From 7dc02514ad1f7c7e781d66aebf3373391ba567eb Mon Sep 17 00:00:00 2001
From: "hyojun.choi" <chlgkwk123@nate.com>
Date: Mon, 18 Nov 2024 10:03:15 +0900
Subject: [PATCH] =?UTF-8?q?=EB=B3=B4=EC=A1=B0=EC=84=A0=20=EC=A4=91?=
 =?UTF-8?q?=EB=B3=B5=EC=83=9D=EC=84=B1=20line=20=EC=A0=9C=EA=B1=B0?=
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---
 src/hooks/roofcover/useAuxiliaryDrawing.js | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/hooks/roofcover/useAuxiliaryDrawing.js b/src/hooks/roofcover/useAuxiliaryDrawing.js
index 6e95e79c..1a0d87bd 100644
--- a/src/hooks/roofcover/useAuxiliaryDrawing.js
+++ b/src/hooks/roofcover/useAuxiliaryDrawing.js
@@ -455,9 +455,24 @@ export function useAuxiliaryDrawing(id) {
       name: 'auxiliaryLine',
     })
 
-    lineHistory.current.push(line)
+    const historyLines = [...lineHistory.current]
+
+    const hasSameLine = historyLines.some((history) => {
+      return (
+        (isSamePoint(history.startPoint, line.startPoint) && isSamePoint(history.endPoint, line.endPoint)) ||
+        (isSamePoint(history.startPoint, line.endPoint) && isSamePoint(history.endPoint, line.startPoint))
+      )
+    })
+
     mousePointerArr.current = []
     clear()
+
+    if (hasSameLine) {
+      canvas.remove(line)
+      return
+    }
+
+    lineHistory.current.push(line)
   }
 
   const mouseDown = (e) => {