NoteDetectionRefactor plan

Models/DwgDataExtractor.cs

@@ -513,56 +513,189 @@ namespace DwgExtractorManual.Models
         private (Point3d minPoint, Point3d maxPoint)? FindNoteBox(
             Transaction tran, DBText noteText, List<ObjectId> polylineIds, List<ObjectId> lineIds, HashSet<(Point3d minPoint, Point3d maxPoint)> usedBoxes)
         {
-            var notePos = noteText.Position;
-            var noteHeight = noteText.Height;
-            
-            double stableX;
-            if (noteText.HorizontalMode == TextHorizontalMode.TextLeft)
+            var allLineSegments = new List<Line>();
+            try
             {
-                stableX = noteText.Position.X;
-            }
-            else
-            {
-                stableX = noteText.AlignmentPoint.X;
-            }
+                var notePos = noteText.Position;
+                var noteHeight = noteText.Height;
 
-            // 검색 라인 정의: 안정적인 X좌표를 기준으로 하되, 약간의 오차를 허용하는 너비
-            double searchY = notePos.Y - (noteHeight * 2);
-            double searchWidth = noteHeight * 15; 
-            var searchLineStart = new Point3d(stableX - noteHeight * 2, searchY, 0); 
-            var searchLineEnd = new Point3d(stableX + searchWidth, searchY, 0);
-
-            Debug.WriteLine($"[DEBUG] 안정화된 검색 라인: ({searchLineStart.X:F2}, {searchLineStart.Y:F2}) to ({searchLineEnd.X:F2}, {searchLineEnd.Y:F2}) for NOTE at ({notePos.X:F2}, {notePos.Y:F2}) with stableX={stableX:F2}");
-
-            // 1. Polyline과 교차 확인
-            foreach (var polylineId in polylineIds)
-            {
-                using (var polyline = tran.GetObject(polylineId, OpenMode.ForRead) as Polyline)
+                // Polylines를 Line 세그먼트로 분해하여 추가
+                foreach (var polylineId in polylineIds)
                 {
-                    if (polyline == null) continue;
-
-                    if (DoesLineIntersectPolyline(searchLineStart, searchLineEnd, polyline))
+                    using (var polyline = tran.GetObject(polylineId, OpenMode.ForRead) as Polyline)
                     {
-                        var box = GetPolylineBounds(polyline);
-                        if (box.HasValue && IsValidNoteBox(box.Value, notePos, noteHeight) && !usedBoxes.Contains(box.Value))
+                        if (polyline == null) continue;
+                        var explodedEntities = new DBObjectCollection();
+                        try
                         {
-                            Debug.WriteLine($"[DEBUG] 교차하는 Polyline 박스 발견: {box.Value.minPoint} to {box.Value.maxPoint}");
-                            return box;
+                            polyline.Explode(explodedEntities);
+                            foreach (DBObject obj in explodedEntities)
+                            {
+                                if (obj is Line line)
+                                {
+                                    allLineSegments.Add(line.Clone() as Line);
+                                }
+                                obj.Dispose();
+                            }
+                        }
+                        catch (System.Exception ex)
+                        {
+                            Debug.WriteLine($"[DEBUG] Polyline 분해 중 오류: {ex.Message}");
+                        }
+                        finally
+                        {
+                            explodedEntities.Dispose();
                         }
                     }
                 }
+
+                // 기존 Line들을 추가
+                foreach (var lineId in lineIds)
+                {
+                    using (var line = tran.GetObject(lineId, OpenMode.ForRead) as Line)
+                    {
+                        if (line != null)
+                        {
+                            allLineSegments.Add(line.Clone() as Line);
+                        }
+                    }
+                }
+
+                double stableX;
+                if (noteText.HorizontalMode == TextHorizontalMode.TextLeft)
+                {
+                    stableX = noteText.Position.X;
+                }
+                else
+                {
+                    stableX = noteText.AlignmentPoint.X;
+                }
+
+                double searchY = notePos.Y - (noteHeight * 2);
+                double searchWidth = noteHeight * 15;
+                var searchLineStart = new Point3d(stableX - noteHeight * 6, searchY, 0); // 왼쪽으로 확장 (중간값)
+                var searchLineEnd = new Point3d(stableX + searchWidth, searchY, 0);
+                var searchLineEnd = new Point3d(stableX + searchWidth, searchY, 0);
+               
+                Debug.WriteLine($"[DEBUG] 확장된 통합 검색 라인: ({searchLineStart.X:F2}, {searchLineStart.Y:F2}) to ({searchLineEnd.X:F2}, {searchLineEnd.Y:F2}) for NOTE at ({notePos.X:F2}, {notePos.Y:F2})");
+
+                var intersectingLines = FindIntersectingLineSegments(allLineSegments, searchLineStart, searchLineEnd);
+                foreach (var startLine in intersectingLines)
+                {
+                    var rectangle = TraceRectangleFromLineSegments(allLineSegments, startLine, notePos, noteHeight, usedBoxes);
