如何用webgl(three.js)搭建一个3D库房,3D仓库3D码头,3D集装箱,车辆定位,叉车定位可视化孪生系统——第十五课

序

　　又是快两个月没写随笔了，长时间不总结项目，不锻炼文笔，一开篇，多少都会有些生疏，不知道如何开篇，如何写下去。有点江郎才尽，黔驴技穷的感觉。

　　写随笔，通常三步走，第一步，搭建框架，先把你要写的内容框架搭建出来；第二步，添砖，在框架基础上，填写各部分内容；第三步，加瓦，再写好的内容上进行修改，润湿。然后文章的质量，就因人而异了。但不管怎么说，得写，得练，得经受的起各路能人志士的批评指教，至于改不改，那也是写文章的人的事了（通常我是认真接受批评指教的）。

　　你看，写道这里，我又不知道再序些啥了，索性就这样吧。

　　闲话少序，切入正题

前言

　　前面的课程有讲解过库房相关的，但都是密集架库房，档案室库房类的（《如何用webgl(three.js)搭建一个3D库房,3D密集架,3D档案室（升级版）》《如何用webgl(three.js)搭建一个3D库房,3D密集架,3D档案室,-第二课》《如何用webgl(three.js)搭建一个3D库房-第一课》）

　　该篇主要讲解堆放箱体的库房，以及码头集装箱类似的库房场地解决方案。

　　可视化孪生系统实现起来主要是数据源、业务系统、展示方案这三大部分。

　　数据源：就是数据的来源，针对该篇文章，是如何对库房，库位的数据进行采集，录入。物联网厂家通常叫做前端采集模块。

　　　　　　该项目，数据源主要通过 rfid+手动录入的方式，项目中库位主要分了室内和室外两大部分，室内通过门口rfid门禁知道箱子的出入，再通过操作员手动录入箱子的位置（再库位上，详细划分了位置编号）；室外部分直接通过操作员手动录入入库出库信息。

　　　　这里还涉及到车辆定位（叉车），采用的是定位卡+基站以及分站的方式。

　　业务系统：针对采集上来的数据，如何进行有效的处理与存储，如何有效符合客户功能需求，以及要综合考虑数据源结构，展示端需求数据结构，系统性能等。这些都是业务系统的主要功能要求。

　　　　　　　业务系统，也是我们程序员常说的后端服务。

　　展示方案：争对客户需求，设计符合客户要求的交互三维可视化方案。

　　该篇我们主要详细讲解展示端方案。

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一、整体效果及功能

1.1、库房外部及周遭场景

通过对园区进行建模，虚拟模拟周边道路环境，实现整体场景展示。

1.2、外部库位集装箱信息，以及车辆信息

鼠标滑动到集装箱，或者车辆上，显示货物，车辆信息。

具体实现滑动显示

ModelBussiness.prototype.mouseInCurrentObj = null;
ModelBussiness.prototype.lastMouseInCurrentObj = null;
//鼠标滑入事件
ModelBussiness.prototype.mouseOverInCallBack = function (_obj, face, objs) {
  console.log(_obj.name);
  var _this = modelBussiness;
  WT3DObj.controls.autoRotate = false;
  
  var color = 0xbfffea;
  modelBussiness.lastMouseInCurrentObj = _obj;
  modelBussiness.mouseInCurrentObj = _obj;
  if (_obj.name.indexOf("dev_car_") >= 0) {

        var _sobj = _obj;
        if (_obj.name.indexOf("OBJCREN") > 0) {
            _sobj = _obj.parent;
        }
        var id = (_sobj.name.split("_Model_")[1]);

        var name = id;
        modelBussiness.mouseInCurrentObj = _sobj;
        _sobj.visible = true;
        WT3DObj.commonFunc.setSkinColorByObj(_sobj, 0x00ffff);
        $("#MarkMessageHelper").remove();
        $("body").append("<div id='MarkMessageHelper' style='position:absolute;left:" + (window.event.pageX) + "px;top:" + (window.event.pageY - 10) + "px;height:2px;width:2px;z-index:1000;'></div>");
        showCarinfo(name,id);
    }

