如何用webgl(three.js)搭建不规则建筑模型，客流量热力图模拟

本节课主要讲解如何用webgl(three.js)搭建一个建筑模型，客流量热力图模拟

使用技术说明：

　　这里主要用到了three.js，echart.js以及一些其它的js 与css技术，利用websoket做实时数据传输。

技术亮点：

　　用代码实现不规则建筑三维模型，模型层叠动画、三维会话气泡等

　　实时绘制三维热力云图

　　三维场景内外连线技术

　　有效控制页面内存，及时回收绘画内存，防止内存泄漏。

硬件技术：

　　利用 wifi探针 AI人脸识别技术有效统计各个区域的客流量，清洗重复数据，提升统计算力

三维数据可视化执行的意义：

　　　　为什么需要可视化展示，我总结如下几点：

　　　　a、实用性：直观快速的展示数据，提示告警，快速定位问题，为解决问题节省大量时间，

　　　　b、成本管理：成本对于企业来讲是至关重要的，三维可视化可以为高层领导者，执行者提供最快捷的管理方案

　　　　c、去专业化：本着代码改变世界的愿望，可视化操控就是为了让更多人的能够看懂、操作所谓专业的东西，

　　　　d、科技：越是科技的东西，越需要直观的展示，越是复杂的东西越需要简单的描述。可视化恰恰解决了这个痛点。

　　　　e、体面：企业的数据大屏是企业的形象，三维可视化可快速提示企业高大上的企业形象，向客户展示企业的实力与精致，

　　　　d、轻便：这是技术的实现方式，使用电脑浏览器或者手机浏览器直接查看三维机房，方便快捷

项目前序：

客流量控制是大型公共场所把控安全的重要节点，实时把控各个部位的客流数量，对安全引导，紧急疏散、热门区域查看、商业规划起到很重要的作用。

首先我们先在网上找两张国家会展中心的外景宏观图与内部结构图

图一：这是国家会展中心的外部宏观图，四叶草的外观（寓意繁荣诗意 “四叶草” 金秋盛情迎宾朋）（这张图来自网络，解释权归原作者所有）

图二：这是内部场馆宏观图（这张图来自网络，解释权归原作者所有）

界面效果：

a、首页展示场馆的3D模型总体态势，总人数，各个场馆实时客流，来源，年龄分析分类，以及各场馆客流量同比异常分析

b、单击单个场馆热力详情，进去单个场馆实时客流界面，分析场馆内客流分布于统计情况

c、点击全屏，全屏展示总然模型，双击单个场馆模型，进入单个场馆模型详细展示区

d、点击楼层选择，分解楼层，显示楼层内的实时客流分布情况

e、点击客流范围选择，筛选出范围内的客流区域，有效导航引导客流分布，以及查看热点分布

重要代码实现

　　一、模型代码，用js代码实现模型，而非导入模型文件，有效控制文件大小，提示加载渲染速度

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View Code

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View Code

　　二、界面搭建代码

<!DOCTYPE html>
<html style="padding:0px;margin:0px;">
<head>
    <title></title>
    <meta charset="utf-8" />
    <link href="../css/iconfont.css" rel="stylesheet" />
    <link href="../css/bootstrap.css" rel="stylesheet" />
    <link href="../css/index.css" rel="stylesheet" />
    <script src="../js/jquery-2.2.2.js"></script>
    <script src="../plugs/layer/layer.js"></script>
    <script src="../plugs/layer/laydate/laydate.js"></script>
    <script src="../js/commonFunction.js"></script>
    <script src="../js/index.js"></script>
    <script src="../js/WebSocket.js"></script>
    <script src="../js/index_static.js"></script>
    <script src="../js/cacheData.js"></script>
    <script src="../js/serverAPI.js"></script>
    <script src="../plugs/echarts.min.js"></script>
</head>
<body id="bodyPage" style="padding:0px;margin:0px;" class="indexbody">
    <!---主页---------------------->
    <div id="indexMainPage">


