From 31751c26b97bab840b87db17d7a9a96b67b52a34 Mon Sep 17 00:00:00 2001
From: "hyojun.choi" <chlgkwk123@nate.com>
Date: Wed, 30 Jul 2025 16:37:42 +0900
Subject: [PATCH] =?UTF-8?q?=EB=AA=A8=EB=93=A0=20=EC=A0=90=EC=9D=B4=20?=
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---
 src/util/qpolygon-utils.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/util/qpolygon-utils.js b/src/util/qpolygon-utils.js
index 7d234010..482693dc 100644
--- a/src/util/qpolygon-utils.js
+++ b/src/util/qpolygon-utils.js
@@ -311,8 +311,6 @@ export function removeDuplicatePolygons(polygons, hasAuxiliaryLine = false) {
   //   return isValidPoints(polygon)
   // })
 
-  console.log('uniquePolygons2', uniquePolygons)
-
   return uniquePolygons
 }
 
@@ -373,6 +371,14 @@ function checkPolygonSelfIntersection(coordinates) {
     }
   }
 
+  // 모든 점이 같은 직선상에 있는지 검사 (degenerate polygon)
+  const allSameX = coordinates.every((point) => point.x === coordinates[0].x)
+  const allSameY = coordinates.every((point) => point.y === coordinates[0].y)
+
+  if (allSameX || allSameY) {
+    return true // 직선상의 점들은 유효하지 않은 다각형이므로 true 반환
+  }
+
   const intersections = []
   const edges = []