用.net语言（C#、VB等）开发UG NX二次开发，一定要弄清楚NXOpen和NXOpen.UF的区别。可以看看我以前发的帖子。

以下内容来自与http://bbs.icax.cn/491598p1p1

真的要特别感谢名叫“苏州人”的网友贴了这么多代码。不过这些代码的也是属于NXOpen.UF的使用，不是真正的NXOpen。操作录制的才是真正的NXOpen形式（参见我以前的帖子）

不过，广告部分我就不贴了，呵呵。

第一个例子：怎样用VB.NET在UG中创建一个点? Option Strict Off Imports System Imports NXOpen Imports NXOpen.UF Imports NXOpen.UI Imports NXOpen.Utilities Module CreatePoint Dim s As Session = Session.GetSession() Dim ufs As UFSession = UFSession.GetUFSession() Sub Main() Dim sp As New Point3d(0,0) Dim thePoint As Point = s.Parts.Work.Points.CreatePoint(sp) End Sub Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module第二个例子：怎样用VB.NET在UG中创建一个条线? Option Strict Off Imports System Imports NXOpen Imports NXOpen.UF Imports NXOpen.UI Imports NXOpen.Utilities Module template_code Dim s As Session = Session.GetSession() Sub Main() Dim sp As New Point3d(0,0) Dim ep As New Point3d(10,10,0) Dim theLine As Line = s.Parts.Work.Curves.CreateLine(sp,ep) End Sub Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module 第三个例子：怎样用VB.NET在UG中创建一个圆柱，然后更改它的颜色? Option Strict Off Imports System Imports NXOpen Imports NXOpen.UF Imports NXOpen.UI Imports NXOpen.Utilities Module create_a_cylinder_and_set_color Sub Main() Dim s As Session = Session.GetSession() Dim ufs As UFSession = UFSession.GetUFSession() Dim wp As Part = s.Parts.Work() Dim cyl_feat_tag As NXOpen.Tag Dim orig() As Double = {1,1,0} Dim dir() As Double = {1,1} ufs.Modl.CreateCylinder(FeatureSigns.Nullsign,Nothing,orig,"50",_ "25",dir,cyl_feat_tag) Dim cyl_body_tag As NXOpen.Tag ufs.Modl.AskFeatBody(cyl_feat_tag,cyl_body_tag) Dim cyl_body As Body = CType(NXObjectManager.Get(cyl_body_tag),Body) Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>("Color change",Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>Style.Information,"Current Operation:") cyl_body.Color = 3 cyl_body.RedisplayObject() s.Preferences.ScreenVisualization.FitPercentage = 95 wp.Views.WorkView.Fit() end Sub Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module 第四个例子：怎样用VB.NET在UG中创建注释? Option Strict Off Imports System Imports NXOpen Imports NXOpen.UF Imports NXOpen.UI Imports NXOpen.Utilities Module create_note Dim s As Session = Session.GetSession() Dim ufs As UFSession = UFSession.GetUFSession() Sub Main() Dim theNote As NXOpen.Tag Try Dim workPart As Part = s.Parts.Work Dim workPartTag As NXOpen.Tag = workPart.Tag Catch ex As Exception ufs.Ui.OpenListingWindow() ufs.Ui.WriteListingWindow(ex.GetBaseException.ToString()) ufs.Ui.WriteListingWindow(vbCrLf & "+++ Work Part <a href="https://www.jb51.cc/tag/required/" target="_blank" class="keywords">required</a>" & vbCrLf) Return End Try Dim num_lines As Integer = 2 Dim textString As String() = {"This is the first line.",_ "This is the second line."} Dim origin_3d() As Double = {6,6,0} Dim orientation As Integer = 0 ' zero is Horizontal,1 is Vertical Try ufs.Drf.CreateNote(num_lines,textString,origin_3d,_ orientation,theNote) Catch ex As Exception ufs.Ui.OpenListingWindow() ufs.Ui.WriteListingWindow(ex.GetBaseException.ToString()) ufs.Ui.WriteListingWindow(vbCrLf & "+++ Note not created" & vbCrLf) End Try End Sub Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module 第五个例子：怎样用VB.NET在UG中创建两个体然后做布尔加操作? Imports System Imports NXOpen Imports NXOpen.UF Imports NXOpen.UI Imports NXOpen.Utilities Module template_code Sub Main() Dim s As Session = Session.GetSession() Dim ufs As UFSession = UFSession.GetUFSession() ' ' ------------------------------------------------- make sure we have a part Dim this_part As NXOpen.Tag Try this_part = s.Parts.Work.Tag Catch ex As Exception If this_part = NXOpen.Tag.Null Then Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>("You need an open part to run this program.",Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>Style.OKOnly) ' no part,so exit program gracefully Exit Sub End If End Try ' ' ------------------------------------------------- first solid: a block Dim corner_pt(2) As Double Dim block_feat_tag As NXOpen.Tag Dim edge_lengths(2) As String ' This is an alternate way to set the string value: ' 'Dim lengths(2) As Double 'lengths(0) = 150.1234 'edge_lengths(0) = lengths(0).ToString ' ' but setting it this way,we get the expression to boot: edge_lengths(0) = "xlen=150.1234" edge_lengths(1) = "ylen=65.4321" edge_lengths(2) = "thickness=25." Dim sign As FeatureSigns sign = FeatureSigns.Nullsign corner_pt(0) = 20 corner_pt(1) = 30 corner_pt(2) = -10 ufs.Modl.CreateBlock1(sign,corner_pt,edge_lengths,block_feat_tag) If block_feat_tag <> NXOpen.Tag.Null Then ufs.View.FitView(NXOpen.Tag.Null,1.0) Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>("First Solid Body tag is: " & block_feat_tag.ToString) End If ' ' ------------------------------------------------- second solid: a cylinder Dim height As String Dim diameter As String Dim direction(2) As Double Dim cyl_feat_tag As NXOpen.Tag height = "cyl_height=90" diameter = "cyl_dia=40" direction(0) = 0.707 direction(1) = 0.707 direction(2) = 0.707 ufs.Modl.CreateCyl1(sign,height,diameter,direction,cyl_feat_tag) If cyl_feat_tag <> NXOpen.Tag.Null Then ufs.View.FitView(NXOpen.Tag.Null,1.0) Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>("Second Solid Body tag is: " & cyl_feat_tag.ToString) End If ' ' ------------------------------------------------- unite the two solids Dim block_body_tag As NXOpen.Tag Dim cyl_body_tag As NXOpen.Tag ufs.Modl.AskFeatBody(block_feat_tag,block_body_tag) ufs.Modl.AskFeatBody(cyl_feat_tag,cyl_body_tag) ufs.Modl.UniteBodies(block_body_tag,cyl_body_tag) ' ' ------------------------------------------------- report count of solids Dim all_bodies() As Body = s.Parts.Work.Bodies.ToArray() Dim body_count As Integer body_count = all_bodies.Length Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>("Count of Bodies now in Work Part: " & body_count) End Sub Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module第六个例子：怎样用VB.NET在UG中选择一个体? Option Strict Off Imports System Imports NXOpen Imports NXOpen.UI Imports NXOpen.Utilities Imports NXOpen.UF Module select_a_body_demo Dim s As Session = Session.GetSession() Dim ufs As UFSession = UFSession.GetUFSession() Sub Main() Dim body As NXOpen.Tag While select_a_body(body) = Selection.Response.Ok Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>("Body Tag:" & body.ToString()) ufs.Disp.SetHighlight(body,0) End While End Sub Function select_a_body(ByRef body As NXOpen.Tag) As Selection.Response Dim message As String Dim title As String = "Select a body" Dim scope As Integer = UFConstants.UF_UI_SEL_SCOPE_ANY_IN_ASSEMBLY Dim response As Integer Dim obj As NXOpen.Tag Dim view As NXOpen.Tag Dim cursor(2) As Double Dim ip As UFUi.SelInitFnT = AddressOf init_proc ufs.Ui.LockUgAccess(UFConstants.UF_UI_FROM_CUSTOM) Try ufs.Ui.SelectWithSingleDialog(message,title,scope,ip,_ Nothing,response,body,cursor,view) Finally ufs.Ui.UnlockUgAccess(UFConstants.UF_UI_FROM_CUSTOM) End Try If response <> UFConstants.UF_UI_OBJECT_SELECTED And _ response <> UFConstants.UF_UI_OBJECT_SELECTED_BY_NAME Then Return Selection.Response.Cancel Else Return Selection.Response.Ok End If End Function Function init_proc(ByVal select_ As IntPtr,_ ByVal userdata As IntPtr) As Integer Dim num_triples As Integer = 1 Dim mask_triples(0) As UFUi.Mask mask_triples(0).object_type = UFConstants.UF_solid_type mask_triples(0).object_subtype = UFConstants.UF_solid_body_subtype mask_triples(0).solid_type = UFConstants.UF_UI_SEL_FEATURE_BODY ufs.Ui.SetSelMask(select_,_ UFUi.SelMaskAction.SelMaskClearAndEnableSpecific,_ num_triples,mask_triples) Return UFConstants.UF_UI_SEL_SUCCESS End Function Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module 第七个例子：怎样用VB.NET在UG中选择一个面? Option Strict Off Imports System Imports NXOpen Imports NXOpen.UI Imports NXOpen.Utilities Imports NXOpen.UF Module select_a_face_demo Dim s As Session = Session.GetSession() Dim ufs As UFSession = UFSession.GetUFSession() Sub Main() Dim face As NXOpen.Tag While select_a_face(face) = Selection.Response.Ok Msg<a href="https://www.jb51.cc/tag/Box/" target="_blank" class="keywords">Box</a>("Face Tag:" & face.ToString()) ufs.Disp.SetHighlight(face,0) End While End Sub Function select_a_face(ByRef face As NXOpen.Tag) As Selection.Response Dim message As String Dim title As String = "Select a FACE" Dim scope As Integer = UFConstants.UF_UI_SEL_SCOPE_ANY_IN_ASSEMBLY Dim response As Integer Dim obj As NXOpen.Tag Dim view As NXOpen.Tag Dim cursor(2) As Double Dim mask_face As UFUi.SelInitFnT = AddressOf mask_for_faces ufs.Ui.LockUgAccess(UFConstants.UF_UI_FROM_CUSTOM) Try ufs.Ui.SelectWithSingleDialog(message,mask_face,face,view) Finally ufs.Ui.UnlockUgAccess(UFConstants.UF_UI_FROM_CUSTOM) End Try If response <> UFConstants.UF_UI_OBJECT_SELECTED And _ response <> UFConstants.UF_UI_OBJECT_SELECTED_BY_NAME Then Return Selection.Response.Cancel Else Return Selection.Response.Ok End If End Function Function mask_for_faces(ByVal select_ As IntPtr,_ ByVal userdata As IntPtr) As Integer Dim num_triples As Integer = 1 Dim mask_triples(0) As UFUi.Mask mask_triples(0).object_type = UFConstants.UF_solid_type mask_triples(0).object_subtype = UFConstants.UF_solid_face_subtype mask_triples(0).solid_type = UFConstants.UF_UI_SEL_FEATURE_ANY_FACE ufs.Ui.SetSelMask(select_,mask_triples) Return UFConstants.UF_UI_SEL_SUCCESS End Function Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module Option Strict Off Imports System Imports NXOpen Imports NXOpen.UF Imports NXOpen.UI Imports NXOpen.Utilities Module select_curves_or_edges Dim s As Session = Session.GetSession() Dim ufs As UFSession = UFSession.GetUFSession() Sub Main() Dim curves() As NXOpen.Tag Dim num_curves As Integer Dim n As String = vbCrLf num_curves = select_curves_or_edges("Select Curves or Edges:",curves) If (num_curves) > 0 Then ufs.Ui.OpenListingWindow() ufs.Ui.WriteListingWindow("Selected count: " & num_curves.ToString & n) End If End Sub Function select_curves_or_edges(ByVal prompt As String,_ ByRef curves() As NXOpen.Tag) As Integer Dim cnt As Integer = 0 Dim response As Integer Dim inx As Integer = 0 Dim mask_crvs As UFUi.SelInitFnT = AddressOf mask_for_curves ufs.Ui.LockUgAccess(UFConstants.UF_UI_FROM_CUSTOM) Try