Traverse Assembly at Component and Feature Levels Using Recursion Example (VBA)

This example shows how to traverse an assembly at the component and feature levels using recursion.

'--------------------------------------------------------------------------

' Preconditions: Open an assembly document containing nested subassemblies.

'

' Postconditions:

' 1. Output of the assembly traversal is shown in the Immediate Window.

' 2. The elapsed time to traverse the assembly is also shown

'    in the Immediate Window.

'---------------------------------------------------------------------------

Option Explicit

Sub TraverseFeatureFeatures(swFeat As SldWorks.Feature, nLevel As Long)

    Dim swSubFeat                   As SldWorks.Feature
    Dim swSubSubFeat                As SldWorks.Feature
    Dim swSubSubSubFeat             As SldWorks.Feature
    Dim sPadStr                     As String
    Dim i                           As Long

    For i = 0 To nLevel
        sPadStr = sPadStr + "  "
    Next i

    While Not swFeat Is Nothing
        Debug.Print sPadStr + swFeat.Name + " [" + swFeat.GetTypeName + "]"

        Set swSubFeat = swFeat.GetFirstSubFeature
        While Not swSubFeat Is Nothing
            Debug.Print sPadStr + "  " + swSubFeat.Name + " [" + swSubFeat.GetTypeName + "]"

            Set swSubSubFeat = swSubFeat.GetFirstSubFeature
            While Not swSubSubFeat Is Nothing
                Debug.Print sPadStr + "    " + swSubSubFeat.Name + " [" + swSubSubFeat.GetTypeName + "]"

                Set swSubSubSubFeat = swSubFeat.GetFirstSubFeature
                While Not swSubSubSubFeat Is Nothing
                    Debug.Print sPadStr + "      " + swSubSubSubFeat.Name + " [" + swSubSubSubFeat.GetTypeName + "]"

                    Set swSubSubSubFeat = swSubSubSubFeat.GetNextSubFeature()                    

                Wend

                Set swSubSubFeat = swSubSubFeat.GetNextSubFeature()

            Wend

            Set swSubFeat = swSubFeat.GetNextSubFeature()

        Wend

        Set swFeat = swFeat.GetNextFeature

    Wend

End Sub

Sub TraverseComponentFeatures(swComp As SldWorks.Component2, nLevel As Long)

    Dim swFeat As SldWorks.Feature    

    Set swFeat = swComp.FirstFeature
    TraverseFeatureFeatures swFeat, nLevel

End Sub

Sub TraverseComponent(swComp As SldWorks.Component2, nLevel As Long)

    Dim vChildComp                  As Variant
    Dim swChildComp                 As SldWorks.Component2
    Dim sPadStr                     As String
    Dim i                           As Long
    

    For i = 0 To nLevel - 1
        sPadStr = sPadStr + "  "
    Next i    

    vChildComp = swComp.GetChildren
    For i = 0 To UBound(vChildComp)
        Set swChildComp = vChildComp(i)        

        Debug.Print sPadStr & "+" & swChildComp.Name2 & " <" & swChildComp.ReferencedConfiguration & ">"        

        TraverseComponentFeatures swChildComp, nLevel
        TraverseComponent swChildComp, nLevel + 1

    Next i

End Sub

Sub TraverseModelFeatures(swModel As SldWorks.ModelDoc2, nLevel As Long)

    Dim swFeat As SldWorks.Feature    

    Set swFeat = swModel.FirstFeature
    TraverseFeatureFeatures swFeat, nLevel

End Sub

Sub main()

    Dim swApp                       As SldWorks.SldWorks
    Dim swModel                     As SldWorks.ModelDoc2
    Dim swConfMgr                   As SldWorks.ConfigurationManager
    Dim swConf                      As SldWorks.Configuration
    Dim swRootComp                  As SldWorks.Component2
    Dim StartTime                   As Double
    Dim FinishTime                  As Double
    Dim TotalTime                   As Double
    

    Set swApp = CreateObject("SldWorks.Application")
    Set swModel = swApp.ActiveDoc
    Set swConfMgr = swModel.ConfigurationManager
    Set swConf = swConfMgr.ActiveConfiguration
    Set swRootComp = swConf.GetRootComponent3(True)    

    StartTime = Timer ' Start time    

    Debug.Print "File = " & swModel.GetPathName    

    TraverseModelFeatures swModel, 1    

    If swModel.GetType = SwConst.swDocASSEMBLY Then
        TraverseComponent swRootComp, 1

    End If    

    FinishTime = Timer ' End time
    TotalTime = FinishTime - StartTime ' Elapsed time
    Debug.Print ("Time = " & TotalTime & " sec")
    

End Sub