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| import * as mars3d from "mars3d"
|
| export let map // mars3d.Map三维地图对象
| let graphicLayer // 矢量图层对象
| let shortestPathLayer
|
| let polygonZAM
| let pointQD
| let pointZD
|
| export const mapOptions = {
| scene: {
| center: { lat: 31.871794, lng: 116.800468, alt: 57020, heading: 0, pitch: -90 }
| }
| }
|
| /**
| * 初始化地图业务，生命周期钩子函数（必须）
| * 框架在地图初始化完成后自动调用该函数
| * @param {mars3d.Map} mapInstance 地图对象
| * @returns {void} 无
| */
| export function onMounted(mapInstance) {
| map = mapInstance // 记录map
|
| // 创建矢量数据图层
| graphicLayer = new mars3d.layer.GraphicLayer()
| map.addLayer(graphicLayer)
|
| shortestPathLayer = new mars3d.layer.GraphicLayer()
| map.addLayer(shortestPathLayer)
| }
|
| /**
| * 释放当前地图业务的生命周期函数
| * @returns {void} 无
| */
| export function onUnmounted() {
| map = null
| }
|
| // 绘制障碍面
| export function drawPolygon() {
| if (polygonZAM) {
| polygonZAM.remove()
| polygonZAM = null
| }
| graphicLayer.startDraw({
| type: "polygon",
| style: {
| color: "#00ffff",
| opacity: 0.4,
| outline: true,
| outlineWidth: 1,
| outlineColor: "#ffffff"
| },
| success: (graphic) => {
| polygonZAM = graphic
| }
| })
| }
| // 绘制起点
| export function startPoint() {
| if (pointQD) {
| pointQD.remove()
| pointQD = null
| }
| graphicLayer.startDraw({
| type: "point",
| style: {
| pixelSize: 10,
| color: "red",
| label: {
| text: "起点",
| font_size: 20,
| color: "#ffffff",
| outline: true,
| outlineColor: "#000000",
| pixelOffsetY: -20
| }
| },
| success: (graphic) => {
| pointQD = graphic
| }
| })
| }
|
| // 绘制终点
| export function endPoint() {
| if (pointZD) {
| pointZD.remove()
| pointZD = null
| }
| graphicLayer.startDraw({
| type: "point",
| style: {
| pixelSize: 10,
| color: "red",
| label: {
| text: "终点",
| font_size: 20,
| color: "#ffffff",
| outline: true,
| outlineColor: "#000000",
| pixelOffsetY: -20
| }
| },
| success: (graphic) => {
| pointZD = graphic
| }
| })
| }
|
| // 计算最短路径
| export function shortestPath() {
| if (!polygonZAM) {
| globalMsg("请绘制障碍面")
| return
| }
| if (!pointQD) {
| globalMsg("请绘制起点")
| return
| }
| if (!pointZD) {
| globalMsg("请绘制终点")
| return
| }
|
| shortestPathLayer.clear()
|
| const polygon = polygonZAM.toGeoJSON() // 障碍面
| const startPoint = pointQD.toGeoJSON() // 起点
| const endPoint = pointZD.toGeoJSON() // 终点
|
| const options = {
| obstacles: polygon
| }
| const path = turf.shortestPath(startPoint, endPoint, options)
|
| const positions = path.geometry.coordinates
| const polyonLine = new mars3d.graphic.PolylineEntity({
| positions: positions,
| style: {
| color: " #55ff33"
| }
| })
| shortestPathLayer.addGraphic(polyonLine)
| }
|
| export function clearLayer() {
| polygonZAM = null
| pointQD = null
| pointZD = null
|
| graphicLayer.clear()
| shortestPathLayer.clear()
| }
|
|
