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Create Curvature-based Mesh (C#)

This example shows how to create a curvature-based mesh for a part.

// Preconditions:
// 1. Specified part document exists.
// 2. Add the SOLIDWORKS Simulation as an add-in
//    (in SOLIDWORKS, click Tools > Add-ins > SOLIDWORKS Simulation).
// 3. Add the SOLIDWORKS Simulation primary interop assembly as
//    a reference (in the IDE's Project Explorer, right-click
//    the project name, select Add Reference, click the Browse tab,
//    navigate to the <SOLIDWORKS_install_dir>\api\redist\CLR2 folder, and
//    select SolidWorks.Interop.cosworks.dll).
// 4. Open the Immediate window.
// Postconditions:
// 1. Part document is opened.
// 2. A curvature-based mesh is created for the Ready study.
// 3. In SOLIDWORKS, click the Ready study tab, right-click Mesh
//    in the Simulation tree, and select Show Mesh.
// 4. Zoom in on the part and examine the mesh.
// NOTE: Because the part document is used elsewhere, do not save
// any changes when closing it.
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System;
using System.Diagnostics;
using SolidWorks.Interop.cosworks;
using System.Windows.Forms;

namespace CWMeshSWSimulationCSharp.csproj
partial class SolidWorksMacro
public void Main()
            CosmosWorks COSMOSWORKS =
            CwAddincallback COSMOSObject =
            CWModelDoc ActDoc =
            CWStudyManager StudyMngr =
            CWStudy Study =
            CWMesh CwMesh =
int errCode = 0;
int errors = 0;
int warnings = 0;
double maxElementSize = 20.0;
double minElementSize = 4.0;

const string fileName = "C:\\Program Files\\SOLIDWORKS Corp\\SOLIDWORKS (2)\\Simulation\\Examples\\bikeframe.sldprt";

// Get SOLIDWORKS Simulation object
            COSMOSObject = (CwAddincallback)swApp.GetAddInObject("SldWorks.Simulation");
if (COSMOSObject == null)
"COSMOSObject object not found", true);
            COSMOSWORKS = (CosmosWorks)COSMOSObject.CosmosWorks;
if (COSMOSWORKS == null)
"COSMOSWORKS object not found", true);

// Open document and get it
            swApp.OpenDoc6(fileName, (int)swDocumentTypes_e.swDocPART, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, "", ref errors, ref warnings);
            ActDoc = (CWModelDoc)COSMOSWORKS.ActiveDoc;
if (ActDoc == null)
"No active document.", true);

// Get Ready study
            StudyMngr = (CWStudyManager)ActDoc.StudyManager;
if (StudyMngr == null)
"No StudyMngr object.", true);
            Study = (CWStudy)StudyMngr.GetStudy(0);
if (Study == null)
"No study.", true);
if ((Study.Name != "Ready"))
"Wrong study.", true);
Debug.Print("Name of study: " + Study.Name);

// Get mesh
            CwMesh = (CWMesh)Study.Mesh;
if (CwMesh == null)
"No mesh object.", false);

// Set type of mesh to curvature-based
            CwMesh.MesherType = (int)swsMesherType_e.swsMesherTypeAlternate;

// Set mesh parameters
            CwMesh.GrowthRatio = 1.6;
            CwMesh.MinElementsInCircle = 8;
int)swsLinearUnit_e.swsLinearUnitMillimeters, out maxElementSize, out minElementSize);

// Create mesh
            errCode = Study.CreateMesh((int)swsLinearUnit_e.swsLinearUnitMillimeters, 20, 1);
Debug.Print("Error code: " + errCode);
//0 indicates successful creation of the mesh
            if (errCode != 0)
"Mesh failed; check error code.", true);

// Get maximum and minimum element sizes used for boundaries
            Debug.Print("Maximum element size used for boundaries with lowest curvature: " + CwMesh.MaxElementSize);
Debug.Print("Minimum element size used for boundaries with highest curvature: " + CwMesh.MinElementSize);


// Error function
        public void ErrorMsg(object swApp, string Message, bool EndTest)
"'*** WARNING - General");
"'*** " + Message);
if (EndTest)

/// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>

        public SldWorks swApp;


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