        <div id="mainHeadDiv">
            <table>
                <tr id="mainHeadDiv_thead1">
                    <td id="mainHeadDiv_thead1_td_1">国家会展中心实时客流监控系统</td>
                    <td id="mainHeadDiv_thead1_td_2">场馆实时客流图</td>
                    <td id="mainHeadDiv_thead1_td_3">0000年00月00日 星期日 00:00:00</td>
                </tr>
            </table>
        </div>
        <div id="topTitle">
            <table>
                <tr>
                    <td id="topTitle_td1">场馆当前人数</td>
                    <td id="topTitle_td2">
                        <span>0</span>
                        <span>0</span>
                        <font>,</font>
                        <span>0</span>
                        <span>0</span>
                        <span>0</span>
                        <font>,</font>
                        <span>0</span>
                        <span>0</span>
                        <span>0</span>
                        <font>,</font>
                        <span>0</span>
                        <span>0</span>
                        <span>0</span>

                    </td>
                </tr>
            </table>
        </div>
        <div id="leftMainDiv_ztts">
            <div id="divFullScreenBtn">
                全屏
            </div>
            <div id="leftMainDiv_ztts_bottom_staticDiv">
                <table style="width:100%;height:100%;">
                    <tr>
                        <td id="leftMainDiv_ztts_bottom_staticDiv_btns">
                            <button>昨天</button>
                            <button>今日</button>
                            <button>全部</button>
                        </td>
                        <td id="leftMainDiv_ztts_bottom_staticDiv_content1"></td>
                        <td id="leftMainDiv_ztts_bottom_staticDiv_split"></td>
                        <td id="leftMainDiv_ztts_bottom_staticDiv_content2"></td>
                    </tr>
                </table>
            </div>
            <div id="leftMainDiv_ztts_rightTop_staticDiv">
                <table id="leftMainDiv_ztts_rightTop_staticDivTable" style="width:90%;">
                    <tr>
                        <td style="width:50%" id="td_pnub_1"><font >1H</font>:<font>0</font>人</td>
                        <td id="td_pnub_6_1"><font>6.1H</font>:<font>0</font>人</td>
                    </tr>
                    <tr>
                        <td id="td_pnub_2"><font>2H</font>:<font>0</font>人</td>
                        <td id="td_pnub_6_2"><font>6.2H</font>:<font>0</font>人</td>
                    </tr>
                    <tr>
                        <td id="td_pnub_3"><font >3H</font>:<font>0</font>人</td>
                        <td id="td_pnub_7_1"><font >7.1H</font>:<font>0</font>人</td>
                    </tr>
                    <tr>
                        <td id="td_pnub_4_1"><font >4.1H</font>:<font>0</font>人</td>
                        <td id="td_pnub_7_2"><font>7.2H</font>:<font>0</font>人</td>
                    </tr>
                    <tr>
                        <td id="td_pnub_4_2"><font >4.2H</font>:<font>0</font>人</td>
                        <td id="td_pnub_8_1"><font >8.1H</font>:<font>0</font>人</td>
                    </tr>
                    <tr>
                        <td id="td_pnub_5_1"><font >5.1H</font>:<font>0</font>人</td>
                        <td id="td_pnub_8_2"><font>8.2H</font>:<font>0</font>人</td>
                    </tr>
                    <tr>
                        <td id="td_pnub_5_2"><font >5.2H</font>:<font>0</font>人</td>
                        <td></td>
                    </tr>
                </table>
            </div>
            <div id="leftMainDiv_ztts_rightBottom_staticDiv">
                <div id="leftMainDiv_ztts_rightBottom_staticDivContent">
                 
                </div>
            </div>
            <div id="leftMainDiv_ztts_msg">
                <font id="leftMainDiv_ztts_msg_font1">
                    场馆当前正常
                </font>
                    <br />
                    <font id="leftMainDiv_ztts_msg_font2">点击查看详情</font>
</div>

        </div>
        <div id="rightMainDiv">
            <div id="rightMainDiv_ssklsh">
                <div id="rightMainDiv_ssklshContent">

