我处理闭合多边形，因此您可能需要调整代码，使其处理多个顶点
该代码偏移多段线。返回区域（如果较大或较小）也会告诉您垂直方向
- Public Function DirPolSante(polyEnt As AcadEntity) As String
- Dim OffsetObj As Variant
- Dim AreaObj As Double
- Dim AreaOffset As Double
- AreaObj = polyEnt.Area
- OffsetObj = polyEnt.Offset(0.01)
- AreaOffset = OffsetObj(0).Area
- OffsetObj(0).Delete
- If AreaOffset numBulge Then
- newbulge(numBulge - idx) = polyEnt.GetBulge(idx) * -1
-
- Else
-
- newbulge(0) = polyEnt.GetBulge(idx) * -1
-
- End If
- Next idx
-
- 'reverse the original pline
- polyEnt.Coordinates = newcoord
-
- For idx = 0 To numBulge
-
- If idx = 0 Then
- polyEnt.SetBulge (numBulge), newbulge(idx)
- Else
- polyEnt.SetBulge (idx - 1), newbulge(idx)
- End If
-
- Next idx
-
- polyEnt.Update
- End Sub
这将LW多段线转换为；二维多段线。当您必须在代码末尾使用2D多边形时，非常适合较旧的CNC程序。ACAD在LW多段线上使用Pedit做得更好（sendcommand）：
- Public Function polyentconvert(polyEnt As Object) As AcadPolyline
- Dim entity As AcadDocument
- Set entity = AutoCAD_Application.ActiveDocument
- Dim I As Integer, j As Integer, K As Integer
- If polyEnt.EntityName = "AcDbPolyline" Then
- Dim Coords As Variant
- Coords = polyEnt.Coordinates
- I = Fix((UBound(Coords) + 1) * 1.5) - 1
- ReDim Coords2(I) As Double
- j = 0
- Dim X As Double, y As Double, z As Double
- For I = LBound(Coords) To UBound(Coords) Step 2
- X = Coords(I): y = Coords(I + 1): z = 0#
- Coords2(j) = X:
- Coords2(j + 1) = y:
- Coords2(j + 2) = z:
- j = j + 3
- Next I
- Dim Coords2V As Variant
- Coords2V = Coords2
- Dim EN2 As AcadPolyline
- Set EN2 = entity.ModelSpace.AddPolyline(Coords2V)
- EN2.Closed = polyEnt.Closed
- EN2.Color = polyEnt.Color
- EN2.Linetype = polyEnt.Linetype
- EN2.Thickness = polyEnt.Thickness
- EN2.Layer = polyEnt.Layer
- Dim b As Double, w As Double, W2 As Double
- For I = 0 To UBound(Coords) Step 2
- j = I / 2
- b = polyEnt.GetBulge(j)
- polyEnt.GetWidth j, w, W2
- EN2.SetBulge j, b
- EN2.SetWidth j, w, W2
- Next I
- Dim polyentx As AcadPolyline
- Set polyentx = EN2
- polyEnt.Delete
- End If
- End Function
这段代码的大部分都可以贡献给Malcom Fernadaz。他的代码使用开放多段线。我修改了它来处理封闭的 | 
