现在可以删除原来模板中图纸的部分了
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@ -4,6 +4,7 @@ using System.Linq;
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using System.Text.RegularExpressions;
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using Autodesk.AutoCAD.ApplicationServices;
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using Autodesk.AutoCAD.DatabaseServices;
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using Autodesk.AutoCAD.Geometry;
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using Autodesk.AutoCAD.Runtime;
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using CadParamPluging.Common;
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using CadParamPluging.Domain.Models;
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@ -18,6 +19,13 @@ namespace CadParamPluging.Cad
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private static readonly Regex MTextFormatRegex = new Regex(@"\\[A-Za-z]+[^;]*;", RegexOptions.Compiled);
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private static readonly Regex CaxaLayerRegex = new Regex(@"^CAXA\d$", RegexOptions.Compiled | RegexOptions.IgnoreCase);
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private static readonly HashSet<string> DimensionLayerNames = new HashSet<string>(StringComparer.OrdinalIgnoreCase)
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{
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"尺寸标注", "标注", "DIM", "DIMENSION", "DIMENSIONS"
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};
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public static Document CreateDocumentFromTemplate(TemplateInfo template)
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{
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var doc = Application.DocumentManager.Add(template.FilePath);
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@ -656,5 +664,253 @@ namespace CadParamPluging.Cad
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&& a.MinPoint.Y <= b.MaxPoint.Y
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&& a.MaxPoint.Y >= b.MinPoint.Y;
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}
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public sealed class RemoveOriginalDrawingResult
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{
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public int CaxaLayerErased { get; set; }
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public int DimensionLayerErased { get; set; }
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public int DimensionLayerKept { get; set; }
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public Point3d OriginalCenter { get; set; }
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public Extents3d? OriginalExtents { get; set; }
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}
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/// <summary>
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/// 删除模板中原有的图纸图形，保留右上角区域的内容（如粗糙度标注）。
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/// </summary>
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/// <param name="ctx">CAD上下文</param>
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/// <param name="topRightThreshold">右上角保留区域阈值，0.70表示X和Y都超过70%的位置</param>
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/// <returns>删除结果，包含原图形中心点位置</returns>
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public static RemoveOriginalDrawingResult RemoveTemplateOriginalDrawing(CadContext ctx, double topRightThreshold = 0.70)
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{
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if (ctx == null)
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{
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throw new ArgumentNullException(nameof(ctx));
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}
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var result = new RemoveOriginalDrawingResult();
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var db = ctx.Database;
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var tr = ctx.Transaction;
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var bt = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
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var ms = (BlockTableRecord)tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);
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var allEntities = ms.Cast<ObjectId>()
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.Select(id => tr.GetObject(id, OpenMode.ForRead, false) as Entity)
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.Where(e => e != null)
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.ToList();
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var layoutExtents = ComputeLayoutExtents(allEntities);
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var caxaExtents = ComputeCaxaLayerExtents(tr, allEntities);
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if (caxaExtents.HasValue)
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{
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result.OriginalExtents = caxaExtents;
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result.OriginalCenter = new Point3d(
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(caxaExtents.Value.MinPoint.X + caxaExtents.Value.MaxPoint.X) / 2,
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(caxaExtents.Value.MinPoint.Y + caxaExtents.Value.MaxPoint.Y) / 2,
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0);
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}
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// 使用CAXA图层范围作为图形区域，用于判断右上角
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var graphicExtents = caxaExtents ?? layoutExtents;
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foreach (var ent in allEntities)
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{
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if (ent.IsErased)
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{
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continue;
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}
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var layerName = GetLayerName(tr, ent.LayerId);
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if (IsCaxaLayer(layerName))
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{
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var entForWrite = tr.GetObject(ent.ObjectId, OpenMode.ForWrite) as Entity;
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if (entForWrite != null)
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{
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entForWrite.Erase(true);
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result.CaxaLayerErased++;
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}
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continue;
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}
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if (IsDimensionLayer(layerName) || IsDimensionEntity(ent))
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{
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// 基于CAXA图形区域判断是否在右上角
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if (graphicExtents.HasValue && IsInTopRightCorner(ent, graphicExtents.Value, topRightThreshold))
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{
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result.DimensionLayerKept++;
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continue;
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}
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var entForWrite = tr.GetObject(ent.ObjectId, OpenMode.ForWrite) as Entity;
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if (entForWrite != null)
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{
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entForWrite.Erase(true);
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result.DimensionLayerErased++;
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}
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}
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}
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return result;
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}
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private static string GetLayerName(Transaction tr, ObjectId layerId)
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{
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if (layerId.IsNull)
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{
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return string.Empty;
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}
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try
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{
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var layer = tr.GetObject(layerId, OpenMode.ForRead) as LayerTableRecord;
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return layer?.Name ?? string.Empty;
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}
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catch
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{
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return string.Empty;
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}
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}
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private static bool IsCaxaLayer(string layerName)
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{
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if (string.IsNullOrWhiteSpace(layerName))
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{
