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Automatically Solve Equations in Sequence (VBA)

This example shows how to automatically sequence the equations in an order determined by SOLIDWORKS to produce accurate results.

'-----------------------------------------------------
' Preconditions:
' 1. Model document specified to open exists.
' 2. Open the Immediate window.
'
' Postconditions:
' 1. The equation's Automatic solve order option
'    is set to true, which results in the model's
'    independent equations executing before
'    dependent equations, if any.
' 2. Examine the Immediate window to verify.
'
' NOTE: Because this model is used elsewhere,
' do save any changes when closing it.
'-----------------------------------------------------
Option Explicit
Dim swApp As SldWorks.SldWorks
Dim swModel As SldWorks.ModelDoc2
Dim swEquationMgr As SldWorks.EquationMgr
Dim fileName As String
Dim errors As Long, warnings As Long
Sub main()
    Set swApp = Application.SldWorks
    fileName = "C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\samples\tutorial\api\partEquations.sldprt"
    Set swModel = swApp.OpenDoc6(fileName, swDocumentTypes_e.swDocPART, swOpenDocOptions_e.swOpenDocOptions_Silent, "", errors, warnings)
    Set swEquationMgr = swModel.GetEquationMgr
    'Make sure that this model includes equations
    'by getting the number of equations
    Debug.Print "Number of equations: " & swEquationMgr.GetCount
        If swEquationMgr.GetCount >= 1 Then
            'Get whether equations are automatically
            'solved in sequence
            Debug.Print "  Are equations automatically solved in sequence? " & swEquationMgr.AutomaticSolveOrder
            If swEquationMgr.AutomaticSolveOrder Then
                Exit Sub
            Else
                'Automatically solve equations in sequence
                swEquationMgr.AutomaticSolveOrder = True
                Debug.Print "  Are equations automatically solved in sequence? " & swEquationMgr.AutomaticSolveOrder
            End If
        Else
            Debug.Print "No equations included with this model."
        End If
End Sub

 



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