版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。 本文链接：https://blog.csdn.net/adliy_happy/article/details/78770865 using System; using System.Collections.Generic; using System.Linq; using System.Text; using Autodesk.AutoCAD.DatabaseServices; using Autodesk.AutoCAD.EditorInput; using Autodesk.AutoCAD.Geometry;
/// /// /// desc：视图操作类，缩放 /// auth：LYK /// date：2017/12/11 10:36:26 /// ///
namespace CadTool { public static class ViewTableTools { /// /// 实现视图的比例缩放 /// /// /// 缩放比例 public static void ZoomScaled(this Editor ed,double scale) { //得到当前视图 ViewTableRecord view = ed.GetCurrentView(); //修改视图的宽度和高度 view.Width /= scale; view.Height /= scale; //更新当前视图 ed.SetCurrentView(view); } /// /// 实现视图的窗口缩放 /// /// /// 窗口角点 /// 窗口角点 public static void ZoomWindow(this Editor ed,Point3d pt1,Point3d pt2) { //创建一临时的直线用于获取两点表示的范围 using (Line line = new Line(pt1,pt2)) { //获取两点表示的范围 Extents3d extents = new Extents3d(line.GeometricExtents.MinPoint, line.GeometricExtents.MaxPoint); //获取范围内的最小值点及最大值点 Point2d minPt = new Point2d(extents.MinPoint.X, extents.MinPoint.Y); Point2d maxPt = new Point2d(extents.MaxPoint.X, extents.MaxPoint.Y); //得到当前视图 ViewTableRecord view = ed.GetCurrentView(); //设置视图的中心点、高度和宽度 view.CenterPoint = minPt + (maxPt - minPt)/2; view.Height = maxPt.Y - minPt.Y; view.Width = maxPt.X - minPt.X; //更新当前视图 ed.SetCurrentView(view); } } /// /// 根据图形边界显示视图 /// /// public static void ZoomExtens(this Editor ed) { Database db = ed.Document.Database; //更新当前模型空间的范围 db.UpdateExt(true); //根据当前图形的界限范围对视图进行缩放 if (db.Extmax.X < db.Extmin.X) { Plane plane = new Plane(); Point3d pt1 = new Point3d(plane, db.Limmin); Point3d pt2 = new Point3d(plane, db.Limmax); ed.ZoomWindow(pt1,pt2); } else { ed.ZoomWindow(db.Extmin,db.Extmax); } } /// /// 根据对象的范围显示视图 /// /// /// 实体ID public static void ZoomObject(this Editor editor,ObjectId objectId) { Database db = editor.Document.Database; using (Transaction trans = db.TransactionManager.StartTransaction()) { //获取实体对象 Entity entity = trans.GetObject(objectId, OpenMode.ForRead) as Entity; if (entity == null) { return; } //根据实体的范围对视图进行缩放 Extents3d extents3 = entity.GeometricExtents; extents3.TransformBy(editor.CurrentUserCoordinateSystem.Inverse()); editor.ZoomWindow(extents3.MinPoint, extents3.MaxPoint); trans.Commit(); } } } }
———————————————— 版权声明：本文为博主「adliy_happy」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/adliy_happy/article/details/78770865
