webgl(three.js)实现室内三维定位,3D定位,3D楼宇bim、实时定位三维可视化解决方案——第十四课（定位升级版）

序：

　　还是要抽出时间看书的，迷上了豆豆的作品，最近在看《天幕红尘》，书中主人公的人生价值观以及修为都是让我惊为叹止。很想成为那样的人，但是再看看自己每天干的事，与时间的支配情况，真是十分的汗颜。除了为了生活所必须的工作时间外，还有大部分零散的时间不是给了短视频，就是给了短讯文章，简讯媒介，不说是毫无意义吧，但也着实是浮躁虚夸了。

　　用豆豆作品里的话术，"透视社会依次有三个层面：技术、制度和文化。小到一个人，大到一个国家一个民族，任何一种命运归根到底都是那种文化属性的产物"。 我终究是干技术的，还是无法洞察其中奥义，只是熟悉了几门糊口的技巧而已，究竟其本质便无所得之了，或者说依然没找到那安身立命的意义。长路漫漫，且寻着吧。人生也许也像某个技术门类，需要不断的回顾，记录，总结。才能真正发现一些实质性的东西。究竟涅槃，如来？

　　本想谈技术，话题终究是扯远了，但总归要扯点啥吧，练练文笔也好，述述心态也罢，反正也少有人看写在前面的废话，这任算是，无伤技术之大雅，无关文章之紧要了。

　　还是闲话少序，切入正题吧。

前言：

　　前面的课程介绍过定位相关的技术解决方案，《webgl(three.js)实现室内定位,楼宇bim、实时定位三维可视化解决方案——第五课》 ，从硬件到可视化，都已经比较全面的讲述了一遍,这边文章相当于那篇文件的一个改进版本，主要是在可视化呈现方面，根据具体的实施项目，在可视化方面做一个比较全面的技术剖析。

关于硬件采集端技术，因为精度要求不高，任然采用的是：低功耗有源RFID+读卡器基地器+智能分析。

关于室内定位市场前景，那篇文章也做了一些分析，这里不做赘述。

一、整体效果

还是先看整体效果，再探具体实现技术的究竟

上图展示整体园区以及周边的科技感效果。

上图展示近距离整体园区建设风貌。

二、功能展示

2.1、展开楼层

楼层展开实现比较简单，首先再建模的时候讲究分离模型，不能讲楼层内部，楼层外墙一股脑做成一个模型，需要讲模型分解，分开建模，

实现楼层展开就比较方便了，只需要控制外墙模型隐藏，然后控制每个楼层的的高度位置就可以。

实现代码如下：

ModelBussiness.prototype.tempNameList = [];
ModelBussiness.prototype.tempDataList = [];
ModelBussiness.prototype.videoDataCache = {};
ModelBussiness.prototype.showFloorState = "close";
//显示楼层内部情况
ModelBussiness.prototype.showBuildFloors = function (buildnub, callBack) {
    var _this = this
    _this.showFloorState = "open";
    var builds = WT3DObj.commonFunc.findObjectsByNames(["wjwb1_232", "wjwbuilds_55"]);
    //隐藏大楼
    WT3DObj.commonFunc.setSkinColorByname("wjwb1_232", 0x00ffff);
    WT3DObj.commonFunc.changeCameraPosition({ x: 3652.5144280174954, y: 990.805706980618, z: 5107.394022507952 }, { x: 1914.4771268074287, y: -723.8717024746979, z: 2181.6118222317314 }, 500,
        function () { });
    WT3DModel.commonFunc.changeObjsOpacity(builds, 1, 0.1, 500, function (obj) {
            var _obj = WT3DObj.commonFunc.findObject("wjwb1_232");
            if (typeof (_obj.oldPositionY) == 'undefined') {
                _obj.oldPositionY = _obj.position.y
            }
            _obj.position.y = 1000000;
            _obj.visible = false;

