商务网站建设步骤/武汉seo优化代理

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1. 工具类：PromptTool.cs

using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace _04用户交互
{public static partial class PromptTool{/// <summary>/// 获取点/// </summary>/// <param name="ed">命令和对象</param>/// <param name="promptStr">提示信息</param>/// <returns>PromptPointResult</returns>public static PromptPointResult GetPoint2(this Editor ed, string promptStr){//声明一个获取点的提示类PromptPointOptions ppo = new PromptPointOptions(promptStr);//使回车和空格键有效ppo.AllowNone = true;return  ed.GetPoint(ppo);}/// <summary>/// 获取点或关键字/// </summary>/// <param name="ed">命令行</param>/// <param name="promptStr">提示显示</param>/// <param name="pointBase">基准点</param>/// <param name="keyWord">关键字</param>/// <returns>PromptPointResult</returns>public static PromptPointResult GetPoint(this Editor ed, string promptStr, Point3d pointBase, params string[] keyWord){//声明一个获取点的提示类PromptPointOptions ppo = new PromptPointOptions(promptStr);//使回车和空格键有效ppo.AllowNone = true;//添加字符,使得相应的字符按键有效for (int i = 0; i < keyWord.Length; i++){ppo.Keywords.Add(keyWord[i]);}//取消系统自动的关键字显示ppo.AppendKeywordsToMessage = false;//设置基准点ppo.BasePoint = pointBase;ppo.UseBasePoint = true;ppo.UseDashedLine = false;return ed.GetPoint(ppo);}}
}

2. Demo测试

 [CommandMethod("PromptDemo")]public void PromptDemo(){Database db = HostApplicationServices.WorkingDatabase;Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;//PromptPointResult ppr =  ed.GetPoint("\n请选择一个点:");//if (ppr.Status == PromptStatus.OK)//{//    Point3d p1 = ppr.Value;//    ppr = ed.GetPoint("\n请选择第二个个点:");//    if (ppr.Status == PromptStatus.OK)//    {//        Point3d p2 = ppr.Value;//        db.AddLineToModelSpace(p1, p2);//    }//}Point3d p1 = new Point3d(0, 0, 0);Point3d p2 = new Point3d();PromptPointOptions ppo = new PromptPointOptions("请指定第一个点:");ppo.AllowNone = true;PromptPointResult ppr = GetPoint(ppo);if (ppr.Status == PromptStatus.Cancel) return;if (ppr.Status == PromptStatus.OK) p1 = ppr.Value;ppo.Message = "请指定第二个点";ppo.BasePoint = p1;ppo.UseBasePoint = true;ppr = GetPoint(ppo);if (ppr.Status == PromptStatus.Cancel) return;if (ppr.Status == PromptStatus.None) return;if (ppr.Status == PromptStatus.OK) p2 = ppr.Value;db.AddLineToModelSpace(p1, p2);}private PromptPointResult GetPoint(PromptPointOptions ppo){ppo.AllowNone = true;Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;return ed.GetPoint(ppo);}

3. 仿系统直线命令

3.1 拖曳类的引入

using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace _04用户交互
{public  class LineJig:EntityJig{private Point3d jStartPoint; //直线的起点private Point3d jEndPoint; //直线的终点private string jPromtStr; //提示信息private string[] jKeywords; //交互关键字/// <summary>/// 构造函数/// </summary>/// <param name="startPoint">起点</param>/// <param name="promtStr">提示信息</param>/// <param name="keywords">交互关键字</param>public LineJig(Point3d startPoint, string promtStr, string[] keywords): base(new Line()){jStartPoint = startPoint;((Line)Entity).StartPoint = jStartPoint;jPromtStr = promtStr;jKeywords = keywords;}protected override bool Update(){((Line)Entity).EndPoint = jEndPoint;return true;}protected override SamplerStatus Sampler(JigPrompts prompts){//声明提示信息类JigPromptPointOptions jppo = new JigPromptPointOptions(jPromtStr);//添加关键字for (int i = 0; i < jKeywords.Length; i++){jppo.Keywords.Add(jKeywords[i]);}char space = (char)32;jppo.Keywords.Add(space.ToString());//设置获取的信息类型jppo.UserInputControls = UserInputControls.Accept3dCoordinates;//取消系统自动添加的关键字提示信息jppo.AppendKeywordsToMessage = false;PromptPointResult pr = prompts.AcquirePoint(jppo);jEndPoint = pr.Value;return SamplerStatus.NoChange;}/// <summary>/// 返回图形对象/// </summary>/// <returns>Entity</returns>public Entity GetEntity(){return Entity;}}
}

