traffic-laser/src/sdk/laser/core/enter.js

import parameter from "./parameter";
import mitt from "mitt";
import {
    CoordType
}
from "../../types";
import {
    Loading
}
from "@kankan/components/index";
import revision from "./REVISION";
import {
    ui18n
}
from "@/lang";
import libTransform from "coordtransform";
//交通版laser  主要适用设备：MatePad Pro 11英寸

const pointMeasureColor = "#3290ff"

const CloneJson = function (data) {
    var str = JSON.stringify(data);
    return JSON.parse(str);
};

var enter = ({
    dom,
    mapDom,
    number,
    //datasetId, //初始数据集
    webSite, //废弃，改为用dataset.webBin
    isLocal = false,
    basePath,
    isDebug = false,
    mapCompany, // 地图版本  'default' | 'google' default就跟现在一样
    axios,
    version, //'V3''V4' 废弃，改为从getDataset获取
    staticPrefix,
    cropArgs,
    getFileUrl,
}) => {
    let isScreenshoting = false;
    let lastSiteModelData;
    let page; //所在页面
    const sceneBus = mitt();

    Potree.settings.isOfficial = true; //标记为正式、非测试版本
    Potree.settings.isDebug = isDebug;
    //Potree.settings.originDatasetId = datasetId;

    /*if (isLocal) {
        //本地配置
        Potree.settings.isLocal = isLocal;
        for (let i in Potree.settings.urls) {
            Potree.settings.urls[i] = basePath; //全部替换
        }
    }
    webSite && (Potree.settings.webSite = webSite);
    //axios && (Potree.fileServer = axios); //暂时不用，比如vision那里

     if (staticPrefix) {
        // "/dev/SS-t-4pMXagRDjk"
        Potree.settings.isLocal = true;
        Potree.settings.urls.prefix1 = Potree.settings.urls.prefix3 = staticPrefix;
        Potree.settings.webSite = "wwwroot";
    } */


    Potree.getFileUrl = getFileUrl //转化为另一种得到url的方法


    Potree.start(dom, mapDom, number);


    parameter.dom = dom;
    parameter.number = number;
    parameter.viewer = viewer;
    parameter.sceneBus = sceneBus;
    //Potree.settings.rotAroundPoint = false; //试验
    viewer.fixPoints = []//固定点

    sceneBus.on("visible", (v) => {
        viewer.visible = v;

        /* if(v){
            viewer.dispatchEvent('content_changed') //避免白屏
        } */
        //console.log('sceneBus visible', v)
    });

    viewer.addEventListener("allLoaded", (e) => {
        //全部加载完，除了地图
        console.log('emit allLoad')
        sceneBus.emit("allLoaded");
    });
    viewer.addEventListener("webglError", (e) => {
        console.error("viewer webglError: " + e);
        sceneBus.emit("webglError", {
            msg: e.msg
        });
    });

      
    viewer.addEventListener("viewChanged", (e) => { 
         sceneBus.emit("viewChange", e.name) 
    });
 

    let cameraChange = (e) => {
        var camera = e.viewport.camera;
        var pos = camera.position;
         
        
        if (e.viewport.name == "MainView") { 
            let meterPerPixel = viewer.mainViewport.camera.type == 'OrthographicCamera' ? 1 / viewer.mainViewport.camera.zoom : null//原本我设定的每像素代表1米， 然后再除以zoom
            //console.log('meterPerPixel', meterPerPixel)  
            sceneBus.emit("posChange", {
                x: pos.x,
                y: pos.y,
                z: pos.z,
                rotate: camera.rotation,
                meterPerPixel,
            });
        }
        
        viewer.fixPoints.forEach(point=>{
            point.pos2d = Potree.Utils.getPos2d(point, e.viewport, viewer.renderArea )
        })
        
        
        
    };
    viewer.addEventListener("camera_changed", cameraChange);
    viewer.addEventListener("shelterComputed", () => {
        cameraChange({
            viewport: viewer.mainViewport
        });
    });



    {
        Potree.loadingByTex = false;
        let delayShow = 400;
        let timer;
        viewer.addEventListener("loading", (e) => {
            //加载的等待页面
            if (e.show) {
                if (!isScreenshoting) {
                    //截图时不显示
                    Potree.loadingByTex = true;
                    timer && clearTimeout(timer);
                    timer = setTimeout(() => {
                            if (Potree.loadingByTex) {
                                Loading.show();
                            }
                        }, delayShow);
                }
            } else {
                Potree.loadingByTex = false;
                timer && clearTimeout(timer);
                Loading.hide();
            }
        });
    }

    let info;
    const units = {
        1: "metric",
        2: "imperial"
    };
    let getMeasureType = function (type, unit) {
        switch (type) {


        case 'BASE_LINE':
            info = {
                measureType: "Hor LINE with Text", //带有文字label的线
                labelText : '基准线',
                isBaseLine : true,      //暂时只有基准线是这种measureType
            };
            break;