        WT3DObj.commonFunc.changeCameraPosition({ x: 3247.2796000738454, y: 2191.5405041410445, z: 5229.077446579187 }, { x: 2719.261239206996, y: 80.49406057323252, z: 3015.8739289848077 }, 500,
            function () { });

        var names = ["floor_1", "floor_2", "floor_3", "floor_4", "floor_5", "floor_6"];
        var floors = WT3DObj.commonFunc.findObjectsByNames(names);
        modelBussiness.openFloors(floors, function () {
            if (callBack) {
                callBack();
            }
        });
    });

}
//隐藏楼层内部情况
ModelBussiness.prototype.hideBuildFloors = function (buildnub, callBack) {
    var _this = this
    _this.showFloorState = "close";
    var names = ["floor_1", "floor_2", "floor_3", "floor_4", "floor_5", "floor_6"];
    var builds = WT3DObj.commonFunc.findObjectsByNames(["wjwb1_232", "wjwbuilds_55"]);
    var floors = WT3DObj.commonFunc.findObjectsByNames(names);
    this.closeFloors(floors, function () {
        $.each(builds, function (_index, _obj) {
            if (typeof (_obj.oldPositionY) == 'undefined') {
                _obj.oldPositionY = _obj.position.y
            }
            _obj.position.y = _obj.oldPositionY;
            _obj.visible = true;
        })
        WT3DModel.commonFunc.changeObjsOpacity(builds, 0, 1, 1000, function (obj) {
            WT3DObj.commonFunc.setSkinColorByname("wjwb1_232", 0x000000);
        });
        if (callBack) {
            callBack();
        }
    })

}
//显示楼层
ModelBussiness.prototype.openFloors = function (floors, callBack) {
    //显示楼层
    $.each(floors, function (_index, _obj) {
        if (typeof (_obj.oldPositionY) == 'undefined') {
            _obj.oldPositionY = _obj.position.y
        }
        if (_obj.position.y > 100000) {
            _obj.position.y -= 1000000;
        }
        _obj.visible = true;
    });
    setTimeout(function () {
        $.each(floors, function (_index, _obj) {
        //展开楼层
        _obj.floorPosition = _obj.position.y;
        var floor = parseInt(_obj.name.split("_")[1]);
        height = (floor - 1) * 300 +50;
        new Tn(_obj.position).to({//补充间隔动画
            y: height
        }, 500).start();
        });
        setTimeout(function () {

        if (callBack) {
            callBack()
        }
        },600);
    }, 500)

}

2.2、绘制定位路径

绘制定位路径，相比楼层展开要复杂一些，这里要用到定位设备与虚拟模型之间的关联与绑定，然后标记跟着模型运动

主要分为以下几步：

　　第一、建模

　　第二、建立虚拟模型，绑定设备id

　　第三、数据id转换为模型id

　　第四、寻址，找到对应的虚拟模型列表、并且获取各自位置

　　第五、根据位置画线、移动标签

三、具体实现

3.1、创建周遭环境模型，特效模型等

建模代码如下：

[{"show":true,"uuid":"","name":"cube2_6","objType":"cube2","length":200,"width":200,"height":200,"x":0,"y":200,"z":0,"style":{"skinColor":16777215,"skin":{"skin_up":{"skinColor":16777215,"imgurl":"../../img/3dImg/rack_inside.jpg","materialType":"basic","side":1,"opacity":1},"skin_down":{"skinColor":16777215},"skin_fore":{"skinColor":16777215},"skin_behind":{"skinColor":16777215},"skin_left":{"skinColor":16777215},"skin_right":{"skinColor":16777215}}},"showSortNub":6},{"show":true,"uuid":"","name":"wjwbuilds_270","objType":"GroupObj","scale":{"x":1,"y":1,"z":1},"position":{"x":0,"y":0,"z":0},"rotation":[{"direction":"x","degree":0}],"modelGroupName":"wjwbuilds","modelSrc":"../js/msj3D/sourse/customModels/models/wjwbuilds.json?v1.50.4428873971970626","srcType":"filePath","showSortNub":270}]

