NX二次开发源码分享： NXOpen C++获取面的面积和周长

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4 g) Z7 n  B  ~' ~5 U5 uNX二次开发源码分享： NXOpen C++获取面的面积和周长
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( s8 ]; s! w+ g9 a. p* g; ?+ }, \[mw_shl_code=cpp,true]double MyClass::MeasureFaceArea(TaggedObject* face_tag)
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+ [3 P- ]& d* _  L) A    char str[256];
        
    Unit *unit1(dynamic_cast<Unit *>(workPart->UniTCollection()->FindObject("SquareMilliMeter")));
    Unit *unit2(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("MilliMeter")));
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# E% g* a0 J) E5 k+ o$ j* B    //FaceCollector issue is fixed in NX9
    NXObject *nullNXObject(NULL);
    MeasureFaceBuilder *measureFaceBuilder1;
1 ?2 b% ^4 A4 n% c    measureFaceBuilder1 = workPart->MeasureManager()->CreateMeasureFaceBuilder(nullNXObject);
        
    Face *face1 = dynamic_cast<Face *>(face_tag);
2 J  T8 P$ @3 A5 j2 `    vector<Face *> faces1(1);
9 G; T7 k6 R" F0 Y    faces1[0] = face1;
3 E- e" e7 h8 D2 Q7 c' q* A. I    FaceDumbRule *faceDumbRule1;
    faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);
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$ s0 }' \$ @$ ~3 m8 ^6 _    std::vector<SelectionIntentRule *> rules1(1);
# b$ v& v8 x' x3 V    rules1[0] = faceDumbRule1;
    measureFaceBuilder1->FaceCollector()->ReplaceRules(rules1, false);
$ ^4 l0 o% n: g0 C8 B    NXOpen::NXObject *nxObjct1 = measureFaceBuilder1->Commit();
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    NXOpen::ScCollector *scCollector1 = measureFaceBuilder1->FaceCollector();
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+ s. R* R& n3 X5 H& s8 w/ e& [    MeasureFaces *measureFaces1;
1 w3 r; g! X9 ~2 ^5 V4 d' [    measureFaces1 = workPart->MeasureManager()->NewFaceProperties(unit1, unit2, 0.99, scCollector1);

& a& a' I, y" ~. v7 U3 i    double face_area = measureFaces1->Area();
    sprintf_s(str, sizeof(str), "Selected Face Area: = %f",face_area);
    print(str);
   
; \1 d4 l! c* E/ D    double face_perimeter = measureFaces1->Perimeter();
    sprintf_s(str, sizeof(str), "Selected Face Perimeter: = %f",face_perimeter);
" a( M. G8 ?2 ~& b+ }0 q    print(str);

5 e/ \0 \4 f+ \1 P' j    delete measureFaces1;   
    delete faceDumbRule1;
    measureFaceBuilder1->Destroy();
    return face_area;
}
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rkc_555

这个方法我试过了，我8.5的版本好像不行，计算的面积为0，可以直接创建measureFaces对象，用另一个重载函数，只要两行代码就能计算出面积