        case "LINE":
            info = {
                measureType: "Distance"
            };
            break;
        case "SERIES":
            info = {
                measureType: "MulDistance"
            };
            break;
        case "AREA":
            info = {
                measureType: "Area"
            };
            break;
        case "L_LINE":
            info = {
                measureType: "Hor Distance"
            };
            break;
        case "L_SERIES":
            info = {
                measureType: "Hor MulDistance"
            };
            break;
        case "L_AREA":
            info = {
                measureType: "Hor Area"
            };
            break;
        case "L_RECTANGLE":
            info = {
                measureType: "Hor Rect Area"
            };
            break;
        case "V_LINE":
            info = {
                measureType: "Ver Distance"
            };
            break;
        case "V_SERIES":
            info = {
                measureType: "Ver MulDistance"
            };
            break;
        case "V_AREA":
            info = {
                measureType: "Ver Area"
            };
            break;
        case "V_RECTANGLE":
            info = {
                measureType: "Ver Rect Area"
            };
            break;
        default:
            console.error("无此 measure type", type);
        }
        info.unit = units[unit];
        return info;
    };

    let getMeasureFunction = function (measure, bus, isShape) {
        measure.addEventListener("marker_dropped", (e) => {
            //拖拽结束后发送changeCallBack
            if (measure.parent) {
                //未被删除
                isShape ? bus.emit("graphChange", {path:measure.points, center:measure.getCenter()}) : bus.emit("update");
                if(measure.isBaseLine){
                    viewer.dispatchEvent('baseLineChanged')
                }
            }
        });
        /* measure.addEventListener("highlight", (e) => {
            bus.emit("highlight", e.state);
        }); */

        measure.addEventListener("selected", (e) => {
            bus.emit(isShape ? "selectGraph":"selected", e.state) 
        });


        return {
            quit: () => {
                Potree.Log("quit结束且删除: " + measure.id, {
                    font: {
                        color: "#00c7b2"
                    },
                });
                viewer.dispatchEvent({
                    type: "cancel_insertions",
                    remove: true,
                    measure,
                });
            }, //触发结束。退出测量模式，清除之前操作
            clear: () => {
                //删除
                Potree.Log("clear删除: " + measure.id, {
                    font: {
                        color: "#00c7b2"
                    }
                });

                viewer.dispatchEvent({
                    type: "cancel_insertions",
                    remove: true,
                    measure,
                });
                viewer.scene.removeMeasurement(measure);
                if(measure.isBaseLine){
                    viewer.dispatchEvent('baseLineRemoved')
                }
            },
            end: () => {
                //完成 相当于右键
                measure.dispatchEvent({
                    type: "finish",
                    measure
                });
            },
            getPoints: () => {
                return measure.points;
            },
            getDatasetLocations: () => {
                return measure.dataset_points;
            },
            getDatasets: () => {
                return [1]//measure.points_datasets;
            },
            getDatasetId: () => {
                return 1//measure.datasetId;
            },

            getArea: () => {
                return measure.area; //{value:area, string:..}
            },
            getDistance: () => {
                if (measure.points.length < 2)
                    return null;

                var value = measure.getTotalDistance(); //measure.points[0].distanceTo(measure.points[1])

                return {
                    value, //米
                    string: viewer.unitConvert.convert(
                        value,
                        "distance",
                        void 0,
                        measure.unitSystem,
                        0.1,
                        true),
                };
            },
            changeUnit: (unit) => {
                //公制|英制 , 1 | 2 单位
                measure.setUnitSystem(units[unit]);
            },
            toDataURL: (width, height) => {
                //截图
                isScreenshoting = true;
                
                var {
                    getImagePromise,
                    finishPromise
                } = viewer.startScreenshot({
                        type: "measure",
                        measurement: measure,
                        hideMarkers: true,
                        ifGetPose: true,
                    },
                        width,
                        height);
                finishPromise.done(() => {
                    isScreenshoting = false;
                });
                return finishPromise; //getImagePromise.done时是可以getPose的， finishPromise.done时才开始截下一张图
            },
            //手动开启或关闭:
            show: () => {
                Potree.Utils.updateVisible(measure, "forceByUser", true);
                viewer.dispatchEvent('content_changed')
            },
            hide: () => {
                Potree.Utils.updateVisible(measure, "forceByUser", false);
                viewer.dispatchEvent('content_changed')
            },
            /* highlight: (isHight) => {
                measure.setSelected(isHight, "byList");
            }, */
            selected: (state, dontMoveCamera ) => {
                //measure.setSelected(state, "byList");
                if(state){
                    measure.focus({dontMoveCamera})
                }else{
                    measure.dispatchEvent('cancelSelect')
                }
            },

        };
    };
    
