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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
                'Automatically solve equations in sequence
                swEquationMgr.AutomaticSolveOrder = True
                Debug.Print "  Are equations automatically solved in sequence? " & swEquationMgr.AutomaticSolveOrder
            End If
            Debug.Print "No equations included with this model."
        End If
End Sub


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