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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/**
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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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// 创建Graphic图层
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graphicLayer = new mars3d.layer.GraphicLayer()
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map.addLayer(graphicLayer)
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bindLayerEvent() // 对图层绑定相关事件
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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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addDemoGraphic1(graphicLayer)
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addDemoGraphic2(graphicLayer)
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addDemoGraphic3(graphicLayer)
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addDemoGraphic4(graphicLayer)
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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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function addDemoGraphic1(graphicLayer) {
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const primitive = new mars3d.graphic.LabelPrimitive({
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position: [116.244399, 30.920459, 573.6],
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style: {
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text: "合肥火星科技有限公司",
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font_size: 25,
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font_family: "楷体",
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color: "#003da6",
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outline: true,
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outlineColor: "#bfbfbf",
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outlineWidth: 2,
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horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
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verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
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disableDepthTestDistance: Number.POSITIVE_INFINITY // 一直显示，不被地形等遮挡(会穿过地球被透视)
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},
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attr: { remark: "示例1" }
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})
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graphicLayer.addGraphic(primitive) // primitive.addTo(graphicLayer) //另外一种写法
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// 演示对graphic的个性化处理
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initGraphicManager(primitive)
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// 转geojson
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const geojson = primitive.toGeoJSON()
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console.log("转换后的geojson", geojson)
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}
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function addDemoGraphic2(graphicLayer) {
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const primitive = new mars3d.graphic.LabelPrimitive({
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position: [116.39224, 30.902853],
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style: {
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text: "Mars3D",
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fillColor: Cesium.Color.YELLOW,
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clampToGround: true
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},
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attr: { remark: "示例2" }
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})
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graphicLayer.addGraphic(primitive) // primitive.addTo(graphicLayer) //另外一种写法
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}
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function addDemoGraphic3(graphicLayer) {
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const primitive = new mars3d.graphic.LabelPrimitive({
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position: [116.340443, 30.882935, 389.88],
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style: {
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text: "中国安徽合肥",
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fillColor: Cesium.Color.LIME,
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horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
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scaleByDistance: new Cesium.NearFarScalar(10000, 1.0, 500000, 0.1)
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},
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attr: { remark: "示例3" }
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})
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graphicLayer.addGraphic(primitive) // primitive.addTo(graphicLayer) //另外一种写法
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}
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function addDemoGraphic4(graphicLayer) {
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const primitive = new mars3d.graphic.LabelPrimitive({
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position: new mars3d.LngLatPoint(116.329102, 30.977955, 1548.6),
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style: {
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text: "火星科技Mars3D平台",
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font_size: 25,
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font_family: "楷体",
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fillColor: Cesium.Color.BLUE,
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outline: true,
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outlineColor: Cesium.Color.LIME,
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outlineWidth: 2,
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distanceDisplayCondition: new Cesium.DistanceDisplayCondition(0.0, 100000),
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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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font_size: 35
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}
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},
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attr: { remark: "示例4" }
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})
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graphicLayer.addGraphic(primitive) // primitive.addTo(graphicLayer) //另外一种写法
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}
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// 生成大数据
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export function addDemoGraphic(count) {
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count = count * 10000
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graphicLayer.clear()
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showLoading()
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const startTime = new Date().getTime()
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for (let j = 0; j < count; ++j) {
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const position = randomPoint()
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const primitive = new mars3d.graphic.LabelPrimitive({
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position: position,
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style: {
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text: "第" + j + "个",
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font_size: 18,
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font_family: "楷体",
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color: Cesium.Color.AZURE,
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outline: true,
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outlineColor: Cesium.Color.BLACK,
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outlineWidth: 2,
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horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
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verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
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pixelOffset: new Cesium.Cartesian2(0, -28) // 偏移量
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},
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tooltip: "第" + j + "个"
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})
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graphicLayer.addGraphic(primitive)
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}
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hideLoading()
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const endTime = new Date().getTime()
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// 两个时间戳相差的毫秒数
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const usedTime = (endTime - startTime) / 1000
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globalMsg("共耗时" + usedTime.toFixed(2) + "秒")
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}
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// 清除数据
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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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// 在图层级处理一些事物
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function bindLayerEvent() {
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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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/* graphicLayer.on(mars3d.EventType.mouseOver, function (event) {
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console.log("监听layer，鼠标移入了矢量对象", event)
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})
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graphicLayer.on(mars3d.EventType.mouseOut, function (event) {
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console.log("监听layer，鼠标移出了矢量对象", event)
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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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// 也可以在单个Graphic上做个性化管理及绑定操作
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function initGraphicManager(graphic) {
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// 3.在graphic上绑定监听事件
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/* graphic.on(mars3d.EventType.click, function (event) {
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console.log("监听graphic，单击了矢量对象", event)
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})
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graphic.on(mars3d.EventType.mouseOver, function (event) {
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console.log("监听graphic，鼠标移入了矢量对象", event)
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})
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graphic.on(mars3d.EventType.mouseOut, function (event) {
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console.log("监听graphic，鼠标移出了矢量对象", event)
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}) */
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// 绑定Tooltip
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// graphic.bindTooltip('我是graphic上绑定的Tooltip') //.openTooltip()
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// 绑定Popup
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const inthtml = `<table style="width: auto;">
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<tr>
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<th scope="col" colspan="2" style="text-align:center;font-size:15px;">我是graphic上绑定的Popup </th>
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</tr>
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<tr>
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<td>提示：</td>
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<td>这只是测试信息，可以任意html</td>
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</tr>
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</table>`
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graphic.bindPopup(inthtml).openPopup()
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// 绑定右键菜单
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graphic.bindContextMenu([
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{
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text: "删除对象[graphic绑定的]",
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icon: "fa fa-trash-o",
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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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graphic.remove()
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}
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}
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}
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])
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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(116.1 * 1000, 116.6 * 1000) / 1000
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const wd = random(30.8 * 1000, 31.1 * 1000) / 1000
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const height = random(1000, 9000)
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return new mars3d.LngLatPoint(jd, wd, height)
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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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