    
    
    
    let getMeasurePointsInfo = (fixPoint, onlyMoveBasePoint)=>{
        let baseLine = viewer.scene.measurements.find(e=>e.isBaseLine && e.points.length == 2) 
        if(!baseLine){
            return console.error('创建失败，因基准线不存在')
        }
        if(!fixPoint.basePoint){
            return console.log('no basePoint')
        }
        
        let fixPoint2d = new THREE.Vector2().copy(fixPoint)
        let baselineP12d = new THREE.Vector2().copy(baseLine.points[0])
        let baselineP22d = new THREE.Vector2().copy(baseLine.points[1]) 
        let foot1_2d = Potree.math.getFootPoint(fixPoint2d, baselineP12d, baselineP22d) 
        let minZ = Math.min(fixPoint.basePoint.z, baseLine.points[0].z, fixPoint.z)
        let maxZ = Math.max(fixPoint.basePoint.z, baseLine.points[0].z, fixPoint.z) 
        let foot1_P1 = new THREE.Vector3(foot1_2d.x, foot1_2d.y, fixPoint.z)
        let foot1_P2 = new THREE.Vector3(foot1_2d.x, foot1_2d.y, minZ)
        let foot1_P3 = new THREE.Vector3(foot1_2d.x, foot1_2d.y, maxZ)
        
        
        let info = { 
            disMeasure1:{
                points: [new THREE.Vector3().copy(fixPoint), foot1_P1],  
                guideLinePoints : [foot1_P2, foot1_P3] //垂足上的垂线，从最低点到最高点(包含disMeasure2那一段)
            }
        }
      
        let basePoint2d = new THREE.Vector2().copy(fixPoint.basePoint)
        let anotherPoint2d = new THREE.Vector2().addVectors(basePoint2d, new THREE.Vector2().subVectors(baselineP12d,baselineP22d))//测量线方向上另一点 
        let foot2_2d = Potree.math.getFootPoint(fixPoint2d, basePoint2d, anotherPoint2d) 
        let foot2_P1 = new THREE.Vector3(foot2_2d.x, foot2_2d.y, fixPoint.basePoint.z) 
        let foot2_P2 = new THREE.Vector3(foot1_2d.x, foot1_2d.y, fixPoint.basePoint.z)
        info.disMeasure2 = {
            points : [new THREE.Vector3().copy(fixPoint.basePoint),  foot2_P1],
            guideLinePoints : [foot2_P1, foot2_P2/* , foot1_P2 */],
        }
        
        fixPoint.bus.emit('measureChange',[
            {line: info.disMeasure1.points, dis: info.disMeasure1.points[0].distanceTo(info.disMeasure1.points[1])},
            {line: info.disMeasure2.points, dis: info.disMeasure2.points[0].distanceTo(info.disMeasure1.points[1])} 
        ])
         
        
        return info
    }
    
    
    let createMeasureForPoint = (fixPoint)=>{
        
        
        let info = getMeasurePointsInfo(fixPoint)
        if(!info)return
         
        let info1 = {//垂直于基准线的水平测量线
            measureType : 'Hor Distance',  color : pointMeasureColor ,
            unableDrag: true,
            points: info.disMeasure1.points,
            guideLinePoints : info.disMeasure1.guideLinePoints 
        }
        let disMeasure1 = viewer.measuringTool.createMeasureFromData(info1);
         
         
        
        let info2 = {//平行于基准线的水平测量线
            measureType : 'Hor Distance',  color : pointMeasureColor , 
            unableDrag: true,
            points: info.disMeasure2.points,
            guideLinePoints : info.disMeasure2.guideLinePoints 
        } 
        let disMeasure2 = viewer.measuringTool.createMeasureFromData(info2);
    
        
        fixPoint.disMeasure1 = disMeasure1;
        fixPoint.disMeasure2 = disMeasure2;
            
            
        [disMeasure1,disMeasure2].forEach(measure=>{
            measure.addEventListener("selected", (e) => {
                fixPoint.bus.emit('selectMeasure',e.state)  
            })    
        })
    }
    
    let removeMeasureForPoint = (fixPoint)=>{
        viewer.scene.removeMeasurement(fixPoint.disMeasure1);  
        viewer.scene.removeMeasurement(fixPoint.disMeasure2);  
        fixPoint.disMeasure1 = null
        fixPoint.disMeasure2 = null
        fixPoint.basePoint = null 
    }
    let updateMeasureForPoint = (fixPoint, {onlyBasePoint}={})=>{
        let info = getMeasurePointsInfo(fixPoint)
        if(!info)return
        if(!onlyBasePoint){
            fixPoint.disMeasure1.points = info.disMeasure1.points
            fixPoint.disMeasure1.update({ifUpdateMarkers:true})
        }
        fixPoint.disMeasure1.guideLinePoints = info.disMeasure1.guideLinePoints 
        fixPoint.disMeasure1.updateGuideLines()
        fixPoint.disMeasure2.points = info.disMeasure2.points
        fixPoint.disMeasure2.update({ifUpdateMarkers:true})
        fixPoint.disMeasure2.guideLinePoints = info.disMeasure2.guideLinePoints 
        fixPoint.disMeasure2.updateGuideLines()
        