}

//展示货物信息
function showGoodInfo(name, id) {
    //显示结构部分
    var html = ' XXXXX';
    //弹窗
    layer.tips(html, "#MarkMessageHelper", {
        tips: [1, '#003333'],//弹窗类型与颜色
        time: 0,//弹窗自动关闭时长 0表示不自动关闭
        area: ["415px", "230px"],//弹窗大小
        success: function () {//弹窗显示后回调
            setTimeout(function () {
                //数据接口 根据id获取货物详细信息
                webapi.GetAllGoodsInfo(id, function (result) {
                    if (result) {
                        modelBussiness.cacheData = {
                            id: id,
                            result: result
                        };
                        for (var item in result) {//填充弹窗内结构的数据
                            $("#devParamValue3D" + id + "_" + item).html(result[item]);
                            if (item == "photo_urls") {
                                var _html = "";
                                $.each(result[item], function (_pindex, _pobj) {

                                    _html += ' <div style="float:left;cursor:pointer;margin-right:10px;" onclick="modelBussiness.showPics(\'' + _pobj.url + '\',\'' + _pobj.doctype + '\')">' + _pobj.doctype + '</div>';
                                })
                                $("#devParamValue3D" + id + "_photos").html(_html);
                            }
                        }
                    } else {
                        $("#devParamValue3D" + id + "_content").html("<font style='color:red;'>获取数据异常</font>");
                    }
                })
            }, 200);
        }
    });

}

1.3、车辆出入管理

对进入的车辆实时监控，卡口信息实时展示

实现代码如下：

            var carjp1_4_run = WT3DObj.commonFunc.findObject("car_sanka_3");
         
            carjp1_4_run.position.x = -858.739;
            carjp1_4_run.position.z = 19837.371;
 
            new TWEEN.Tween(carjp1_4_run.position).to({
               z: 14344.865
            }, 5000).onComplete(function () {
                new TWEEN.Tween(carjp1_4_run.rotation).to({
                    y: 0,
                }, 1000).onComplete(function () { }).start();
                new TWEEN.Tween(carjp1_4_run.position).to({
                    x: -225.796,
                    z: 13523.366
                }, 1000).onComplete(function () {


                    layer.tips("", "#MarkMessageHelper")
                    layer.msg(`
        车牌：<font color='#00ff00'>粤A17001</font><br/>
        类型：<font color='#00ff00'>内部车辆</font><br/>
        外出：<font color='#00ff00'>2022/10/22 15:36:45</font><br/>
        进入：<font color='#00ff00'>2022/10/22 17:56:12</font><br/>
        照片：<img src='../img/car_01.png' style="width:100px;height:100px;" />
        `)

                    setTimeout(function () {
                        var dz_3_lg = WT3DObj.commonFunc.findObject("dz_gz_1");
                        dz_3_lg.rotation.x = Math.PI / 2;
                        dz_3_lg.rotation.z = -Math.PI;
                        new TWEEN.Tween(dz_3_lg.rotation).to({
                            x: Math.PI
                        }, 2000).onComplete(function () {
                            new TWEEN.Tween(carjp1_4_run.position).to({
                                x: 1197.955,
                                z: 13308.873
                            }, 2000).onComplete(function () {

                            }).start();
                            new TWEEN.Tween(carjp1_4_run.rotation).to({
                                y: 11.617 / 180 * Math.PI,
                            }, 2000).onComplete(function () {
                                new TWEEN.Tween(carjp1_4_run.position).to({
                                    x: 10812.744,
                                    z: 12807.050
                                }, 6000).onComplete(function () {

                                }).start();
                                new TWEEN.Tween(carjp1_4_run.rotation).to({
                                    y: 0,
                                }, 2000).onComplete(function () {

                                }).start();

                            }).start();
                            setTimeout(function () {
                                new TWEEN.Tween(dz_3_lg.rotation).to({
                                    x: - Math.PI / 2
                                }, 2000).onComplete(function () {
                                    $("#doAnimationBtn").show();
                                }).start();
                            }, 2000);
                        }).start();
                    }, 2000);

                }).start();
            }).start();

1.4、内部仓库场景

双击进入内部室内仓库

绑定双击事件，实现跳转即可

实现展开楼层如下：

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(["ckbuild_486"]);
    //隐藏大楼
    WT3DObj.commonFunc.setSkinColorByname("ckbuild_486", 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("ckbuild_486");
        if (typeof (_obj.oldPositionY) == 'undefined') {
            _obj.oldPositionY = _obj.position.y
        }
        _obj.position.y = 1000000;
        _obj.visible = false;