                </div>
            </div>
            <div id="rightMainDiv_klsjfx">
                <div id="rightMainDiv_klsjfxContent">
                    <table style="width:100%;height:100%;">
                        <tr>
                            <td style="width:70%;height:50%;">
                                <div id="rightMainDiv_klsjfxContent_1">
                                    <table style="height:100%;width:100%;">
                                        <tr>
                                            <td  id="rightMainDiv_klsjfxContent_1_title">来源</td>
                                            <td id="rightMainDiv_klsjfxContent_1_chart"></td>
                                        </tr>
                                    </table>
                                </div>
                            </td>
                            <td rowspan="2">
                                <div id="rightMainDiv_klsjfxContent_2">
                                    <table style="height:100%;width:100%;">
                                        <tr>
                                            <td id="rightMainDiv_klsjfxContent_2_title">性别</td>
                                        </tr>
                                        <tr>
                                            <td id="rightMainDiv_klsjfxContent_2_chart"></td>
                                        </tr>
                                    </table>
                                </div>
                            </td>
                        </tr>
                        <tr>
                        <td><div id="rightMainDiv_klsjfxContent_3">
    <table style="height:100%;width:100%;">
        <tr>
            <td id="rightMainDiv_klsjfxContent_3_title">年龄</td>
            <td id="rightMainDiv_klsjfxContent_3_chart"></td>
        </tr>
    </table>
</div></td>
                        </tr>
                    </table>
                  
                    
                </div>
            </div>
        </div>
    </div>
    <!---主页结束---------------------->
    <iframe id="iframe_3d" src="3DModels.html">
       
    </iframe>
    <!---楼层---------------------->
    <div id="indexFloorPage" style="display:none;">

        <div id="mainHeadDiv2">
            <table>
                <tr id="mainHeadDiv2_thead1">
                    <td id="mainHeadDiv2_thead1_td_1">
                        国家会展中心实时客流监控系统</br>
                        <font id="mainHeadDiv2_thead1_td_font">0000年00月00日 星期日 00:00:00</font>
                    </td>
                    <td id="mainHeadDiv2_thead1_td_2">场馆实时客流图</td>
                    <td id="mainHeadDiv2_thead1_td_3">四号馆实时在馆人数:4555</td>
                </tr>
            </table>
        </div>

        <div id="btn_left">
            <div class="btn_floor" id="btn_floor1">
                <img src="../img/pageImg/floorbtn.png" /><font>一楼</font>
            </div>
            <div class="btn_floor" id="btn_floor2">
                <img src="../img/pageImg/floorbtn.png" /><font>二楼</font>
            </div>
            <div class="btn_floor" id="btn_floorAll">
                <img src="../img/pageImg/floorbtn.png" /> <font>整楼</font>
            </div>
        </div>

        <div id="btn_right">

            <div class="btn_people" id="btn_p30">
                <font>30-45</font><img src="../img/pageImg/floorPeople.png" />
            </div>
            <div class="btn_people" id="btn_p20">
                <font>20-35</font><img src="../img/pageImg/floorPeople.png" />
            </div>
            <div class="btn_people" id="btn_p10">
                <font>10-25</font><img src="../img/pageImg/floorPeople.png" />
            </div>
            <div class="btn_people" id="btn_p0">
                <font>0-15</font><img src="../img/pageImg/floorPeople.png" />
            </div>
        </div>
    </div>
    <!---楼层结束---------------------->
    <!---统计详情---------------------->
    <div id="indexStaticPage" style="display:none;">
        <div id="mainHeadDiv3">
            <table>
                <tr id="mainHeadDiv3_thead1">
                    <td id="mainHeadDiv3_thead1_td_1">
                        国家会展中心实时客流监控系统</br>
                        <font id="mainHeadDiv3_thead1_td_font">0000年00月00日 星期日 00:00:00</font>
                    </td>
                    <td id="mainHeadDiv3_thead1_td_2">场馆实时客流图</td>
                    <td id="mainHeadDiv3_thead1_td_3">实时在馆总人数:4555</td>
                </tr>
            </table>
        </div>
        <div id="staticPageMain_content">
            <div id="staticPage_topHalf">
                <div id="staticWhereFromDiv">
                    <div id="staticWhereFromDivContent">
                        <div id="staticWhereFromDivContentTitle">
                            场馆来源地
                        </div>
                        <div id="staticWhereFromDivContentChart">

                        </div>
                    </div>
                </div>
                <div id="staticMainDiv">
                    <div id="staticMainDivContent">
                        <div id="staticMainDivContent_hitMap">

                        </div>
                        <div id="staticMainDivContent_hitMapBtn">
                            <div id="staticMainDivContent_hitMapBtnSpan">&nbsp;&nbsp;</div>
                            <font id="staticMainDivContent_hitMapBtnfont">热力图</font>
                        </div>
                    </div>
                </div>
                <div id="staticAppDiv">

