#Copyright(c) 2021, Hồ Văn Chương

# @chuongmep, https://chuongmep.com/

import clr

clr.AddReference('acmgd')

clr.AddReference('acdbmgd')

clr.AddReference('accoremgd')

# Import references from AutoCAD

from Autodesk.AutoCAD.Runtime import *

from Autodesk.AutoCAD.ApplicationServices import *

from Autodesk.AutoCAD.EditorInput import *

from Autodesk.AutoCAD.DatabaseServices import *

from Autodesk.AutoCAD.Geometry import *

doc = Application.DocumentManager.MdiActiveDocument

ed = doc.Editor

db = doc.Database

# Write Code Below

with doc.LockDocument():

with doc.Database as db:

with db.TransactionManager.StartTransaction() as t:

bt = t.GetObject(db.BlockTableId,OpenMode.ForRead)

btr = t.GetObject(bt[BlockTableRecord.ModelSpace],OpenMode.ForWrite)

# Do action here

pl = Polyline()

pl.AddVertexAt(0,Point2d(0.0, 0.0), 0.0, 0.0, 0.0)

pl.AddVertexAt(1,Point2d(100.0, 0.0), 0.0, 0.0, 0.0)

pl.AddVertexAt(2,Point2d(100.0, 100.0), 0.0, 0.0, 0.0)

pl.AddVertexAt(3,Point2d(0.0, 100.0), 0.0, 0.0, 0.0)

btr.AppendEntity(pl)

t.AddNewlyCreatedDBObject(pl,True)

t.Commit()