        WT3DObj.commonFunc.changeCameraPosition({ x: -1181.6606035933219, y: 7695.800119393643, z: 17124.216668774727 },{ x: 7526.409787213892, y: 2616.2148116624617, z: 7792.131296514065 }, 500,
            function () { });

        var names = ["zgx_102_f1", "zgx_102_f2", "zgx_102_f3", "zgx_102_f4"];
        var floors = WT3DObj.commonFunc.findObjectsByNames(names);
        modelBussiness.openFloors(floors, function () {
            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("_f")[1]);
            height = (floor - 1) * 1500 + 50;
            new TWEEN.Tween(_obj.position).to({
                y: height
            }, 500).start();
        });
        setTimeout(function () {

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

}

1.5、分区块信息

建模时，已经固定分区，所以直接将分区标题固定即可。

实现方法

ModelBussiness.prototype.showAreaGoods = function (code, callBack) {
    var objs = [];
    var hideobjs = [];
    $.each(WT3DObj.scene.children, function (_index, _obj) {
        //遍历所有模型，找到对应的模型展示。非对应货物 隐藏
        if (_obj.name.indexOf("location2_") == 0) {
            _obj.visible = true;
            if (_obj.oldPositionY || _obj.oldPositionY == 0) {
                _obj.position.y = _obj.oldPositionY;
            }
        }
        if (_obj.name.indexOf("g_") == 0) {
            _obj.visible = true;
            if (code == "ALL") {
                _obj.visible = true;
            } else {
                if (_obj.name.indexOf("_Area_" + code) > 0) {
                    _obj.visible = true;
                } else {
                    _obj.visible = false;
                }
            }
        }
    });
  
}

1.6、单独库位展示

单独库位展示，采用iframe弹框方式，有效节约资源，降低逻辑复杂度。

//展示货物信息
function showGoodInfo(name, id) {
    //显示结构部分
    var html = CONTENT;
    //弹窗
    layer.tips(html, "#MarkMessageHelper", {
        tips: [1, '#003333'],//弹窗类型与颜色
        time: 0,//弹窗自动关闭时长 0表示不自动关闭
        area: ["415px", "230px"],//弹窗大小
        success: function () {//弹窗显示后回调
  
        }
    });

}

1.7、货物搜索定位

实现货物快速定位与检索

//搜索动作
ModelBussiness.prototype.searchActionSate = false;
ModelBussiness.prototype.searchAddObjNames = [];
ModelBussiness.prototype.searchAction = function (result) {
    layer.load();
    var _this = this;
    WT3DObj.commonFunc.changeCameraPosition({ x: 1138.6583366079776, y: 7190.772604284317, z: 9690.731322273507 }, { x: 5051.345919026784, y: 678.7143248996384, z: 2255.8201639552867 }, 500,
         function () {
             modelBussiness.cancelSearchAction(function () {
                 var type="";
                 if (window.location.href.indexOf("index.html") >= 0) {
                     type = "jzx";
                 }
                 _this.searchActionSate = true;
                    var resultobj={};
                    $.each(result, function (_index, _obj) {
                        //areaId: "F5"
                        //id: "cf792a67-bfed-488b-8570-915a73341777"
                        //name: "20006010-2-2"
                        resultobj["g_" + _obj.id] = _obj;
                     
                    });

                    var models = [];
                    var objs = [];
                    modelBussiness.searchAddObjNames = [];
                    $.each(WT3DObj.scene.children, function (_index, _obj) {
                        //areaId: "F5"
                        //id: "cf792a67-bfed-488b-8570-915a73341777"
                        //name: "20006010-2-2"
                        if (!_obj.oldPositionY && _obj.oldPositionY != 0) {
                            _obj.oldPositionY = _obj.position.y;
                        }

