From 5679cbbb630092a197d991cb41997a2d953261e9 Mon Sep 17 00:00:00 2001
From: Riku <risaku@163.com>
Date: 星期三, 11 六月 2025 22:49:07 +0800
Subject: [PATCH] 动态溯源(待完成)

---
 src/utils/map/line.js |   56 +++++++++++++++++++++++++++++++++++++++++++++-----------
 1 files changed, 45 insertions(+), 11 deletions(-)

diff --git a/src/utils/map/line.js b/src/utils/map/line.js
index d2211a5..a4395dd 100644
--- a/src/utils/map/line.js
+++ b/src/utils/map/line.js
@@ -2,13 +2,15 @@
 import calculate from './calculate';
 import { getHexColor } from '../color';
 
-var _polylineArr = [];
+var defaultPolylineArr = [];
+const lineMap = new Map();
 
 function newPolyline(path, color) {
   // eslint-disable-next-line no-undef
   return new AMap.Polyline({
     path: path,
-    strokeStyle: 'solid',
+    // strokeStyle: 'solid',
+    strokeStyle: 'dashed',
     isOutline: true,
     borderWeight: 1,
     outlineColor: 'white',
@@ -19,15 +21,24 @@
   });
 }
 
+function drawDirection(path) {
+  const polyline = newPolyline(path, '#ffd82a');
+  map.add(polyline);
+  return polyline;
+}
+
 export default {
   drawLine(fDatas, factor) {
+    if (defaultPolylineArr.length > 0) {
+      map.remove(defaultPolylineArr);
+      defaultPolylineArr = [];
+    }
+
     const lnglats_GD = fDatas.lnglats_GD;
     const colors = factor.colors;
 
-    if (_polylineArr) {
-      map.remove(_polylineArr);
-      _polylineArr = [];
-    }
+    // this.hideLine();
+
     var path = calculate.parse2LngLat(lnglats_GD);
 
     let sIndex = 0;
@@ -59,7 +70,7 @@
 
         // 鍒涘缓鎶樼嚎瀹炰緥
         const polyline = newPolyline(_path, _color);
-        _polylineArr.push(polyline);
+        defaultPolylineArr.push(polyline);
       }
     }
     if (sIndex < path.length - 1) {
@@ -75,10 +86,33 @@
         })
       );
       const polyline = newPolyline(_path, _color);
-      _polylineArr.push(polyline);
+      defaultPolylineArr.push(polyline);
     }
     // 灏嗘姌绾挎坊鍔犺嚦鍦板浘瀹炰緥
-    map.add(_polylineArr);
-    return _polylineArr;
-  }
+    map.add(defaultPolylineArr);
+    return defaultPolylineArr;
+  },
+
+  drawTagLine(tag, fDatas, factor) {
+    if (lineMap.has(tag)) {
+      const _polylineArr = lineMap.get(tag);
+      map.add(_polylineArr);
+    } else {
+      const _polylineArr = this.drawLine(fDatas, factor);
+      lineMap.set(tag, _polylineArr);
+    }
+  },
+
+  hideLine(tag) {
+    if (tag && lineMap.has(tag)) {
+      const _polylineArr = lineMap.get(tag);
+      map.remove(_polylineArr);
+    } else {
+      lineMap.forEach((v) => {
+        map.remove(v);
+      });
+    }
+  },
+
+  drawDirection
 };

--
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