using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.EditorInput;
using System.Windows.Forms;
using Autodesk.AutoCAD.Interop;
using cadApp = Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
[assembly: CommandClass(typeof(HelloWorld.Class1))]
namespace HelloWorld
{
public class Class1
{
[CommandMethod("Hello")]