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Add Bearing Load Example (C#)

This example shows how to add a bearing load and get its properties.

NOTE: To get persistent reference identifiers (PIDs) for model selections, you can use pidcollector.exe or IModelDocExtension::GetPersistReference3.

// Preconditions:
// 1. Add the SOLIDWORKS Simulation as an add-in
//    (in SOLIDWORKS, click Tools > Add-ins > SOLIDWORKS Simulation).
// 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 document exists.
// 4. Ensure that the specified material library exists.
// 5. Open an Immediate window.
// Postconditions:
//  1. Opens the specified model document.
//  2. Inserts Coordinate System1 in the FeatureManager design tree.
//  3. Creates new study, Static1.
//  4. Applies AISI 1020 steel to the solid bodies in the model.
//  5. Adds BearingLoads-1 to the Simulation study tree of Static1.
//  6. Prints the properties of BearingLoads-1 to the Immediate window.
//  7. Meshes the bodies in the model.
//  8. Sets the study options for Static1.
//  9. Analyzes Static1.
// 10. Inspect the Immediate window, FeatureManager design tree, and
//     Simulation study tree.
// 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;
namespace AddBearingLoad_CSharp.csproj
    partial class SolidWorksMacro
        ModelDoc2 Part;
        Feature coordSys;
        CosmosWorks COSMOSWORKS;
        CwAddincallback CWAddinCallBack;
        CWModelDoc ActDoc;
        CWStudyManager StudyMngr;
        CWStudy Study;
        CWSolidManager SolidMgr;
        CWSolidComponent SolidComp;
        CWSolidBody SolidBody;
        CWLoadsAndRestraintsManager LBCMgr;
        CWBearingLoad CWBearingLoad;
        int errCode;
        int intStatus;
        bool boolstatus;
        int longstatus;
        int longwarnings;
        CWStaticStudyOptions StaticOptions;
        object DispArray1;
        object[] DispArray2 = new object[1];
        const double MeshEleSize = 4.48279654351123;
        const double MeshTol = 0.224139827175561;
        const double Tol1 = 0.05;
        public void Main()
            Part = swApp.OpenDoc6("C:\\Program Files\\SOLIDWORKS Corp\\SOLIDWORKS\\Simulation\\Examples\\Educational Examples\\spider.sldasm", 2, 0, ""ref longstatus, ref longwarnings);
            Part = (ModelDoc2)swApp.ActiveDoc;
            boolstatus = Part.Extension.SelectByID2("""EDGE", 0.0031492437665861, 0.0396829082139902, -0.0158746437667787, false, 4, null, 0);
            boolstatus = Part.Extension.SelectByID2("Axis1""AXIS", 0, 0, 0, true, 8, null, 0);
            coordSys = Part.FeatureManager.InsertCoordinateSystem(falsefalsefalse);
            Hashtable PIDCollection = new Hashtable();
            PIDCollection = PIDInitializer();
            string strMaterialLib = null;
            strMaterialLib = swApp.GetExecutablePath() + "\\lang\\english\\sldmaterials\\solidworks materials.sldmat";
            DispArray1 = SelectByPID(Part, "selection1", PIDCollection); // coordinate system
            DispArray2[0] = new DispatchWrapper(SelectByPID(Part, "selection2", PIDCollection)); // cylindrical face
            CWAddinCallBack = (CwAddincallback)swApp.GetAddInObject("SldWorks.Simulation");
            if (CWAddinCallBack == null)
                ErrorMsg(swApp, "Failed to get Simulation add-in");
            COSMOSWORKS = CWAddinCallBack.CosmosWorks;
            if (COSMOSWORKS == null)
                ErrorMsg(swApp, "Failed to get CosmosWorks");
            ActDoc = COSMOSWORKS.ActiveDoc;
            if (ActDoc == null)
                ErrorMsg(swApp, "Failed to get active document");
            //Create new static study
            StudyMngr = (CWStudyManager)ActDoc.StudyManager;
            if (StudyMngr == null)
                ErrorMsg(swApp, "Failed to get the study manager");
            Study = StudyMngr.CreateNewStudy3("Static1", (int)swsAnalysisStudyType_e.swsAnalysisStudyTypeStatic, 0, out errCode);
            if (Study == null)
                ErrorMsg(swApp, "Failed to create new study");
            //Add materials
            SolidMgr = Study.SolidManager;
            if (SolidMgr == null)
                ErrorMsg(swApp, "Failed to get solid manager");
            SolidComp = SolidMgr.GetComponentAt(0, out errCode);
            if (errCode != 0)
                ErrorMsg(swApp, "Failed to get component");
            SolidBody = SolidComp.GetSolidBodyAt(0, out errCode);
            if (errCode != 0)
                ErrorMsg(swApp, "Failed to get solid body");
            intStatus = SolidBody.SetLibraryMaterial(strMaterialLib, "AISI 1020");
            if (intStatus != 1)
                ErrorMsg(swApp, "Failed to apply material");
            SolidComp = SolidMgr.GetComponentAt(1, out errCode);
            if (errCode != 0)
                ErrorMsg(swApp, "Failed to get component");
            SolidBody = SolidComp.GetSolidBodyAt(0, out errCode);
            if (errCode != 0)
                ErrorMsg(swApp, "Failed to get solid body");
            intStatus = SolidBody.SetLibraryMaterial(strMaterialLib, "AISI 1020");
            if (intStatus != 1)
                ErrorMsg(swApp, "Failed to apply material");
            SolidComp = SolidMgr.GetComponentAt(2, out errCode);
            if (errCode != 0)
                ErrorMsg(swApp, "Failed to get component");
            SolidBody = SolidComp.GetSolidBodyAt(0, out errCode);
            if (errCode != 0)
