<template>
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<div class="height-100 width-100 cesium" id="cesiumContainer"></div>
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<div v-if="centerConfig.type && !centerConfig.latitude" class="pointLongitude">在地图上点击绘制项目中心点</div>
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<div class="switch">
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<div class="2d" v-if="dimension === 3" @click="switchModel('2D')">2D</div>
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<div class="3d" v-else @click="switchModel('3D')">3D</div>
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</div>
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</template>
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<script setup lang="ts">
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import * as Cesium from 'cesium'
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import { onMounted, ref, onUnmounted, } from 'vue'
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import { pointCenter, clickPoint } from '/@/hooks/use-center-point'
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import { useMyStore } from '/@/store'
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let viewer: Cesium.Viewer | null = null
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let handler: Cesium.ScreenSpaceEventHandler
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const dimension = ref(3)
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const { appContext } = getCurrentInstance()
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const global = appContext.config.globalProperties
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// const viewer: { value: Cesium.Viewer | null | undefined } = ref()
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const store = useMyStore()
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const centerConfig = computed(() => {
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return store.state.map.centerConfig
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})
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const init = () => {
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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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loadLAYER()
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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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global.$viewer = viewer
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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 = 'http://{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 = 'http://{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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const Point = (longitude: number, latitude: number) => {
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// 移除地图所有点 重新绘制
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viewer?.entities.removeAll()
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const entity = viewer?.entities.add({
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position: Cesium.Cartesian3.fromDegrees(longitude, latitude),
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point: {
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pixelSize: 24,
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color: Cesium.Color.GREEN,
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outlineColor: Cesium.Color.WHITE,
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outlineWidth: 2,
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}
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})
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// // 将相机定位到标记点的位置
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// viewer.value?.camera.flyTo({
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// destination: entity.position,
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// duration: 2
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// })
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}
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// 切换为二三维模式
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const switchModel = (type: string) => {
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switch (type) {
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case '2D':
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viewer.scene.camera.setView({
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orientation: {
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pitch: Cesium.Math.toRadians(-60),
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heading: Cesium.Math.toRadians(0),
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}
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})
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dimension.value = 2
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break
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case '3D':
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viewer.scene.camera.setView({
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orientation: {
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pitch: Cesium.Math.toRadians(-90),
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heading: Cesium.Math.toRadians(0),
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}
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})
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dimension.value = 3
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}
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}
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// 设置项目中所有的项目中心坐标
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watch(() => store.state.map.pointList, (newVal) => {
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if (newVal) {
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pointCenter(viewer, newVal)
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clickPoint(viewer, newVal)
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}
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}, {
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deep: true
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})
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// 点击地图生成项目中心点
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watch(() => store.state.map.centerConfig.type, (newVal) => {
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if (newVal === false || !store.state.map.centerConfig.type) {
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viewer?.entities.removeAll()
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handler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK)
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} else {
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handler.setInputAction(function (e: any) {
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const cartesian = viewer?.camera.pickEllipsoid(e.position, viewer?.scene.globe.ellipsoid)
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if (cartesian) {
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const cartographic = Cesium.Cartographic.fromCartesian(cartesian)
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const longitude = Cesium.Math.toDegrees(cartographic.longitude)
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const latitude = Cesium.Math.toDegrees(cartographic.latitude)
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const data = {
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longitude,
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latitude,
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}
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store.commit('SET_CENTER_CONFIG_LATITUDE', data)
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Point(longitude, latitude)
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}
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK
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)
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}
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}, {
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deep: true
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})
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onMounted(() => {
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init()
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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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</script>
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<style scoped lang="scss">
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.cesium {
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:deep(.cesium-viewer-bottom) {
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display: none !important;
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}
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}
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.pointLongitude {
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background-color: rgba(20, 20, 20, 0.792);
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position: absolute;
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z-index: 30;
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bottom: 30px;
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color: #fff;
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left: 0;
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right: 0;
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margin: 0 80px;
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padding: 15px 0;
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text-align: center;
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font-size: 16px;
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}
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.switch {
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position: absolute;
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background-color: #fff;
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z-index: 30;
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bottom: 80px;
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font-size: 14px;
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right: 20px;
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cursor: pointer;
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box-shadow: 0 0 4px 0 rgba(0, 0, 0, .6);
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width: 28px;
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height: 28px;
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color: #4e4e4e;
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font-weight: 600;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.switch:hover {
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color: #1180ff;
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}
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</style>
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