+                    if (rectangle.HasValue)
+                    {
+                        Debug.WriteLine($"[DEBUG] 교차하는 Line/Polyline 조합 사각형 발견: {rectangle.Value.minPoint} to {rectangle.Value.maxPoint}");
+                        return rectangle;
+                    }
+                }
+
+                return null;
+            }
+            finally
+            {
+                // 생성된 모든 Line 객체들을 Dispose
+                foreach (var line in allLineSegments)
+                {
+                    line.Dispose();
+                }
+            }
+        }
+
+        private List<Line> FindIntersectingLineSegments(List<Line> allLineSegments, Point3d searchLineStart, Point3d searchLineEnd)
+        {
+            var intersectingLines = new List<Line>();
+            foreach (var line in allLineSegments)
+            {
+                if (DoLinesIntersect(searchLineStart, searchLineEnd, line.StartPoint, line.EndPoint))
+                {
+                    intersectingLines.Add(line);
+                }
+            }
+            return intersectingLines;
+        }
+
+        private (Point3d minPoint, Point3d maxPoint)? TraceRectangleFromLineSegments(List<Line> allLineSegments, Line startLine, Point3d notePos, double noteHeight, HashSet<(Point3d minPoint, Point3d maxPoint)> usedBoxes)
+        {
+            try
+            {
+                double tolerance = noteHeight * 2.0;
+                var visitedLines = new HashSet<Line>();
+                var rectanglePoints = new List<Point3d>();
+
+                var currentPoint = startLine.StartPoint;
+                var nextPoint = startLine.EndPoint;
+                rectanglePoints.Add(currentPoint);
+                rectanglePoints.Add(nextPoint);
+                visitedLines.Add(startLine);
+
+                for (int step = 0; step < 5; step++)
+                {
+                    var findResult = FindNextConnectedLineSegment(allLineSegments, nextPoint, visitedLines, tolerance);
+                    if (findResult == null) break;
+
+                    var nextLine = findResult.Value.line;
+                    var connectionType = findResult.Value.connectionType;
+
+                    Point3d newNextPoint = (connectionType == "Start") ? nextLine.EndPoint : nextLine.StartPoint;
+
+                    rectanglePoints.Add(newNextPoint);
+                    visitedLines.Add(nextLine);
+                    nextPoint = newNextPoint;
+
+                    if (nextPoint.DistanceTo(currentPoint) < tolerance)
+                    {
+                        break;
+                    }
+                }
+
+                if (rectanglePoints.Count >= 4)
+                {
+                    var bounds = CalculateBounds(rectanglePoints);
+                    if (bounds.HasValue && IsValidNoteBox(bounds.Value, notePos, noteHeight) && !usedBoxes.Contains(bounds.Value))
+                    {
+                        return bounds;
+                    }
+                }
+                return null;
+            }
+            catch (System.Exception ex)
+            {
+                Debug.WriteLine($"[DEBUG] 통합 사각형 추적 중 오류: {ex.Message}");
+                return null;
+            }
+        }
+
+        private (Line line, string connectionType)? FindNextConnectedLineSegment(List<Line> allLineSegments, Point3d currentPoint, HashSet<Line> visitedLines, double tolerance)
+        {
+            Line bestMatch = null;
+            string bestConnectionType = null;
+            double minDistance = tolerance;
+
+            foreach (var line in allLineSegments)
+            {
+                if (visitedLines.Contains(line)) continue;
+
+                double distToStart = currentPoint.DistanceTo(line.StartPoint);
+                if (distToStart < minDistance)
+                {
+                    minDistance = distToStart;
+                    bestMatch = line;
+                    bestConnectionType = "Start";
+                }
+
+                double distToEnd = currentPoint.DistanceTo(line.EndPoint);
+                if (distToEnd < minDistance)
+                {
+                    minDistance = distToEnd;
+                    bestMatch = line;
+                    bestConnectionType = "End";
+                }
             }
 
-            // 2. Line들과 교차하여 사각형 찾기
-            var intersectingLines = FindIntersectingLines(tran, lineIds, searchLineStart, searchLineEnd);
-            foreach (var startLineId in intersectingLines)
+            if (bestMatch != null)
             {
-                var rectangle = TraceRectangleFromLine(tran, lineIds, startLineId, notePos, noteHeight);
-                if (rectangle.HasValue && !usedBoxes.Contains(rectangle.Value))
-                {
-                    Debug.WriteLine($"[DEBUG] 교차하는 Line 사각형 발견: {rectangle.Value.minPoint} to {rectangle.Value.maxPoint}");
-                    return rectangle;
-                }
+                return (bestMatch, bestConnectionType);
             }
 
             return null;
@@ -682,150 +815,7 @@ namespace DwgExtractorManual.Models
             }
         }
 
