import * as mars3d from "mars3d"
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export let map // mars3d.Map三维地图对象
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let mapEx
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// 需要覆盖config.json中地图属性参数（当前示例框架中自动处理合并）
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export const mapOptions = {
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layers: [
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{
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type: "geojson",
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name: "示例数据",
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url: "//data.mars3d.cn/file/geojson/mars3d-draw.json",
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popup: "{type} {name}",
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show: true
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},
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{
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type: "3dtiles",
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name: "测试模型",
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url: "//data.mars3d.cn/3dtiles/bim-daxue/tileset.json",
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position: { lng: 116.313536, lat: 31.217297, alt: 80 },
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scale: 100,
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show: true
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}
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]
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}
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/**
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* 初始化地图业务，生命周期钩子函数（必须）
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* 框架在地图初始化完成后自动调用该函数
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* @param {mars3d.Map} mapInstance 地图对象
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* @returns {void} 无
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*/
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export function onMounted(mapInstance) {
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map = mapInstance // 记录map
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// 修改已有地图为50%
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const mapOld = document.getElementById("centerDiv3D")
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mapOld.style.width = "50%"
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const centerDivEx = mars3d.DomUtil.create("div", "", document.body)
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centerDivEx.setAttribute("id", "centerDivEx")
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const sourceContainer = mars3d.DomUtil.create("div", "mars3d-container", centerDivEx)
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sourceContainer.setAttribute("id", "mars3dContainerEx")
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// 获取原来地图的参数
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const mapOptions2 = map.getCurrentOptions() // map.getOptions()
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mapOptions2.control.baseLayerPicker = true // basemaps底图切换按钮
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mapOptions2.control.sceneModePicker = false
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// 用于双屏同图层，不同配置展示
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for (let i = 0, len = mapOptions2.layers.length; i < len; i++) {
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const item = mapOptions2.layers[i]
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if (item.compare) {
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for (const key in item.compare) {
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item[key] = item.compare[key] // 存在compare属性时
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}
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}
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}
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console.log("分屏地图配置", mapOptions2)
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mapEx = new mars3d.Map(sourceContainer, mapOptions2)
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mapEx.basemap = "天地图电子"
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// 场景模式(2D/3D/哥伦布)变换完成
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map.on(mars3d.EventType.morphComplete, function (event) {
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if (map.scene.mode === Cesium.SceneMode.SCENE2D) {
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mapEx.scene.screenSpaceCameraController.enableTilt = false
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} else {
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mapEx.scene.screenSpaceCameraController.enableTilt = true
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}
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})
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map.on(mars3d.EventType.cameraChanged, _map_extentChangeHandler)
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map.camera.percentageChanged = 0.01
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mapEx.on(mars3d.EventType.cameraChanged, _mapEx_extentChangeHandler)
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mapEx.camera.percentageChanged = 0.01
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_map_extentChangeHandler()
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}
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/**
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* 释放当前地图业务的生命周期函数
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* @returns {void} 无
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*/
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export function onUnmounted() {
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map = null
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}
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function _map_extentChangeHandler(e) {
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mapEx.off(mars3d.EventType.cameraChanged, _mapEx_extentChangeHandler)
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updateView(map, mapEx)
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mapEx.on(mars3d.EventType.cameraChanged, _mapEx_extentChangeHandler)
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}
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function _mapEx_extentChangeHandler(e) {
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map.off(mars3d.EventType.cameraChanged, _map_extentChangeHandler)
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updateView(mapEx, map)
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map.on(mars3d.EventType.cameraChanged, _map_extentChangeHandler)
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}
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// “变化屏”mapChange变化，将“被更新屏”mapUpdate同步更新
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function updateView(mapChange, mapUpdate) {
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const view = mapChange.getCameraView()
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mapUpdate.setCameraView(view, { duration: 0 })
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}
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