Get Frequencies in Mode Shape Plots Example (C#)

This example shows how to get frequencies for all mode shapes in amplitude plots.

//----------------------------------------------------------------------------
// Preconditions:
// 1. Add the SOLIDWORKS Simulation as an add-in
//    (in SOLIDWORKS, select Tools > Add-ins > SOLIDWORKS Simulation, 
//    and click OK).
// 2. Add the SOLIDWORKS Simulation primary interop assembly as a reference 
//    (in the IDE's Project Explorer, right-click
//    the project name, click Add Reference, click the Browse tab,
//    navigate to install_dir\api\redist\CLR2, 
//    click SolidWorks.Interop.cosworks.dll, and click OK).
// 3. Ensure that the specified model exists.
//
// Postconditions:
// 1. Meshes the model.
// 2. Analyzes the study.
// 3. Gets the frequencies of all amplitude plot mode shapes.
// 4. Displays a message box with the frequency for mode shape 2.
// 5. Click OK.
//
// NOTE: Because the model is used elsewhere, do not save changes.
// ---------------------------------------------------------------------------
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using SolidWorks.Interop.cosworks;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace GetFreqOrTime_CSharp.csproj
{
    partial class SolidWorksMacro
    {
        ModelDoc2 Part;
        CosmosWorks COSMOSWORKS;
        CwAddincallback CWAddinCallBack;
        CWModelDoc ActDoc;
        CWStudyManager StudyMngr;
        CWStudy Study;
        CWResults CWResult;
        CWMesh mesh;
        int errorCode;
        int longstatus;
        int longwarnings;
        object[] TimeorFrequency;
 
        int ModeShapeNumber;
 
        const double MeshEleSize = 47.9; //mm
        const double MeshTol = 2.39; //mm
 
        public void Main()
        {
            Part = swApp.OpenDoc6("C:\\Program Files\\SOLIDWORKS Corp\\SOLIDWORKS\\Simulation\\Examples\\Dynamics\\ac_unit.sldasm", (int)swDocumentTypes_e.swDocASSEMBLY, 1, "", ref longstatus, ref longwarnings);
 
            CWAddinCallBack = (CwAddincallback)swApp.GetAddInObject("CosmosWorks.CosmosWorks");
            COSMOSWORKS = CWAddinCallBack.CosmosWorks;
            ActDoc = COSMOSWORKS.ActiveDoc;
            StudyMngr = ActDoc.StudyManager;
            StudyMngr.ActiveStudy = 0;
            Study = StudyMngr.GetStudy(0);
 
            mesh = Study.Mesh;
            mesh.MesherType = 0;
            mesh.Quality = 0;
            errorCode = Study.CreateMesh(0, MeshEleSize, MeshTol);
 
            errorCode = Study.RunAnalysis();
            CWResult = Study.Results;
 
            ModeShapeNumber = 2;
            TimeorFrequency = (object[])CWResult.GetTimeOrFrequencyAtEachStep(0, out errorCode);
            MessageBox.Show("Frequency for mode shape 2: " + TimeorFrequency[ModeShapeNumber - 1]);
 
        }
 
        /// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
 
        public SldWorks swApp;
 
    }
 
}