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Get Centerlines in Drawing Example (VB.NET)

This example shows how to get all of the centerlines in all of the drawing views in a drawing.

' Preconditions:
' 1. Verify that the drawing document to open exists.
' 2. Open the Immediate window.
' Postconditions:
' 1. Opens the specified drawing.
' 2. Inserts a centerline annotation.
' 3. Prints the path and file name of the drawing document
'    to the Immediate window.
' 4. Iterates the sheet and drawing view, prints their names, and
'    prints the name of the centerline annotation to
'    the Immediate window.
' 5. Examine the Immediate window.
' NOTE: Because this drawing document is used elsewhere,
' do not save any changes.
Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System.Runtime.InteropServices
Imports System
Imports System.Diagnostics
Partial Class SolidWorksMacro
    Public Sub main()
        Dim swModel As ModelDoc2
        Dim swModelDocExt As ModelDocExtension
        Dim swDrawing As DrawingDoc
        Dim swView As View
        Dim swCenterLine As Centerline
        Dim swAnnotation As Annotation
        Dim status As Boolean
        Dim errors As Integer
        Dim warnings As Integer
        Dim fileName As String
        fileName = "C:\Program Files\SolidWorks Corp\SOLIDWORKS\samples\tutorial\api\cylinder20.SLDDRW"
        swModel = swApp.OpenDoc6(fileName, swDocumentTypes_e.swDocDRAWING, swOpenDocOptions_e.swOpenDocOptions_Silent, "", errors, warnings)
        swDrawing = swModel
        swModelDocExt = swModel.Extension
        status = swDrawing.ActivateView("Drawing View1")
        status = swModelDocExt.SelectByID2("cylinder20-9@Drawing View1""COMPONENT", 0, 0, 0, False, 0, Nothing, 0)
        status = swModelDocExt.SelectByID2("""FACE", 0.513454307125032, 0.454946591641617, 250.013794595267, False, 0, Nothing, 0)
        swCenterLine = swDrawing.InsertCenterLine2()
        swView = swDrawing.GetFirstView
        Debug.Print("File = " & swModel.GetPathName)
        Do While Not swView Is Nothing
            Debug.Print("  View = " + swView.GetName2)
            swCenterLine = swView.GetFirstCenterLine
            Do While Not swCenterLine Is Nothing
                swAnnotation = swCenterLine.GetAnnotation
                Debug.Print("    Name       = " & swAnnotation.GetName)
                swCenterLine = swCenterLine.GetNext
            swView = swView.GetNextView
    End Sub
    ''' <summary>
    ''' The SldWorks swApp variable is pre-assigned for you.
    ''' </summary>
    Public swApp As SldWorks
End Class

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