1  [DllImport("libufun.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi, EntryPoint = "UF_MODL_create_proj_curves")] 2     internal static extern int _CreateProjCurves(System.IntPtr curveRefs, System.IntPtr faceRefs, int alongFaceNormal, double[] projVector, out NXOpen.Tag projCurveFeature); 3  4     [DllImport("libufun.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi, EntryPoint = "UF_MODL_create_list")] 5     internal static extern int CreateList(out System.IntPtr list); 6     [DllImport("libufun.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi, EntryPoint = "UF_MODL_put_list_item")] 7     internal static extern int PutListItem(System.IntPtr list, NXOpen.Tag objId); 8  9     internal static System.IntPtr ListFromArray(NXOpen.Tag[] array)10     {11         System.IntPtr intPtr;12         CreateList(out intPtr);13         for (int i = 0; i < array.Length; i++)14         {15             PutListItem(intPtr, array[i]);16         }17         return intPtr;18     }19 20    /// <summary>21    /// 创建投影特征22    /// </summary>23    /// <param name="curveRefs">需要投影的曲线</param>24    /// <param name="faceRefs">投影面</param>25    /// <param name="alongFaceNormal">是否使用面的法向</param>26    /// <param name="projVector">指定矢量</param>27    /// <param name="projCurveFeature">投影的特征</param>28     public void CreateProjCurves(NXOpen.Tag[] curveRefs, NXOpen.Tag[] faceRefs, int alongFaceNormal, double[] projVector, out NXOpen.Tag projCurveFeature)29     {30         System.IntPtr curveRefs2 = ListFromArray(curveRefs);31         System.IntPtr faceRefs2 = ListFromArray(faceRefs);32         NXOpen.Utilities.JAM.StartUFCall();33         int error = _CreateProjCurves(curveRefs2, faceRefs2, alongFaceNormal, projVector, out projCurveFeature);34         NXOpen.Utilities.JAM.EndUFCall();35         if (error != 0)36         {37             throw NXOpen.NXException.Create(error);38         }39     }