Create Shell Feature Example (C#)

This example shows how to create a shell feature.

//---------------------------------------------------------------------------
// Preconditions:
// 1. Verify that the specified model document exists.
// 2. Open an Immediate window.
//
// Postconditions:
// 1. Selects a face to remove from the model to create the shell.
// 2. Creates Shell1.
// 3. Inspect the Immediate window, graphics area, and
//    FeatureManager design 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 System.Runtime.InteropServices;
 
namespace CreateShellFeature_CSharp.csproj
{
    partial class SolidWorksMacro
    {
 
        ModelDoc2 swModel;
        SelectionMgr swSelMgr;
        SelectData swSelData;
        Feature swFeat;
        ShellFeatureData swShell;
        object[] vFaceRemArr;
        object vFaceRem;
        Face2 swFaceRem;
        object[] vMultiFaceArr;
        object vMultiFace;
        Face2 swMultiFace;
        Entity swEnt;
        int i;
        bool bRet;
        int longstatus;
        int longwarnings;
 
 
        public void Main()
{
swModel = (ModelDoc2)swApp.OpenDoc6("C:\\Users\\Public\\Documents\\SOLIDWORKS\\SOLIDWORKS 2018\\samples\\tutorial\\api\\block20.sldprt", 1, 0, "", ref longstatus, ref longwarnings);
swApp.ActivateDoc2("block20", false, ref longstatus);
swModel = (ModelDoc2)swApp.ActiveDoc;
 
bRet = swModel.Extension.SelectByID2("", "FACE", -0.0150558029249623, 0.0396239999999466, -0.018063862472502, false, 1, null, 0);
swModel.InsertFeatureShell(0.00254, false);
 
swSelMgr = (SelectionMgr)swModel.SelectionManager;
swSelData = swSelMgr.CreateSelectData();
swFeat = (Feature)swSelMgr.GetSelectedObject6(1, -1);
swShell = (ShellFeatureData)swFeat.GetDefinition();
 
// Get shell data
Debug.Print("File = " + swModel.GetPathName());
Debug.Print("  " + swFeat.Name);
Debug.Print("    Direction: " + swShell.Direction);
Debug.Print("    Thickness: " + swShell.Thickness * 1000.0 + " mm");
Debug.Print("    Count of faces removed: " + swShell.FacesRemovedCount);
Debug.Print("    Count of faces with alternative thicknesses: " + swShell.GetMultipleThicknessFacesCount());
 
bRet = swShell.AccessSelections(swModel, null);
swModel.ClearSelection2(true);
 
vFaceRemArr = (object[])swShell.FacesRemoved;
 
for (i =0; i< vFaceRemArr.GetLength(0); i++) {
vFaceRem = vFaceRemArr[i];
swFaceRem = (Face2)vFaceRem;
swEnt = (Entity)swFaceRem;
 
bRet = swEnt.Select4(true, swSelData);
}
 
swModel.ClearSelection2(true);
vMultiFaceArr = (object[])swShell.MultipleThicknessFaces;
 
foreach (object vMultiFace_loopVariable in vMultiFaceArr) {
vMultiFace = vMultiFace_loopVariable;
swMultiFace = (Face2)vMultiFace;
swEnt = (Entity)swMultiFace;
 
Debug.Print("    Alternative thickness in mm at face (" + i + "): " + swShell.GetMultipleThicknessAtIndex(i) * 1000.0);
i = i + 1;
 
bRet = swEnt.Select4(true, swSelData);
}
 
swModel.ClearSelection2(true);
swShell.ReleaseSelectionAccess();
 
 
}
 
        /// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
 
        public SldWorks swApp;
 
    }
 
}