3.2 测试实现

[CommandMethod("FangLine")]
public void FangLine()
{Database db = HostApplicationServices.WorkingDatabase;Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;//声明一个直线的集合对象List<ObjectId> lineList = new List<ObjectId>();//声明一个预备的对象Point3d pointStart = new Point3d(100, 100, 0);Point3d pointPre = new Point3d(100, 100, 0);PromptPointResult ppr = ed.GetPoint2("\n 指定第一个点:");if (ppr.Status == PromptStatus.Cancel) return;if (ppr.Status == PromptStatus.None) pointPre = pointStart;if (ppr.Status == PromptStatus.OK) {pointStart = ppr.Value;pointPre = pointStart;}//判断循环是否继续bool isC = true;while (isC){if (lineList.Count > 1){ppr = ed.GetPoint("\n 指定下一点或 [闭合(C)/放弃(U)]:", pointPre, new string[] { "C","U" });}else{ppr = ed.GetPoint("\n 指定下一点或 [放弃(U)]", pointPre, new string[] { "U" });}Point3d pointNext;if (ppr.Status == PromptStatus.Cancel) return;if (ppr.Status == PromptStatus.None) return;if (ppr.Status == PromptStatus.OK){pointNext = ppr.Value;lineList.Add(db.AddLineToModelSpace(pointPre, pointNext));pointPre = pointNext;}if (ppr.Status == PromptStatus.Keyword){switch (ppr.StringResult){case "U":if (lineList.Count == 0){pointStart = new Point3d(100, 100, 0);pointPre = new Point3d(100, 100, 0);ppr = ed.GetPoint2("\n 指定第一个点:");if (ppr.Status == PromptStatus.Cancel) return;if (ppr.Status == PromptStatus.None) pointPre = pointStart;if (ppr.Status == PromptStatus.OK){pointStart = ppr.Value;pointPre = pointStart;}}else if (lineList.Count > 0){int count = lineList.Count;ObjectId lId = lineList.ElementAt(count-1);pointPre = this.GetLineStartPoint(lId);lineList.RemoveAt(count-1);lId.EraseEntity();}break;case "C":lineList.Add( db.AddLineToModelSpace(pointPre, pointStart));isC = false;break;}}}}[CommandMethod("FangLine2")]
public void FangLine2()
{Database db = HostApplicationServices.WorkingDatabase;Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;//声明一个直线的集合对象List<ObjectId> lineList = new List<ObjectId>();//声明一个预备的对象Point3d pointStart = new Point3d(100, 100, 0);Point3d pointPre = new Point3d(100, 100, 0);PromptPointResult ppr = ed.GetPoint2("\n 指定第一个点:");if (ppr.Status == PromptStatus.Cancel) return;if (ppr.Status == PromptStatus.None) pointPre = pointStart;if (ppr.Status == PromptStatus.OK){pointStart = ppr.Value;pointPre = pointStart;}LineJig lineJig;PromptResult pr;//判断循环是否继续bool isC = true;while (isC){if (lineList.Count > 1){lineJig = new LineJig(pointPre, "\n 指定下一点或 [闭合(C)/放弃(U)]:", new string[] { "C", "U" });pr = ed.Drag(lineJig);}else{lineJig = new LineJig(pointPre, "\n 指定下一点或 [放弃(U)]", new string[] { "U" });pr = ed.Drag(lineJig);}if (pr.Status == PromptStatus.Cancel) return;if (pr.Status == PromptStatus.None) return;if (pr.Status == PromptStatus.OK){Line line = (Line)lineJig.GetEntity();pointPre = line.EndPoint;lineList.Add(db.AddEnityToModelSpace(line));}if (pr.Status == PromptStatus.Keyword){switch (pr.StringResult){case "U":if (lineList.Count == 0){pointStart = new Point3d(100, 100, 0);pointPre = new Point3d(100, 100, 0);ppr = ed.GetPoint2("\n 指定第一个点:");if (ppr.Status == PromptStatus.Cancel) return;if (ppr.Status == PromptStatus.None) pointPre = pointStart;if (ppr.Status == PromptStatus.OK){pointStart = ppr.Value;pointPre = pointStart;}}else if (lineList.Count > 0){int count = lineList.Count;ObjectId lId = lineList.ElementAt(count - 1);pointPre = this.GetLineStartPoint(lId);lineList.RemoveAt(count - 1);lId.EraseEntity();}break;case "C":lineList.Add(db.AddLineToModelSpace(pointPre, pointStart));isC = false;break;case  " ":isC = false;break;}}}}/// <summary>/// 获得直线的起点坐标/// </summary>/// <param name="lineId">直线对象的ObjectId</param>/// <returns></returns>private Point3d GetLineStartPoint(ObjectId lineId){Point3d startPoint;Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){Line line = (Line)lineId.GetObject(OpenMode.ForRead);startPoint = line.StartPoint;}return startPoint;}

