Python SolidWorks secondary development---Four ways of traversing components in SolidWorks (1)

Python SolidWorks secondary development—SolidWorks four ways to traverse components (1)

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Preface

The traversal of components is mainly to facilitate subsequent operations on components, such as property modification of batch components, equation modification, etc. Here are four traversal methods that come with SolidWorks. This article introduces the first traversal method.

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1. Official sample traversal code

In the SolidWorks official API help file, search for "Traverse Assembly at Component Level Example" to find specific sample code. The detailed sample code is as follows:

Option Explicit
Sub TraverseComponent _
(swComp As SldWorks.Component2, nLevel As Long)
    Dim vChildComp As Variant
    Dim swChildComp As SldWorks.Component2
    Dim swCompConfig As SldWorks.Configuration
    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)
        TraverseComponent swChildComp, nLevel + 1
        Debug.Print sPadStr & swChildComp.Name2 & " <" & swChildComp.ReferencedConfiguration & ">"
    Next i
End Sub
Sub main()
    Dim swApp As SldWorks.SldWorks
    Dim swModel As SldWorks.ModelDoc2
    Dim swAssy As SldWorks.AssemblyDoc
    Dim swConf As SldWorks.Configuration
    Dim swRootComp As SldWorks.Component2
    Dim bRet As Boolean
    Dim fileName As String
    Dim errors As Long
    Dim warnings As Long
    Set swApp = CreateObject("SldWorks.Application")   
    Set swModel = swApp.ActiveDoc
    Set swConf = swModel.GetActiveConfiguration
    Set swRootComp = swConf.GetRootComponent3(True)
    Debug.Print "File = " & swModel.GetPathName
    ' Traverse components
    TraverseComponent swRootComp, 1
End Sub

2. Python traversal code

To facilitate subsequent comparison, the functions of the Python code and the functions of the VBA code remain the same and will not be deleted. The following is an example of the Python code:

import win32com.client
import pythoncom
from swconst import constants

def TraverseComponent(swComp, nLevel):
    sPadStr=''
    for i in range(nLevel-1):
        sPadStr = sPadStr + "  "

    vChildComp = swComp.GetChildren
    for i in range(len(vChildComp)):
        swChildComp = vChildComp[i]
        TraverseComponent(swChildComp, nLevel + 1)
        print(f'{
      
      sPadStr}{
      
      swChildComp.Name2} " <" {
      
      swChildComp.ReferencedConfiguration} ">"')

def main():
    sldver=2018
    swApp=win32com.client.Dispatch(f'SldWorks.Application.{
      
      sldver-1992}')
    swApp.CommandInProgress =True
    swApp.Visible =True
    swModel = swApp.ActiveDoc
    swConf = swModel.GetActiveConfiguration
    swRootComp = swConf.GetRootComponent3(True)
    print(f"File = {
      
      swModel.GetPathName}" )
    # ' Traverse components
    TraverseComponent(swRootComp, 1)

if __name__ == '__main__':
    main()