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return false;
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}
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return CaxaLayerRegex.IsMatch(layerName);
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}
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private static bool IsDimensionLayer(string layerName)
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{
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if (string.IsNullOrWhiteSpace(layerName))
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{
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return false;
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}
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return DimensionLayerNames.Contains(layerName);
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}
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private static bool IsDimensionEntity(Entity ent)
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{
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return ent is Dimension
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|| ent is RotatedDimension
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|| ent is AlignedDimension
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|| ent is RadialDimension
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|| ent is DiametricDimension
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|| ent is ArcDimension
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|| ent is OrdinateDimension
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|| ent is Leader;
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}
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private static Extents3d? ComputeLayoutExtents(IEnumerable<Entity> entities)
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{
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Extents3d? result = null;
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foreach (var ent in entities)
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{
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if (ent == null || ent.IsErased)
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{
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continue;
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}
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try
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{
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var ext = ent.GeometricExtents;
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if (result == null)
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{
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result = ext;
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}
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else
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{
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result = new Extents3d(
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new Point3d(
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Math.Min(result.Value.MinPoint.X, ext.MinPoint.X),
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Math.Min(result.Value.MinPoint.Y, ext.MinPoint.Y),
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Math.Min(result.Value.MinPoint.Z, ext.MinPoint.Z)),
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new Point3d(
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Math.Max(result.Value.MaxPoint.X, ext.MaxPoint.X),
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Math.Max(result.Value.MaxPoint.Y, ext.MaxPoint.Y),
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Math.Max(result.Value.MaxPoint.Z, ext.MaxPoint.Z)));
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}
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}
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catch
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{
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// 忽略无法获取范围的实体
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}
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}
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return result;
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}
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private static Extents3d? ComputeCaxaLayerExtents(Transaction tr, IEnumerable<Entity> entities)
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{
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Extents3d? result = null;
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foreach (var ent in entities)
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{
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if (ent == null || ent.IsErased)
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{
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continue;
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}
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var layerName = GetLayerName(tr, ent.LayerId);
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if (!IsCaxaLayer(layerName))
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{
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continue;
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}
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try
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{
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var ext = ent.GeometricExtents;
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if (result == null)
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{
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result = ext;
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}
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else
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{
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result = new Extents3d(
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new Point3d(
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Math.Min(result.Value.MinPoint.X, ext.MinPoint.X),
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Math.Min(result.Value.MinPoint.Y, ext.MinPoint.Y),
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Math.Min(result.Value.MinPoint.Z, ext.MinPoint.Z)),
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new Point3d(
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Math.Max(result.Value.MaxPoint.X, ext.MaxPoint.X),
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Math.Max(result.Value.MaxPoint.Y, ext.MaxPoint.Y),
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Math.Max(result.Value.MaxPoint.Z, ext.MaxPoint.Z)));
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}
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}
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catch
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{
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// 忽略
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}
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}
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return result;
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}
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private static bool IsInTopRightCorner(Entity ent, Extents3d layoutExtents, double threshold)
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{
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try
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{
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var ext = ent.GeometricExtents;
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var centerX = (ext.MinPoint.X + ext.MaxPoint.X) / 2;
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var centerY = (ext.MinPoint.Y + ext.MaxPoint.Y) / 2;
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var layoutWidth = layoutExtents.MaxPoint.X - layoutExtents.MinPoint.X;
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var layoutHeight = layoutExtents.MaxPoint.Y - layoutExtents.MinPoint.Y;
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var thresholdX = layoutExtents.MinPoint.X + layoutWidth * threshold;
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var thresholdY = layoutExtents.MinPoint.Y + layoutHeight * threshold;
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return centerX > thresholdX && centerY > thresholdY;
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}
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catch
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{
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return true;
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}
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}
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}
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}
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@ -612,6 +612,10 @@ namespace CadParamPluging.UI
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}
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}
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// 删除模板中原有的图纸图形（CAXA图层和尺寸标注，保留右上角）
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var removeResult = TemplateDrawingService.RemoveTemplateOriginalDrawing(ctx);
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AppendLog($"已删除原有图形: CAXA图层={removeResult.CaxaLayerErased}, 标注={removeResult.DimensionLayerErased}, 保留右上角={removeResult.DimensionLayerKept}");
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// 根据模板参数绘制半剖视图
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HalfSectionDrawer.Draw(
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ctx,
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