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Analyze Part (C#)

This example shows how to create a static analysis of a part.

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
//    (in the IDE's Project Explorer, right-click
//    the project name, select Add Reference, click the Browse tab,
//    navigate to the install_dir\api\redist\CLR2 folder, and
//    select SolidWorks.Interop.cosworks.dll)  
// 3. Modify the path to solidworks materials.sldmat as needed.
// 4. Open the Immediate window.
// 5. Run the macro.
//
// Postconditions:
// 1.  Adds a default static study results plot.
// 2.  Creates a study called Static-solid.
// 3.  Applies a material to the model.
// 4.  Applies restraints and pressure to the selected faces.
// 5.  Creates a mesh.
// 6.  Runs the analysis.
// 7.  Prints stress and strain values to the Immediate window.
// 8.  Hides fixture and force symbols. Examine the graphics area to verify.
// 9.  Press F5 to continue.
// 10. Shows fixture and force symbols. Examine the graphics area to verify.
// 11. Inspect the static study results plot.
//
// NOTE: Because this part document is used elsewhere,
// do not save any changes when closing it.
//------------------------------------- 

using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using SolidWorks.Interop.cosworks;
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
 
namespace AnalyzePartCSharp.csproj
{
 
    partial class SolidWorksMacro
    {
        public void Main()
        {
            CosmosWorks COSMOSWORKS = default(CosmosWorks);
            CwAddincallback CWObject = default(CwAddincallback);
            CWModelDoc ActDoc = default(CWModelDoc);
            CWStudyManager StudyMngr = default(CWStudyManager);
            CWStudy Study = default(CWStudy);
            CWSolidManager SolidMgr = default(CWSolidManager);
            CWSolidComponent SolidComponent = default(CWSolidComponent);
            CWSolidBody SolidBody = default(CWSolidBody);
            CWMesh CwMesh = default(CWMesh);
            CWResults CWResult = default(CWResults);
            object stress = null;
            ModelDoc2 Part = default(ModelDoc2);
            CWLoadsAndRestraintsManager LBCMgr = default(CWLoadsAndRestraintsManager);
            CWPressure CWPressure = default(CWPressure);
            CWRestraint CWRes1 = default(CWRestraint);
            object pointer1 = null;
            object pointer2 = null;
            object pointer3 = null;
            CWMaterial CWMat = default(CWMaterial);
            byte[] var1 = null;
            byte[] var2 = null;
            byte[] var3 = null;
            int returnValue = 0;
            string selection1 = null;
            string selection2 = null;
            string selection3 = null;
            int status = 0;
            int warnings = 0;
            int errCode = 0;
            int NSource = 0;
            double el = 0;
            double tl = 0;
 
 
            // Open SolidWorks part document 
            Part = (ModelDoc2)swApp.OpenDoc6("C:\\Program Files\\SolidWorks Corp\\SolidWorks\\Simulation\\Examples\\Tutor1.SLDPRT ", (int)swDocumentTypes_e.swDocPART, 1, "", ref status, ref warnings);
            if (Part == null) ErrorMsg(swApp, "Failed to open C:\\Program Files\\SolidWorks Corp\\SolidWorks\\Simulation\\Examples\\Tutor1.SLDPRT.", true);
 
            // Get SolidWorks Simulation object 
            CWObject = (CwAddincallback)swApp.GetAddInObject("SldWorks.Simulation");
            if (CWObject == null) ErrorMsg(swApp, "CWObject object not found.", true);
            COSMOSWORKS = (CosmosWorks)CWObject.CosmosWorks;
            if (COSMOSWORKS == null) ErrorMsg(swApp, "CWObject not found.", true);
 
            // Get active document        
            ActDoc = (CWModelDoc)COSMOSWORKS.ActiveDoc;
            if (ActDoc == null) ErrorMsg(swApp, "No active document.", true);
	   // Add default static study results plot
	   errCode = ActDoc.AddDefaultStaticStudyPlot((int)swsDefaultStaticResultTypes_e.swsStaticResultElementalStrain, (int)swsStaticResultElementalStrainComponentTypes_e.swsStaticElementalStrain_ENERGY);
 
