Example #1
0
        Polyline2dHardwired()
        {
            m_db = Utils.Db.GetCurDwg();

            using (CompBldrCurSpace compBldr = new CompBldrCurSpace(m_db)) {
                compBldr.Start();
                compBldr.PushXform(Utils.Db.GetUcsMatrix(m_db));

                Polyline2d pline2d = new Polyline2d();
                pline2d.Color = Color.FromRgb(42, 184, 185);
                // polyline2d needs to be in database before the vertices
                // can be added to it. The polyline2d owns the vertices.
                compBldr.AddToDb(pline2d);

                Point3d[] pts = new Point3d[4];
                pts[0] = new Point3d(0.0, 0.0, 0.0);
                pts[1] = new Point3d(15.0, 0.0, 0.0);
                pts[2] = new Point3d(15.0, 8.0, 0.0);
                pts[3] = new Point3d(0.0, 8.0, 0.0);

                Vertex2d vertX2d;

                for (int i = 0; i < pts.Length; i++)
                {
                    vertX2d = new Vertex2d(pts[i], 0.0, 0.0, 0.0, 0.0);
                    pline2d.AppendVertex(vertX2d);
                    compBldr.Transaction.AddNewlyCreatedDBObject(vertX2d, true);
                }

                pline2d.Closed = true;
                compBldr.Commit();
            }
        }
Example #2
0
        public static ObjectId?addPolyline(List <Point3d> plist, ObjectId layerId)
        {
            try
            {
                Document acDoc   = Application.DocumentManager.MdiActiveDocument;
                Database acCurDb = acDoc.Database;

                using (Transaction tran = acCurDb.TransactionManager.StartTransaction())
                {
                    BlockTable       bt         = tran.GetObject(acCurDb.BlockTableId, OpenMode.ForRead) as BlockTable;
                    BlockTableRecord modelSpace = tran.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;
                    Polyline2d       b          = new Polyline2d();
                    ObjectId         oid        = modelSpace.AppendEntity(b);
                    for (int i = 0; i < plist.Count; i++)
                    {
                        b.AppendVertex(new Vertex2d(plist[i], 0, 0, 0, 0));
                    }
                    b.Closed = true;
                    if (layerId != ObjectId.Null)
                    {
                        b.LayerId = layerId;
                    }
                    tran.AddNewlyCreatedDBObject(b, true);
                    tran.Commit();
                    return(oid);
                }
            }
            catch (System.Exception ex)
            {
            }
            return(null);
        }
Example #3
0
        public static void TranslateCoordinates()
        {
            // 获取当前文档和数据库,启动事务
            var acDoc   = Autodesk.AutoCAD.ApplicationServices.Core.Application.DocumentManager.MdiActiveDocument;
            var acCurDb = acDoc.Database;

            using (var acTrans = acCurDb.TransactionManager.StartTransaction())
            {
                // 以读模式打开块表
                BlockTable acBlkTbl;
                acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,
                                             OpenMode.ForRead) as BlockTable;

                // 以写模式打开块表记录模型空间
                BlockTableRecord acBlkTblRec;
                acBlkTblRec = acTrans.GetObject(acBlkTbl[BlockTableRecord.ModelSpace],
                                                OpenMode.ForWrite) as BlockTableRecord;

                // 创建2D多段线
                var acPoly2d = new Polyline2d();

                // 将新对象添加到块表记录和事务
                acBlkTblRec.AppendEntity(acPoly2d);
                acTrans.AddNewlyCreatedDBObject(acPoly2d, true);

                // 先将多段线添加到块表记录,然后才能给它添加顶点
                var acPts2dPoly = new Point3dCollection();
                acPts2dPoly.Add(new Point3d(1, 1, 0));
                acPts2dPoly.Add(new Point3d(1, 2, 0));
                acPts2dPoly.Add(new Point3d(2, 2, 0));
                acPts2dPoly.Add(new Point3d(3, 2, 0));
                acPts2dPoly.Add(new Point3d(4, 4, 0));

                foreach (Point3d acPt3d in acPts2dPoly)
                {
                    var acVer2d = new Vertex2d(acPt3d, 0, 0, 0, 0);
                    acPoly2d.AppendVertex(acVer2d);
                    acTrans.AddNewlyCreatedDBObject(acVer2d, true);
                }

                // Set the normal of the 2D polyline
                acPoly2d.Normal = new Vector3d(0, 1, 2);

                // Get the first coordinate of the 2D polyline
                var      acPts3d    = new Point3dCollection();
                Vertex2d acFirstVer = null;
                foreach (ObjectId acObjIdVert in acPoly2d)
                {
                    acFirstVer = acTrans.GetObject(acObjIdVert,
                                                   OpenMode.ForRead) as Vertex2d;

                    acPts3d.Add(acFirstVer.Position);

                    break;
                }

                // Get the first point of the polyline and
                // use the elevation for the Z value
                var pFirstVer = new Point3d(acFirstVer.Position.X,
                                            acFirstVer.Position.Y,
                                            acPoly2d.Elevation);

                // Translate the OCS to WCS
                var mWPlane = Matrix3d.WorldToPlane(acPoly2d.Normal);
                var pWCSPt  = pFirstVer.TransformBy(mWPlane);

                Autodesk.AutoCAD.ApplicationServices.Core.Application.ShowAlertDialog(
                    "The first vertex has the following " +
                    "coordinates:" +
                    "\nOCS: " + pFirstVer +
                    "\nWCS: " + pWCSPt);

                // 提交事务
                acTrans.Commit();
            }
        }