Hide Table of Contents

Get and Override Mass Properties Example (VB.NET)

This example shows how to get and override some mass properties of a part.

'-----------------------------------------------------------------------
' Preconditions:
' 1. Ensure the specified document exists.
' 2. Open the Immediate window.
'
' Postconditions: Inspect the Immediate window for the mass properties of
' the part.
'----------------------------------------------------------------------
Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System.Runtime.InteropServices
Imports System
Imports System.Diagnostics

Partial Class SolidWorksMacro

    
Dim Extn As ModelDocExtension
    
Dim MyMassProp As MassProperty
    
Dim swModelDoc As ModelDoc2
    
Dim pmoi As Object
    Dim vValue As Object
    Dim com As Object
    Dim value(2) As Double
    Dim errors As Integer
    Dim warnings As Integer
    Dim val As Double
    Dim params As Object

    Sub main()

        swModelDoc = swApp.OpenDoc6(
"c:\Program Files\SolidWorks Corp\SolidWorks\samples\tutorial\api\MassPropertiesDemo.sldprt", swDocumentTypes_e.swDocPART, swOpenDocOptions_e.swOpenDocOptions_Silent, "", errors, warnings)
        Extn = swModelDoc.Extension

        
' Create mass properties
        MyMassProp = Extn.CreateMassProperty

        
' Use document property units (MKS)
        MyMassProp.UseSystemUnits = False

        val = MyMassProp.Volume
        Debug.Print(
"Volume: " & val)
        val = MyMassProp.Density
        Debug.Print(
"Density: " & val)
        val = MyMassProp.SurfaceArea
        Debug.Print(
"Surface area: " & val)

        Debug.Print(
"")
        Debug.Print(
"OverrideMass property is set to " & MyMassProp.OverrideMass)
        Debug.Print(
"Mass is overridden? " & MyMassProp.SetOverrideMassValue(100, swInConfigurationOpts_e.swThisConfiguration, Nothing))
        val = MyMassProp.Mass
        Debug.Print(
"Mass: " & val)
        Debug.Print(
"")

        Debug.Print(
"OverrideCenterOfMass property is set to " & MyMassProp.OverrideCenterOfMass)
        value(0) = 0.09
        value(1) = 0.05
        value(2) = 0.06
        com = value
        Debug.Print(
"Center of mass is overridden? " & MyMassProp.SetOverrideCenterOfMassValue((com), "Coordinate System1", swInConfigurationOpts_e.swThisConfiguration, Nothing))
        params = MyMassProp.CenterOfMass
        Debug.Print(
"Center of mass: X: " & params(0) & ", Y: " & params(1) & ", and Z: " & params(2))
        Debug.Print(
"")

        Debug.Print(
"OverrideMomentsOfInertia property is set to " & MyMassProp.OverrideMomentsOfInertia)
        pmoi = MyMassProp.PrincipleMomentsOfInertia
        Debug.Print(
"Principal moments of inertia before override: Px: " & pmoi(0) & ", Py: " & pmoi(1) & ", and Pz: " & pmoi(2))
        pmoi(0) = 0.14
        Debug.Print(
"Principal moments of inertia are overridden? " & MyMassProp.SetOverridePrincipleMomentsOfInertia((pmoi), swInConfigurationOpts_e.swThisConfiguration, Nothing))
        pmoi = MyMassProp.PrincipleMomentsOfInertia
        Debug.Print(
"Principal moments of inertia after override: Px: " & pmoi(0) & ", Py: " & pmoi(1) & ", and Pz: " & pmoi(2))

        vValue = MyMassProp.GetMomentOfInertia(0)
        Debug.Print(
"Moments of inertia before override: Lxx: " & vValue(0) & ", Lxy: " & vValue(1) & ", Lxz: " & vValue(2) & ", Lyx: " & vValue(3) & ", Lyy: " & vValue(4) & ", Lyz: " & vValue(5) & ", Lzx: " & vValue(6) & ", Lzy: " & vValue(7) & ", Lzz: " & vValue(8))
        Debug.Print(
"Moments of inertia are overridden? " & MyMassProp.SetOverrideMomentsOfInertiaValue(swMomentsOfInertiaReferenceFrame_e.swMomentsOfInertiaReferenceFrame_UserCoordinateSystem, "Coordinate System1", (vValue), swInConfigurationOpts_e.swThisConfiguration, Nothing))
        vValue(0) = 0.1
        Debug.Print(
"Moments of inertia after override: Lxx: " & vValue(0) & ", Lxy: " & vValue(1) & ", Lxz: " & vValue(2) & ", Lyx: " & vValue(3) & ", Lyy: " & vValue(4) & ", Lyz: " & vValue(5) & ", Lzx: " & vValue(6) & ", Lzy: " & vValue(7) & ", Lzz: " & vValue(8))
    
End Sub


    Public swApp As SldWorks

End Class



 

 

 



Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

 
*Email:  
Subject:   Feedback on Help Topics
Page:   Get and Override Mass Properties Example (VB.NET)
*Comment:  
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:



x

We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again
x

Web Help Content Version: API Help (English only) 2013 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.