From 9eda4aa834cf597cc2d51ce6ba1de66476ef5f75 Mon Sep 17 00:00:00 2001
From: "hyojun.choi" <chlgkwk123@nate.com>
Date: Tue, 29 Apr 2025 17:48:38 +0900
Subject: [PATCH] =?UTF-8?q?=EC=A0=9C=EB=8C=80=EB=A1=9C=20=EC=95=88?=
 =?UTF-8?q?=EB=82=98=EB=88=A0=EC=A7=80=EB=8A=94=20=ED=98=84=EC=83=81=20?=
 =?UTF-8?q?=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/hooks/usePolygon.js |  9 +++++++--
 src/util/canvas-util.js | 15 ++++++++++-----
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/src/hooks/usePolygon.js b/src/hooks/usePolygon.js
index 43a78eae..93659a08 100644
--- a/src/hooks/usePolygon.js
+++ b/src/hooks/usePolygon.js
@@ -754,7 +754,7 @@ export const usePolygon = () => {
   }
 
   const splitPolygonWithLines = (polygon) => {
-    polygon.set({ visible: false })
+    // polygon.set({ visible: false })
     let innerLines = [...polygon.innerLines]
 
     /*// innerLine이 세팅이 안되어있는경우 찾아서 세팅한다.
@@ -934,8 +934,9 @@ export const usePolygon = () => {
     })
 
     //polygonLines에서 divideLines를 제거하고 newLines를 추가한다.
+    newLines = newLines.filter((line) => !(Math.abs(line.startPoint.x - line.endPoint.x) < 1 && Math.abs(line.startPoint.y - line.endPoint.y) < 1))
     polygonLines = polygonLines.filter((line) => line.intersections?.length === 0)
-
+    const originPolygonLines = [...polygonLines]
     polygonLines = [...polygonLines, ...newLines]
 
     let allLines = [...polygonLines, ...innerLines]
@@ -1045,6 +1046,10 @@ export const usePolygon = () => {
       })
     })
 
+    if (startLines.length === 0) {
+      startLines = originPolygonLines
+    }
+
     // 나눠서 중복 제거된 roof return
     const newRoofs = getSplitRoofsPoints(startLines, allLines, innerLines, uniquePoints)
 
diff --git a/src/util/canvas-util.js b/src/util/canvas-util.js
index 1146afa7..9eb6e0e5 100644
--- a/src/util/canvas-util.js
+++ b/src/util/canvas-util.js
@@ -515,26 +515,31 @@ export const sortedPointLessEightPoint = (points) => {
  * @param line
  * @param point
  * @returns {boolean}
+ * @param epsilon
  */
 // 직선의 방정식.
 // 방정식은 ax + by + c = 0이며, 점의 좌표를 대입하여 계산된 값은 직선과 점 사이의 관계를 나타낸다.
-export function isPointOnLine({ x1, y1, x2, y2 }, { x, y }) {
-  /*const a = line.y2 - line.y1
+export function isPointOnLine({ x1, y1, x2, y2 }, { x, y }, epsilon = 2) {
+  const a = y2 - y1
+  const b = x1 - x2
+  const c = x2 * y1 - x1 * y2
+  return Math.abs(a * x + b * y + c) < 1000
+  /*/!*const a = line.y2 - line.y1
   const b = line.x1 - line.x2
   const c = line.x2 * line.y1 - line.x1 * line.y2
   const result = Math.abs(a * point.x + b * point.y + c) / 100
 
   // 점이 선 위에 있는지 확인
-  return result <= 10*/
+  return result <= 10*!/
   // 직선 방정식 만족 여부 확인
   const crossProduct = (y - y1) * (x2 - x1) - (x - x1) * (y2 - y1)
-  if (Math.abs(crossProduct) > 5) return false // 작은 오차 허용
+  if (Math.abs(crossProduct) > 10) return false // 작은 오차 허용
 
   // 점이 선분의 범위 내에 있는지 확인
   const withinXRange = Math.min(x1, x2) <= x && x <= Math.max(x1, x2)
   const withinYRange = Math.min(y1, y2) <= y && y <= Math.max(y1, y2)
 
-  return withinXRange && withinYRange
+  return withinXRange && withinYRange*/
 }
 /**
  * 점과 가까운 line 찾기