使用NXOpen删除螺孔

vaughn0223

刚学习使用NXOpen，在做一个项目。其中有一个需求，删除部件上的所有直径小于40的螺孔。如下是实现代码：

1. def remove_holes(file:str, out_file:str, diameter:int):
   
2.     theSession  = NXOpen.Session.GetSession()
   
3.     basePart1, partLoadStatus1 = theSession.Parts.OpenActiveDisplay(file, NXOpen.DisplayPartOption.AllowAdditional)
   
4.    
   
5.     workPart = theSession.Parts.Work
   
6.     displayPart = theSession.Parts.Display
   
7.     partLoadStatus1.Dispose()
   
8.     theSession.ApplicationSwitchImmediate("UG_APP_MODELING")
   
9.    
   
10.     # loop for holes
    
11.    for feature in workPart.Features:
    
12.        print(f'{feature.Name}')
    
13.        if isinstance(feature, NXOpen.Features.Hole):
    
14.            holeDiameter = feature.GetDiameter()
    
15.            print(f'{feature.Name}, hole diameter: {holeDiameter}')
    
16.            if holeDiameter < diameter:
    
17.                workPart.Features.Delete(feature)
    
18.    
    
19.     # save
    
20.     partSaveStatus1 = workPart.SaveAs(out_file)
    
21.     partSaveStatus1.Dispose()

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使用这种方式，feature都识别不出来，即"workPart.Features"是空的。

哪位大侠帮忙看看，该如何删除螺孔这个功能呢？

hustmse0510

1. <img src="https://www.ugsnx.com/forum.php?mod=image&aid=403414&size=300x300&key=78c0d4e438214915&nocache=yes&type=fixnone" border="0" aid="attachimg_403414" alt=""><img src="https://www.ugsnx.com/forum.php?mod=image&aid=403415&size=300x300&key=903a08b3e315fce7&nocache=yes&type=fixnone" border="0" aid="attachimg_403415" alt="">import NXOpen

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hustmse0510

1. import NXOpen
   
2. import NXOpen_Features
   
3. 
   
4. theSession: NXOpen.Session = NXOpen.Session.GetSession()
   
5. update: NXOpen.Update = theSession.UpdateManager
   
6. workPart: NXOpen.Part = theSession.Parts.Work
   
7. features: NXOpen_Features.FeatureCollection = workPart.Features
   
8. f: NXOpen_Features.Feature
   
9. del_holes_mark = theSession.SetUndoMark(
   
10.     NXOpen.SessionMarkVisibility.Visible,
    
11.     'deleteholes')
    
12. for f in features:
    
13.     if isinstance(f, NXOpen_Features.HolePackage):
    
14.         builder: NXOpen_Features.HolePackageBuilder = features.CreateHolePackageBuilder(
    
15.             f)
    
16.         if builder.TapDrillDiameter.Value < 40.0:
    
17.             update.AddObjectsToDeleteList([f])
    
18. update.DoUpdate(del_holes_mark)

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