From 3432d64a3ca1a6c117d78c08245a2ee17e993dab Mon Sep 17 00:00:00 2001
From: "hyojun.choi" <chlgkwk123@nate.com>
Date: Tue, 18 Mar 2025 10:23:42 +0900
Subject: [PATCH] =?UTF-8?q?8=EA=B0=81=20=EC=95=88=EB=82=98=EB=88=A0?=
 =?UTF-8?q?=EC=A7=80=EB=8A=94=20=ED=98=84=EC=83=81=20=EC=9E=91=EC=97=85=20?=
 =?UTF-8?q?=EC=B6=94=EA=B0=80?=
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---
 src/hooks/usePolygon.js |  2 +-
 src/util/canvas-util.js | 15 ++++++++++++---
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/hooks/usePolygon.js b/src/hooks/usePolygon.js
index 54de877b..fd5b5a69 100644
--- a/src/hooks/usePolygon.js
+++ b/src/hooks/usePolygon.js
@@ -767,7 +767,7 @@ export const usePolygon = () => {
             obj.type === 'QLine' &&
             obj.attributes?.type !== 'pitchSizeLine' &&
             obj.attributes?.roofId === polygon.id &&
-            (innerLineTypes.includes(obj.name) || !obj.name),
+            innerLineTypes.includes(obj.name),
         )
 
       innerLines = [...polygon.innerLines]
diff --git a/src/util/canvas-util.js b/src/util/canvas-util.js
index 935097b0..1146afa7 100644
--- a/src/util/canvas-util.js
+++ b/src/util/canvas-util.js
@@ -518,14 +518,23 @@ export const sortedPointLessEightPoint = (points) => {
  */
 // 직선의 방정식.
 // 방정식은 ax + by + c = 0이며, 점의 좌표를 대입하여 계산된 값은 직선과 점 사이의 관계를 나타낸다.
-export function isPointOnLine(line, point) {
-  const a = line.y2 - line.y1
+export function isPointOnLine({ x1, y1, x2, y2 }, { x, y }) {
+  /*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
+
+  // 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
 }
 /**
  * 점과 가까운 line 찾기