3.2、创建外墙模型

单独创建需要裂解的大楼外墙模型，具体如下：

[{"show":true,"uuid":"","name":"cube2_6","objType":"cube2","length":200,"width":200,"height":200,"x":0,"y":200,"z":0,"style":{"skinColor":16777215,"skin":{"skin_up":{"skinColor":16777215,"imgurl":"../../img/3dImg/rack_inside.jpg","materialType":"basic","side":1,"opacity":1},"skin_down":{"skinColor":16777215},"skin_fore":{"skinColor":16777215},"skin_behind":{"skinColor":16777215},"skin_left":{"skinColor":16777215},"skin_right":{"skinColor":16777215}}},"showSortNub":6},{"show":true,"uuid":"","name":"wjwb1_7","objType":"GroupObj","scale":{"x":1,"y":1,"z":1},"position":{"x":0,"y":0,"z":0},"rotation":[{"direction":"x","degree":0}],"modelGroupName":"wjwb1","modelSrc":"../js/msj3D/sourse/customModels/models/wjwb1.json?v1.50.7245325959034448","srcType":"filePath","showSortNub":7}]

3.3、其它细节楼宇模型

作为辅助美观模型，单独创建模型如下：

[{"show":true,"uuid":"","name":"wjwb2_38","objType":"GroupObj","scale":{"x":1,"y":1,"z":1},"position":{"x":0,"y":0,"z":0},"rotation":[{"direction":"x","degree":0}],"modelGroupName":"wjwb2","modelSrc":"../js/msj3D/sourse/customModels/models/wjwb2.json?v1.50.2327047742615571","srcType":"filePath","showSortNub":38}]

3.4、楼层模型

各楼层模型单独创建，便于控制与展示

[{"show":true,"uuid":"","name":"wjwf1_40","objType":"GroupObj","scale":{"x":1,"y":1,"z":1},"position":{"x":0,"y":0,"z":0},"rotation":[{"direction":"x","degree":0}],"modelGroupName":"wjwf1","modelSrc":"../js/msj3D/sourse/customModels/models/wjwf1.json?v1.50.13740666293081194","srcType":"filePath","showSortNub":40}]

