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查法人信息的网站,网站链接提交,网络调查问卷怎么制作,京东短链接生成器这个是关于AutoCAD二次开发模拟步骤效果，将块图形更新到与鼠标最为接近的点。注意该代码中已经将创建线段的两个点坐标已经写死了，大家可以尝试着写入动态的点，即鼠标选择的点，然后将图形更新到数据库图形空间中。这里涉及到块的名…

这个是关于AutoCAD二次开发模拟步骤效果，将块图形更新到与鼠标最为接近的点。注意该代码中已经将创建线段的两个点坐标已经写死了，大家可以尝试着写入动态的点，即鼠标选择的点，然后将图形更新到数据库图形空间中。这里涉及到块的名字预先是固定了的，如果是换成其他名字，那么，对于该程序将是行不通的，当然也可以按照需要输入块的名字，然后选择图形。

实现代码如下：

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace JigBetweenTwoPoint
{public class Class1{[CommandMethod("TEST")]public static void Test() {Document doc = Application.DocumentManager.MdiActiveDocument;Database db = doc.Database;Editor ed = doc.Editor;using (Transaction trans = db.TransactionManager.StartTransaction()){BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);if (!bt.Has("chkj")){return;}using (BlockReference br = new BlockReference(Point3d.Origin, bt["chkj"])){br.TransformBy(ed.CurrentUserCoordinateSystem);var jig = new BlockJig(br, Point3d.Origin, new Point3d(10.0, 0.0, 0.0));var pr = ed.Drag(jig);if (pr.Status == PromptStatus.OK){var curSpace = (BlockTableRecord)trans.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);curSpace.AppendEntity(br);trans.AddNewlyCreatedDBObject(br, true);}}trans.Commit();}}}class BlockJig : EntityJig{BlockReference br;LineSegment3d line;Point3d dragPt;public BlockJig(BlockReference br, Point3d pt1, Point3d pt2): base(br){this.br = br;line = new LineSegment3d(pt1, pt2);}protected override SamplerStatus Sampler(JigPrompts prompts){JigPromptPointOptions options = new JigPromptPointOptions("\nInsertion point: ");options.UserInputControls =UserInputControls.Accept3dCoordinates |UserInputControls.UseBasePointElevation;var result = prompts.AcquirePoint(options);if (result.Value.IsEqualTo(dragPt)){return SamplerStatus.NoChange;}dragPt = result.Value;return SamplerStatus.OK;}protected override bool Update(){br.Position = line.GetClosestPointTo(dragPt).Point;return true;}}
}

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