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 queryMapserver
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let geoJsonLayer
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let drawGraphic
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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: 31.79536, lng: 117.255222, alt: 16294, heading: 358, pitch: -76 }
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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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showGeoJsonLayer()
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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 query(keyWords) {
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queryMapserver.query({
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column: "项目名称",
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text: keyWords,
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graphic: drawGraphic,
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success: (result) => {
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if (result.count === 0) {
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globalMsg("未查询到相关记录！")
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geoJsonLayer.load({ data: { features: null } })
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return
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}
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eventTarget.fire("result", { result })
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geoJsonLayer.load({ data: result.geojson })
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},
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error: (error, msg) => {
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console.log("服务访问错误", error)
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globalAlert(msg, "服务访问错误")
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}
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})
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}
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function showGeoJsonLayer() {
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queryMapserver = new mars3d.query.QueryArcServer({
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url: "//server.mars3d.cn/arcgis/rest/services/mars/hfghss/MapServer/2",
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popup: "all",
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pageSize: 6
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})
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// 用于显示查询结果（geojson）的图层
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geoJsonLayer = new mars3d.layer.GeoJsonLayer({
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symbol: {
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styleOptions: {
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image: "img/marker/mark3.png",
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scale: 1,
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scaleByDistance: true,
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scaleByDistance_far: 20000,
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scaleByDistance_farValue: 0.5,
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scaleByDistance_near: 1000,
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scaleByDistance_nearValue: 1,
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clampToGround: true,
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highlight: { type: "click", image: "img/marker/mark1.png" },
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label: {
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text: "{项目名称}",
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font_size: 25,
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color: "#ffffff",
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outline: true,
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outlineColor: "#000000",
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pixelOffsetY: -25,
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scaleByDistance: true,
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scaleByDistance_far: 80000,
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scaleByDistance_farValue: 0.5,
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scaleByDistance_near: 1000,
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scaleByDistance_nearValue: 1,
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distanceDisplayCondition: true,
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distanceDisplayCondition_far: 80000,
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distanceDisplayCondition_near: 0
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}
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}
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},
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popup: "all"
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})
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map.addLayer(geoJsonLayer)
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geoJsonLayer.on(mars3d.EventType.load, function (event) {
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const list = event.list
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eventTarget.fire("beforUI", { list })
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})
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}
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// 框选查询 矩形
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export function drawRectangle() {
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clearAll()
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map.graphicLayer.startDraw({
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type: "rectangle",
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style: {
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color: "#00FF00",
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opacity: 0.3,
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outline: true,
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outlineColor: "#ffffff",
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clampToGround: true
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},
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success: function (graphic) {
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drawGraphic = graphic
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console.log("框选矩形：", drawGraphic.toGeoJSON({ outline: true }))
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}
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})
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}
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// 框选查询 圆
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export function drawCircle() {
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clearAll()
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map.graphicLayer.startDraw({
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type: "circle",
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style: {
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color: "#00FF00",
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opacity: 0.3,
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outline: true,
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outlineColor: "#ffffff",
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clampToGround: true
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},
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success: function (graphic) {
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drawGraphic = graphic
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console.log("框选圆：", drawGraphic.toGeoJSON({ outline: true }))
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}
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})
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}
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// 框选查询 多边行
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export function drawPolygon() {
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clearAll()
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map.graphicLayer.startDraw({
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type: "polygon",
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style: {
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color: "#00FF00",
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opacity: 0.3,
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outline: true,
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outlineColor: "#ffffff",
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clampToGround: true
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},
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success: function (graphic) {
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drawGraphic = graphic
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console.log("框选多边行：", drawGraphic.toGeoJSON())
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}
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})
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}
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export function flyToGraphic(graphic) {
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graphic.openHighlight()
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graphic.flyTo({
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radius: 1000, // 点数据：radius控制视距距离
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scale: 1.5, // 线面数据：scale控制边界的放大比例
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complete: () => {
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graphic.openPopup()
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}
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})
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}
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export function clearAll() {
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drawGraphic = null
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map.graphicLayer.clear()
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geoJsonLayer.clear()
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}
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// 首页
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export function showFirstPage() {
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queryMapserver.showFirstPage()
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}
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// 上一页
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export function showPretPage() {
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queryMapserver.showPretPage()
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}
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// 下一页
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export function showNextPage() {
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queryMapserver.showNextPage()
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}
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