技術文章 » webgl(three.js)實現室內三維定位,3D定位,3D樓宇bim、實時定位三維視覺化解決方案——第十四課（定位升級版）

webgl(three.js)實現室內三維定位,3D定位,3D樓宇bim、實時定位三維視覺化解決方案——第十四課（定位升級版）

2022-09-06 15:03:12

序：

　　還是要抽出時間看書的，迷上了豆豆的作品，最近在看《天幕紅塵》，書中主人公的人生價值觀以及修為都是讓我驚為嘆止。很想成為那樣的人，但是再看看自己每天干的事，與時間的支配情況，真是十分的汗顏。除了為了生活所必須的工作時間外，還有大部分零散的時間不是給了短視訊，就是給了短訊文章，簡訊媒介，不說是毫無意義吧，但也著實是浮躁虛誇了。

　　用豆豆作品裡的話術，"透視社會依次有三個層面：技術、制度和文化。小到一個人，大到一個國家一個民族，任何一種命運歸根到底都是那種文化屬性的產物"。 我終究是幹技術的，還是無法洞察其中奧義，只是熟悉了幾門餬口的技巧而已，究竟其本質便無所得之了，或者說依然沒找到那安身立命的意義。長路漫漫，且尋著吧。人生也許也像某個技術門類，需要不斷的回顧，記錄，總結。才能真正發現一些實質性的東西。究竟涅槃，如來？

　　本想談技術，話題終究是扯遠了，但總歸要扯點啥吧，練練文筆也好，述述心態也罷，反正也少有人看寫在前面的廢話，這任算是，無傷技術之大雅，無關文章之緊要了。

　　還是閒話少序，切入正題吧。

前言：

　　前面的課程介紹過定位相關的技術解決方案，《webgl(three.js)實現室內定位,樓宇bim、實時定位三維視覺化解決方案——第五課》 ，從硬體到視覺化，都已經比較全面的講述了一遍,這邊文章相當於那篇檔案的一個改進版本，主要是在視覺化呈現方面，根據具體的實施專案，在視覺化方面做一個比較全面的技術剖析。

關於硬體採集端技術，因為精度要求不高，任然採用的是：低功耗有源RFID+讀卡器基地器+智慧分析。

關於室內定位市場前景，那篇文章也做了一些分析，這裡不做贅述。

 一、整體效果

還是先看整體效果，再探具體實現技術的究竟

 上圖展示整體園區以及周邊的科技感效果。

  上圖展示近距離整體園區建設風貌。

二、功能展示

2.1、展開樓層

 

樓層展開實現比較簡單，首先再建模的時候講究分離模型，不能講樓層內部，樓層外牆一股腦做成一個模型，需要講模型分解，分開建模，

實現樓層展開就比較方便了，只需要控制外牆模型隱藏，然後控制每個樓層的的高度位置就可以。

 實現程式碼如下：

ModelBussiness.prototype.tempNameList = [];
ModelBussiness.prototype.tempDataList = [];
ModelBussiness.prototype.videoDataCache = {};
ModelBussiness.prototype.showFloorState = "close";
//顯示樓層內部情況
ModelBussiness.prototype.showBuildFloors = function (buildnub, callBack) {
    var _this = this
    _this.showFloorState = "open";
    var builds = WT3DObj.commonFunc.findObjectsByNames(["wjwb1_232", "wjwbuilds_55"]);
    //隱藏大樓
    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();
            }
        });
    });

}
//隱藏樓層內部情況
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();
        }
    })

}
//顯示樓層
ModelBussiness.prototype.openFloors = function (floors, callBack) {
    //顯示樓層
    $.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) {
        //展開樓層
        _obj.floorPosition = _obj.position.y;
        var floor = parseInt(_obj.name.split("_")[1]);
        height = (floor - 1) * 300 +50;
        new Tn(_obj.position).to({//補充間隔動畫
            y: height
        }, 500).start();
        });
        setTimeout(function () {

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

}

 2.2、繪製定位路徑

 

 繪製定位路徑，相比樓層展開要複雜一些，這裡要用到定位裝置與虛擬模型之間的關聯與繫結，然後標記跟著模型運動

主要分為以下幾步：

　　第一、建模

　　第二、建立虛擬模型，繫結裝置id

　　第三、資料id轉換為模型id

　　第四、定址，找到對應的虛擬模型列表、並且獲取各自位置

　　第五、根據位置畫線、移動標籤

三、具體實現

3.1、建立周遭環境模型，特效模型等

 建模程式碼如下：

[{"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、建立外牆模型

 單獨建立需要裂解的大樓外牆模型，具體如下：

[{"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、其它細節樓宇模型

 作為輔助美觀模型，單獨建立模型如下：

[{"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、樓層模型

各樓層模型單獨建立，便於控制與展示

[{"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}]

 多角度觀察一下樓層模型：

 單元測試樓宇模型裂解效果

四、定位詳解

 本想放到第三章一起講解，但這部分實現比較重要，所以單獨一章講解

 如上圖，粉色的點位表示房間門內的輔助點，亮綠色的點位表示裝置所對應的門外輔助點

我們這裡只需要繫結門外的輔助點到對應的裝置就可以

當再某處停留事件過長，我們通常判斷已經進入房間，直接講門外門內兩個點連結，即可。

 4.1、儲存虛擬點位

//使用二元樹儲存法，將輔助點與裝置id進行繫結。
 {
        "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],//二元樹儲存資料
        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 } }]
    }
//儲存輔助點模型位置到陣列中，方便快速查詢。
[{ "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、具體實現畫線定位

 實現畫線定位是利用裝置id找到對應輔助點，然後將輔助點連結起來的方式

定位標籤移動，使用補間動畫移動效果即可。

//顯示路徑
function drawLineFunc(floor, start, end, timeLong, startOut, endIn) {
    //drawLineDataList.push({
    //    floor: 樓層,
    //    start: 開始裝置點id,
    //    end: 結束裝置點id,
    //    timeLong: 移動時長,
    //    startOut: 是否是從房間裡出來,
    //    endIn: 是否進入房間
    //});
  
    WT3DObj.commonFunc.changeCameraPosition(ConfigData["f" + floor].cp, ConfigData["f" + floor].ct, 300,
        function () { });
    //生成路徑節點陣列
    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"
                    })
                }
            });
        }
    }；
　　//建立節點模型
    var modelsNames = modelBussiness.createRoadLine(pathpoints, new Date().getTime(), timeLong);
    CModelNames = CModelNames.concat(modelsNames);
}

畫線與移動具體實現如下：

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"
    //});
　　//建立移動標籤模型程式碼
    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");
    }
//建立線模型程式碼
    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 = [];//單段長度陣列
    var allLength = 0;//總長度
    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);
    }
　　//載入模型
    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) {//建立閉包
　　　　　　　　
//獲取小節點之間的運動時長
var stepTime = pointlength[_index] / allLength * timeLong; 
setTimeout(function () {
　　//建立路徑運動延遲等待 


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; }

 

由於篇幅原因，這一課先介紹到這裡 

後面我將繼續講解用webgl 建立 3D隧道、3D橋樑、webgl實現三維隧道橋樑、three.js實現三維隧道橋樑、橋樑隧道三維應用炫酷效果等等

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