    }
    
    
    
    
    
    

    var sdk = {
        temp: {}, //记录
        debug: isDebug,
        scene: {
            getScreenByPoint(pos, canShelter) {
                //通过真实坐标获取DOM坐标
                let pos3d = new THREE.Vector3().copy(pos);

                if (canShelter) {
                    if (viewer.ifPointBlockedByIntersect(pos3d)) {
                        //console.log('shelter')
                        return {
                            trueSide: false
                        };
                    }
                }

                var viewport = viewer.mainViewport;
                var camera = viewport.camera;
                var dom = viewer.renderArea;
                //Potree.Log('getScreenByPoint scene' , pos3d.toArray(), {font:{toFixed:2,fontSize:10}})

                return Potree.Utils.getPos2d(pos3d, viewport, dom );
            },
            getPointByScreen(pos2d) {
                //获取当前画面鼠标所在位置的三维点(必须是点云点)
                let position,
                /* datasetId,
                dataset_location, */
                intersect;
                let Handler = viewer.inputHandler;

                let needReGet =
                    !Potree.settings.depTexLocBindDataset &&
                    Potree.settings.useDepthTex &&
                    Handler.intersect &&
                    !Handler.intersect.pointcloud; //如果开启了depTexLocBindDataset，热点就可能使用深度图了，属于该漫游点。全景得到的位置更均匀
                if ((pos2d && pos2d.inDrag) || needReGet) {
                    //不使用当前鼠标所在位置的intersect，单独算
                    if (!pos2d) {
                        // needReGet
                        intersect = Handler.getIntersect({viewport:Handler.hoverViewport, onlyGetIntersect:true, usePointcloud: true}) //数据集多的时候卡顿
                         
                        intersect = Handler.getIntersect(
                                Handler.hoverViewport,
                                true,
                                null,
                                null,
                                true); //数据集多的时候卡顿
                    } else {
                        pos2d.clientX = pos2d.x;
                        pos2d.clientY = pos2d.y;
                        pos2d.onlyGetIntersect = true;
                        pos2d.whichPointcloud = !Potree.settings.depTexLocBindDataset;
                        pos2d.usePointcloud = true // 深度图不准
                        intersect = Handler.onMouseMove(pos2d);
                    }
                } else {
                    intersect = Handler.intersect;
                }

                if (intersect && intersect.location) {
                    position = intersect.location.clone();
                    /* datasetId = intersect.pointcloud.dataset_id;
                    dataset_location = Potree.Utils.datasetPosTransform({
                            toDataset: true,
                            pointcloud: intersect.pointcloud,
                            position,
                        }); */
                } else
                    return null;
                //console.log('getPointByScreen',position )
                return {
                    position,
                    /* datasetId,
                    dataset_location */
                };
            }, //全景模式一直获取会很卡


            getPose2() {
                const camera = viewer.scene.getActiveCamera();
                const target = viewer.scene.view.getPivot();
                const position = viewer.scene.view.position;
                return {
                    position,
                    target
                };
            },

            currentCamera() {
                return viewer.scene.getActiveCamera().position.clone();
            },
            //  切换模式 1 点云 0 全景图
            changeMode(v) {
                //Potree.settings.displayMode = Potree.settings.displayMode == 'showPointCloud' ? 'showPanos' : 'showPointCloud'
                Potree.settings.displayMode = v == 0 ? "showPanos" : "showPointCloud";
            },
            getCurrentMode() {
                return Potree.settings.displayMode == "showPanos" ? 0 : 1;
            },

            comeToTag(tag) {
                let dontLookUp = page == "geoRegistration"; //防止相机在地面以下
                return viewer.focusOnObject({
                    position: new THREE.Vector3().copy(tag)
                },
                    "tag",
                    null, {
                    dontLookUp,
                    maxDis: Potree.config.panoFieldRadius,
                    checkIntersect: true /*,  sameFloor:true */,
                }).promise;
            },
            comeToMeasure(measure) {
                let result = viewer.focusOnObject(measure.object, "measure", 1200);

                return result.msg ? result.msg : result.promise;
                //返回值 1 deferred 表示即将位移 2 'posNoChange' 表示已在最佳位置 3 'tooFar' 表示距离最佳位置太远
                //后两种都代表停在原位
            },
            comeTo(o = {}) {
                //飞到某个点 暂时没写全景模式
                let deferred = $.Deferred();
                viewer.scene.view.setView(
                    $.extend({}, o, {
                        duration: o.dur,
                        callback: () => {
                            o.callback && o.callback();
                            deferred.resolve(true);
                        },
                    }));
                return deferred.promise();
            },

