Hide Table of Contents

Create Curve Through Reference Points Example (C#)

This example shows how to create a curve through reference points.

// Preconditions:
// 1. Verify that the specified model document exists.
// 2. Open an Immediate window.
// Postconditions:
// 1. Opens the part document.
// 2. Selects four reference points.
// 3. Creates Curve1 through the selected points.
// 4. Inspect the FeatureManager design tree, the graphics area, and the
//    Immediate window.
// NOTE: Because the model is used elsewhere, do not save changes.
// ---------------------------------------------------------------------------
using SolidWorks.Interop.sldworks;
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
namespace InsertCurveThroughPoints_CSharp.csproj
    partial class SolidWorksMacro
        ModelDoc2 Part;
        Feature feat;
        ReferencePointCurveFeatureData featData;
        SelectionMgr selMgr;
        bool boolstatus;
        int longstatus;
        int longwarnings;
        public void Main()
            Part = swApp.OpenDoc6("C:\\Users\\Public\\Documents\\SOLIDWORKS\\SOLIDWORKS 2017\\tutorial\\api\\block20.sldprt", 1, 0, ""ref longstatus, ref longwarnings);
            swApp.ActivateDoc2("block20"falseref longstatus);
            Part = (ModelDoc2)swApp.ActiveDoc;
            selMgr = (SelectionMgr)Part.SelectionManager;
            boolstatus = Part.Extension.SelectByID2("""VERTEX", 0.0646002912861796, 0, 0.0493456023787655, false, 1, null, 0);
            boolstatus = Part.Extension.SelectByID2("""VERTEX", 0.0646002912861796, 0.039624, 0.0493456023787655, true, 1, null, 0);
            boolstatus = Part.Extension.SelectByID2("""VERTEX", -0.0624778997860176, 0.039624, 0.0493456023787655, true, 1, null, 0);
            boolstatus = Part.Extension.SelectByID2("""VERTEX", -0.0624778997860176, 0, 0.0493456023787655, true, 1, null, 0);
            boolstatus = Part.Extension.SelectByID2("Curve1""REFERENCECURVES", 0, 0, 0, false, 0, null, 0);
            feat = (Feature)selMgr.GetSelectedObject6(1, -1);
            featData = (ReferencePointCurveFeatureData)feat.GetDefinition();
            featData.AccessSelections(Part, null);
            Debug.Print("  Closed curve? " + featData.ClosedCurve);
            Debug.Print("  Number of through points: " + featData.GetThroughPointCount());
        /// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
        public SldWorks swApp;

Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   Create Curve Through Reference Points Example (C#)
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: API Help (English only) 2017 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.