ufs.Ui.SelectWithClassDialog(prompt,"Curves:",_ UFConstants.UF_UI_SEL_SCOPE_ANY_IN_ASSEMBLY,_ mask_crvs,cnt,curves) Finally ufs.Ui.UnlockUgAccess(UFConstants.UF_UI_FROM_CUSTOM) End Try For inx = 0 To curves.Length - 1 ufs.Disp.SetHighlight(curves(inx),0) Next Return cnt End Function Function mask_for_curves(ByVal select_ As IntPtr,_ ByVal userdata As IntPtr) As Integer Dim num_triples As Integer = 6 Dim mask_triples(5) As UFUi.Mask mask_triples(0).object_type = UFConstants.UF_line_type mask_triples(0).object_subtype = 0 mask_triples(0).solid_type = 0 mask_triples(1).object_type = UFConstants.UF_circle_type mask_triples(1).object_subtype = 0 mask_triples(1).solid_type = 0 mask_triples(2).object_type = UFConstants.UF_conic_type mask_triples(2).object_subtype = 0 mask_triples(2).solid_type = 0 mask_triples(3).object_type = UFConstants.UF_spline_type mask_triples(3).object_subtype = 0 mask_triples(3).solid_type = 0 mask_triples(4).object_type = UFConstants.UF_point_type mask_triples(4).object_subtype = 0 mask_triples(4).solid_type = 0 mask_triples(5).object_type = UFConstants.UF_solid_type mask_triples(5).object_subtype = 0 mask_triples(5).solid_type = UFConstants.UF_UI_SEL_FEATURE_ANY_EDGE ufs.Ui.SetSelMask(select_,mask_triples) Return UFConstants.UF_UI_SEL_SUCCESS End Function Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module

第八个例子：怎样用VB.NET在UG中选择曲线和边? Option Strict Off Imports System Imports NXOpen Imports NXOpen.UF Imports NXOpen.UI Imports NXOpen.Utilities Module select_curves_or_edges Dim s As Session = Session.GetSession() Dim ufs As UFSession = UFSession.GetUFSession() Sub Main() Dim curves() As NXOpen.Tag Dim num_curves As Integer Dim n As String = vbCrLf num_curves = select_curves_or_edges("Select Curves or Edges:",curves) If (num_curves) > 0 Then ufs.Ui.OpenListingWindow() ufs.Ui.WriteListingWindow("Selected count: " & num_curves.ToString & n) End If End Sub Function select_curves_or_edges(ByVal prompt As String,_ ByRef curves() As NXOpen.Tag) As Integer Dim cnt As Integer = 0 Dim response As Integer Dim inx As Integer = 0 Dim mask_crvs As UFUi.SelInitFnT = AddressOf mask_for_curves ufs.Ui.LockUgAccess(UFConstants.UF_UI_FROM_CUSTOM) Try ufs.Ui.SelectWithClassDialog(prompt,0) Next Return cnt End Function Function mask_for_curves(ByVal select_ As IntPtr,_ ByVal userdata As IntPtr) As Integer Dim num_triples As Integer = 6 Dim mask_triples(5) As UFUi.Mask mask_triples(0).object_type = UFConstants.UF_line_type mask_triples(0).object_subtype = 0 mask_triples(0).solid_type = 0 mask_triples(1).object_type = UFConstants.UF_circle_type mask_triples(1).object_subtype = 0 mask_triples(1).solid_type = 0 mask_triples(2).object_type = UFConstants.UF_conic_type mask_triples(2).object_subtype = 0 mask_triples(2).solid_type = 0 mask_triples(3).object_type = UFConstants.UF_spline_type mask_triples(3).object_subtype = 0 mask_triples(3).solid_type = 0 mask_triples(4).object_type = UFConstants.UF_point_type mask_triples(4).object_subtype = 0 mask_triples(4).solid_type = 0 mask_triples(5).object_type = UFConstants.UF_solid_type mask_triples(5).object_subtype = 0 mask_triples(5).solid_type = UFConstants.UF_UI_SEL_FEATURE_ANY_EDGE ufs.Ui.SetSelMask(select_,mask_triples) Return UFConstants.UF_UI_SEL_SUCCESS End Function Public Function GetUnloadOption(ByVal dummy As String) As Integer GetUnloadOption = UFConstants.UF_UNLOAD_IMMEDIATELY End Function End Module