Hide Table of Contents
IGetMassProperties Method (IModelDocExtension)

Obsolete. Superseded by IModelDocExtension::GetMassProperties2.

.NET Syntax

Visual Basic (Declaration) 
Function IGetMassProperties( _
   ByVal Accuracy As System.Integer, _
   ByRef Status As System.Integer _
) As System.Double
Visual Basic (Usage) 
Dim instance As IModelDocExtension
Dim Accuracy As System.Integer
Dim Status As System.Integer
Dim value As System.Double
value = instance.IGetMassProperties(Accuracy, Status)
System.double IGetMassProperties( 
   System.int Accuracy,
   out System.int Status
System.double IGetMassProperties( 
&   System.int Accuracy,
&   [Out] System.int Status


  • 0 = as is

  • 1 = default

  • 2 = maximum


Status of the mass property results as defined in swMassPropertiesStatus_e

Return Value

  • in-process, unmanaged C++: Pointer to an array of size 13; the last element is the accuracy at which returned mass properties are calculated (see Remarks)
  • VBA, VB.NET, C#, and C++/CLI: Not supported

    See In-process Methods for details about this type of method.

  • Remarks

    The return value is a 0-based array of doubles as follows:

    [ CenterOfMassX, CenterOfMassY, CenterOfMassZ, Volume, Area, Mass, MomXX, MomYY, MomZZ, MomXY, MomZX, MomYZ, Accuracy ]

    You can use ISldWorks::GetUserPreferenceDoubleValue and swMaterialPropertyDensity to get the density of the SOLIDWORKS part. If the user did not explicitly set the density, then SOLIDWORKS uses a value of 1.0. You can also derive the density of the body by calculating:

    Density = ( Mass / Volume )

    This method returns metric units unless explicitly specified otherwise.

    If this object is...


    An assembly

    • SOLIDWORKS does not include any suppressed components in the mass property analysis. See IComponent2::GetSuppression to determine the state of each assembly component.

    • This method returns the moments of inertia (MOI) about the assembly center-of-gravity coordinate system aligned with the assembly axes.

    A part

    The calculated origin for the returned values are based on the default coordinate systems of the model document. They are not based on the selected coordinate system.

    This method supports multibody parts.


    See Also


    SOLIDWORKS 2003 FCS, Revision Number 11.0

    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

    Subject:   Feedback on Help Topics
    Page:   IGetMassProperties Method (IModelDocExtension)
    *   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:


    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

    Web Help Content Version: API Help (English only) 2016 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.