import * as mars3d from "mars3d"
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export let map // mars3d.Map三维地图对象
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export let graphicLayer // 矢量图层对象
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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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fxaa: true,
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center: { lat: 31.754913, lng: 117.248572, alt: 6220, heading: 357, pitch: -31 }
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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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map.basemap = 2017 // 蓝色底图
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map.fixedLight = true // 固定光照，避免gltf模型随时间存在亮度不一致。
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// 创建矢量数据图层
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graphicLayer = new mars3d.layer.GraphicLayer()
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map.addLayer(graphicLayer)
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// 在layer上绑定监听事件
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graphicLayer.on(mars3d.EventType.click, function (event) {
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console.log("监听layer，单击了矢量对象", event)
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})
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bindLayerPopup() // 在图层上绑定popup,对所有加到这个图层的矢量数据都生效
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bindLayerContextMenu() // 在图层绑定右键菜单,对所有加到这个图层的矢量数据都生效
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// 加一些演示数据
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for (let i = 0; i < 20; i++) {
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const graphic = new mars3d.graphic.ModelEntity({
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style: {
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url: "//data.mars3d.cn/gltf/mars/qiche.gltf",
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scale: 0.5,
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minimumPixelSize: 20,
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// 高亮时的样式（默认为鼠标移入，也可以指定type:'click'单击高亮），构造后也可以openHighlight、closeHighlight方法来手动调用
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highlight: {
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type: mars3d.EventType.click,
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silhouette: true,
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silhouetteColor: "#ff0000",
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silhouetteSize: 4
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},
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label: {
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// 不需要文字时，去掉label配置即可
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text: "皖A000" + i,
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font_size: 16,
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color: "#ffffff",
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outline: true,
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outlineColor: "#000000",
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pixelOffsetY: -20,
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distanceDisplayCondition: true,
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distanceDisplayCondition_far: 50000,
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distanceDisplayCondition_near: 0
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}
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},
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attr: { index: i, remark: "Model示例" }
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})
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graphicLayer.addGraphic(graphic)
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// graphic.on(mars3d.EventType.stop, function (event) {
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// console.log("已停止运行", event.target?.attr);
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// });
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}
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for (let i = 0; i < 20; i++) {
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const graphic = new mars3d.graphic.BillboardEntity({
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style: {
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image: "img/marker/mark3.png",
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scale: 0.6,
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horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
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verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
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scaleByDistance: new Cesium.NearFarScalar(10000, 1.0, 500000, 0.1)
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},
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attr: { index: i, remark: "Billboard示例" }
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})
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graphicLayer.addGraphic(graphic)
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}
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for (let i = 0; i < 3; i++) {
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const graphic = new mars3d.graphic.DivUpLabel({
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style: {
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text: "火星科技",
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color: "#fff",
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font_size: 13,
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font_family: "微软雅黑",
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lineHeight: 20,
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circleSize: 5,
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distanceDisplayCondition: new Cesium.DistanceDisplayCondition(0, 100000)
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},
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attr: { index: i, remark: "DivUpLabel示例" }
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})
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graphicLayer.addGraphic(graphic)
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}
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// 设置动态位置
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graphicLayer.eachGraphic((graphic) => {
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graphic.addDynamicPosition(randomPoint()) // 首次出现的位置
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})
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graphicLayer.eachGraphic((graphic) => {
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graphic.addDynamicPosition(randomPoint(), 20) // 按20秒运动至指定位置
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})
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// 定时更新动态位置（setInterval为演示）
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setInterval(() => {
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graphicLayer.eachGraphic((graphic) => {
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graphic.addDynamicPosition(randomPoint(), 20)
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})
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}, 20000)
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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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graphicLayer.remove()
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graphicLayer = null
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}
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// 取区域内的随机点
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function randomPoint() {
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const jd = random(117.207666 * 1000, 117.287241 * 1000) / 1000
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const wd = random(31.817099 * 1000, 31.876848 * 1000) / 1000
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return Cesium.Cartesian3.fromDegrees(jd, wd, 30)
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}
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function random(min, max) {
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return Math.floor(Math.random() * (max - min + 1) + min)
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}
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// 在图层绑定Popup弹窗
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export function bindLayerPopup() {
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graphicLayer.bindPopup(function (event) {
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const attr = event.graphic.attr || {}
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attr["类型"] = event.graphic.type
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attr["来源"] = "我是layer上绑定的Popup"
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attr["备注"] = "我支持鼠标交互"
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return mars3d.Util.getTemplateHtml({ title: "矢量图层", template: "all", attr: attr })
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})
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}
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// 绑定右键菜单
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export function bindLayerContextMenu() {
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graphicLayer.bindContextMenu([
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{
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text: "删除对象",
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icon: "fa fa-trash-o",
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show: (event) => {
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const graphic = event.graphic
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if (!graphic || graphic.isDestroy) {
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return false
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} else {
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return true
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}
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},
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callback: function (e) {
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const graphic = e.graphic
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if (!graphic) {
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return
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}
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const parent = graphic._parent // 右击是编辑点时
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graphicLayer.removeGraphic(graphic)
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if (parent) {
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graphicLayer.removeGraphic(parent)
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}
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}
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}
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])
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}
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