                        if (_obj.name.indexOf("location2_") == 0) {
                            _obj.visible = false;
                            _obj.position.y = 1000000;
                        }
                        if (_obj.name.indexOf("g_") == 0) {
                            objs.push(_obj);
                            var cobj = resultobj[_obj.name.split("_Area_")[0]];
                            if (cobj) {
                                modelBussiness.searchAddObjNames.push("gSearch_" + cobj.id + "_name_" + cobj.name);
                               var cacheobj= _this.cacheGoodsResult["c_" + cobj.id];
                               models.push(createGoodCubeModels("gSearch_" + cobj.id + "_name_" + cobj.name, cobj.name, _obj.position, { x: _obj.scale.x * 100, y: _obj.scale.y * 100, z: _obj.scale.z * 100 }, type, cacheobj ? cacheobj.color : 0));
                               _obj.visible = false;
                               _obj.position.y = 1000000;
                            } 
                        }
                    });


                    if (models && models.length > 0) {

                        WT3DObj.commonFunc.loadModelsByJsons(models, { x: 0, y: 0, z: 0 }, { x: 0, y: 0, z: 0 }, true, function () {
                            WT3DObj.commonFunc.changeObjsOpacity(objs, 1, 0.1, 500, function () {
                                layer.closeAll();
                            });
                        });
                    } else {
                        WT3DObj.commonFunc.changeObjsOpacity(objs, 1, 0.1, 500, function () {
                            layer.closeAll();
                        });
                    }
               
                 });
         });
}

View Code

1.8、叉车定位

根据定位信息，实现叉车位置实时跟踪

这里采用的摄像头定位卡加上基站的方案。

 if (modelBussiness.searchActionSate) {
    } else {
    webapi.GetAllGoodsList(1, function (result) {

        if (_this.oldGoodsData && _this.oldGoodsData.length > 0) {
            $.each(_this.oldGoodsData, function (_index, _obj) {
                WT3DObj.destoryObj(_obj);
            });
            _this.oldGoodsData = [];
           
        }
        for (var i = WT3DObj.scene.children.length - 1; i >= 0; i--) {
            var _obj = WT3DObj.scene.children[i];
            if (_obj && _obj.name && _obj.name.indexOf("g_") == 0 && _obj.name.indexOf("_Area_") > 0) {
                WT3DObj.scene.remove(_obj);
            }
        }


        var models = [];

        var extra_x = 0;
        var extra_y = 0;
        var type = "";
            extra_x = config.basePoint.room.x;
            extra_y = config.basePoint.room.y;
            if (result && result.length > 0) {
                $("#div_zk").html(result.length);

                //循环找出所有颜色 并且创建对象
                var _colors = [];
                var _colorsobjName = [];
                $.each(result, function (_index, _obj) {
                    _this.cacheGoodsResult["c_" + _obj.id] = _obj;
                    if (_colors.indexOf(_obj.color) < 0) {
                        models.push(createGoodCubeModels("g_" + _obj.id + "_Area_" + _obj.area, _obj.name, { x: _obj.position.x + extra_x, y: _obj.position.z, z: _obj.position.y + extra_y }, { x: _obj.size.x, y: _obj.size.z, z: _obj.size.y }, type, _obj.color));
                        _colorsobjName.push("g_" + _obj.id + "_Area_" + _obj.area);
                        _colors.push(_obj.color);
                    }
                })
                _this.oldGoodsData = _colorsobjName;
                WT3DObj.commonFunc.loadModelsByJsons(models, { x: 0, y: 0, z: 0 }, { x: 0, y: 0, z: 0 }, true, function () {
                    var goods = WT3DObj.commonFunc.findObjectsByNames(_colorsobjName);
                    var goodobjs = {}
                    $.each(goods, function (_index, _obj) {
                        goodobjs[_obj.name] = _obj;
                    });
                    $.each(result, function (_index, _obj) {
                        var goodname = "g_" + _obj.id + "_Area_" + _obj.area;
                        
                        if (_colorsobjName.indexOf(goodname) < 0) {
                            var baseObjName = _colorsobjName[_colors.indexOf(_obj.color)];
                            var good1 = goodobjs[baseObjName];
                            if (good1) {
                                var newobj = good1.clone();
                                newobj.areaId = _obj.areaId;

