objectarx小程序，求高手过目

using System;
using System.Text;
using System.Collections;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Colors;
using DBTransMan = Autodesk.AutoCAD.DatabaseServices.TransactionManager;
using AcadApp = Autodesk.AutoCAD.ApplicationServices.Application;[assembly: CommandClass(typeof(CsMgdAcad1.Commands))]namespace CsMgdAcad1
{
    /// <summary>
    /// Summary description for Commands.
    /// </summary>
    public class Commands
    {
        public double zuobiaox1, zuobiaoy1, zuobiaox2, zuobiaoy2;
        public double i1, i2, i3, i4, i5, i6;
        public double x1, y1, x2, y2;
        public ObjectId ida;
        public String u1, u2;
        public int u3;
        public LineWeight u4;
        public double x3, y3, x4, y4;
        public ObjectId idb;        public static void Erase(ObjectId id)
        {
            Database db = id.OriginalDatabase;
            using (Transaction trans = db.TransactionManager.StartTransaction())
            {
                Entity ent = (Entity)trans.GetObject(id, OpenMode.ForWrite);
                ent.Erase();
                trans.Commit();

            }
        }
        public void CreateLine(double o1, double o2, double o3, double o4, String SelectedLayer, String SelectedType, int SelectedColor, LineWeight SelectedWeight)//导入最终确定的最远的两点坐标（z默认等于0）
        {
            Database DataBase = HostApplicationServices.WorkingDatabase;
            Editor Editor = Autodesk.AutoCAD.ApplicationServices. Application.DocumentManager.MdiActiveDocument.Editor;
            using (Transaction Transaction = DataBase.TransactionManager.StartTransaction())
            {
                Line LineEntity = new Line(new Point3d(o1, o2, 0), new Point3d(o3, o4, 0));
                LineEntity.Layer = SelectedLayer;
                LineEntity.Linetype = SelectedType;
                LineEntity.ColorIndex = SelectedColor;
                LineEntity.LineWeight = SelectedWeight;
                BlockTable BlockTable = (BlockTable)Transaction.GetObject(DataBase.BlockTableId, OpenMode.ForRead, false, false);
                BlockTableRecord CurrentSpace = (BlockTableRecord)Transaction.GetObject(DataBase.CurrentSpaceId, OpenMode.ForWrite, false, false);
                CurrentSpace.AppendEntity(LineEntity);
                Transaction.AddNewlyCreatedDBObject(LineEntity, true);
                Transaction.Commit();
            }

        }
        public void DaoruZuobiao(double x1,double y1,double x2, double y2, double x3, double y3,  double x4, double y4)
        {
            //获取五个数
            double juli12, juli13, juli14, juli23, juli24, juli34, xa, ya, xb, yb;
            juli12 = (x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2);
            juli13 = (x1 - x3) * (x1 - x3) + (y1 - y3) * (y1 - y3);
            juli14 = (x1 - x4) * (x1 - x4) + (y1 - y4) * (y1 - y4);
            juli23 = (x2 - x3) * (x2 - x3) + (y2 - y3) * (y2 - y3);
            juli24 = (x2 - x4) * (x2 - x4) + (y2 - y4) * (y2 - y4);
            juli34 = (x3 - x4) * (x3 - x4) + (y3 - y4) * (y3 - y4);            i1 = juli12;
            i2 = juli13;
            i3 = juli14;
            i4 = juli23;
            i5 = juli24;
            i6 = juli34;            double[] shuzu = new double[] { juli12, juli13, juli14, juli23, juli24, juli34 };            //调用Sort方法进行排序
            double[] temp = Sort(shuzu);
            //最大距离为数组第一个数
            double Max = temp[0];
            if (Math.Abs(Max - juli12) < 0.01)
            {
                xa = x1;
                ya = y1;
                xb = x2;
                yb = y2;
                zuobiaox1 = xa;
                zuobiaox2 = xb;
                zuobiaoy1 = ya;
                zuobiaoy2 = yb;
            }
            else if (Math.Abs(Max - juli13) < 0.01)
            {
                xa = x1;
                ya = y1;
                xb = x3;
                yb = y3;
                zuobiaox1 = xa;
                zuobiaox2 = xb;
                zuobiaoy1 = ya;
                zuobiaoy2 = yb;
            }
            else if (Math.Abs(Max - juli14) < 0.01)
            {
                xa = x1;
                ya = y1;
                xb = x4;
                yb = y4;
                zuobiaox1 = xa;
                zuobiaox2 = xb;
                zuobiaoy1 = ya;
                zuobiaoy2 = yb;
            }
            else if (Math.Abs(Max - juli23) < 0.01)
            {
                xa = x2;
                ya = y2;
                xb = x3;
                yb = y3;
                zuobiaox1 = xa;
                zuobiaox2 = xb;
                zuobiaoy1 = ya;
                zuobiaoy2 = yb;
            }
            else if (Math.Abs(Max - juli24) < 0.01)
            {
                xa = x2;
                ya = y2;
                xb = x4;
                yb = y4;                zuobiaox1 = xa;
                zuobiaox2 = xb;
                zuobiaoy1 = ya;
                zuobiaoy2 = yb;
            }
            else if (Math.Abs(Max - juli34) < 0.01)
            {
                xa = x3;
                ya = y3;
                xb = x4;
                yb = y4;
                zuobiaox1 = xa;
                zuobiaox2 = xb;
                zuobiaoy1 = ya;
                zuobiaoy2 = yb;
            }
        }
        //对任意数组进行排序的方法
        public static double[] Sort(double[] number)
        {
            double[] t = number;
            double temp = 0;
            for (int i = 0; i < t.Length; i++)
            {
                for (int j = i + 1; j < t.Length; j++)
                {
                    if (t[i] < t[j])
                    {
                        temp = t[i];
                        t[i] = t[j];
                        t[j] = temp;
                    }
                }
            }
            return t;
        }
        public void SelectFirstline()
        {
            Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
            Database DataBase = HostApplicationServices.WorkingDatabase;
            using (Transaction tr = DataBase.TransactionManager.StartTransaction())
            {
                PromptEntityOptions peo = new PromptEntityOptions("选择一侧图幅中的一条线");
                ed.WriteMessage("\n");
                PromptEntityResult per = ed.GetEntity(peo);
                if (per.Status == Autodesk.AutoCAD.EditorInput.PromptStatus.OK)
                {
                    Entity ent = tr.GetObject(per.ObjectId, OpenMode.ForRead) as Entity;
                    Point3d pickPt = new Point3d(0, 0, 0);
                    Point3dCollection snapPts = new Point3dCollection();
                    IntegerCollection geomIds = new IntegerCollection();
                    geomIds.Add(0);
                    ent.GetObjectSnapPoints(ObjectSnapModes.ModeEnd, 0, pickPt, pickPt, Matrix3d.Identity, snapPts, geomIds);                    u1 = ent.Layer;
                    u2 = ent.Linetype;
                    u3 = ent.ColorIndex;
                    u4 = ent.LineWeight;                    ida = per.ObjectId;//获得ID                    x1 = snapPts[0].X;
                    y1 = snapPts[0].Y;
                    x2 = snapPts[1].X;
                    y2 = snapPts[1].Y;                    tr.Commit();
                }
            }

