From c5aeffce02ad53eb88192e4d3ef26549d9961406 Mon Sep 17 00:00:00 2001
From: vincentlu <t1341870251@gmail.com>
Date: 星期四, 15 一月 2026 13:45:14 +0800
Subject: [PATCH] #

---
 zy-acs-manager/src/main/java/com/zy/acs/manager/core/service/LaneBuilder.java |   71 ++++++++++++++++++++++++++++++++++-
 1 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/zy-acs-manager/src/main/java/com/zy/acs/manager/core/service/LaneBuilder.java b/zy-acs-manager/src/main/java/com/zy/acs/manager/core/service/LaneBuilder.java
index 73a3fd6..7f0c2a4 100644
--- a/zy-acs-manager/src/main/java/com/zy/acs/manager/core/service/LaneBuilder.java
+++ b/zy-acs-manager/src/main/java/com/zy/acs/manager/core/service/LaneBuilder.java
@@ -164,11 +164,15 @@
         }
 
         for (String codeData : codeDataList) {
-            if (this.adjacencyCodeMap.get(codeData).size() == 2 && !visited.contains(codeData)) {
+            if (this.adjacencyCodeMap.get(codeData).size() == 2
+                    && !visited.contains(codeData)
+                    && !this.isTurnCorner(codeData)) {
                 // 妫�鏌ユ槸鍚︿负鐜矾鐨勪竴閮ㄥ垎
                 LaneDto laneDto = new LaneDto();
                 this.dfsCalcForLoop(codeData, null, laneDto, visited);
-                this.laneDtoList.add(laneDto);
+                if (!Cools.isEmpty(laneDto.getCodes())) {
+                    this.laneDtoList.add(laneDto);
+                }
             }
         }
 
@@ -189,6 +193,11 @@
     }
 
     private void dfsCalcIncludingEnd(String start, String current, LaneDto laneDto, Set<String> visited) {
+        // 濡傛灉 current 鏈韩鏄嫄瑙掞紙degree=2 涓斾笉鍏辩嚎锛夛紝涓嶅簲璇ヨ繘鍏� lane
+        if (this.isTurnCorner(current)) {
+            return;
+        }
+
         laneDto.getCodes().add(current);
         visited.add(current);
 
@@ -205,6 +214,10 @@
             if (!visited.contains(neighbor)) {
                 int degree = this.adjacencyCodeMap.get(neighbor).size();
                 if (degree == 2) {
+                    // 涓嬩竴璺冲鏋滄槸鎷愯锛氱洿鎺ュ湪鎷愯鍓嶇粓姝紝涓斾笉鎶婃嫄瑙掔畻杩� lane
+                    if (this.isTurnCorner(neighbor)) {
+                        continue;
+                    }
                     if (this.isSameDirection(current, neighbor, start)) {
                         this.dfsCalcIncludingEnd(current, neighbor, laneDto, visited);
                     }
@@ -218,6 +231,11 @@
     }
 
     private void dfsCalcForLoop(String current, String parent, LaneDto laneDto, Set<String> visited) {
+        // 鐜矾 lane锛氭嫄瑙掔偣涓嶇畻鍏� lane锛屽苟涓斿湪鎷愯鍓嶅仠姝�
+        if (this.isTurnCorner(current)) {
+            return;
+        }
+
         laneDto.getCodes().add(current);
         visited.add(current);
 
@@ -234,6 +252,10 @@
             if (!visited.contains(neighbor)) {
                 int degree = this.adjacencyCodeMap.get(neighbor).size();
                 if (degree == 2) {
+                    // 涓嬩竴璺冲鏋滄槸鎷愯锛氬湪鎷愯鍓嶇粓姝紝涓嶆妸鎷愯鍔犲叆 lane锛屼篃涓嶆爣 visited
+                    if (this.isTurnCorner(neighbor)) {
+                        continue;
+                    }
                     if (this.isSameDirection(current, neighbor, parent)) {
                         this.dfsCalcForLoop(neighbor, current, laneDto, visited);
                     }
@@ -263,6 +285,49 @@
 
         // 璁剧疆瑙掑害宸槇鍊间负3搴�
         return angleDifference < Math.toRadians(3);
+    }
+
+    private boolean isTurnCorner(String codeData) {
+        if (Cools.isEmpty(codeData)) {
+            return false;
+        }
+        List<String> neighbors = this.adjacencyCodeMap.get(codeData);
+        if (neighbors == null || neighbors.size() != 2) {
+            return false;
+        }
+
+        String n1 = neighbors.get(0);
+        String n2 = neighbors.get(1);
+
+        Code c1 = codeService.getCacheByData(n1);
+        Code c = codeService.getCacheByData(codeData);
+        Code c2 = codeService.getCacheByData(n2);
+
+        // v1 = c - c1, v2 = c2 - c
+        double v1x = c.getX() - c1.getX();
+        double v1y = c.getY() - c1.getY();
+        double v2x = c2.getX() - c.getX();
+        double v2y = c2.getY() - c.getY();
+
+        // 涓や釜鍚戦噺浠讳竴涓洪浂鍚戦噺锛氫笉鎸夋嫄瑙掑鐞�
+        double len1 = Math.hypot(v1x, v1y);
+        double len2 = Math.hypot(v2x, v2y);
+        if (len1 == 0 || len2 == 0) {
+            return false;
+        }
+
+        // 澶硅 cos = dot / (|v1||v2|)
+        double dot = v1x * v2x + v1y * v2y;
+        double cos = dot / (len1 * len2);
+
+        // 鍏辩嚎鏈変袱绉嶏細
+        // 1) 180掳锛歝os 鈮� -1锛堢洿绾胯蛋寤婏級
+        // 2) 0掳锛歝os 鈮� +1锛堣矾绾垮紓甯稿洖澶达級锛屼竴鑸篃瑙嗕负鍏辩嚎
+        // 鍙鈥滀笉鎺ヨ繎 卤1鈥濓紝灏辫鏄庝笉鍦ㄤ竴鏉$嚎涓� -> 鎷愯
+        double eps = Math.cos(Math.toRadians(3)); // 3搴﹀宸�
+        boolean nearOpposite = cos <= -eps; // 鎺ヨ繎 -1
+        boolean nearSame = cos >= eps;      // 鎺ヨ繎 +1
+        return !(nearOpposite || nearSame);
     }
 
     /**
@@ -384,4 +449,4 @@
             }
         }
     }
-}
+}
\ No newline at end of file

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