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 currSkyBox // 当前生效的Skybox
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let defaultSkybox // cesium自带的Skybox
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const qingtianSkybox = new mars3d.GroundSkyBox({
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sources: {
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positiveX: "img/skybox_near/qingtian/rightav9.jpg",
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negativeX: "img/skybox_near/qingtian/leftav9.jpg",
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positiveY: "img/skybox_near/qingtian/frontav9.jpg",
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negativeY: "img/skybox_near/qingtian/backav9.jpg",
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positiveZ: "img/skybox_near/qingtian/topav9.jpg",
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negativeZ: "img/skybox_near/qingtian/bottomav9.jpg"
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}
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})
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const wanxiaSkybox = new mars3d.GroundSkyBox({
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sources: {
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positiveX: "img/skybox_near/wanxia/SunSetRight.png",
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negativeX: "img/skybox_near/wanxia/SunSetLeft.png",
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positiveY: "img/skybox_near/wanxia/SunSetFront.png",
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negativeY: "img/skybox_near/wanxia/SunSetBack.png",
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positiveZ: "img/skybox_near/wanxia/SunSetUp.png",
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negativeZ: "img/skybox_near/wanxia/SunSetDown.png"
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}
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})
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const lantianSkybox = new mars3d.GroundSkyBox({
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sources: {
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positiveX: "img/skybox_near/lantian/Right.jpg",
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negativeX: "img/skybox_near/lantian/Left.jpg",
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positiveY: "img/skybox_near/lantian/Front.jpg",
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negativeY: "img/skybox_near/lantian/Back.jpg",
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positiveZ: "img/skybox_near/lantian/Up.jpg",
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negativeZ: "img/skybox_near/lantian/Down.jpg"
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}
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})
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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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scene: {
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center: { lat: 31.830035, lng: 117.159801, alt: 409, heading: 41, pitch: 0 }
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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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defaultSkybox = map.scene.skyBox
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currSkyBox = qingtianSkybox
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map.on(mars3d.EventType.postRender, function () {
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const position = map.camera.position
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const height = Cesium.Cartographic.fromCartesian(position).height
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if (height < 230000) {
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if (currSkyBox) {
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map.scene.skyBox = currSkyBox
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}
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map.scene.skyAtmosphere.show = false
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} else {
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if (defaultSkybox) {
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map.scene.skyBox = defaultSkybox
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}
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map.scene.skyAtmosphere.show = true
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}
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})
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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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export function sunny() {
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currSkyBox = qingtianSkybox
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}
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export function sunsetGlow() {
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currSkyBox = wanxiaSkybox
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}
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export function blueSky() {
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currSkyBox = lantianSkybox
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}
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export function defaultSky() {
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currSkyBox = defaultSkybox
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}
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