多角度观察一下楼层模型：

单元测试楼宇模型裂解效果

四、定位详解

本想放到第三章一起讲解，但这部分实现比较重要，所以单独一章讲解

如上图，粉色的点位表示房间门内的辅助点，亮绿色的点位表示设备所对应的门外辅助点

我们这里只需要绑定门外的辅助点到对应的设备就可以

当再某处停留事件过长，我们通常判断已经进入房间，直接讲门外门内两个点链接，即可。

4.1、存储虚拟点位

//使用二叉树储存法，将辅助点与设备id进行绑定。
 {
        "cp": { "x": 2898.062281840033, "y": 726.9857194504245, "z": 4474.268417657025 }, 
　　　　 "ct": { "x": 2919.5843654655655, "y": -325.13303496900545, "z": 3386.2841814639646 },
        line: [2010, 2002, 2016, 2028, 2018, 2032, ["h1", 2038], 2026, 2022, 2036, 2020, [2000, 2034], 2004, 2014],//二叉树存储数据
        Points: [{ "name": "f2d_2010", "position": { "x": 2824.843, "y": 82.926, "z": 3874.214 } }, { "name": "f2d_2016", "position": { "x": 2824.843, "y": 82.926, "z": 3977.133 } }, { "name": "f2d_2028", "position": { "x": 2824.843, "y": 82.926, "z": 4010.544 } }, { "name": "f2d_2018", "position": { "x": 2824.843, "y": 82.926, "z": 4084.157 } }, { "name": "f2d_2032", "position": { "x": 2824.843, "y": 82.926, "z": 4110.372 } }, { "name": "f2d_2038", "position": { "x": 2824.843, "y": 82.926, "z": 4191.56 } }, { "name": "f2d_h1", "position": { "x": 2824.843, "y": 82.926, "z": 4145.947 } }, { "name": "f2d_2026", "position": { "x": 2894.811, "y": 82.926, "z": 4142.355 } }, { "name": "f2d_2022", "position": { "x": 2929.456, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2036", "position": { "x": 2993.039, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2020", "position": { "x": 3127.172, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2000", "position": { "x": 3138.358, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2014", "position": { "x": 3196.413, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2004", "position": { "x": 3159.209, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2034", "position": { "x": 3140.007, "y": 82.926, "z": 4238.683 } }, { "name": "f2d_2010_room", "position": { "x": 2794.836, "y": 82.926, "z": 3874.214 } }, { "name": "f2d_2002", "position": { "x": 2820.207, "y": 82.926, "z": 3901.037 } }, { "name": "f2d_2002_room", "position": { "x": 2794.657, "y": 82.926, "z": 3901.037 } }, { "name": "f2d_2016_room", "position": { "x": 2795.467, "y": 82.926, "z": 3977.133 } }, { "name": "f2d_2028_room", "position": { "x": 2790.713, "y": 82.926, "z": 4010.544 } }, { "name": "f2d_2018_room", "position": { "x": 2797.472, "y": 82.926, "z": 4074.339 } }, { "name": "f2d_2032_room", "position": { "x": 2798.134, "y": 82.926, "z": 4110.372 } }, { "name": "f2d_2038_room", "position": { "x": 2796.368, "y": 82.926, "z": 4191.56 } }, { "name": "f2d_2026_room", "position": { "x": 2894.811, "y": 82.926, "z": 4076.308 } }, { "name": "f2d_2022_room", "position": { "x": 2929.456, "y": 82.926, "z": 4107.921 } }, { "name": "f2d_2036_room", "position": { "x": 2993.039, "y": 82.926, "z": 4103.112 } }, { "name": "f2d_2020_room", "position": { "x": 3127.172, "y": 82.926, "z": 4110.79 } }, { "name": "f2d_2000_room", "position": { "x": 3138.358, "y": 82.926, "z": 4156.895 } }, { "name": "f2d_2004_room", "position": { "x": 3159.209, "y": 82.926, "z": 4156.794 } }, { "name": "f2d_2014_room", "position": { "x": 3196.413, "y": 82.926, "z": 4157.111 } }, { "name": "f2d_2034_room", "position": { "x": 3165.756, "y": 82.926, "z": 4238.683 } }]
    }

//存储辅助点模型位置到数组中，方便快速查找。
[{ "name": "f2d_2010", "position": { "x": 2824.843, "y": 82.926, "z": 3874.214 } }, { "name": "f2d_2016", "position": { "x": 2824.843, "y": 82.926, "z": 3977.133 } }, { "name": "f2d_2028", "position": { "x": 2824.843, "y": 82.926, "z": 4010.544 } }, { "name": "f2d_2018", "position": { "x": 2824.843, "y": 82.926, "z": 4084.157 } }, { "name": "f2d_2032", "position": { "x": 2824.843, "y": 82.926, "z": 4110.372 } }, { "name": "f2d_2038", "position": { "x": 2824.843, "y": 82.926, "z": 4191.56 } }, { "name": "f2d_h1", "position": { "x": 2824.843, "y": 82.926, "z": 4145.947 } }, { "name": "f2d_2026", "position": { "x": 2894.811, "y": 82.926, "z": 4142.355 } }, { "name": "f2d_2022", "position": { "x": 2929.456, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2036", "position": { "x": 2993.039, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2020", "position": { "x": 3127.172, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2000", "position": { "x": 3138.358, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2014", "position": { "x": 3196.413, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2004", "position": { "x": 3159.209, "y": 82.926, "z": 4137.219 } }, { "name": "f2d_2034", "position": { "x": 3140.007, "y": 82.926, "z": 4238.683 } }, { "name": "f2d_2010_room", "position": { "x": 2794.836, "y": 82.926, "z": 3874.214 } }, { "name": "f2d_2002", "position": { "x": 2820.207, "y": 82.926, "z": 3901.037 } }, { "name": "f2d_2002_room", "position": { "x": 2794.657, "y": 82.926, "z": 3901.037 } }, { "name": "f2d_2016_room", "position": { "x": 2795.467, "y": 82.926, "z": 3977.133 } }, { "name": "f2d_2028_room", "position": { "x": 2790.713, "y": 82.926, "z": 4010.544 } }, { "name": "f2d_2018_room", "position": { "x": 2797.472, "y": 82.926, "z": 4074.339 } }, { "name": "f2d_2032_room", "position": { "x": 2798.134, "y": 82.926, "z": 4110.372 } }, { "name": "f2d_2038_room", "position": { "x": 2796.368, "y": 82.926, "z": 4191.56 } }, { "name": "f2d_2026_room", "position": { "x": 2894.811, "y": 82.926, "z": 4076.308 } }, { "name": "f2d_2022_room", "position": { "x": 2929.456, "y": 82.926, "z": 4107.921 } }, { "name": "f2d_2036_room", "position": { "x": 2993.039, "y": 82.926, "z": 4103.112 } }, { "name": "f2d_2020_room", "position": { "x": 3127.172, "y": 82.926, "z": 4110.79 } }, { "name": "f2d_2000_room", "position": { "x": 3138.358, "y": 82.926, "z": 4156.895 } }, { "name": "f2d_2004_room", "position": { "x": 3159.209, "y": 82.926, "z": 4156.794 } }, { "name": "f2d_2014_room", "position": { "x": 3196.413, "y": 82.926, "z": 4157.111 } }, { "name": "f2d_2034_room", "position": { "x": 3165.756, "y": 82.926, "z": 4238.683 } }]