        }
public void SelectSecondline()
        {
            Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
            Database DataBase = HostApplicationServices.WorkingDatabase;

            using (Transaction tr = DataBase.TransactionManager.StartTransaction())
            {
                PromptEntityOptions peo = new PromptEntityOptions("选择另一侧图幅中的一条线");
                ed.WriteMessage("\n");
                PromptEntityResult per = ed.GetEntity(peo);
                if (per.Status == Autodesk.AutoCAD.EditorInput.PromptStatus.OK)
                {
                    Entity ent = tr.GetObject(per.ObjectId, OpenMode.ForRead) as Entity;
                    Point3d pickPt = new Point3d(0, 0, 0);
                    Point3dCollection snapPts = new Point3dCollection();
                    IntegerCollection geomIds = new IntegerCollection();
                    geomIds.Add(0);
                    ent.GetObjectSnapPoints(ObjectSnapModes.ModeEnd, 0, pickPt, pickPt, Matrix3d.Identity, snapPts, geomIds);                    idb = per.ObjectId;                    x3 = snapPts[0].X;
                    y3 = snapPts[0].Y;
                    x4 = snapPts[1].X;
                    y4 = snapPts[1].Y;                    tr.Commit();
                }
            }
        }        public Commands()
        {
            //
            // TODO: Add constructor logic here
            //
        }        // Define Command "AsdkCmd1"
        [CommandMethod("1")]        public void shixian()//主函数，逐一实现各个类的功能
        {
            Editor ed = AcadApp.DocumentManager.MdiActiveDocument.Editor;            SelectFirstline();
            SelectSecondline();            DaoruZuobiao(x1,y1,x2,y2,x3,y3,x4,y4);            double k1 = i1;
            double k2 = i2;
            double k3 = i3;
            double k4 = i4;
            double k5 = i5;
            double k6 = i6;            if (x3 == x4 &&x4 == y3 && y3 == y4)
            {
                ed.WriteMessage("您未点击第二条直线……");
                return;
            }
            else if (k1 * k2 * k3 * k4 * k5 == 0 && k1 * k2 * k3 * k4 * k6 == 0 && k1 * k2 * k3 * k5 * k6 == 0 && k1 * k2 * k4 * k5 * k6 == 0 && k1 * k3 * k4 * k5 * k6 == 0 && k2 * k3 * k4 * k5 * k6 == 0)
            {
                ed.WriteMessage("\n你可能两次点的是同一条直线……");
                return;
            }
            else
            {
                CreateLine(zuobiaox1,zuobiaoy1,zuobiaox2,zuobiaoy2,u1, u2, u3, u4);//调用函数在模型空间中加入直线。
                Erase(ida);
                Erase(idb);            }        }
    }
}

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objectarx小程序，求高手过目

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