strokeStyle = "#ffffff";
ctx.lineWidth = 4;
var tw2 = ctx.measureText(name).width;
ctx.fillStyle = 'black';
ctx.strokeText(name, 70, canvas.height - 40);
ctx.fillText(name, 70, canvas.height - 40);
ctx.fillStyle = c[0];
ctx.fillRect(0, canvas.height - 35, tw2 - 20, 10);
ctx.fillRect(90 + tw2, canvas.height - 35, canvas.width, 10);
var imgSrc = canvas.toDataURL();
//alert(imgSrc)
var img = document.querySelector('#cover');
img.src = imgSrc;
img.onload = function () {
console.log('done');
document.querySelector('#bookCover').setAttribute('src', '#cover');
isDone = isDone + 1;
//document.body.innerHTML='';
// document.body.appendChild(img)
};
};
function initCover_small() {
var canvas = document.createElement('canvas');
canvas.width = 80;
canvas.height = 700;
var ctx = canvas.getContext('2d');
//ctx.fillStyle="white";
//ctx.fillRect(0,0,canvas.width,canvas.height);
ctx.font = "30px Verdana";
// 创建渐变
var grd = ctx.createLinearGradient(0, 0, canvas.width, 0);
grd.addColorStop(1, "rgba(0,0,0,0.05)");
grd.addColorStop(0, "white");
ctx.fillStyle = 'rgba(0,0,0,0.1)';
ctx.fillRect(0, 0, canvas.width, canvas.height);
ctx.font = "bold 20px sans-serif";
ctx.fillStyle = 'black';
ctx.textBaseline = "hanging";
var tts = t.texts.concat('人工智能+设计修炼指南'.split(''));
for (var index = 0; index < tts.length; index++) {
var tt = tts[index];
if (index >= t.texts.length) {
ctx.font = "bold 12px sans-serif";
ctx.fillText(tt, 30, index * 18 + 300);
} else {
ctx.font = "bold 20px sans-serif";
ctx.fillText(tt, 30, index * 24 + 50);
}
};
ctx.fillStyle = c[0];
ctx.fillRect(0, canvas.height - 35, 300, 10);
var imgSrc = canvas.toDataURL();
var img = document.querySelector('#cover_small');
img.src = imgSrc;
img.onload = function () {
console.log('done')
document.querySelector('#bookCover_small').setAttribute('src', '#cover_small')
isDone = isDone + 1;
/* if (isDone >= 2) {
var base64 = document.querySelector('.a-canvas').toDataURL();
var img = new Image();
img.src = base64;
img.onload = function () {
document.body.appendChild(img)
}
};
*/
//document.body.appendChild(canvas)
};
};
function createPattern(colors) {
var canvas = document.createElement('canvas');
canvas.width = 150;
canvas.height = 150;
var ctx = canvas.getContext('2d');
// ctx.strokeRect(0,0,canvas.width,canvas.height);
// ctx.rotate(randomRangeInt(0,40)*Math.PI/180);
var vertices = Math.random() > 0.45 ? 5 : 6;
var pattern1 = create(colors, true, vertices);
ctx.drawImage(pattern1, 0, 0, 150, 150);
var pattern2 = create(colors, false, vertices);
ctx.drawImage(pattern2, 10, 10, 120, 120);
return canvas
};
function create(colors, isStroke, vertices) {
var canvas = document.createElement('canvas'),
ctx = canvas.getContext('2d');
// 定义边长、边数、canvas大小
var length = 100,
size = 500;
canvas.width = size;
canvas.height = size;
var getDegree = function (vertices, index) {
return 360 / vertices * (i + 0.5) + 90;
}
var getRadian = function (degree) {
return degree * Math.PI / 180;
};
ctx.beginPath();
for (var i = 0; i < vertices; i++) {
// 计算偏转
var degree = getDegree(vertices, i),
radian = getRadian(degree);
// 增加1/3的canvas大小位移量以免被边缘挡住
var x = Math.cos(radian) * length + size / 3;
var y = Math.sin(radian) * length + size / 3;
ctx.lineTo(x, y);
}
ctx.closePath();
if (isStroke) {
ctx.strokeStyle = colors[1];
ctx.lineWidth = 10;
ctx.stroke();
} else {
ctx.fillStyle = colors[0];
ctx.fill();
};
return canvas
}
//如何生成指定分布的随机数
function randomRange(min, max) {
return Math.random() * (max - min) + min;
};
function randomRangeInt(min, max) {
return Math.round(Math.random() * (max - min)) + min;
};
//正态分布
function mathNormal(x, mu, sigma) {
mu = mu || 0;
sigma = sigma || 1;
var res = (1 / (Math.sqrt(2 * Math.PI) * sigma)) * (Math.exp(-Math.pow(x - mu, 2) / (2 * Math.pow(sigma, 2))));
return res
};
function randomStandardNormal() {
var isTarget = false,
res;
while (!isTarget) {
var a = randomRange(-1, 1);
var b = randomRange(0, 1);
if (b <= mathNormal(a)) {
isTarget = true;
res = [a, b]
};
};
return res;
};
</script>
</body>
</html>