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Create Curvature-based Mesh Example (C#)

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

// Preconditions:
// 1. Add the SOLIDWORKS Simulation as an add-in (in SOLIDWORKS, click 
//    Tools > Add-ins > SOLIDWORKS Simulation > OK).

// 2. Add the SOLIDWORKS Simulation primary interop assembly as a reference
//    (in the IDE, click Project > Add Reference > .NET > 
//    SolidWorks.Interop.cosworks > OK).
// 3. Ensure that the specified part exists.

// 4. Open the Immediate window.
// Postconditions:
// 1. Opens the part document.
// 2. Creates a curvature-based mesh for study, Ready.
// 3. In SOLIDWORKS, click Ready, right-click Mesh
//    in the Simulation study tree, and click Show Mesh.
// 4. Gets mesh connectivity data and node normal coordinates.
Because the
//    amount of data returned is large, the display code is commented out.
//    Uncomment the display code or add break points to inspect the returned
//    arrays in the Locals window.

// 5. Zoom in on the part and examine the mesh.
// 6. Examine the Immediate window.
// NOTE: Because the part document is used elsewhere, do not save changes.
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:\\Users\\Public\\Documents\\SOLIDWORKS\\SOLIDWORKS 2017\\Simulation Examples\\bikeframe.sldprt";

            COSMOSObject = (CwAddincallback)swApp.GetAddInObject("SldWorks.Simulation");
if (COSMOSObject == null)
"No Simulation add-in");
            COSMOSWORKS = (CosmosWorks)COSMOSObject.CosmosWorks;
if (COSMOSWORKS == null)
"No COSMOSWORKS object");

            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);

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

            CwMesh = (CWMesh)Study.Mesh;
if (CwMesh == null)
"No mesh");

// 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");

// 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);

            object[] Var1 = null;
            object[] Var = null;
            //int i = 0;
            //Debug.Print("Mesh connectivity data");
            //Debug.Print("Number of nodes in connectivity unit, node numbers in connectivity unit");
            //i = 0;
            Var = (object[])CwMesh.GetConnectivity(out errCode);
            //while (i <= Var.GetUpperBound(0))
                //i = i + 1;
            //Debug.Print("Mesh node normals");
            //Debug.Print("Node #, x-coord, y-coord, z-coord of node's normal vector");
            //i = 0;
            Var1 = (object[])CwMesh.GetNodeOutwardDirections(out errCode);
            //while (i <= Var1.GetUpperBound(0))
                //if (0 == i % 4)
                    //Debug.Print("Node: " + Var1[i]);
                    //Debug.Print("  Normal vector (x, y, z coordinates):");
               // }
                    //Debug.Print("    " + Var1[i]);
                //i = i + 1;


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

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

        public SldWorks swApp;


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