NX二次开发源码分享：查找体中最大的面积

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NX二次开发源码分享：查找体中最大的面积
4 T- S$ a. l& i$ t) z, R! |通过MeasureFaces 下的area方法可以得到面的面积进行遍历查询

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1. #include <NXOpen/Session.hxx>
   
2. #include <NXOpen/Part.hxx>
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3. #include <NXOpen/ParTCollection.hxx>
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4. #include <NXOpen/MeasureManager.hxx>
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5. #include <NXOpen/MeasureFaces.hxx>
   
6. #include <NXOpen/NXObject.hxx>
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7. #include <NXOpen/NXObjectManager.hxx>
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8. #include <NXOpen/Body.hxx>
   
9. #include <NXOpen/Face.hxx>
   
10. #include <NXOpen/Unit.hxx>
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11. #include <NXOpen/UnitCollection.hxx>
    
12. using namespace NXOpen;
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13. 
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14. static tag_t ask_largest_face_interop(tag_t body_tag)
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15. {
    
16.     Session *theSession = Session::GetSession();
    
17. 
    
18.     Part *workPart(theSession->Parts()->Work());
    
19. 
    
20.     Unit *area_units = workPart->UnitCollection()->GetBase("Area");
    
21.     Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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22. 
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23.     Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));
    
24.     std::vector<Face *> theFaces = theBody->GetFaces();
    
25. 
    
26.     double bigArea = 0;
    
27.     Face *bigFace;
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28.     std::vector<IParameterizedSurface *> theFace(1);
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29.     for (int ii = 0; ii < theFaces.size(); ii++)
    
30.     {
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31.         theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);
    
32. 
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33.         MeasureFaces *theMeasure = workPart->MeasureManager()->
    
34.             NewFaceProperties(area_units, length_units, 0.999, theFace);
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35. 
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36.         if (theMeasure->Area() > bigArea)
    
37.         {
    
38.             bigArea = theMeasure->Area();
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39.             bigFace = theFaces[ii];
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40.         }
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41.     }
    
42. 
    
43.     return bigFace->Tag();
    
44. }
    

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谢谢分享啊