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+# GeoFive.Shared.CAD.Abstractions
+
+An abstraction layer for command menus in CAD applications, providing a unified mechanism for defining menu commands across CAD platforms such as AutoCAD.
+
+## Core Features
+
+- **MenuInfoAttribute**: A custom attribute used to mark CAD command methods.
+- **Reflection-based Automatic Discovery**: Supports automatic discovery and registration of menu commands via reflection.
+- **Cross-Version Compatibility**: Compatible with different versions of CAD platforms.
+
+## Installation Instructions
+
+### .NET CLI
+
+```bash
+dotnet add package GeoFive.Shared.CAD.Abstractions
+```
+
+### Package Manager Console
+
+```powershell
+Install-Package GeoFive.Shared.CAD.Abstractions
+```
+
+### csproj Reference
+
+```xml
+<PackageReference Include="GeoFive.Shared.CAD.Abstractions" Version="1.0.0" />
+```
+
+## Quick Start and Usage Guide
+
+### 1. Mark Command Methods with MenuInfoAttribute
+
+```csharp
+using GeoFive.Shared.CAD.Abstractions;
+
+public class MyCommands
+{
+    [MenuInfoAttribute("Drawing", 1, "Draw Rectangle", 1)]
+    public void DrawRectangle()
+    {
+        // Implement logic to draw a rectangle
+    }
+
+    [MenuInfoAttribute("Drawing", 1, "Draw Circle", 2)]
+    public void DrawCircle()
+    {
+        // Implement logic to draw a circle
+    }
+}
+```
+
+### 2. Automatically Discover and Register Menus via Reflection
+
+```csharp
+// Scan all command classes in the assembly and register menus
+var commandTypes = Assembly.GetExecutingAssembly()
+    .GetTypes()
+    .Where(t => t.GetMethods()
+        .Any(m => m.IsDefined(typeof(MenuInfoAttribute), false)));
+
+foreach (var type in commandTypes)
+{
+    var methods = type.GetMethods()
+        .Where(m => m.IsDefined(typeof(MenuInfoAttribute), false))
+        .Select(m => new 
+        {
+            Method = m,
+            Attr = m.GetCustomAttribute<MenuInfoAttribute>()
+        });
+
+    foreach (var method in methods)
+    {
+        Console.WriteLine($"Menu Group: {method.Attr.GroupName}, " +
+                         $"Command: {method.Attr.CommandName}, " +
+                         $"Index: {method.Attr.CommandIndex}");
+    }
+}
+```
+
+## API Overview
+
+### MenuInfoAttribute
+
+Attribute class used to mark CAD command methods.
+
+```csharp
+[AttributeUsage(AttributeTargets.Method, AllowMultiple = false)]
+public class MenuInfoAttribute : Attribute
+```
+
+#### Constructor
+
+```csharp
+public MenuInfoAttribute(string groupName, int groupIndex, string commandName, double commandIndex)
+```
+
+#### Properties
+
+| Property | Type | Description |
+|----------|------|-------------|
+| GroupName | string | Name of the menu group |
+| GroupIndex | int | Index of the menu group |
+| CommandName | string | Name of the command |
+| CommandIndex | double | Index of the command |
+
+## Supported Platforms and Ecosystem
+
+- AutoCAD
+- Other .NET-based CAD platforms
+- GIS applications
+- Custom plugin development
+
+## License
+
+This project is licensed under the MIT License. See the [LICENSE](./LICENSE) file for details.
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+# GeoFive.Shared.CAD.Abstractions
+
+CAD 应用程序的命令菜单抽象层，为 AutoCAD 等 CAD 平台提供统一的菜单命令定义机制。
+
+## 核心特性
+
+- **MenuInfoAttribute**：自定义特性，用于标记 CAD 命令方法
+- **反射自动发现**：支持通过反射自动发现和注册菜单命令
+- **跨版本兼容**：支持不同的 CAD 平台版本
+
+## 安装说明
+
+### .NET CLI
+
+```bash
+dotnet add package GeoFive.Shared.CAD.Abstractions
+```
+
+### Package Manager Console
+
+```powershell
+Install-Package GeoFive.Shared.CAD.Abstractions
+```
+
+### csproj 引用
+
+```xml
+<PackageReference Include="GeoFive.Shared.CAD.Abstractions" Version="1.0.0" />
+```
+
+## 快速上手与使用指南
+
+### 1. 使用 MenuInfoAttribute 标记命令方法
+
+```csharp
+using GeoFive.Shared.CAD.Abstractions;
+
+public class MyCommands
+{
+    [MenuInfoAttribute("绘图", 1, "绘制矩形", 1)]
+    public void DrawRectangle()
+    {
+        // 实现绘制矩形的逻辑
+    }
+
+    [MenuInfoAttribute("绘图", 1, "绘制圆形", 2)]
+    public void DrawCircle()
+    {
+        // 实现绘制圆形的逻辑
+    }
+}
+```
+
+### 2. 通过反射自动发现与注册菜单
+
+```csharp
+// 扫描程序集中的所有命令类并注册菜单
+var commandTypes = Assembly.GetExecutingAssembly()
+    .GetTypes()
+    .Where(t => t.GetMethods()
+        .Any(m => m.IsDefined(typeof(MenuInfoAttribute), false)));
+
+foreach (var type in commandTypes)
+{
+    var methods = type.GetMethods()
+        .Where(m => m.IsDefined(typeof(MenuInfoAttribute), false))
+        .Select(m => new 
+        {
+            Method = m,
+            Attr = m.GetCustomAttribute<MenuInfoAttribute>()
+        });
+
+    foreach (var method in methods)
+    {
+        Console.WriteLine($"菜单组: {method.Attr.GroupName}, " +
+                         $"命令: {method.Attr.CommandName}, " +
+                         $"索引: {method.Attr.CommandIndex}");
+    }
+}
+```
+
+## API 概览
+
+### MenuInfoAttribute
+
+用于标记 CAD 命令方法的特性类。
+
+```csharp
+[AttributeUsage(AttributeTargets.Method, AllowMultiple = false)]
+public class MenuInfoAttribute : Attribute
+```
+
+#### 构造函数
+
+```csharp
+public MenuInfoAttribute(string groupName, int groupIndex, string commandName, double commandIndex)
+```
+
+#### 属性
+
+| 属性 | 类型 | 描述 |
+|------|------|------|
+| GroupName | string | 菜单组名称 |
+| GroupIndex | int | 菜单组索引 |
+| CommandName | string | 命令名称 |
+| CommandIndex | double | 命令索引 |
+
+## 适用平台与生态
+
+- AutoCAD
+- 其他基于 .NET 的 CAD 平台
+- GIS 应用程序
+- 二次开发插件
+
+## 许可证
+
+本项目采用 MIT 许可证。详情请参阅 [LICENSE](./LICENSE) 文件。
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