            /**
             * 开始测量
             */
            startMeasure(type, unit, color) {
                const bus = mitt();
                let info = getMeasureType(type, unit);
                //info.bus = bus
                info.color = color

                let measure = viewer.measuringTool.startInsertion( info,
                        () => {
                        //done:
                        bus.emit("end", ret); //完成
                    },
                        () => {
                        //cancel
                        bus.emit("quit", ret); //删除
                    });

                Potree.Log("startMeasure: " + measure.id, {
                    font: {
                        color: "#00c7b2"
                    },
                });


                viewer.setPointStandardMat(true);
                const ret = {
                    bus,
                    type,
                    object: measure,
                    ...getMeasureFunction(measure, bus),
                };

                measure.addEventListener("intersectNoPointcloud", () => {
                    bus.emit("invalidPoint");
                });
                measure.addEventListener("firstClick", () => {
                    bus.emit("firstClickMarker");
                });



                return ret;
            },
            quitMeasure() {
                viewer.setPointStandardMat(false);
            },

            /**
             * 绘画测量点
             */
            drawMeasure(
                type,
                unit,
                points,
                datasetId,
                dataset_points,
                points_datasets,
                sid, color) {
                const bus = mitt();

                /* if(!viewer.scene.measurements.find(e=>e.isBaseLine)){
                    type = 'BASE_LINE'
                }
                 */

                let info = getMeasureType(type, unit);
                info.points = points;
                //info.datasetId = datasetId;
                info.dataset_points = dataset_points;
                info.points_datasets = points_datasets;
                info.sid = sid;
                info.bus = bus;
                info.color = color
                let measure = viewer.measuringTool.createMeasureFromData(info);
                Potree.Log("drawMeasure由数据新建: " + measure.id, {
                    font: {
                        color: "#00c7b2"
                    },
                });
                //console.log(info)
                
                /* if(measure.isBaseLine && viewer.mainViewport.camera.type != 'OrthographicCamera'){ 
                    Potree.Utils.updateVisible(measure,'enterOrthoView',false)//基准线仅在正交视图可见
                }  */
                 
                 
                 
                const ret = {
                    // 退出测量模式，清除之前操作
                    object: measure,
                    bus,
                    ...getMeasureFunction(measure, bus),
                };

                viewer.dispatchEvent({type:'camera_changed', viewport:viewer.mainViewport, changeInfo:{}})//update sprite

                return ret;
            },



/* 
            // 创建固定点对象，measure是否是测量模式，
            //graph 如果是形状则有形状路径点，如果不是形状则传入pos当前固定点的位置 
            sdk.scene.createFixPoint({  measure: boolean, 
                graph: Array<{x,y,z}>, pos: {xyz} })

 */




            createFixPoint({measure, graph, pos, basePoint}){//创建固定点或多线段
             
                console.log('createFixPoint',measure, graph, pos, basePoint)
                let shape,  measureFun, mainPoint = new THREE.Vector3(), bus = mitt();  
                basePoint && (mainPoint.basePoint = new THREE.Vector3().copy(basePoint))
                mainPoint.bus = bus
                
                const baseLineChanged = ()=>{
                    updateMeasureForPoint(mainPoint)
                }
                const setDisplay = (show)=>{ 
                    if(graph){
                        Potree.Utils.updateVisible(shape, "forceByUser", show); 
                    }
                    if(mainPoint.basePoint){
                        Potree.Utils.updateVisible(mainPoint.disMeasure1, "forceByUser", show); 
                        Potree.Utils.updateVisible(mainPoint.disMeasure2, "forceByUser", show); 
                    } 
                    viewer.dispatchEvent('content_changed')  
                } 
                
                
                if(graph){ //多线段
                    let info = {
                        measureType : 'MulDistance_shape', color : pointMeasureColor
                    }
                    let updateMeasure = ()=>{
                        if(!shape.isNew){
                            mainPoint.copy(shape.getCenter())
                            updateMeasureForPoint(mainPoint) 
                        }
                    }
                    if(graph.length == 0){
                        shape = viewer.measuringTool.startInsertion( info,
                            () => { 
                            bus.emit("end", ret); //完成
                            shape.dispatchEvent('cancelSelect')
                            measure && createMeasureForPoint(mainPoint) 
                            updateMeasure()
                        },
                        () => { 
                            bus.emit("quit", ret); //删除
                        }); 
                    }else{ 
                        info.points = graph;  
                        info.sid = Math.random()//sid;
                        info.bus = bus; 
                        shape = viewer.measuringTool.createMeasureFromData(info);
                        shape && createMeasureForPoint(mainPoint)                         
                        updateMeasure()
                    }
                    bus.on("graphChange",updateMeasure) 
                    
                    measureFun = getMeasureFunction(shape, bus, true) 
                    //和普通MulDistance不同点：选中才能拖拽 非选中时不展示marker (clickSelected)；选中后marker是非选中状态， 但是颜色一样
                    //https://lanhuapp.com/web/#/item/project/stage?tid=de3e5e3e-a489-4b19-862a-7c87ce113467&pid=fa4ff928-d61e-438a-b8ee-f848048b7f52
                     