            // Create new static study 
            StudyMngr = (CWStudyManager)ActDoc.StudyManager;
            if (StudyMngr == null) ErrorMsg(swApp, "StudyMngr object not there.", true);
            Study = (CWStudy)StudyMngr.CreateNewStudy3("Static_solid", (int)swsAnalysisStudyType_e.swsAnalysisStudyTypeStatic, (int)swsMeshType_e.swsMeshTypeSolid, out errCode);
            if (Study == null) ErrorMsg(swApp, "Study not created.", true);
 
            // Set material from the SolidWorks material library 
            SolidMgr = (CWSolidManager)Study.SolidManager;
            if (SolidMgr == null) ErrorMsg(swApp, "SolidMgr object not there.", true);
            SolidComponent = (CWSolidComponent)SolidMgr.GetComponentAt(0, out errCode);
            if (errCode != 0) ErrorMsg(swApp, "No solid component.", true);
            SolidBody = (CWSolidBody)SolidComponent.GetSolidBodyAt(0, out errCode);
            if (errCode != 0) ErrorMsg(swApp, "No solid body.", true);
            returnValue = SolidBody.SetLibraryMaterial("c:\\Program Files\\SolidWorks Corp\\SolidWorks\\lang\\english\\sldmaterials\\solidworks materials.sldmat", "Ductile Iron (SN)");
            if (returnValue == 0) ErrorMsg(swApp, "No material applied.", true);
            CWMat = (CWMaterial)SolidBody.GetDefaultMaterial();
            NSource = CWMat.Source;
 
            // Get the PIDs of the faces 
            // First two selections are the faces for restraints 
            // Third selection is the face where pressure is applied 
            selection1 = "216,14,0,0,3,0,0,0,255,254,255,0,0,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,5,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,21,0,109,111,76,80,97,116,116,101,114,110,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,14,0,109,111,79,98,106,70,105,108,101,68,101,102,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,6,84,0,117,0,116,0,111,0,114,0,49,0,123,228,186,50,11,128,255,254,255,62,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,111,0,108,0,105,0,100,0,87,0,111,0,114,0,107,0,115,0,92,0,67,0,79,0,83,0,77,0,79,0,83,0,87,0,111,0,114,0,107,0,115,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,84,0,117,0,116,0,111,0,114,0,49,0,46,0,83,0,76,0,68,0,80,0,82,0,84,0,97,23,28,65,0,0,0,0";
            selection1 = selection1 + ",2,0,1,0,0,0,0,0,0,0,1,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,0,0,0,0,0,0,0,0,0,0,0,0,17,0,0,0,156,231,186,50,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,14,0,0,0,88,231,186,50,3,0,0,0,1,0,0,0,0,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,6,0,0,0,211,228,186,50,1,0,0,0,255,255,255,255,0,0,17,128,0,0,5,128,8,0,6,0,0,0,211,228,186,50,0,0,0,0,255,255,255,255,0,0,0,0,0,0";
            StringtoArray(selection1, ref var1);
            pointer1 = Part.Extension.GetObjectByPersistReference3((var1), out status);
 
            selection2 = "216,14,0,0,3,0,0,0,255,254,255,0,0,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,5,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,14,0,109,111,79,98,106,70,105,108,101,68,101,102,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,6,84,0,117,0,116,0,111,0,114,0,49,0,123,228,186,50,11,128,255,254,255,62,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,111,0,108,0,105,0,100,0,87,0,111,0,114,0,107,0,115,0,92,0,67,0,79,0,83,0,77,0,79,0,83,0,87,0,111,0,114,0,107,0,115,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,84,0,117,0,116,0,111,0,114,0,49,0,46,0,83,0,76,0,68,0,80,0,82,0,84,0,97,23,28,";
            selection2 = selection2 + "65,0,0,0,0,2,0,1,0,0,0,0,0,0,0,1,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,0,0,0,0,0,0,0,0,0,0,0,0,14,0,0,0,88,231,186,50,3,0,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,6,0,0,0,211,228,186,50,1,0,0,0,255,255,255,255,0,0,14,128,0,0,5,128,8,0,6,0,0,0,211,228,186,50,0,0,0,0,255,255,255,255,0,0,0,0,0,0";
            StringtoArray(selection2, ref var2);
            pointer2 = Part.Extension.GetObjectByPersistReference3((var2), out status);
 
