From b5bbbd19cf0b3c2b7674e5ecb6c1847f0ec734e4 Mon Sep 17 00:00:00 2001
From: 罗广辉 <guanghui.luo@foxmail.com>
Date: Wed, 04 Mar 2026 16:26:29 +0800
Subject: [PATCH] feat: 贴地
---
packages/utils/map/DrawPolygon.js | 70 ++++++++++++++++++++++++++++++++++-
1 files changed, 68 insertions(+), 2 deletions(-)
diff --git a/packages/utils/map/DrawPolygon.js b/packages/utils/map/DrawPolygon.js
index 80c3518..2bdeeff 100644
--- a/packages/utils/map/DrawPolygon.js
+++ b/packages/utils/map/DrawPolygon.js
@@ -2,6 +2,7 @@
import * as turf from '@turf/turf'
import { ElMessage } from 'element-plus'
import { flyVisual, getPointPositionsHeight } from './index'
+import { MapTooltip } from './MapTooltip'
/**
* 多边形绘制与编辑工具类
@@ -13,7 +14,10 @@
* - 外部订阅/通知机制
*/
export class DrawPolygon {
- constructor() {
+ constructor(options = {}) {
+ // 设备覆盖范围列表（经纬度 + 5000m半径）
+ this.deviceList = options.deviceList || []
+ this.coverageRadius = 5000
// 图斑预览模式标记
this.isPureSpotPreview = false
// 是否删除测区
@@ -63,6 +67,8 @@
this.delPoint = this.delPoint.bind(this)
// 外部订阅者
this.listeners = []
+ // 绘制提示 tooltip
+ this.drawingTooltip = null
}
// 实体命名常量
@@ -395,6 +401,19 @@
handleLeftUp() {
if (!(this.editingMode && this.curPolygon?.positions && this.draggedEntity)) return
+ // 检查松手位置是否在设备覆盖范围内
+ if (this.isDragging && !this.isWithinDeviceCoverage(this.curPolygon.positions[this.draggedEntity?.customData.ind])) {
+ ElMessage.warning('该位置不在设备覆盖范围内，请在设备5公里范围内绘制')
+ // 回弹到拖拽前的位置
+ this.draggedEntity.position = this.currentDragPointPosition
+ this.curPolygon.positions[this.draggedEntity?.customData.ind] = this.currentDragPointPosition
+ this.isDragging = false
+ this.draggedEntity = null
+ this.enableMapControl()
+ this.rebuildMidPoints()
+ return
+ }
+
if (this.currentDragPointIsValid && this.isDragging) {
// 更新点位置
this.draggedEntity.position = this.currentDragPointPosition
@@ -430,6 +449,11 @@
const cartesian = this.viewer.scene.pickPosition(movement.endPosition)
if (!cartesian) return
+
+ // 更新绘制提示 tooltip 位置
+ if (this.drawingMode && this.drawingTooltip) {
+ this.drawingTooltip.move(movement.endPosition)
+ }
// 编辑模式下，拖拽点实时更新
if (this.editingMode && this.draggedEntity?.customData) {
@@ -507,6 +531,12 @@
const cartesian = this.viewer.scene.pickPosition(click.position)
if (!cartesian) return
+ // 检查点击位置是否在设备覆盖范围内
+ if (!this.isWithinDeviceCoverage(cartesian)) {
+ ElMessage.warning('该位置不在设备覆盖范围内，请在设备5公里范围内绘制')
+ return
+ }
+
let arr = [...this.curPolygon.positions]
arr.pop()
// 校验多边形是否自交
@@ -579,6 +609,11 @@
finishDrawing() {
this.curPolygon.positions.pop()
+ // 隐藏绘制提示
+ if (this.drawingTooltip) {
+ this.drawingTooltip.hide()
+ }
+
if (this.curPolygon.positions.length >= 3) {
this.drawingMode = false
this.editingMode = true
@@ -607,6 +642,11 @@
this.removeMenuPopup()
this.notify('getPolygonPositions', [])
this.startDrawing()
+
+ // 重新显示绘制提示
+ if (this.drawingTooltip) {
+ this.drawingTooltip.show('左键点击绘制，双击结束绘制')
+ }
}
// 删除图斑
delSpot() {
@@ -644,7 +684,7 @@
const menuItems =
type === 'polygon'
- ? [{ title: '删除测区', class: 'del-planar-polygon' }]
+ ? [{ title: '删除范围', class: 'del-planar-polygon' }]
: [{ title: '删除端点', class: 'del-planar-point' }]
menuItems.forEach(item => {
@@ -708,6 +748,20 @@
return intersections.features.length === 0
}
+
+ // 检查位置是否在任意设备的覆盖范围内（5km）
+ isWithinDeviceCoverage(cartesian) {
+ if (!this.deviceList || this.deviceList.length === 0) return true
+ const cartographic = Cesium.Cartographic.fromCartesian(cartesian)
+ const clickPoint = turf.point([Cesium.Math.toDegrees(cartographic.longitude), Cesium.Math.toDegrees(cartographic.latitude)])
+ return this.deviceList
+ .filter(item => item.latitude)
+ .some(item => {
+ const rangePoint = turf.point([item.longitude, item.latitude])
+ const distance = turf.distance(rangePoint, clickPoint, { units: 'kilometers' })
+ return distance <= 5
+ })
+ }
// 初始化已有多边形
async initPolygon(viewer, positions, isPurePreview = false) {
this.initHandler(viewer)
@@ -760,6 +814,12 @@
this.viewer = viewer
this.startDrawing()
+ // 初始化绘制提示 tooltip
+ if (!this.drawingTooltip) {
+ this.drawingTooltip = new MapTooltip(viewer)
+ this.drawingTooltip.show('左键点击绘制，双击结束绘制')
+ }
+
if (!this.handler) {
this.handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas)
@@ -807,5 +867,11 @@
this.removeEntities()
this.removeHandler()
this.enableMapControl()
+
+ // 销毁绘制提示 tooltip
+ if (this.drawingTooltip) {
+ this.drawingTooltip.destroy()
+ this.drawingTooltip = null
+ }
}
}
--
Gitblit v1.9.3