                ErrorMsg(swApp, "Failed to get solid body");
            intStatus = SolidBody.SetLibraryMaterial(strMaterialLib, "AISI 1020");
            if (intStatus != 1)
                ErrorMsg(swApp, "Failed to apply material");
            //Add a bearing load
            LBCMgr = Study.LoadsAndRestraintsManager;
            if (LBCMgr == null)
                ErrorMsg(swApp, "Failed to get the loads and restraints manager");
            CWBearingLoad = LBCMgr.AddBearingLoad(DispArray1, (DispArray2), ref errCode);
            if (errCode != 0)
                ErrorMsg(swApp, "Failed to create a bearing load");
            Debug.Print("Bearing load properties:");
            Debug.Print("  Unit system as defined in swsUnit_e: " + CWBearingLoad.BearingLoadUnit);
            Debug.Print("  Direction (0 = x direction, 1 = y direction): " + CWBearingLoad.Direction);
            Debug.Print("  Bearing force:");
            Debug.Print("    x direction: " + CWBearingLoad.XDirectionValue);
            Debug.Print("    y direction: " + CWBearingLoad.YDirectionValue);
            //Create mesh
            CWMesh CWMeshObj = default(CWMesh);
            CWMeshObj = Study.Mesh;
            if (CWMeshObj == null)
                ErrorMsg(swApp, "Failed to create mesh object");
            CWMeshObj.MesherType = 0;
            CWMeshObj.Quality = 0;
            errCode = Study.CreateMesh(0, MeshEleSize, MeshTol);
            if (errCode != 0)
                ErrorMsg(swApp, "Failed to create mesh");
            CWMeshObj = null;
            //Set static study options
            StaticOptions = Study.StaticStudyOptions;
            if (StaticOptions == null)
                ErrorMsg(swApp, "Failed to get static study options");
            StaticOptions.SolverType = 1;
            StaticOptions.UseSoftSpring = 1;
            StaticOptions.LargeDisplacement = 0;
            //Run analysis
            errCode = Study.RunAnalysis();
            if (errCode != 0)
                ErrorMsg(swApp, "Analysis failed with error as defined in swsRunAnalysisError_e: " + errCode);
        public void ErrorMsg(SldWorks SwApp, string Message)
            SwApp.SendMsgToUser2(Message, 0, 0);
            SwApp.RecordLine("'*** WARNING - General");
            SwApp.RecordLine("'*** " + Message);
        public object SelectByPID(ModelDoc2 Part, string PIDName, Hashtable PIDCollection)
            object functionReturnValue = null;
            byte[] PID = null;
            string[] PIDVariant = null;
            string PIDString = null;
            int i = 0;
            object SelObj = null;
            //Get the value mapped to the PIDName key from the hashtable
            PIDString = "";
            IDictionaryEnumerator enumerator = (IDictionaryEnumerator)PIDCollection.GetEnumerator();
            while (enumerator.MoveNext())
                if ((string)enumerator.Key == PIDName)
                    PIDString = (string)enumerator.Value;
            //Parse the string into an array
            PIDVariant = PIDString.Split(new char[] { ',' });
            int sizeArray = PIDVariant.Length;
            PID = new byte[sizeArray];
            //Change to a byte array
            for (i = 0; i < PIDVariant.Length - 1; i++)
                PID[i] = Convert.ToByte(PIDVariant[i]);
            //Select the entity
            SelObj = Part.Extension.GetObjectByPersistReference3((PID), out errCode);
            functionReturnValue = SelObj;
            return functionReturnValue;
        public Hashtable PIDInitializer()
            Hashtable PIDCollection = new Hashtable();
            string selection1 = null;
            string selection2 = null;
            //Coordinate system
            selection1 = "64,31,0,0,1,0,0,0,255,254,255,0,0,0,0,0,32,2,0,0";
            selection1 = selection1 + ",Type=1";
            //Cylindrical face
            selection2 = "64,31,0,0,3,0,0,0,255,254,255,14,115,0,104,0,97,0,102,0,116,0,45,0,49,0,64,0,115,0,112,0,105,0,100,0,101,0,114,0,4,0,0,0,16,0,0,0,1,0,0,0,1,0,0,0,10,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,5,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,97,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,79,0,76,0,73,0,68,0,87,0,79,0,82,0,75,0,83,0,32,0,67,0,111,0,114,0,112,0,92,0,83,0,79,0,76,0,73,0,68,0,87,0,79,0,82,0,75,0,83,0,92,0,83,0,105,0,109,0,117,0,108,0,97,0,116,0,105,0,111,0,110,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,69,0,100,0,117,0,99,0,97,0,11";
            selection2 = selection2 + "6,0,105,0,111,0,110,0,97,0,108,0,32,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,115,0,104,0,97,0,102,0,116,0,46,0,115,0,108,0,100,0,112,0,114,0,116,0,9,128,255,254,255,5,115,0,104,0,97,0,102,0,116,0,2,0,0,155,126,163,53,0,165,25,208,59,1,0,0,0,0,0,0,0,5,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,63,0,0,0,0,0,0,0,7,50,149,70,12,0,0,0,171,126,163,53,1,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,12,0,0,0,171,126,163,53,1,0,0,0,255,255,255,255,0,0,12,128,0,0,5,128,8,0,12,0,0,0,171,126,163,53,0,0,0,0,255,255,255,255,0,0,0,0,0,0,0,0,0,0";
            selection2 = selection2 + ",Type=1";
            //Store constants in a collection
            PIDCollection.Add("selection1", selection1);
            PIDCollection.Add("selection2", selection2);
            return PIDCollection;
        /// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
        public SldWorks swApp;


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