            selection3 = "216,14,0,0,3,0,0,0,255,254,255,0,0,0,0,0,255,255,1,0,11,0,109,111,70,97,99,101,82,101,102,95,99,1,0,0,0,0,0,0,0,8,0,0,0,0,3,0,0,0,0,0,0,125,195,148,37,173,73,178,84,125,195,148,37,173,73,178,84,0,0,255,255,1,0,20,0,109,111,69,110,100,70,97,99,101,83,117,114,102,73,100,82,101,112,95,99,0,0,255,255,1,0,6,0,109,111,70,82,95,99,255,255,1,0,13,0,109,111,69,120,116,79,98,106,101,99,116,95,99,255,255,1,0,14,0,109,111,79,98,106,70,105,108,101,68,101,102,95,99,255,255,1,0,17,0,109,111,67,83,116,114,105,110,103,72,97,110,100,108,101,95,99,255,254,255,6,84,0,117,0,116,0,111,0,114,0,49,0,123,228,186,50,11,128,255,254,255,62,67,0,58,0,92,0,80,0,114,0,111,0,103,0,114,0,97,0,109,0,32,0,70,0,105,0,108,0,101,0,115,0,92,0,83,0,111,0,108,0,105,0,100,0,87,0,111,0,114,0,107,0,115,0,92,0,67,0,79,0,83,0,77,0,79,0,83,0,87,0,111,0,114,0,107,0,115,0,92,0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,115,0,92,0,84,0,117,0,116,0,111,0,114,0,49,0,46,0,83,0,76,0,68,0,80,0,82,0,84,0,97,23,28,65,0,0,0,0,2,0,";
            selection3 = selection3 + "1,0,0,0,0,0,0,0,1,0,0,0,255,254,255,7,68,0,101,0,102,0,97,0,117,0,108,0,116,0,0,0,0,0,0,0,0,0,0,0,0,0,11,0,0,0,51,230,186,50,1,0,0,0,255,255,255,255,255,255,1,0,23,0,109,111,70,114,111,109,83,107,116,69,110,116,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,8,0,0,0,218,229,186,50,4,0,0,0,0,0,255,255,1,0,18,0,109,111,80,76,105,110,101,83,117,114,102,73,100,82,101,112,95,99,0,0,5,128,8,0,31,0,0,0,210,195,223,50,17,128,0,0,5,128,8,0,23,0,0,0,160,192,223,50,14,128,0,0,5,128,8,0,19,0,0,0,181,233,186,50,1,0,0,0,1,0,0,0,2,0,0,0,17,128,0,0,5,128,8,0,31,0,0,0,210,195,223,50,17,128,0,0,5,128,8,0,23,0,0,0,160,192,223,50,14,128,0,0,5,128,8,0,19,0,0,0,181,233,186,50,1,0,0,0,1,0,0,0,1,0,0,0,17,128,0,0,5,128,8,0,31,0,0,0,210,195,223,50,17,128,0,0,5,128,8,0,23,0,0,0,160,192,223,50,14,128,0,0,5,128,8,0,19,0,0,0,181,233,186,50,1,0,0,0,2,0,0,0,3,0,0,0,17,128,0,0,5,128,8,0,31,0,0,0,210,195,223,50,17,128,0,0,5,128,8,0,23,0,0,0,160,192,223,50,14,";
            selection3 = selection3 + "128,0,0,5,128,8,0,19,0,0,0,181,233,186,50,1,0,0,0,2,0,0,0,4,0,0,0,0,0,0,0,0,0";
            StringtoArray(selection3, ref var3);
            pointer3 = Part.Extension.GetObjectByPersistReference3((var3), out status);
 
            // Create VARIANT arrays 
            object[] varArray1 = { pointer1, pointer2 };
            object[] varArray2 = { pointer3 };
 
