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Get Mass Properties of Visible and Hidden Components Example (VB.NET)

This example shows how to get the mass properties for:

  • visible and hidden components in an assembly.

  • only the visible components in an assembly.

'----------------------------------------------------------------------------------
' Preconditions:
' 1. Open public_documents\samples\tutorial\routing-pipes\ball valve with flanges.sldasm.
' 2. Open the Immediate window.
'
' Postconditions:
' 1. Gets the mass properties of all components.
' 2. Hides the slip on weld flange<1> component.
' 3. Gets the mass properties of the visible components only.
' 4. Examine the Immediate window.
'
' NOTE: Because this assembly is used elsewhere, do not save changes.
'---------------------------------------------------------------------------------
Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System
Imports System.Diagnostics
 
Partial Class SolidWorksMacro
 
    Public Sub main()
 
        Dim swModel As ModelDoc2
        Dim swModelDocExt As ModelDocExtension
        Dim massStatus As Long
        Dim vMassProp As Object
        Dim boolstatus As Boolean
 
        swModel = swApp.ActiveDoc
        swModelDocExt = swModel.Extension
        Debug.Print("-------------------------------")
        Debug.Print("Mass properties of visible and hidden components:")
        vMassProp = swModelDocExt.GetMassProperties(1, massStatus)
        If Not vMassProp Is Nothing Then
            Debug.Print("  CenterOfMassX = " & vMassProp(0))
            Debug.Print("  CenterOfMassY = " & vMassProp(1))
            Debug.Print("  CenterOfMassZ = " & vMassProp(2))
            Debug.Print("  Volume = " & vMassProp(3))
            Debug.Print("  Area   = " & vMassProp(4))
            Debug.Print("  Mass   = " & vMassProp(5))
            Debug.Print("  MomXX = " & vMassProp(6))
            Debug.Print("  MomYY = " & vMassProp(7))
            Debug.Print("  MomZZ = " & vMassProp(8))
            Debug.Print("  MomXY = " & vMassProp(9))
            Debug.Print("  MomZX = " & vMassProp(10))
            Debug.Print("  MomYZ = " & vMassProp(11))
        End If
        Debug.Print("-------------------------------")
 
        ' Now hide another component
        boolstatus = swModelDocExt.SelectByID2("slip on weld flange-1@ball valve with flanges""COMPONENT", 0, 0, 0, False, 0, Nothing, 0)
        swModel.HideComponent2()
 
        Debug.Print("Mass properties of visible components only:")
        swModelDocExt.IncludeMassPropertiesOfHiddenBodies = False
        vMassProp = swModelDocExt.GetMassProperties(1, massStatus)
        If Not vMassProp Is Nothing Then
            Debug.Print("  CenterOfMassX = " & vMassProp(0))
            Debug.Print("  CenterOfMassY = " & vMassProp(1))
            Debug.Print("  CenterOfMassZ = " & vMassProp(2))
            Debug.Print("  Volume = " & vMassProp(3))
            Debug.Print("  Area   = " & vMassProp(4))
            Debug.Print("  Mass   = " & vMassProp(5))
            Debug.Print("  MomXX = " & vMassProp(6))
            Debug.Print("  MomYY = " & vMassProp(7))
            Debug.Print("  MomZZ = " & vMassProp(8))
            Debug.Print("  MomXY = " & vMassProp(9))
            Debug.Print("  MomZX = " & vMassProp(10))
            Debug.Print("  MomYZ = " & vMassProp(11))
        End If
        Debug.Print("-------------------------------")
    End Sub
 
    ''' <summary>
 
    ''' The SldWorks swApp variable is pre-assigned for you.
    ''' </summary>
    Public swApp As SldWorks
 
End Class


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