                }else{ 
                    mainPoint.copy(pos)
                    mainPoint.isFixPoint = true  
                    mainPoint.pos2d = Potree.Utils.getPos2d(mainPoint, viewer.mainViewport, viewer.renderArea )
                    measure && createMeasureForPoint(mainPoint)
                    viewer.fixPoints.push(mainPoint) 
                }
               
                
                viewer.addEventListener('baseLineChanged',baseLineChanged)  
                         
                     
                 

                
                const ret = {  
                    bus,
                    destroy :  ()=>{
                        console.log('destroy'  ) 
                        ret.quitMeasure() 
                        
                        if(graph){
                            measureFun.clear() 
                        }else{
                            let index = viewer.fixPoints.indexOf(mainPoint)
                            index > -1 && viewer.fixPoints.splice(index,1)
                        } 
                    },
                    quitMeasure(){//退出测量模式，删除测量线. 基准线被删时
                        console.log('quitMeasure'  )
                        removeMeasureForPoint(mainPoint) 
                        viewer.removeEventListener('baseLineChanged',baseLineChanged) 
                    },
                    changePos(pos){//固定点修改 
                        console.log('changePos',pos)
                        mainPoint.copy(pos)
                        updateMeasureForPoint(mainPoint)
                       
                    },
                    changeBase(pos){//基准点修改
                        console.log('changeBase',pos)
                        mainPoint.basePoint.copy(pos) 
                        updateMeasureForPoint(mainPoint,{onlyBasePoint:true})
                        
                    },
                    graphDrawComplete: measureFun && measureFun.end,
                         
                    show:()=>{
                        setDisplay(true)
                    },
                    hide:()=>{
                        setDisplay(false)
                    },
                };
                
                
                
                return ret
            },


















            // 开启放大镜
            openMagnifier() {
                //console.error('开启放大镜')
                viewer.magnifier.dispatchEvent({
                    type: "setEnable",
                    value: true
                });
            },
            // 关闭放大镜
            closeMagnifier() {
                //console.error('关闭放大镜')
                viewer.magnifier.dispatchEvent({
                    type: "setEnable",
                    value: false
                });
            },

            changePointDensity(levelType) {
                //点云密度：低中高
                Potree.settings.UserPointDensity = levelType;
                return {
                    percent: Potree.config.pointDensity[levelType].maxLevelPercent,
                }; //回调需要更改密度百分比滑动条
            },

            changeDensityPercent(percent) {
                //点云密度百分比（细节） percent : 0-1
                //console.log('changeDensityPercent ', percent) //有出现过首次加载大于1的情况？？？
                Potree.settings.UserDensityPercent = percent;

                viewer.setPointLevels();
            },

            // 设置far
            changeViewRange(num) {
                Potree.settings.cameraFar = num;
            },

            // 设置色彩模式  0 彩色 1 海拔 2 半透明（透明色）
            changeColorMode: function (mode) {
                const modes = ["rgba", "elevation", "color"];
                mode = modes[mode];
                //console.log('设置色彩模式 ', mode)

                let otherChange = {};

                switch (mode) {
                case "rgba": //每个点的颜色
                    otherChange.opacity = 1;
                    otherChange.size = 0.4 / 4;
                    break;
                case "elevation":
                    otherChange.opacity = 0.3;
                    otherChange.size = 0.4 / 4;
                    break;
                case "color": //透明色
                    //otherChange.color = ''
                    otherChange.opacity = 0.3;
                    otherChange.size = 0.4 / 4;

                    break;
                }
                viewer.scene.pointclouds.forEach((e) => {
                    e.material.activeAttributeName = mode;
                });
                sdk.scene.changePointSize(otherChange.size);
                sdk.scene.changePointOpacity(otherChange.opacity);

                delete otherChange.color;
                return otherChange;
            },

            // 设置点大小
            changePointSize(num) {
                viewer.scene.pointclouds.forEach((e) => {
                    e.changePointSize(num);
                });
            },
            // 设置点透明度
            changePointOpacity: function (num) {
                //num:0-1   navvis用的是亮度
                viewer.scene.pointclouds.forEach((e) => {
                    e.changePointOpacity(num);
                });
            },

            // 设置点形状  传入参数 1 矩形 2 圆形
            changePointShape(shape) {
                viewer.scene.pointclouds.forEach((e) => {
                    e.material.shape =
                        Potree.PointShape[shape == 1 ? "SQUARE" : "CIRCLE"]; // and PARABOLOID
                });
            },
            // 设置是否强化边缘
            changePointEdge(isStrong) {
                //console.log('强化边缘', isStrong)
                viewer.setEDLEnabled(isStrong);
            },

            // 设置漫游点位显示
            changePanoPoint(show) {
                Potree.settings.ifShowMarker = !!show;
            },

            getDownloadInfo() {
                //获取直接下载点云的参数给后台
                return viewer.modules.Clip.downloadNoCrop();
            },