            // Add fixed restraint 
            LBCMgr = (CWLoadsAndRestraintsManager)Study.LoadsAndRestraintsManager;
            if (LBCMgr == null) ErrorMsg(swApp, "No loads and restraints manager.", false);
            CWRes1 = (CWRestraint)LBCMgr.AddRestraint(0, (varArray1), null, out errCode);
            if (errCode != 0) ErrorMsg(swApp, "No fixed restraint created.", true);
 
            // Apply pressure normal to selected face 
            CWPressure = (CWPressure)LBCMgr.AddPressure(0, (varArray2), null, out errCode);
            if (errCode != 0) ErrorMsg(swApp, "No normal pressure created.", true);
            CWPressure.PressureBeginEdit();
            CWPressure.Unit = 1;
            CWPressure.Value = 1000;
            errCode = CWPressure.PressureEndEdit();
            if (errCode != 0) ErrorMsg(swApp, "Nonuniform pressure distribution not set.", true);
 
            // Create mesh 
            CwMesh = (CWMesh)Study.Mesh;
            if (CwMesh == null) ErrorMsg(swApp, "No mesh object.", false);
            CwMesh.Quality = 1;
            CwMesh.GetDefaultElementSizeAndTolerance(0, out el, out tl);
            errCode = Study.CreateMesh(0, el, tl);
            if (errCode != 0) ErrorMsg(swApp, "Mesh failed.", true);
 
            //Run analysis 
            errCode = Study.RunAnalysis();
            if (errCode != 0) ErrorMsg(swApp, "Analysis failed.", true);
            CWResult = (CWResults)Study.Results;
            if (CWResult == null) ErrorMsg(swApp, "No result object.", false);
            stress = CWResult.GetMinMaxStress(0, 0, 1, null, 0, out errCode);
 
            // Get strain and stress values for 
            // first face selected for restraint 
            DispatchWrapper[] dispWrapper = new DispatchWrapper[1];
            dispWrapper[0] = new DispatchWrapper((Entity)pointer1);
            object[] results = null;
            string resultsString = null;
 
            int i;
            Debug.Print("  Strain value by node:");
            results = (object[])CWResult.GetStrainForEntities3(true, (int)swsStrainComponent_e.swsStrainComponentESTRN, 1, null, dispWrapper, status, 0, false, out errCode);
            for (i = 0; i < results.Length; i++)
            {
                resultsString = Convert.ToString(results[i]);
                Debug.Print("    " + resultsString);
            }
 
            Debug.Print(" ");
            Debug.Print("  Stress value by node:");
            results = (object[])CWResult.GetStressForEntities3(true, (int)swsStressComponent_e.swsStressComponentVON, 1, null, dispWrapper, (int)swsStrengthUnit_e.swsStrengthUnitPascal, status, 0, false, out errCode);
            for (i = 0; i < results.Length; i++)
            {
                resultsString = Convert.ToString(results[i]);
                Debug.Print("    " + resultsString);
            }
 
            //Hide fixture and force symbols
            Study.ShowOrHideFixtures = false;
            Study.ShowOrHideForce = false;
 
            System.Diagnostics.Debugger.Break();
 
            //Show fixture and force symbols
            Study.ShowOrHideFixtures = true;
            Study.ShowOrHideForce = true;
        }
 
 
        private void ErrorMsg(object SwApp, string Message, bool EndTest)
        {
            swApp.SendMsgToUser2(Message, 0, 0);
            swApp.RecordLine("'*** WARNING - General");
            swApp.RecordLine("'*** " + Message);
            swApp.RecordLine("");
            if (EndTest)
            {
 
            }
        }
 
 
        private void StringtoArray(string inputSTR, ref byte[] varEntity)
        {
            string[] PIDArray = null;
            byte[] PID = null;
            int i;
 
            // Parse string into an array
            PIDArray = inputSTR.Split(new char[] { ',' });
 
            //Convert string array to byte array
            int sizeArray = PIDArray.Length;
            PID = new byte[sizeArray];
            for (i = 0; i < PIDArray.Length; i++)
            {
 
                PID[i] = Convert.ToByte(PIDArray[i]);
            }
            varEntity = PID;
        }
 
 
        /// <summary> 
        /// The SldWorks swApp variable is pre-assigned for you. 
        /// </summary> 
        public SldWorks swApp;
    }
 
}


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