Create Trimmed Surface Feature Example (C#)

This example shows how to create a trimmed surface feature.

// ---------------------------------------------------------------------------
// Preconditions:
// 1. Verify that the specified document template exists.
// 2. Open an Immediate window.
//
// Postconditions:
// 1. Creates a new model document with two intersecting surface extrude
//    features.
// 2. Selects Surface-Extrude2 as the trim tool and sets the trimming options.
// 3. Trims Surface-Extrude1.
// 4. Creates Surface-Trim1 in the FeatureManager design tree.
// 5. Inspect the Immediate window.
// ---------------------------------------------------------------------------
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
using System;
using System.Diagnostics;
 
namespace CrateSurfTrimFeatData_CSharp.csproj
{
    public partial class SolidWorksMacro
    {
 
 
        public void Main()
        {
            ModelDoc2 swModel = default(ModelDoc2);
            SketchManager swSketchMgr = default(SketchManager);
            ModelDocExtension swModelDocExt = default(ModelDocExtension);
            SketchSegment swSketchSegment = default(SketchSegment);
            FeatureManager swFeatureMgr = default(FeatureManager);
            SelectionMgr swSelMgr = default(SelectionMgr);
            Feature swFeat = default(Feature);
            SurfaceTrimFeatureData surfTrimFeatData = default(SurfaceTrimFeatureData);
            bool status = false;
 
            // Create new model document
            swModel = (ModelDoc2)swApp.NewDocument("C:\\ProgramData\\SOLIDWORKS\\SOLIDWORKS 2015\\templates\\Part.prtdot", 0, 0, 0);
            swSketchMgr = (SketchManager)swModel.SketchManager;
            swModelDocExt = (ModelDocExtension)swModel.Extension;
            swFeatureMgr = (FeatureManager)swModel.FeatureManager;
            swSelMgr = (SelectionMgr)swModel.SelectionManager;
 
            // Create two intersecting surfaces
            status = swModelDocExt.SelectByID2("Right Plane", "Plane", 0, 0, 0, false, 0, null, 0);
            swSketchMgr.InsertSketch(true);
            swSketchSegment = (SketchSegment)swSketchMgr.CreateLine(-0.068922, 0.023964, 0.0, 0.042733, 0.005543, 0.0);
            swModel.ClearSelection2(true);
            status = swModelDocExt.SelectByID2("Line1", "SKETCHSEGMENT", 0, 0, 0, false, 0, null, 0);
            swFeatureMgr.FeatureExtruRefSurface2(true, false, false, 0, 0, 0.06604, 0.00254, false, false, false,
            false, 0.0174532925199433, 0.0174532925199433, false, false, false, false, false, false, false,
            false);
            swSelMgr.EnableContourSelection = false;
 
            status = swModelDocExt.SelectByID2("Front Plane", "PLANE", 0, 0, 0, false, 0, null, 0);
            swSketchMgr.InsertSketch(true);
            swSketchSegment = (SketchSegment)swSketchMgr.CreateLine(-0.041529, 0.023059, 0.0, -0.052625, -0.081662, 0.0);
            swModel.ClearSelection2(true);
            status = swModelDocExt.SelectByID2("Line1", "SKETCHSEGMENT", 0, 0, 0, false, 0, null, 0);
            swFeatureMgr.FeatureExtruRefSurface2(false, false, false, 0, 0, 0.0889, 0.06604, false, false, false,
            false, 0.0174532925199433, 0.0174532925199433, false, false, false, false, false, false, false,
            false);
            swSelMgr.EnableContourSelection = false;
 
            // Set the trimming options
            status = swFeatureMgr.PreTrimSurface(false, true, false, false);
 
            // Trim the surface
            status = swModelDocExt.SelectByID2("", "SURFACEBODY", 0.0289416986472588, 0.00781827749557351, 0.0290635845400971, true, 0, null, 0);
            swFeat = (Feature)swFeatureMgr.PostTrimSurface(true);
 
            swModel.ClearSelection2(true);
 
            surfTrimFeatData = (SurfaceTrimFeatureData)swFeat.GetDefinition();
 
            surfTrimFeatData.AccessSelections(swModel, null);
 
            Debug.Print(swFeat.Name);
            Debug.Print("  Number of pieces to keep: " + surfTrimFeatData.GetPiecesToKeepCount());
            Debug.Print("  Surface trim feature type as defined in swSurfaceTrimType_e: " + surfTrimFeatData.GetType());
            Debug.Print("");
 
            object[] varTrimTools = null;
            int i = 0;
 
            varTrimTools = (object[])surfTrimFeatData.TrimTools;
            Debug.Print("Trim tools:");
            for (i = 0; i <= surfTrimFeatData.GetTrimToolsCount() - 1; i++)
            {
                Debug.Print("  " + ((Feature)varTrimTools[i]).Name);
            }
 
            surfTrimFeatData.ReleaseSelectionAccess();
 
        }
 
        /// <summary>
        ///  The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
        public SldWorks swApp;
    }
}