-        /// <summary>
-        /// 수평선과 교차하는 Line들을 찾습니다.
-        /// </summary>
-        private List<ObjectId> FindIntersectingLines(Transaction tran, List<ObjectId> lineIds, Point3d searchLineStart, Point3d searchLineEnd)
-        {
-            var intersectingLines = new List<ObjectId>();
-
-            foreach (var lineId in lineIds)
-            {
-                using (var line = tran.GetObject(lineId, OpenMode.ForRead) as Line)
-                {
-                    if (line == null) continue;
-
-                    if (DoLinesIntersect(searchLineStart, searchLineEnd, line.StartPoint, line.EndPoint))
-                    {
-                        intersectingLines.Add(lineId);
-                        Debug.WriteLine($"[DEBUG] 교차 Line 발견: ({line.StartPoint.X}, {line.StartPoint.Y}) to ({line.EndPoint.X}, {line.EndPoint.Y})");
-                    }
-                }
-            }
-
-            return intersectingLines;
-        }
-
-        /// <summary>
-        /// Line에서 시작하여 반시계방향으로 사각형을 추적합니다. (갭 허용)
-        /// </summary>
-        private (Point3d minPoint, Point3d maxPoint)? TraceRectangleFromLine(Transaction tran, List<ObjectId> lineIds, ObjectId startLineId, Point3d notePos, double noteHeight)
-        {
-            try
-            {
-                double tolerance = noteHeight * 2.0; // 갭 허용 오차를 Note 높이에 비례하여 설정
-                var visitedLines = new HashSet<ObjectId>();
-                var rectanglePoints = new List<Point3d>();
-
-                using (var startLine = tran.GetObject(startLineId, OpenMode.ForRead) as Line)
-                {
-                    if (startLine == null) return null;
-
-                    var currentPoint = startLine.StartPoint;
-                    var nextPoint = startLine.EndPoint;
-                    rectanglePoints.Add(currentPoint);
-                    rectanglePoints.Add(nextPoint);
-                    visitedLines.Add(startLineId);
-
-                    Debug.WriteLine($"[DEBUG] 사각형 추적 시작 (갭 허용): ({currentPoint.X:F2}, {currentPoint.Y:F2}) -> ({nextPoint.X:F2}, {nextPoint.Y:F2})");
-
-                    for (int step = 0; step < 5; step++) // 최대 5번의 연결 시도
-                    {
-                        var findResult = FindNextConnectedLine(tran, lineIds, nextPoint, visitedLines, tolerance);
-                        if (findResult == null) break;
-
-                        var nextLineId = findResult.Value.lineId;
-                        var connectionType = findResult.Value.connectionType;
-
-                        using (var nextLine = tran.GetObject(nextLineId, OpenMode.ForRead) as Line)
-                        {
-                            if (nextLine == null) break;
-
-                            Point3d newNextPoint;
-                            if (connectionType == "Start")
-                            {
-                                newNextPoint = nextLine.EndPoint;
-                            }
-                            else
-                            {
-                                newNextPoint = nextLine.StartPoint;
-                            }
-
-                            rectanglePoints.Add(newNextPoint);
-                            visitedLines.Add(nextLineId);
-                            nextPoint = newNextPoint;
-
-                            Debug.WriteLine($"[DEBUG] 다음 Line 추가 (갭 허용): {nextLine.StartPoint} -> {nextLine.EndPoint}");
-
-                            if (nextPoint.DistanceTo(currentPoint) < tolerance)
-                            {
-                                Debug.WriteLine("[DEBUG] 사각형 완성됨 (갭 허용)");
-                                break;
-                            }
-                        }
-                    }
-
-                    if (rectanglePoints.Count >= 4)
-                    {
-                        var bounds = CalculateBounds(rectanglePoints);
-                        if (bounds.HasValue && IsValidNoteBox(bounds.Value, notePos, noteHeight))
-                        {
-                            return bounds;
-                        }
-                    }
-                }
-
-                return null;
-            }
-            catch (System.Exception ex)
-            {
-                Debug.WriteLine($"[DEBUG] 사각형 추적 중 오류 (갭 허용): {ex.Message}");
-                return null;
-            }
-        }
-
-        /// <summary>
-        /// 현재 점에서 가장 가까운 연결된 다음 Line을 찾습니다. (갭 허용)
-        /// </summary>
-        private (ObjectId lineId, string connectionType)? FindNextConnectedLine(Transaction tran, List<ObjectId> lineIds, Point3d currentPoint, HashSet<ObjectId> visitedLines, double tolerance)
-        {
-            ObjectId? bestMatchId = null;
-            string? bestConnectionType = null;
-            double minDistance = tolerance;
-
-            foreach (var lineId in lineIds)
-            {
-                if (visitedLines.Contains(lineId)) continue;
-
-                using (var line = tran.GetObject(lineId, OpenMode.ForRead) as Line)
-                {
-                    if (line == null) continue;
-
-                    double distToStart = currentPoint.DistanceTo(line.StartPoint);
-                    if (distToStart < minDistance)
-                    {
-                        minDistance = distToStart;
-                        bestMatchId = lineId;
-                        bestConnectionType = "Start";
-                    }
-
-                    double distToEnd = currentPoint.DistanceTo(line.EndPoint);
-                    if (distToEnd < minDistance)
-                    {
-                        minDistance = distToEnd;
-                        bestMatchId = lineId;
-                        bestConnectionType = "End";
-                    }
-                }
-            }
-
-            if (bestMatchId.HasValue)
-            {
-                return (bestMatchId.Value, bestConnectionType);
-            }
-
-            return null;
-        }
+        
 
