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 // 图层
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let dynamicRiver // 最后一个河流对象
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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: 30.422407, lng: 115.820222, alt: 3498, heading: 67, pitch: -32 },
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globe: {
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depthTestAgainstTerrain: true
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}
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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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// 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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// 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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dynamicRiver = new mars3d.graphic.DynamicRiver({
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positions: [
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[115.906607, 30.441582, 555.9],
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[115.899964, 30.438543, 467.3],
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[115.893105, 30.440714, 374.6],
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[115.88362, 30.443924, 340.7],
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[115.873948, 30.444827, 299],
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[115.864003, 30.442111, 292.2],
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[115.850741, 30.438108, 189.9]
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],
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style: {
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image: "./img/textures/poly-rivers.png",
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width: 280,
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height: 30,
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speed: 10
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}
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})
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graphicLayer.addGraphic(dynamicRiver)
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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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clear()
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}
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// 绘制河流
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export function drawLine(width, height, speed) {
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map.graphicLayer.startDraw({
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type: "polyline",
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style: {
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color: "#55ff33",
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width: 3
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},
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success: (graphic) => {
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const points = graphic.points
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console.log(JSON.stringify(graphic.coordinates)) // 打印下边界
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graphic.remove() // 删除绘制的线
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dynamicRiver = new mars3d.graphic.DynamicRiver({
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positions: points,
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style: {
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image: "./img/textures/poly-rivers.png",
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width: width,
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height: height,
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speed: speed
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}
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})
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graphicLayer.addGraphic(dynamicRiver)
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}
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})
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}
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// 宽发生改变
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export function widthChange(value) {
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if (dynamicRiver) {
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dynamicRiver.width = value
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}
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}
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// 高发生改变
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export function heightChange(value) {
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if (dynamicRiver) {
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dynamicRiver.height = value
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}
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}
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// 速度发生改变
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export function speedChange(value) {
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if (dynamicRiver) {
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dynamicRiver.speed = value
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}
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}
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let onOff = true
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// 升高30米动画
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export function addHeight() {
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if (!dynamicRiver) {
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return
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}
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if (!onOff) {
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globalMsg("上次操作未完成")
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return
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}
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dynamicRiver.offsetHeight(30, 5) // 5秒内抬高30米
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throttle()
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}
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// 下降30米动画
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export function lowerHeight() {
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if (!dynamicRiver) {
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return
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}
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if (!onOff) {
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globalMsg("上次操作未完成")
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return
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}
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dynamicRiver.offsetHeight(-30, 5) // 5秒内降低30米
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throttle()
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}
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function throttle() {
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setTimeout(() => {
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onOff = true
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}, 2000)
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onOff = false
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}
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// 清除
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export function clear() {
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graphicLayer.clear()
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dynamicRiver = null
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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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