            /* getDataSets() {
                //获取所有数据集对象
                let datasets = CloneJson(Potree.datasetData);
                datasets.forEach((e) => {
                    var pointcloud = viewer.scene.pointclouds.find( (p) => p.dataset_id == e.id);

                    e.changeDisplay = function (show) {
                        Potree.Utils.updateVisible(pointcloud, "datasetSelection", !!show);
                        pointcloud.panos.forEach((pano) => {
                            //数据集隐藏时漫游点也隐藏 //还是不隐藏了,仅隐藏点云
                            Potree.Utils.updateVisible(pano, "pointcloudVisi", show, 0);
                        });
                        if (
                            viewer.modules.SiteModel.editing ||
                            viewer.modules.Alignment.editing) {
                            viewer.updateFpVisiDatasets();
                        }
                    };
                    e.changeColor = function (color) {
                        pointcloud.material.color = color;
                    };
                    e.getColor = function () {
                        return pointcloud.material.color;
                    };
                    e.focus = function () {
                        viewer.modules.Alignment.SplitScreen.focusOnPointCloud(pointcloud);
                    };
                    e.flyTo = function () {
                        return viewer.flyToDataset({
                            pointcloud
                        }) || false;
                    };
                    e.getAttachPloygon = function () {
                        //计算完后才会有
                        return (
                            pointcloud.belongToEntity && pointcloud.belongToEntity.polygon);
                    };
                });

                return datasets;
            }, */

            screenshot: (width, height) => {
                //截图 
                let meterPerPixel,
                    isScreenshoting = true;
                var {
                    getImagePromise,
                    finishPromise
                } = viewer.startScreenshot({
                        type: "default",
                        hideMarkers:true,
                        //hideMeasures:true,
                    },
                        width,
                        height);      
                finishPromise.done(() => {
                    isScreenshoting = false;
                });
                 
                if(viewer.mainViewport.camera.type == 'OrthographicCamera'){
                   meterPerPixel = 1 / viewer.mainViewport.camera.zoom
                } 
                return {finishPromise, meterPerPixel};
            },

            canTurnToPanoMode(pos) {
                /* if(viewer.hasNoPanoDataset){
                return
                } */
                pos = pos ? new THREE.Vector3().copy(pos) : viewer.images360.position;

                let pano = viewer.images360.findNearestPano(pos);
                if (
                    pano &&
                    pano.position.distanceTo(pos) < Potree.config.panoFieldRadius) {
                    return true;
                }
                //poschange后会调用这个，如果返回false会变为点云模式，且不会自动变回原先的模式
            },




            trackScenePos(){// 单击场景某个位置 返回当前三维坐标，   调用时场景不能漫游与选择直到获取完成
                let deferred = $.Deferred();
                let quit = ()=>{ //取消获取
                    viewer.removeEventListener('global_click',gotIntersect)
                    Potree.settings.unableNavigate = false
                    Potree.settings.unableUseDepTexPick = false
                    viewer.controls.setEnable(true)
                }

                let gotIntersect = (e)=>{ 
                    if(e.intersect && e.intersect.location){
                        console.log('quit', e.intersect.location)
                        quit()
                        deferred.resolve(e.intersect.location)
                    }
                }

                viewer.addEventListener('global_click',gotIntersect)
                Potree.settings.unableNavigate = true
                Potree.settings.unableUseDepTexPick = true


                viewer.controls.setEnable(false)

                return {
                    promise: deferred.promise() ,   //获取的promise, 获取到了返回三维坐标，没获取到返回null
                    quit
                }

            },


            getSceneCropSetting(){ 
                let boxData = viewer.modules.Clip.getBoxData()
                return {
                    top : {value:boxData.scaleZ*100, minTop:0, maxTop:10},
                    scale : {value: boxData.scaleXY*100},
                    rotate :  {value: THREE.Math.radToDeg(boxData.rotAngle)},
                    //rotByUser : {value:boxData.rotByUser}
                }
                
            },

            //设置裁剪值
            setSceneCropSetting({top,scale,rotate  }){ 
                viewer.modules.Clip.boxData = {
                    scaleZ: top.value/100,
                    scaleXY: scale.value/100,
                    rotAngle: THREE.Math.degToRad(rotate.value),
                    //rotByUser      
                }
                viewer.modules.Clip.setBoxPose()
                
            },


            enterCropSetting(){
                let Clip = viewer.modules.Clip
                Clip.enter()
                return { 
                    quit(){
                        Clip.leave()
                    },
                    enterSetScale(){
                        Clip.box.frameHorizon.visible = true
                    },
                    leaveSetScale(){
                        Clip.box.frameHorizon.visible = false
                    },
                    enterSetTop(){
                        Clip.box.frameVertical.visible = true
                    },
                    leaveSetTop(){
                        Clip.box.frameVertical.visible = false
                    },
                    enterSetRotate(){
                        Clip.box.frameHorizon.visible = true
                        Clip.box.frameVertical.visible = true
                    },
                    leaveSetRotate(){
                        Clip.box.frameHorizon.visible = false
                        Clip.box.frameVertical.visible = false
                    },
                }
            },