                                newobj.name = goodname;
                                newobj.position.x = _obj.position.x + extra_x;
                                newobj.position.y = _obj.position.z;
                                newobj.position.z = _obj.position.y + extra_y;
                                if (modelBussiness.AreaLocationCache["location2_" + _obj.areaId]) {
                                    var newscalez=(newobj.position.y + _obj.size.z) / 10+0.1;
                                    if(newscalez>modelBussiness.AreaLocationCache["location2_" + _obj.areaId].scale.z){
                                        modelBussiness.AreaLocationCache["location2_" + _obj.areaId].scale.z=newscalez;
                                    }
                                }
                                newobj.scale.x = _obj.size.x / 100;
                                newobj.scale.y = _obj.size.z / 100;
                                newobj.scale.z = _obj.size.y / 100;
                                WT3DObj.scene.add(newobj);
                            }
                        } else {
                            var baseObjName = _colorsobjName[_colors.indexOf(_obj.color)];
                            var good1 = goodobjs[baseObjName];
                            good1.areaId = _obj.areaId;
                            if (modelBussiness.AreaLocationCache["location2_" + _obj.areaId]) {
                                var newscalez = (_obj.position.y + _obj.size.z) / 100 + 0.1;
                                if (newscalez > modelBussiness.AreaLocationCache["location2_" + _obj.areaId].scale.z) {
                                    modelBussiness.AreaLocationCache["location2_" + _obj.areaId].scale.z = newscalez;
                                }
                            }
                        }
                    })
                });
            }

    });
    }
    setTimeout(function () {
        modelBussiness.updateGoodsModel();
    }, config.updateGoodsTime * 1000)

View Code

二、实现逻辑

2.1、建模

　　2.1.1、创建园区整体模型

　　　　2.1.1.1、创建周边环境

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View Code

这里的道路直接用亮线画出道路框架即可，然后通过流动的光线模拟车流，这在前面的文章中有详细讲解。

2.1.1.2、创建大楼

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View Code

2.1.1.3、创建楼层

用于分解楼层展示

function createAreaModels(name,title, color,_points) {
    var points = [];
    var maxx = null;
    var maxy = null;
    var minx =null;
    var miny = null;
    var extra_x = 0;
    var extra_y = 0;
    if (window.location.href.indexOf("index.html") >= 0) {
        extra_x = config.basePoint.index.x;
        extra_y = config.basePoint.index.y;
    } else {
        extra_x = config.basePoint.room.x;
        extra_y = config.basePoint.room.y;
    }
    $.each(_points, function (_index, _obj) {
        if (_obj.x > maxx || maxx == null) {
            maxx = _obj.x;
        }
        if (_obj.y > maxy || maxy == null){
            maxy = _obj.y;
        }

        if (_obj.x < minx || minx == null) {
            minx = _obj.x;
        }
        if (_obj.y < miny || miny == null) {
            miny = _obj.y;
        }
        points.push({
            "x": _obj.x + extra_x,
            "y": _obj.y + extra_y,
            "type": "nomal"
        });
    });
    var titleimg = "";var modeljson = [{ "show": true, "uuid": "", "name": "area_" + name, "objType": "ExtrudeGeometry", "position": { "x": 0, "y": 0, "z": 0 }, "style": { "skinColor": 16711680, "skin": { "skin_up": { "skinColor": color, "materialType": "Phong", "side": 1, "opacity": 0.5 }, "skin_down": { "skinColor": color, "side": 1, "opacity": 1 }, "skin_side": { "skinColor": color, "opacity": 1 } } }, "scale": { "x": 1, "y": 1, "z": 1 }, "shapeParm": { "points": points, "holes": [] }, "extrudeSettings": { "amount": 120, "curveSegments": 1, "steps": 1, "bevelEnabled": false, "bevelThickness": 1, "bevelSize": 1, "bevelSegments": 1, "extrudePathPoints": [] }, "showSortNub": 40, "customType1": "", "customType2": "", "animation": null, "dbclickEvents": null, "rotation": [{ "direction": "x", "degree": 1.5707963267948966 }, { "direction": "y", "degree": 0 }, { "direction": "z", "degree": 0 }], "BindDevId": null, "BindDevName": null, "devInfo": null, "BindMeteId": "10001", "BindMeteName": "" }
return modeljson;
}

