From ee6c54cf8cf65ecbc28c800d345c85c0bd865373 Mon Sep 17 00:00:00 2001
From: 罗广辉 <guanghui.luo@foxmail.com>
Date: Thu, 26 Feb 2026 14:16:54 +0800
Subject: [PATCH] feat: 工单机巢只能在覆盖范围内绘制

---
 packages/utils/map/DrawPolygon.js |   38 +++++++++++++++++++++++++++++++++++++-
 1 files changed, 37 insertions(+), 1 deletions(-)

diff --git a/packages/utils/map/DrawPolygon.js b/packages/utils/map/DrawPolygon.js
index a3f6afb..2bdeeff 100644
--- a/packages/utils/map/DrawPolygon.js
+++ b/packages/utils/map/DrawPolygon.js
@@ -14,7 +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
@@ -398,6 +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
@@ -514,6 +530,12 @@
 		// 添加新的点
 		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()
@@ -726,6 +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)

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