                    <div id="staticAppDivContent">
                        <div id="staticAppDivContentTitle">
                            APP排名
                        </div>
                        <div id="staticAppDivContentChart">

                        </div>
                    </div>
                </div>
            </div>
            <div id="staticPage_bottomHalf">
                <div id="staticAgeDiv">
                    <div id="staticAgeDivContent">
                        <div id="staticAgeDivContentTitle">
                            年龄分布
                        </div>
                        <div id="staticAgeDivContentChart">

                        </div>
                    </div>
                </div>
                <div id="staticRealPeopleDiv">
                    <div id="staticRealPeopleDivContent">
                        <div id="staticRealPeopleDivContentTitle">
                            4.1H实时客流趋势图
                        </div>
                        <div id="staticRealPeopleDivContentChart">

                        </div>
                    </div>
                </div>
                <div id="staticHistorySexDiv">

                    <div id="staticHistorySexDivContent">
                       <div id="staticHistorySexDivContentTitle">
                           男女比例
                        </div>
                        <div id="staticHistorySexDivContentChart">

                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
    <!---home键---------------------->
    <div id="homeBtn">

    </div>
    <!---home END---------------------->
    <!---统计结束---------------------->

    <script>
        $(function () {
            indexPage = new IndexPage();
            indexPage.initPageUI();
            cacheData = new CacheData();
            cacheData.init();
            serverAPI = new ServerAPI();
            serverAPI.startServer();
        });
    </script>
</body>
</html>

View Code

　　三、逻辑控制代码

  1 function ModelBusiness() { }
  2 ModelBusiness.prototype.init = function () {
  3     var _this = this;
  4     _this.currentShow = "mainModel";
  5     w3DShowObj.mouseMoveEvent = _this.mouseMoveEvent;
  6 }
  7 //双击事件
  8 ModelBusiness.prototype.dbclickForeFunc = function (_obj, _face) {
  9     var _this = this;
 10     if (indexPage.currentShow != "main") {
 11 
 12         if ("|m1_room_4_1|m1_room_4_2|m1_mark_4_1|m1_mark_4_2|m1_hitmap_b4_f2|m1_hitmap_b4_f1|".indexOf("|" + _obj.name + "|") >= 0) {
 13             this.changeToDetailModel(function () {
 14                 indexPage.showLeftAndRightBottons();
 15             });
 16         } else {
 17             console.log(_obj.name);
 18             if (_obj.name.indexOf("m1_") >= 0) {
 19                 layer.msg("选中的场馆无对应模型");
 20             }
 21         }
 22     } else {
 23         console.log(_obj.name);
 24         indexPage.hideDetailBtn();
 25         //显示热力图
 26         if (_obj.name.indexOf("m1_room_") >= 0 || _obj.name.indexOf("m1_mark_") >= 0) {
 27             var buildbub = parseInt(_obj.name.split("_")[2]);
 28             var floorNub = 0;
 29             if (_obj.name.split("_")[3]) {
 30                 floorNub = parseInt(_obj.name.split("_")[3]);
 31             }
 32             //此处获取热力图数据
 33             _this.gethitMapData(buildbub, floorNub, function (data) {
 34                 var postion = _this.hitMapToABPosition["h" + buildbub];
 35                 var roomname = "m1_room_" + buildbub + "_" + floorNub;
 36                 if (floorNub == 0) {
 37                     roomname = "m1_room_" + buildbub;
 38                 }
 39                 var room = w3DShowObj.commonFunc.findObject(roomname);
 40                 var position = {};
 41                 position.x = room.position.x + postion.x;
 42                position.y = room.position.y + postion.y+10;
 43                position.z = room.position.z + postion.z;

                        
                        
                            
                            版权声明：本文来源博客园，感谢博主原创文章，遵循 CC 4.0 by-sa 版权协议，转载请附上原文出处链接和本声明。

                            原文链接：https://www.cnblogs.com/yeyunfei/p/10473050.html

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                                    发表于 2019-11-17 14:09:15
                                
                                阅读 ( 782 )
                                分类：前端

如何用webgl(three.js)搭建不规则建筑模型，客流量热力图模拟

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