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Get Mass Properties using IMassProperty (VBA)

This example show how to get the mass of the selected component of an assembly.

 

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

'

' Preconditions:

' 1. Specified assembly document exists.

' 2. Open the Immediate window.

' 3. Run the macro.

'

' Postconditions: Mass of the selected component printed to
' Immediate window.

'

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

Option Explicit 
Sub main() 
Dim swApp As SldWorks.SldWorks
Dim swModelDoc As SldWorks.ModelDoc2
Dim comp As Component2
Dim compbody As Variant
Dim bodyInfo As Variant
Dim val As Double
Dim params As Variant
Dim swMass As SldWorks.MassProperty
Dim boolstatus As Boolean
Dim errors As Long
Dim warnings As Long
Set swApp = Application.SldWorks
Set swModelDoc = swApp.OpenDoc6("C:\program files\solidworks corp\solidworks\samples\tutorial\edraw\claw\claw-mechanism.sldasm", swDocASSEMBLY, swOpenDocOptions_Silent, "", errors, warnings)
boolstatus = swModelDoc.Extension.SelectByID2("collar-1@claw-mechanism", "COMPONENT", 0, 0, 0, False, 0, Nothing, swSelectOptionDefault)
Set comp = swModelDoc.SelectionManager.GetSelectedObject6(1, 0)
compbody = comp.GetBodies3(swAllBodies, bodyInfo)
Set swMass = swModelDoc.Extension.CreateMassProperty
boolstatus = swMass.AddBodies((compbody))
swMass.UseSystemUnits = False
val = swMass.mass
Debug.Print "Mass - " & val
val = swMass.Volume
Debug.Print "Volume - " & val
val = swMass.Density
Debug.Print "Density - " & val
val = swMass.SurfaceArea
Debug.Print "Surface area - " & val
params = swMass.CenterOfMass
Debug.Print "Center of mass - X: " & params(0) & " ,Y: " & params(1) & ", and Z: " & params(2)
End Sub


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