　　2.1.2、创建室内库房模型

这里的模型通过代码实现，篇幅过长，不便展示。

　　2.1.3、创建箱子模型

 { "show": true, "uuid": "", "name": name, "objType": "ExtrudeGeometry", "position": { "x": position.x, "y": position.y, "z": position.z }, "style": { "skinColor": 16711680, "skin": { "skin_up": { "skinColor": color1, "side": 1, "opacity": 1, "imgurl": imgurl1, "repeatx": true, "width": 0.01, "repeaty": true, "height": 0.01 }, "skin_down": { "skinColor": 16777215, "side": 1, "opacity": 1 }, "skin_side": { "skinColor": color2, "opacity": 1, "imgurl": imgurl2, "repeatx": true, "width": 0.01, "repeaty": true, "height": 0.01 } } }, "scale": { "x": size.x / 100, "y": size.y / 100, "z": size.z / 100 }, "shapeParm": { "points": [{ "x": 0, "y": 0, "type": "nomal" }, { "x": 0, "y": 100, "type": "nomal" }, { "x": 100, "y": 100, "type": "nomal" }, { "x": 100, "y": 0, "type": "nomal" }], "holes": [] }, "extrudeSettings": { "amount": 100, "curveSegments": 1, "steps": 1, "bevelEnabled": false, "bevelThickness": 1, "bevelSize": 1, "bevelSegments": 1, "extrudePathPoints": [] }, "showSortNub": 100, "customType1": "", "customType2": "", "animation": null, "dbclickEvents": null, "rotation": [{ "direction": "x", "degree": 0 }, { "direction": "y", "degree": 0 }, { "direction": "z", "degree": 0 }], "BindDevId": null, "BindDevName": null, "devInfo": null, "BindMeteId": null, "BindMeteName": null }

　　2.1.4、创建集装箱模型

[{"show":true,"uuid":"","name":"cube2_6","objType":"cube2","length":400,"width":200,"height":200,"x":0,"y":200,"z":0,"style":{"skinColor":16777215,"skin":{"skin_up":{"skinColor":2531071,"side":1,"opacity":1,"imgurl":"../img/3dImg/cbjysfk2.jpg"},"skin_down":{"skinColor":2531071,"side":1,"opacity":1,"imgurl":"../img/3dImg/cbjysfk2.jpg"},"skin_fore":{"skinColor":2531071,"side":1,"opacity":1,"imgurl":"../img/3dImg/cbjysfk2.jpg"},"skin_behind":{"skinColor":2531071,"side":1,"opacity":1,"imgurl":"../img/3dImg/cbjysfk2.jpg"},"skin_left":{"skinColor":2531071,"side":1,"opacity":1,"imgurl":"../img/3dImg/cbjysfk2.jpg"},"skin_right":{"skinColor":2531071,"side":1,"opacity":1,"imgurl":"../img/3dImg/cbjysfk2.jpg"}}},"showSortNub":6,"customType1":"","customType2":"","animation":null,"dbclickEvents":null,"rotation":[{"direction":"x","degree":0},{"direction":"y","degree":0},{"direction":"z","degree":0}],"thick":null,"scale":{"x":1,"y":1,"z":1},"BindDevId":null,"BindDevName":null,"devInfo":null,"BindMeteId":null,"BindMeteName":null}]

　　2.1.5、车辆模型

 { "name": _name, "objType": "objmodel", "position": _position, "scale": _scale, "visible": true, "rotation": [{ "direction": "x", "degree": _rotation.x }, { "direction": "y", "degree": _rotation.y-Math.PI/2 }, { "direction": "z", "degree": _rotation.z }], "filePath": "../js/models/car/", "mtlFileName": "car03.mtl", "objFileName": "car03.obj", "mtlIsPublic": false, "showSortNub": 7, "show": true, "customType1": "", "customType2": "", "animation": null, "dbclickEvents": null, "BindDevId": null, "BindDevName": null, "devInfo": null, "BindMeteId": null, "BindMeteName": null }

2.2、数据载入

　　通过数据生成模型，画出库位，载入车辆等

 
/* type：
        1://集装箱
       2://箱子
        3://筒状
    color://颜色
   id :设备id 唯一    必填
   position :设备位置  必填 格式 { x: 0, y: 0, z: 0} 这里矢量单位
   size:尺寸 默认值 { x: 1, y: 1, z: 1 };
*/
function createModelJsonByType(type,color, id, position, size) {
    if (!scale) {
        scale = { x: 1, y: 1, z: 1 };
    }
    var modeljson = null;
    switch (type) {
        case 1:
            {

            modeljson = {
             ....
            };
            }
            break;
        case 2:
            modeljson = {
              ....。 };
            break;
        case 3:
            modeljson = {
               ....       };
            break;
       