4.2、具体实现画线定位

实现画线定位是利用设备id找到对应辅助点，然后将辅助点链接起来的方式

定位标签移动，使用补间动画移动效果即可。

//显示路径
function drawLineFunc(floor, start, end, timeLong, startOut, endIn) {
    //drawLineDataList.push({
    //    floor: 楼层,
    //    start: 开始设备点id,
    //    end: 结束设备点id,
    //    timeLong: 移动时长,
    //    startOut: 是否是从房间里出来,
    //    endIn: 是否进入房间
    //});

    WT3DObj.commonFunc.changeCameraPosition(ConfigData["f" + floor].cp, ConfigData["f" + floor].ct, 300,
        function () { });
    //生成路径节点数组
    var startindex = -1;
    var startindex2 = -1;
    var endindex = -1;
    var endindex2 =-1;
    var linedata = ConfigData["f" + floor].line;
    $.each(linedata, function (_index, _obj) {
        if (_obj instanceof Array) {
            $.each(_obj, function (_cindex, _cobj) {
                if (_cobj + "" == start + "") {
                    startindex = _index;
                    startindex2 = _cindex;
                }
                if (_cobj + "" == end + "") {
                    endindex = _index;
                    endindex2 = _cindex;
                }
            })
        } else {
            if (_obj + "" == start + "") {
                startindex = _index;
            }
            if (_obj + "" == end + "") {
                endindex = _index;
            }
        }
    });
    var pointPath = [];
    if (startindex < endindex) {
        for (var i = startindex; i <= endindex; i++) {
            var pointnub = linedata[i];
            if (pointnub instanceof Array) {
                pointPath.push(pointnub[0]);
            } else {
                pointPath.push(pointnub);
            }
        }
    }
    else if (startindex > endindex) {
        for (var i = startindex; i >= endindex; i--) {
            var pointnub = linedata[i];
            if (pointnub instanceof Array) {
                pointPath.push(pointnub[0]);
            } else {
                pointPath.push(pointnub);
            }
        }
    }
    if (endindex2 > 0) {
        var pointnub = linedata[endindex];
        for (var i = 1; i <= endindex2; i++) {
            pointPath.push(pointnub[i]);
        }
    }
    if (startindex2 != -1) {
        var startarray = [];
        var pointnub = linedata[startindex];
        for (var i = startindex2; i >0; i--) {
            startarray.push(pointnub[i]);
        }
        pointPath = startarray.concat(pointPath);
    }
    var linePositionArray = ConfigData["f" + floor].Points;
    var lineObjs = {}
    $.each(linePositionArray, function (_index, _obj) {
        lineObjs[_obj.name] = _obj.position;
    });
    var pathpoints = [];
    var positiony = WT3DObj.commonFunc.findObject("floor_" + floor).position.y ;
    $.each(pointPath, function (_index, _obj) {

        if (lineObjs["f" + floor + "d_" + _obj]) {
            pathpoints.push({
                x: lineObjs["f" + floor + "d_" + _obj].x,
                y: positiony ,
                z: lineObjs["f" + floor + "d_" + _obj].z,
                type: "nomal"
            });
        }

