import { ELocalStorageKey, EDeviceTypeName } from '/@/types'
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import * as Cesium from 'cesium'
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import {
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getCurrentInstance,
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} from 'vue'
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interface billboardSetting {
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image: string,
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scale?: number,
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[key: string]: any
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}
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interface pointSetting {
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pixelSize: number,
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outlineWidth: number,
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[key: string]: any
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}
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interface labelSetting {
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text: string | undefined,
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font: string,
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outlineWidth: number,
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[key: string]: any
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}
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interface pointOption {
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longitude: number
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latitude: number
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point?: pointSetting
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billboard?: billboardSetting
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label?: labelSetting
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id?: string
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}
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// 定义全局的viewer变量防止重复生成
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// eslint-disable-next-line no-var
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var viewer: Cesium.Viewer | null = null
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export function cesiumOperation () {
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let handler: Cesium.ScreenSpaceEventHandler
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const _init = () => {
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if (viewer) return
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// Cesium Token
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const cesiumToken = import.meta.env.VITE_CESIUM_TOKEN
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Cesium.Ion.defaultAccessToken = cesiumToken
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Cesium.Camera.DEFAULT_VIEW_FACTOR = -0.45
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// 西南东北，默认显示中国
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Cesium.Camera.DEFAULT_VIEW_RECTANGLE = Cesium.Rectangle.fromDegrees(110, -25, 110, 90)
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viewer = new Cesium.Viewer('cesiumContainer', {
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infoBox: false, // 禁用沙箱，解决控制台报错
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animation: false, // 左下角的动画仪表盘
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baseLayerPicker: false, // 右上角的图层选择按钮
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geocoder: false, // 搜索框
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homeButton: false, // home按钮
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sceneModePicker: false, // 模式切换按钮
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timeline: false, // 底部的时间轴
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navigationHelpButton: false, // 右上角的帮助按钮，
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selectionIndicator: false, // 是否显示选择指示器
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baseLayer: false,
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})
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handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas)
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viewer.cesiumWidget.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK) // 禁用双击
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// viewer.scene.screenSpaceCameraController.minimumZoomDistance = 100
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viewer.scene.screenSpaceCameraController.maximumZoomDistance = 4500000
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loadLAYER()
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}
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// 加载图层、注解方法
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const loadLAYER = () => {
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// 天地图Key
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const TDT_Token = 'c6eea7dad4fa1e2d1e32ec0e7c9735db'
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// 天地图地图
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const TDT_IMG_C = 'https://{s}.tianditu.gov.cn/img_c/wmts?service=wmts&request=GetTile&version=1.0.0' +
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'&LAYER=img&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}' +
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'&style=default&format=tiles&tk=' + TDT_Token
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// 天地图注记
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const TDT_ZJ = 'https://{s}.tianditu.gov.cn/cia_c/wmts?service=wmts&request=GetTile&version=1.0.0' +
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'&LAYER=cia&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}' +
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'&style=default&format=tiles&tk=' + TDT_Token
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// 天地图图层加载
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const imageryProvider = new Cesium.WebMapTileServiceImageryProvider({
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url: TDT_IMG_C,
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layer: 'tdtImg_c',
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style: 'default',
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format: 'tiles',
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tileMatrixSetID: 'c',
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subdomains: ['t0', 't1', 't2', 't3', 't4', 't5', 't6', 't7'],
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tilingScheme: new Cesium.GeographicTilingScheme(),
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tileMatrixLabels: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19'],
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maximumLevel: 50,
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})
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viewer?.imageryLayers.addImageryProvider(imageryProvider)
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// 天地图中文注记加载
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const annotation = new Cesium.WebMapTileServiceImageryProvider({
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url: TDT_ZJ,
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layer: 'tdtImg_c',
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style: 'default',
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format: 'tiles',
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tileMatrixSetID: 'c',
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subdomains: ['t0', 't1', 't2', 't3', 't4', 't5', 't6', 't7'],
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tilingScheme: new Cesium.GeographicTilingScheme(),
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tileMatrixLabels: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19'],
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maximumLevel: 50,
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})
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viewer?.imageryLayers.addImageryProvider(annotation)
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}
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// 清除所有标记点
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function removeAllPoint () {
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if (viewer) {
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viewer?.entities?.removeAll()
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}
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}
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// 添加标记点
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const addPoint = (pointOption: pointOption) => {
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if (!pointOption.longitude && !pointOption.latitude) return
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viewer?.entities.add({
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position: Cesium.Cartesian3.fromDegrees(pointOption.longitude, pointOption.latitude),
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billboard: pointOption.billboard,
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point: pointOption.point,
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label: pointOption.label,
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id: pointOption.id,
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})
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}
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// 通过点ID删除
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function removeById (id:string) {
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viewer?.entities.removeById(id)
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const pointEntity = viewer?.entities.getById(id)
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if (pointEntity && pointEntity !== undefined) {
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viewer?.entities.remove(pointEntity)
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}
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}
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// 飞行 flyto
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const flyTo = (pointOption: pointOption, time: number = 4) => {
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if (!pointOption.longitude && !pointOption.latitude) return
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const destination = Cesium.Cartesian3.fromDegrees(pointOption.longitude, pointOption.latitude, 3000)
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const duration = time
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viewer?.camera.flyTo({
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destination,
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duration
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})
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}
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onMounted(() => {
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if (viewer) return
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_init()
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const { appContext } = getCurrentInstance()
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const global = appContext.config.globalProperties
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global.$viewer = viewer
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})
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// 销毁地图模型
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onUnmounted(() => {
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viewer = null
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})
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return {
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addPoint,
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removeAllPoint,
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flyTo,
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removeById
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}
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}
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