CAD二次開發（6）-用戶交互之選擇集

1. 簡單測試

測試讓選中的圖形描紅

 [CommandMethod("SeleDemo")]public void SeleDemo(){Database db = HostApplicationServices.WorkingDatabase;Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;PromptSelectionResult psr = ed.GetSelection();if (psr.Status == PromptStatus.OK){SelectionSet sSet = psr.Value;this.ChangeColor(sSet);}}private void ChangeColor(SelectionSet sSet){ObjectId[] ids = sSet.GetObjectIds();Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){for (int i = 0; i < ids.Length; i++){Entity ent = (Entity)ids[i].GetObject(OpenMode.ForWrite);ent.ColorIndex = 1;}trans.Commit();}}

在這里插入圖片描述

2. 選擇集API說明

在這里插入圖片描述

3. 案例說明

 [CommandMethod("SeleDemo")]public void SeleDemo(){Database db = HostApplicationServices.WorkingDatabase;Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;//PromptSelectionResult psr =  ed.SelectAll();TypedValue[] values = new TypedValue[]{new TypedValue((int)DxfCode.Start,"circle")};SelectionFilter filter = new SelectionFilter(values);//PromptSelectionResult psr = ed.GetSelection(filter);//if (psr.Status == PromptStatus.OK)//{//    SelectionSet sSet = psr.Value;//    this.ChangeColor(sSet);//}PromptSelectionResult psr = ed.GetSelection(filter);List<ObjectId> ids = new List<ObjectId>();if (psr.Status == PromptStatus.OK){SelectionSet sSet = psr.Value;List<Point3d> points = this.GetPoint(sSet);for (int i = 0; i <points.Count; i++){PromptSelectionResult ss1 = ed.SelectCrossingWindow(points.ElementAt(i), points.ElementAt(i));ids.AddRange(ss1.Value.GetObjectIds());}}this.ChangeColor(ids);}private List<Point3d> GetPoint(SelectionSet sSet){List<Point3d> points = new List<Point3d>();ObjectId[] ids = sSet.GetObjectIds();Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){for (int i = 0; i < ids.Length; i++){Entity ent = (Entity)ids[i].GetObject(OpenMode.ForRead);Point3d center = ((Circle)ent).Center;double radius = ((Circle)ent).Radius;points.Add(new Point3d(center.X + radius, center.Y, center.Z));}trans.Commit();}return points;}private void ChangeColor(SelectionSet sSet){ObjectId[] ids = sSet.GetObjectIds();Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){for (int i = 0; i <ids.Length; i++){Entity ent = (Entity)ids[i].GetObject(OpenMode.ForWrite);ent.ColorIndex = 1;}trans.Commit();}}private void ChangeColor(List<ObjectId> ids){Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){for (int i = 0; i < ids.Count; i++){Entity ent = (Entity)ids[i].GetObject(OpenMode.ForWrite);ent.ColorIndex = 3;}trans.Commit();}}

本文來自互聯網用戶投稿，該文觀點僅代表作者本人，不代表本站立場。本站僅提供信息存儲空間服務，不擁有所有權，不承擔相關法律責任。
如若轉載，請注明出處：http://www.pswp.cn/bicheng/16583.shtml
繁體地址，請注明出處：http://hk.pswp.cn/bicheng/16583.shtml
英文地址，請注明出處：http://en.pswp.cn/bicheng/16583.shtml

如若內容造成侵權/違法違規/事實不符，請聯系多彩編程網進行投訴反饋email:809451989@qq.com，一經查實，立即刪除！