             
    }

    modeljson.name = "dev_T_" + type + "_ID_" + id;
    if (config && config.name) {
        modeljson.name = config.name;
    }
    if (modeljson.children) {
        $.each(modeljson.children, function (_i, _o) {
            _o.name = "dev_T_" + type + "_ID_" + id + "OBJCREN" + _i;
        });
    }
    if (modeljson.position) {
        modeljson.position.x = position.x;
        if (position.y || position.y == 0) {
            modeljson.position.y = position.y;
        }
        modeljson.position.z = position.z;
    }

    return modeljson;
}

/*
创建车 
*/
function createCarModel(_name, _position, _rotation, _scale, carType) {


    var model = ...model;
    // 1.集卡（带集装箱的） 2.集卡（空车） 3.散卡（带箱的小货车） 4.正面吊 5.小铲车 6 板车
    if (carType) {
        switch (carType) {
            case 1: {
                model.filePath = "../js/models/jika/";
                model.mtlFileName = "jika.mtl";
                model.objFileName = "jika.obj";
                model.scale = {
                    x: 4.200,
                    y: 4.200,
                    z: 4.200
                }
            }
                break;
            case 2: {
                model.filePath = "../js/models/jika_nocube/";
                model.mtlFileName = "jika_nocube.mtl";
                model.objFileName = "jika_nocube.obj";
                model.scale = {
                    x: 4.200,
                    y: 4.200,
                    z: 4.200
                }
            }
                break;
            case 3: {
                model.filePath = "../js/models/sanka/";
                model.mtlFileName = "sanka.mtl";
                model.objFileName = "sanka.obj";
                model.scale = {
                    x: 0.080,
                    y: 0.080,
                    z: 0.080
                }
                model.rotation[1].degree -= Math.PI / 2;
            }
                break;
            case 4: {
                model.filePath = "../js/models/diaoche/";
                model.mtlFileName = "dc.mtl";
                model.objFileName = "dc.obj";
                model.scale = {
                    x: 1.150,
                    y: 1.150,
                    z: 1.150
                }
            }
                break;
            case 5: {
                model.filePath = "../js/models/canche/";
                model.mtlFileName = "canche.mtl";
                model.objFileName = "canche.obj";
                model.scale = {
                    x: 0.1,
                    y: 0.1,
                    z: 0.1
                }
            }
                break;
            case 6: {
                model.filePath = "../js/models/banche/";
                model.mtlFileName = "banche.mtl";
                model.objFileName = "banche.obj";
                model.scale = {
                    x: 4.200,
                    y: 4.200,
                    z: 4.200
                }
            }
                break;
        }
    }
    //model.scale.x *= 0.8;
    //model.scale.y *= 0.8;
    //model.scale.z *= 0.8;
    return model;

}

2.3、自动生成货物模型

　生成模型注意对于批量模型消耗浏览器性能，掉帧问题。这里后面我会用专门的篇幅讲解，如何优化加载大量货物且不掉帧的解决方案。

  //获取区域库位划分数据
        webapi.GetAllArea(1, function (result) {
            var models = [];
            if (result && result.length > 0) {
                $("#room_shelfNub").html(result.length);
                $.each(result, function (_index, _obj) {
                    var _color = _obj.color;
                    if (_color == "") {
                        _color = Math.random() * 16777215 + "";
                    } else {
                        _color = _color.replace("#", "0x")
                    }
                    _color = parseInt(_color)
                    //生成区域画线
                    var model = createAreaModels(_obj.code, _obj.name, _color, _obj.AreaPoints);
                    models = models.concat(model);
                })
            }
            console.log(models);
            
            WT3DObj.commonFunc.loadModelsByJsons(models, { x: 0, y: 0, z: 0 }, { x: 0, y: 0, z: 0 }, true, function () {

            });

        })

2.4、主要逻辑

　　具体实现逻辑主要分为五个步骤

　　1、创建模型

　　2、校准坐标系，将模型的坐标系与数据坐标系校准对应。

　　3、根据配置载入配置模型，如摄像头等

　　4、生成库位、货物。根据动态数据，生成库位、车辆、货物等模型

　　5、业务逻辑。实现滑动，双击，搜索等常规业务。

由于篇幅原因，本节先讲解到这。

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