NX二次開發--NXOPEN C# 方式調用Grip程序

此前c#調用Grip，本人是采用的抽取libufun內部函數的方式（因為c#UFUN本身沒有對“UF_call_grip”封裝），使用相對比較麻煩，今天剛發現c#的nxopen中也是有調

用Grip的函數的。並且調用方式也簡單許多。

官方幫助文檔：

 參數列表 1：需要調用的Grip程序 2：Object基類數組

需要傳遞的參數全部塞進數組里就可以。數組長度必須與Grip中ufargs接收數量一致。

 

以設定孔加工工序幾何體舉例：

Grip代碼：

 

Grip代碼邏輯此處不做解釋。 

 

調用代碼：

using System;
using System.Runtime.InteropServices;
using NXOpen;
using NXOpen.UF;
using NXOpen.Utilities;

public class Program
{
    // class members
    private static Session theSession;
    private static UI theUI;
    private static UFSession theUfSession;
    public static Program theProgram;
    public static bool isDisposeCalled;

    [DllImport("libufun.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi, EntryPoint = "UF_call_grip")]

    internal static extern int _CallGrip(string grip_executable, int argument_count, ref Args[] gruf_arg_list);
    public static void CallGrip(string grip_executable, int argument_count, ref Args[] gruf_arg_list)
    {
        JAM.StartUFCall();
        int num = _CallGrip(grip_executable, argument_count, ref gruf_arg_list);
        JAM.EndUFCall();
    }


    //------------------------------------------------------------------------------
    // Constructor
    //------------------------------------------------------------------------------
    public Program()
    {
        try
        {
            theSession = Session.GetSession();
            theUI = UI.GetUI();
            theUfSession = UFSession.GetUFSession();
            isDisposeCalled = false;
        }
        catch (NXOpen.NXException ex)
        {
            // ---- Enter your exception handling code here -----
            // UI.GetUI().NXMessageBox.Show("Message", NXMessageBox.DialogType.Error, ex.Message);
        }
    }

    //------------------------------------------------------------------------------
    //  Explicit Activation
    //      This entry point is used to activate the application explicitly
    //------------------------------------------------------------------------------
    public static int Main(string[] args)
    {
        int retValue = 0;
        try
        {
            theProgram = new Program();
            
            Selection.SelectionType[] type = new Selection.SelectionType[1];
            type[0] = Selection.SelectionType.All;
            theUI.SelectionManager.SelectTaggedObjects("選擇", "選擇對象", Selection.SelectionScope.WorkPart, false, type, out TaggedObject[] objtmp);
            TaggedObject[] obj = new TaggedObject[200];
            TaggedObject tagged = theSession.Parts.Work as TaggedObject;
            if (objtmp.Length == 0)
            {
                return retValue;
            }

            //為確保傳遞數組的長度與Grip一致，所以給數組中的空元素
            //賦值Grip中無法使用的類型，Grip運行時會遇錯跳轉。
            for (int i = 0; i < 200; i++)
            {
                try
                {
                    obj[i] = objtmp[i];
                }
                catch (Exception)
                {
                    obj[i] = tagged;
                }
            }

            try
            {
                string operName = "TTTTT";
                string gripName = @"D:\FXP-wg\Grx\testhole.grx";
                object[] inputToGrip = new object[3];
                inputToGrip[0] = operName;  //操作名
                inputToGrip[1] = obj;       //幾何體數組
                inputToGrip[2] = Convert.ToDouble(obj.Length);  //數組長度
                object[] getedRet = Session.GetSession().ExecuteGrip(gripName, inputToGrip);  //Call
            }
            catch (Exception exInfo)
            {
                theUfSession.Ui.OpenListingWindow();
                theUfSession.Ui.WriteListingWindow("出錯，錯誤原因：" + exInfo.ToString());
            }


            //TODO: Add your application code here 

            theProgram.Dispose();
        }
        catch (NXOpen.NXException ex)
        {
            // ---- Enter your exception handling code here -----
            theUfSession.Ui.OpenListingWindow();
            theUfSession.Ui.WriteListingWindow("出錯，錯誤原因：" + ex.ToString());
        }
        return retValue;
    }

    //------------------------------------------------------------------------------
    // Following method disposes all the class members
    //------------------------------------------------------------------------------
    public void Dispose()
    {
        try
        {
            if (isDisposeCalled == false)
            {
                //TODO: Add your application code here 
            }
            isDisposeCalled = true;
        }
        catch (NXOpen.NXException ex)
        {
            // ---- Enter your exception handling code here -----

        }
    }

    public static int GetUnloadOption(string arg)
    {
        //Unloads the image explicitly, via an unload dialog
        //return System.Convert.ToInt32(Session.LibraryUnloadOption.Explicitly);

        //Unloads the image immediately after execution within NX
        return System.Convert.ToInt32(Session.LibraryUnloadOption.Immediately);

        //Unloads the image when the NX session terminates
        // return System.Convert.ToInt32(Session.LibraryUnloadOption.AtTermination);
    }

    internal static IntPtr ArrayToIntptr(Tag[] source)
    {
        if (source == null)
            return IntPtr.Zero;
        unsafe
        {
            fixed (Tag* point = source)
            {
                IntPtr ptr = new IntPtr(point);
                return ptr;
            }
        }
    }
}

 

需要注意的是，Grip中所需要的Number類型，是對應C#double類型的，所以傳遞參

數時必須以double類型來傳遞。

inputToGrip[2] = Convert.ToDouble(obj.Length);

 

演示：

 

 

補充一句， 使用for循環固定數組長度的方式好像有點笨拙，有更好思路的朋友歡迎指正。