            ...parameter.sceneBus,

        },



        transformPoint(point, datasetId, dataset_location) {
            /* //获取由dataset_location转出的position
            var r = datasetId != void 0
                 ? Potree.Utils.datasetPosTransform({
                    fromDataset: true,
                    datasetId,
                    position: dataset_location,
                })
                 : point;

            return r; */
            return point
        },

        // 坐标转换
        coordTransform: (originType, pos, targetType, datasetId) => {
            // pos 坐标的类型， 当类型为SCREEN时为 { x, y } 其余为 {x, y, z}
            if (pos.z == void 0)
                pos.z = 0; //否则datasetPosTransform NAN 地理注册
            let needMeshLocal;
            if (originType == targetType)
                return pos;

            if (
                originType == CoordType.SCENE_SCREEN ||
                originType == CoordType.MAP_SCREEN) {
                let tool = originType == CoordType.SCENE_SCREEN ? sdk.scene : sdk.map;

                let result = tool.getPointByScreen(pos) || {}; //{ position, datasetId, dataset_location }

                pos = result.position;
                if (!pos)
                    return;

                datasetId = result.datasetId;
                originType = CoordType.LOCAL;
            }

            let pointcloud;
            if (datasetId != void 0) {
                pointcloud = viewer.scene.pointclouds.find(
                        (p) => p.dataset_id == datasetId);
            }

            if (originType == CoordType.MESH_LOCAL) {
                pos = Potree.Utils.datasetPosTransform({
                        fromDataset: true,
                        pointcloud,
                        position: pos,
                    });

                originType = CoordType.LOCAL;
            }

            if (targetType == CoordType.MESH_LOCAL) {
                needMeshLocal = true;
                targetType = CoordType.LOCAL; //先转化为求CoordType.LOCAL
            }

            if (originType == targetType) {
                //for控制点，获取点云未移动前的坐标值。暂且这么写。
                if (needMeshLocal) {
                    //var invMatrix = new THREE.Matrix4().getInverse(viewer.scene.pointclouds[0].transformMatrix)

                    pos = Potree.Utils.datasetPosTransform({
                            toDataset: true,
                            pointcloud,
                            position: pos,
                        });
                }
                return pos;
            }

            //先转成lonlat(高德)
            switch (originType) {
                //EPSG: 4550大地坐标
            case CoordType.EPSE:
                pos = viewer.transform.lonlatTo4550.inverse(pos);
                break;
                //Wgs84 经纬度
            case CoordType.WGS84: //84转高德
                //pos = wgs84ToAMap(pos)
                break;
                // 本地坐标
            case CoordType.LOCAL:
                pos = viewer.transform.lonlatToLocal.inverse(pos);
            }

            // 需要转换成什么类型的坐标
            switch (targetType) {
            case CoordType.SCENE_SCREEN: // 场景屏幕坐标
                pos = sdk.scene.getScreenByPoint(pos);
                break;
            case CoordType.MAP_SCREEN: // 地图屏幕坐标
                pos = sdk.map.getScreenByPoint(pos);
                break;
                //EPSG: 4550大地坐标
            case CoordType.EPSE:
                pos = viewer.transform.lonlatTo4550.forward(pos);
                break;
                //Wgs84 经纬度
            case CoordType.WGS84:
                //pos = aMapToWgs84(pos)
                break;
                //本地坐标
            case CoordType.LOCAL:
                pos = viewer.transform.lonlatToLocal.forward(pos);
            }

            if (needMeshLocal) {


                pos = Potree.Utils.datasetPosTransform({
                        toDataset: true,
                        pointcloud,
                        position: pos,
                    });
            }

            return pos;
        },

        enterMeasurement() {
            //进入测量模块
            viewer.setLimitFar(false);
        },
        leaveMeasurement() {
            //退出测量模块
            viewer.setLimitFar(true);
        },



        loadModel(info) {
            info.moveWithPointcloud = true;
            viewer.loadModel(info);
        },

        enterTopView(){
            viewer.navCubeViewer.dispatchEvent('enterTopView')

        },

        leaveTopView(){
            viewer.navCubeViewer.dispatchEvent('leaveTopView')
        },

        destroy(){//重新创建viewer，删了旧的
            viewer.setDisplay(false)
        }

    };
    Potree.sdk = sdk;
    return sdk;
};

export default enter;













/*
热点poi加载到的数据中，pos是错误的，只使用dataset_location



关于webgl context lost报错：

已知有一iphoneX在创建shadowMap后才报错。

所以报错的话很可能是代码中的某一句，去除后就会正常。


=======

如果遇到点云只显示一部分，很可能是裁剪范围出错


*/