using System;using System.Collections.Generic;using System.Text;using Autodesk.AutoCAD.ApplicationServices;using Autodesk.AutoCAD.Colors;using Autodesk.AutoCAD.DatabaseServices;using Autodesk.AutoCAD.EditorInput;using Autodesk.AutoCAD.Geometry;using Autodesk.AutoCAD.Runtime;using AsApp = Autodesk.AutoCAD.ApplicationServices.Application;using DsTM = Autodesk.AutoCAD.DatabaseServices.TransactionManager;using Autodesk.AutoCAD.GraphicsInterface;using Autodesk.AutoCAD.Interop;namespace ObjectArxNet.Test{ /**//// <summary> /// 求空间两曲线交点 /// </summary> public class Intersection { [CommandMethod("IntersectionTest")] public void IntersectionTest() { Editor m_ed = Application.DocumentManager.MdiActiveDocument.Editor; Database m_db = HostApplicationServices.WorkingDatabase; PromptEntityOptions m_peo = new PromptEntityOptions("/n请选择第一条曲线:"); PromptEntityResult m_per = m_ed.GetEntity(m_peo); if (m_per.Status != PromptStatus.OK) { return; } ObjectId m_objid1 = m_per.ObjectId; m_peo = new PromptEntityOptions("/n请选择第二条曲线:"); m_per = m_ed.GetEntity(m_peo); if (m_per.Status != PromptStatus.OK) { return; } ObjectId m_objid2 = m_per.ObjectId; using (Transaction m_tr = m_db.TransactionManager.StartTransaction()) { Curve m_cur1 = (Curve)m_tr.GetObject(m_objid1, OpenMode.ForRead); Curve m_cur2 = (Curve)m_tr.GetObject(m_objid2, OpenMode.ForRead); Point3dCollection m_ints = new Point3dCollection(); m_cur1.IntersectWith(m_cur2, Intersect.OnBothOperands, new Plane(), m_ints, 0, 0); //得出的所有交点在c1曲线上 foreach (Point3d m_pt in m_ints) { m_ed.WriteMessage("/n第一条曲线与第二条曲线交点:{0}", m_pt); } m_ed.WriteMessage("/n==="); m_ints.Clear(); m_cur2.IntersectWith(m_cur1, Intersect.OnBothOperands, new Plane(), m_ints, 0, 0); //得出的所有交点在c2曲线上 foreach (Point3d m_pt in m_ints) { m_ed.WriteMessage("/n第二条曲线与第条曲线一交点:{0}", m_pt); } m_tr.Commit(); } } }}