    });
    if (startOut) {
        $.each(linePositionArray, function (_index, _obj) {
            if (_obj.name == "f" + floor + "d_" + start + "_room") {
                pathpoints = [{
                    x: _obj.position.x,
                    y: positiony,
                    z: _obj.position.z,
                    type: "nomal"
                }].concat(pathpoints);
               }
        });
    }
    if (endIn) {
        if (end) {

            $.each(linePositionArray, function (_index, _obj) {
                if (_obj.name == "f" + floor + "d_" + end +"_room") {
                    pathpoints.push({
                        x: _obj.position.x,
                        y: positiony,
                        z: _obj.position.z,
                        type: "nomal"
                    })
                }
            });
        }
    }；
　　//创建节点模型
    var modelsNames = modelBussiness.createRoadLine(pathpoints, new Date().getTime(), timeLong);
    CModelNames = CModelNames.concat(modelsNames);
}

画线与移动具体实现如下：

ModelBussiness.prototype.Drawing = false;
ModelBussiness.prototype.createRoadLine = function (points, index, timeLong) {
    if (modelBussiness.Drawing) {
        return;
    }
    modelBussiness.Drawing = true;
    var addModelNames = [];
    //points.push({
    //    x: _pobj[1],
    //    y: 0,
    //    z: _pobj[2],
    //    type: "nomal"
    //});
　　//创建移动标签模型代码
    var moveobj = {
        "name": "moveObj", "objType": "picIdentification", "size": { "x": 30, "y": 30 }, "position": {
            x: points[0].x,
            y: points[0].y+30,
            z: points[0].z
        }, "imgurl": "../img/3dImg/xhd.png", "showSortNub":1, "show": true, "customType1": "", "customType2": "", "animation": null, "dbclickEvents": null, "wx": null, "wy": null, "BindDevId": null, "BindDevName": null, "devInfo": null, "BindMeteId": null, "BindMeteName": null
    };

    var models = [];
    var moveObjModel = WT3DObj.commonFunc.findObject("moveObj");
    if (!moveObjModel) {
        models.push(moveobj);
        addModelNames.push("moveObj");
    }
//创建线模型代码
    var model = { "show": true, "uuid": "", "name": "splinecurve_7", "objType": "SplineCurve", "segments": 24, "points": [{ "x": 0, "y": 300, "z": 0 }, { "x": 100, "y": 250, "z": 100 }, { "x": 100, "y": 400, "z": 400 }], "style": { "skinColor": 0xDFFD6 }, "LineStyle": "LinePieces", "position": { "x": 0, "y":0, "z": 0 }, "scale": { "x": 1, "y": 1, "z": 1 }, "rotation": [{ "direction": "x", "degree": 0 }, { "direction": "y", "degree": 0 }, { "direction": "z", "degree": 0 }], "showSortNub": 1, "customType1": "", "customType2": "", "animation": null, "dbclickEvents": null, "BindDevId": null, "BindDevName": null, "devInfo": null, "BindMeteId": null, "BindMeteName": null }
    model.name = "Line" + index;
    addModelNames.push("Line" + index);
    model.segments = points.length - 1;

    var newpoints = [];
    var pointlength = [];//单段长度数组
    var allLength = 0;//总长度
    for (var i = 0; i < points.length; i++) {
        newpoints.push(points[0]);
        if (i < points.length - 1) {
           var length= Math.sqrt((points[i + 1].x - points[i].x) * (points[i + 1].x - points[i].x)
                + (points[i + 1].y - points[i].y) * (points[i + 1].y - points[i].y)
                + (points[i + 1].z - points[i].z) * (points[i + 1].z - points[i].z))
            pointlength.push(length);
            allLength += length;
        }
    }