4. 仿系统圆命令

4.1 拖曳类的引入

using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using AcDotNetTool;
namespace _04用户交互
{public  class CircleJig:EntityJig{private double jRadius;public CircleJig(Point3d center): base(new Circle()){((Circle)Entity).Center = center;}//用于更新图形对象,这个更新属性是不需要使用事务处理protected override bool Update(){//动态更新园的半径if (jRadius > 0){((Circle)Entity).Radius = jRadius;}return true;}//这个函数的作用是当鼠标在屏幕上移动时,就会被调用,实现这个函数时,一般是用它改变的门图形的属性(我们在这个类里定义的属性)protected override SamplerStatus Sampler(JigPrompts prompts){//声明jig提示信息JigPromptPointOptions jppo = new JigPromptPointOptions("\n 请指定园上的一个点");char space = (char)32; jppo.Keywords.Add("U");jppo.Keywords.Add(space.ToString());jppo.UserInputControls = UserInputControls.Accept3dCoordinates;jppo.Cursor = CursorType.RubberBand;jppo.BasePoint = ((Circle)Entity).Center;jppo.UseBasePoint = true;//获取拖拽时鼠标的位置状态PromptPointResult ppr =  prompts.AcquirePoint(jppo);jRadius = ppr.Value.GetDistanceBetweenTwoPoint(((Circle)Entity).Center);return SamplerStatus.NoChange;}public Entity GetEntity(){return Entity;}}
}

4.2 测试实现

[CommandMethod("CircleDemo")]
public void CircleDemo()
{Database db = HostApplicationServices.WorkingDatabase;Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;Point3d center = new Point3d();//double radius = 0;PromptPointResult ppr = ed.GetPoint("\n 请制定圆心:");if (ppr.Status == PromptStatus.OK){center = ppr.Value;}#region//PromptDistanceOptions pdo = new PromptDistanceOptions("\n 请指定圆上的一点:");//pdo.BasePoint = center;//pdo.UseBasePoint = true;//PromptDoubleResult pdr = ed.GetDistance(pdo);//if (pdr.Status == PromptStatus.OK)//{//    radius = pdr.Value;//}//db.AddCircleModelSpace(center, radius);#endregionCircleJig jCircle = new CircleJig(center);//PromptPointResult pr = (PromptPointResult)ed.Drag(jCircle);//if (pr.Status == PromptStatus.OK)//{//    Point3d pt = pr.Value;//    db.AddCircleModelSpace(center, pt.GetDistanceBetweenTwoPoint(center));//}PromptResult pr = ed.Drag(jCircle);if (pr.Status == PromptStatus.OK){db.AddEnityToModelSpace( jCircle.GetEntity());}
}