         /// <summary>
         /// 점들의 경계 상자를 계산합니다.

Models/ExcelDataWriter.cs

@@ -340,6 +340,14 @@ namespace DwgExtractorManual.Models
                         worksheet.Cells[row, 5] = fileName ?? "";
                         worksheet.Cells[row, 6] = noteEntity.Text ?? "";
                         
+                        // "NOTE" 타입인 경우 행 배경색 변경
+                        if (noteEntity.Type == "Note")
+                        {
+                            Excel.Range noteRowRange = worksheet.Range[worksheet.Cells[row, 1], worksheet.Cells[row, 6]];
+                            noteRowRange.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightYellow);
+                            noteRowRange.Font.Bold = true;
+                        }
+
                         Debug.WriteLine($"[DEBUG] Excel 기록: Row {row}, Order {noteEntity.SortOrder}, Type {noteEntity.Type}, Pos({noteEntity.X:F1},{noteEntity.Y:F1}), Text: '{noteEntity.Text}'");
                         row++;
                     }

NoteDetectionRefactor.md

@@ -0,0 +1,48 @@
+Project: Refactor the NOTE Content Box Detection Algorithm
+
+  1. High-Level Goal:
+  The primary objective is to replace the current, fragile "horizontal search line" algorithm in
+  Models/DwgDataExtractor.cs with a more robust and accurate method that reliably finds the content box for
+  any "NOTE" text, regardless of its position or the composition of its bounding box.
+
+  2. Core Strategy: "Vertical Ray-Casting"
+  We will implement a new algorithm that emulates how a human would visually locate the content. This
+  involves a "gradual downward scan" (or vertical ray-cast) from the NOTE's position.
+
+  3. Implementation Plan (TODO List):
+
+   * Step 1: Unify All Geometry into Line Segments
+       * Create a single helper method, GetAllLineSegments, that processes all Line and Polyline entities from
+          the drawing.
+       * This method will decompose every Polyline into its constituent Line segments.
+       * It will return a single, unified List<Line> containing every potential boundary segment in the
+         drawing.
+       * Crucially: This method must ensure all temporary Line objects created during the process are properly
+          disposed of to prevent memory leaks.
+
+   * Step 2: Implement the Ray-Casting Logic in `FindNoteBox`
+       * The FindNoteBox method will be completely rewritten.
+       * It will first call GetAllLineSegments to get the unified geometry list.
+       * It will then perform the vertical ray-cast starting from the NOTE's X-coordinate and scanning
+         downwards.
+       * It will find all horizontal lines that intersect the ray and sort them by their Y-coordinate (from
+         top to bottom).
+       * It will identify the second line in this sorted list as the top edge of the content box (the first is
+          assumed to be the NOTE's own bounding box).
+
+   * Step 3: Implement Smart Box Tracing
+       * Create a new helper method, TraceBoxFromTopLine.
+       * This method will take the identified top line segment as its starting point.
+       * It will intelligently trace the remaining three sides of the rectangle by searching the unified list
+         of line segments for the nearest connecting corners.
+       * This tracing logic must be tolerant of small gaps between the endpoints of the lines forming the box.
+
+   * Step 4: Final Cleanup
+       * Once the new ray-casting algorithm is fully implemented and validated, all of the old, obsolete
+         methods related to the previous search-line approach must be deleted to keep the code clean. This
+         includes:
+           * FindIntersectingLineSegments
+           * TraceRectangleFromLineSegments
+           * FindNextConnectedLineSegment
+           * DoesLineIntersectPolyline
+           * GetPolylineBounds