    model.points = newpoints;
    models.push(model);
    var modelnames = [];
    for (var i = 0; i < points.length - 1; i++) {
        if (points[i].x == points[i + 1].x && points[i].z == points[i + 1].z) {
            continue;
        }
        var position = {
            x: (points[i].x + points[i + 1].x) / 2,
            y: points[i].y,
            z: (points[i].z + points[i + 1].z) / 2
        }
        var rotaiionz = this.getAngle(points[i].x, points[i].z, points[i + 1].x, points[i + 1].z) / 180 * Math.PI + Math.PI / 2;
        models.push({ "show": true, "uuid": "", "name": model.name + "_" + i, "objType": "Lathe", "position": position, "points": [{ "x": 0, "y": 0, "z": 0 }, { "x": 2, "y": 10, "z": 0 }], "style": { "skinColor": 1433087, "side": 2, "opacity": 1 }, "segments": 12, "radialSegments": 12, "closed": true, "phiStart": 0, "phiLength": 6.283185307179586, "showSortNub": 7, "customType1": "", "customType2": "", "animation": null, "dbclickEvents": null, "rotation": [{ "direction": "x", "degree": Math.PI / 2 }, { "direction": "y", "degree": 0 }, { "direction": "z", "degree": rotaiionz }], "radius": null, "scale": { "x": 1, "y": 1, "z": 1 }, "BindDevId": null, "BindDevName": null, "devInfo": null, "BindMeteId": null, "BindMeteName": null });
        modelnames.push(model.name + "_" + i);
        addModelNames.push(model.name + "_" + i);
    }
　　//加载模型
    WT3DObj.commonFunc.loadModelsByJsons(models, { x: 0, y: 0, z: 0 }, { x: 0, y: 0, z: 0 }, true, function () {
        if (!moveObjModel) {
            moveObjModel = WT3DObj.commonFunc.findObject("moveObj");
        }
        var _obj = WT3DObj.commonFunc.findObject(model.name);
        var _objfores = WT3DObj.commonFunc.findObjectsByNames(modelnames);
        $.each(_objfores, function (_findex, _fobj) {
            _fobj.visible = false;
        });
        if (!timeLong) {
            timeLong = 0;
        }
        var runTime = 0;
        for (var i = 0; i < points.length - 1; i++) {
            (function (_index) {//创建闭包
　　　　　　　　

//获取小节点之间的运动时长

var stepTime = pointlength[_index] / allLength * timeLong; 
setTimeout(function () {

　　//创建路径运动延迟等待 

new Tn(_obj.geometry.vertices[_index+1]).to({ x: points[_index + 1].x, y: points[_index + 1].y, z: points[_index + 1].z, },

 stepTime).onUpdate(function () { for (var j = _index+1; j < points.length; j++) 

{ _obj.geometry.vertices[j].x = this.x; _obj.geometry.vertices[j].y = this.y;
 _obj.geometry.vertices[j].z = this.z; }; moveObjModel.position.x = this.x; 
moveObjModel.position.y = this.y+30; moveObjModel.position.z = this.z; 
_obj.geometry.verticesNeedUpdate = true; }).start(); 
setTimeout(function () { $.each(_objfores, 

function (_findex, _fobj) { if (_fobj.name == model.name + "_" + _index) { _fobj.visible = true; } }); }, stepTime / 2); }, runTime); runTime += stepTime+20; })(i); } 

// WT3DObj.scene.children[305].geometry.vertices[22].z = 41400 //WT3DObj.scene.children[305].geometry.verticesNeedUpdate = true;  
setTimeout(function () { modelBussiness.Drawing = false; }, timeLong) console.log("drawLine"); }); return addModelNames; }

由于篇幅原因，这一课先介绍到这里

后面我将继续讲解用webgl 建立 3D隧道、3D桥梁、webgl实现三维隧道桥梁、three.js实现三维隧道桥梁、桥梁隧道三维应用炫酷效果等等

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