更新

ShrlAlgoToolkit.RevitAddins/Assists/DWGAssist.cs

@@ -0,0 +1,159 @@
+using ACadSharp;
+using ACadSharp.Entities;
+
+using Autodesk.Revit.DB;
+
+
+namespace ShrlAlgoToolkit.RevitAddins.Assists;
+
+public static class DWGAssist
+{
+    private static void OnNotification(object sender, ACadSharp.IO.NotificationEventArgs e) { }
+
+    /// <summary>
+    /// 获取模型中的所有实体
+    /// </summary>
+    /// <param name="doc"></param>
+    /// <returns></returns>
+    public static CadObjectCollection<Entity> GetAllEntitiesInModel(this CadDocument doc)
+    {
+        // 获取所有绘图实体所在的模型空间
+        var modelSpace = doc.BlockRecords["*Model_Space"];
+
+        // 获取模型空间中的所有实体
+        return modelSpace.Entities;
+    }
+    /// <summary>
+    /// 获取模型中的所有实体
+    /// </summary>
+    /// <param name="doc"></param>
+    /// <returns></returns>
+    public static CadObjectCollection<Entity> GetAllEntitiesInCAD(this CadDocument doc)
+    {
+        // 获取dwg中的所有实体
+        return doc.Entities;
+    }
+
+    public static List<KeyValuePair<string, XYZ>> GetTextByLayer(ImportInstance dwg, string textLayerName)
+    {
+        var keyValuePairs = new List<KeyValuePair<string, XYZ>>();
+        var dwgTransform = dwg!.GetTransform();
+        var path = dwg.GetFilePath();
+        using ACadSharp.IO.DwgReader reader = new(path);
+        var cadDocument = reader.Read();
+        var entities = cadDocument.Entities.Where(entity => (entity is MText || entity is TextEntity) && entity.Layer.Name == textLayerName);
+        foreach (var entity in entities)
+        {
+            if (entity is MText mText)
+            {
+                var loc = dwgTransform.OfPoint(new XYZ(mText.InsertPoint.X, mText.InsertPoint.Y, mText.InsertPoint.Z) / 304.8);
+                if (mText.Value.Contains(@"\f") && mText.Value.Contains(@"|b") && mText.Value.Contains(@"i0"))//多行字体编码问题
+                {
+                    var str = mText.Value.Split(';').Last().TrimEnd('}');
+                    keyValuePairs.Add(new KeyValuePair<string, XYZ>(str, loc));
+                }
+                else
+                {
+                    keyValuePairs.Add(new KeyValuePair<string, XYZ>(mText.Value, loc));
+                }
+            }
+            if (entity is TextEntity text)
+            {
+                var loc = dwgTransform.OfPoint(new XYZ(text.InsertPoint.X, text.InsertPoint.Y, text.InsertPoint.Z) / 304.8);
+                keyValuePairs.Add(new KeyValuePair<string, XYZ>(text.Value, loc));
+            }
+        }
+        return keyValuePairs;
+    }
+    public static void DwgEntitiesToNewFile(this CadDocument doc, string output)
+    {
+        /* --- 注意事项 ---
+		* ACadSharp无法写入已读的dwg/dxf文件，原因是在写dxf时文件结构有问题 *目前的解决方法是移动实体并将其保存在一个新文件中。
+		*/
+
+        //转移实体的新文件
+        CadDocument transfer = new();
+        doc.Header.Version = doc.Header.Version;
+
+        //将实体移到所创建的文件中
+        List<Entity> entities = new(doc.Entities);
+        foreach (var item in entities)
+        {
+            var e = doc.Entities.Remove(item);
+            transfer.Entities.Add(e);
+        }
+
+        //保存文件
+        ACadSharp.IO.DxfWriter.Write(output, doc, false, OnNotification);
+    }
+
+
+    /// <summary>
+    /// 读取dxf文件
+    /// </summary>
+    /// <param name="file">dxf filePath path</param>
+    /// <param name="action"></param>
+    public static CadDocument ReadDxf(string file)
+    {
+        return new ACadSharp.IO.DxfReader(file, OnNotification).Read();
+    }
+
+    /// <summary>
+    /// 读取dxg文件
+    /// </summary>
+    /// <param name="file">dwg filePath path</param>
+    /// <param name="action"></param>
+    public static CadDocument ReadDwg(string file)
+    {
+        return new ACadSharp.IO.DwgReader(file, OnNotification).Read();
+    }
+
+    /// <summary>
+    /// 写一个ascii dxf文件
+    /// </summary>
+    /// <param name="filePath"></param>
+    /// <param name="doc"></param>
+    public static void WriteAsciiDxf(this CadDocument doc, string filePath)
+    {
+        ACadSharp.IO.DxfWriter.Write(filePath, doc, false, OnNotification);
+    }
+
+    /// <summary>
+    /// 编写一个二进制的dxf文件
+    /// </summary>
+    /// <param name="filePath"></param>
+    /// <param name="doc"></param>
+    public static void WriteBinaryDxf(this CadDocument doc, string filePath)
+    {
+        ACadSharp.IO.DxfWriter.Write(filePath, doc, true, OnNotification);
+    }
+
+    /// <summary>
+    /// 获取模型中的同名所有块
+    /// </summary>
+    /// <param name="file"></param>
+    /// <param name="blockName"></param>
+    /// <returns></returns>
+    public static IEnumerable<Insert> GetInsertEntities(this CadDocument doc, string blockName)
+    {
+        //获取正在使用你要找的块的插入实例
+        return doc.Entities.OfType<Insert>().Where(e => e.Block.Name == blockName);
+    }
+
+    /// <summary>
+    /// 关于如何创建实体并将其添加到绘图中的例子
+    /// </summary>
+    public static void CreateEntities()
+    {
+        CadDocument doc = new();
+
+        ACadSharp.Entities.Point pt = new() { Location = new CSMath.XYZ(10, 10, 0) };
+
+        ACadSharp.Entities.Line line = new() { StartPoint = CSMath.XYZ.Zero, EndPoint = new CSMath.XYZ(5, 5, 0) };
+
+        doc.Entities.Add(pt);
+        doc.Entities.Add(line);
+    }
+
+
+}