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Get Mass Properties of Visible and Hidden Components Example (C#)

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.
//---------------------------------------------------------------------------------
using
 SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System;
using System.Diagnostics;
 
namespace IncludeMassPropertiesOfHiddenBodiesModelDocExtCSharp.csproj
{
    partial class SolidWorksMacro
    {
        public void Main()
        {
            ModelDoc2 swModel;
            ModelDocExtension swModelDocExt;
            int massStatus = 0;
            double[] massProperties;
            bool boolstatus;
 
            swModel = (ModelDoc2)swApp.ActiveDoc;
            swModelDocExt = swModel.Extension;
 
            Debug.Print("-------------------------------");
            Debug.Print("Mass properties of visible and hidden components:");
            massProperties = (double[])swModelDocExt.GetMassProperties(1, ref massStatus);
            if ((massProperties != null))
            {
                Debug.Print(" CenterOfMassX = " + massProperties[0]);
                Debug.Print(" CenterOfMassY = " + massProperties[1]);
                Debug.Print(" CenterOfMassZ = " + massProperties[2]);
                Debug.Print(" Volume = " + massProperties[3]);
                Debug.Print(" Area = " + massProperties[4]);
                Debug.Print(" Mass = " + massProperties[5]);
                Debug.Print(" MomXX = " + massProperties[6]);
                Debug.Print(" MomYY = " + massProperties[7]);
                Debug.Print(" MomZZ = " + massProperties[8]);
                Debug.Print(" MomXY = " + massProperties[9]);
                Debug.Print(" MomZX = " + massProperties[10]);
                Debug.Print(" MomYZ = " + massProperties[11]);
            }
 
            Debug.Print("-------------------------------");
 
            // Now hide another component 
            boolstatus = swModelDocExt.SelectByID2("slip on weld flange-1@ball valve with flanges""COMPONENT", 0, 0, 0, false, 0, null, 0);
            swModel.HideComponent2();
 
            Debug.Print("Mass properties of visible components only:");
            swModelDocExt.IncludeMassPropertiesOfHiddenBodies = false;
            massProperties = (double[])swModelDocExt.GetMassProperties(1, ref massStatus);
            if ((massProperties != null))
            {
                Debug.Print(" CenterOfMassX = " + massProperties[0]);
                Debug.Print(" CenterOfMassY = " + massProperties[1]);
                Debug.Print(" CenterOfMassZ = " + massProperties[2]);
                Debug.Print(" Volume = " + massProperties[3]);
                Debug.Print(" Area = " + massProperties[4]);
                Debug.Print(" Mass = " + massProperties[5]);
                Debug.Print(" MomXX = " + massProperties[6]);
                Debug.Print(" MomYY = " + massProperties[7]);
                Debug.Print(" MomZZ = " + massProperties[8]);
                Debug.Print(" MomXY = " + massProperties[9]);
                Debug.Print(" MomZX = " + massProperties[10]);
                Debug.Print(" MomYZ = " + massProperties[11]);
            }
            Debug.Print("-------------------------------");
 
        }
 
        /// <summary> 
        /// The SldWorks swApp variable is pre-assigned for you. 
        /// </summary> 
        public SldWorks swApp;
 
    }
}



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