import * as mars3d from "mars3d"
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export let map // mars3d.Map三维地图对象
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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: 31.841275, lng: 117.311355, alt: 50289, heading: 292, pitch: -85 }
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}
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}
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export const eventTarget = new mars3d.BaseClass() // 事件对象，用于抛出事件到面板中
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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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map.basemap = 2017 // 切换至蓝色底图
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eventTarget.fire("mapLoaded")
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addGaodeLayer()
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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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// 叠加的图层
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let tileLayer
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export function addGaodeLayer() {
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removeLayer()
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tileLayer = new mars3d.layer.GaodeLayer({
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layer: "time",
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minimumTerrainLevel: 4,
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minimumLevel: 4,
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proxy: "//server.mars3d.cn/proxy/"
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})
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map.addLayer(tileLayer)
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}
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export function addBaiduLayer() {
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removeLayer()
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tileLayer = new mars3d.layer.BaiduLayer({
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name: "百度实时路况",
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layer: "time"
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})
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map.addLayer(tileLayer)
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}
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function removeLayer() {
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if (tileLayer) {
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map.removeLayer(tileLayer, true)
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tileLayer = null
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}
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}
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