使用.NET开发AutoCAD——C#/AutoCAD /ObjectArx/二次开发入门(二)

时间:2024-01-23 10:41:25

1开发环境配置:

1安装AutoCAD2018;

2安装VS2015;

3)安装ObjectARX 2018类库;

4)安装ObjectARX 2018 .NET开发向导(ObjectARXWizards.msi)。

2利用向导新建一个ObjectARX项目:File>NEW>project,在项目名称输入yunyou.ke.qq.com,确定。

3、确定后弹出如下对话框:

4、确定后生成项目:

向导自动添加两个类,一个继承IExtensionApplication接口,这个是dll的入口,cad会从这个类加载程序做一些初始化的操作;另外一个可以写自定义的一些cad命令

6、添加COM库的应用。

 

7、“myplugin”中补充如下的命名空间引用。

using Autodesk.AutoCAD.Windows;

using AutoCAD;//com库

8、myplugin.cs代码修改如下:

using System;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Windows;
using AutoCAD;//com库

// This line is not mandatory, but improves loading performances
[assembly: ExtensionApplication(typeof(yunyou.ke.qq.com_1.MyPlugin))]

namespace yunyou.ke.qq.com
{

    // This class is instantiated by AutoCAD once and kept alive for the 
    // duration of the session. If you don't do any one time initialization 
    // then you should remove this class.
    public class MyPlugin : IExtensionApplication
    {

        void IExtensionApplication.Initialize()
        {
            //加载dll的时候执行相关加载操作
            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
            ed.WriteMessage("\n加载 云幽学院 yunyou.ke.qq.com\n");
            load();
        }

        void IExtensionApplication.Terminate()
        {
            //这个是推出时执行
            Document doc = Application.DocumentManager.MdiActiveDocument;
            doc.LockDocument(DocumentLockMode.NotLocked, "", "", false);
        }

        private void load()
        {  
            //这里添加一个工具条,添加一个按钮绑定下面的MyCommand命令
            //这个是通过com组件实现需要引用cad的两个com组件.
            AcadMenuGroups menugroups = (AcadMenuGroups)Application.MenuGroups;
            AcadToolbar toolbar = menugroups.Item(0).Toolbars.Add("云幽学院 yunyou.ke.qq.com");
            AcadToolbarItem item = toolbar.AddToolbarButton(toolbar.Count, "MyCommand", "云幽学院MyCommand", "MyCommand\n");
            item.SetBitmaps("16x16.bmp", "32x32.bmp");
            toolbar.Dock(AcToolbarDockStatus.acToolbarDockTop);
        }
    }
}

 

7、Mycommand.cs

using System;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.EditorInput;

// This line is not mandatory, but improves loading performances
[assembly: CommandClass(typeof(yunyou.ke.qq.com_1.MyCommands))]

namespace yunyou.ke.qq.com_1
{

    // This class is instantiated by AutoCAD for each document when
    // a command is called by the user the first time in the context
    // of a given document. In other words, non static data in this class
    // is implicitly per-document!
    public class MyCommands
    {
        // Modal Command with localized name
        [CommandMethod("MyGroup", "MyCommand", "MyCommandLocal", CommandFlags.Modal)]//特性标识,标识这个是cad命令
        public void Init()
        {
            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
            ed.WriteMessage("云幽学院 yunyou.ke.qq.com\n");

        }
      }
}

10、调试,在项目属性中,设置调试->启动外部程序,指定cad的启动路径,指定工作目录为当前程序的生成目录,既可调试。这里每次调试后,都要在启动cad后,通过netload命令加载dll,避免复杂调试、用自己的程序启动AutoCAD 并加载自己开发应用程序等高级方法请见云幽学院的视频课程 yunyou.ke.qq.com 。