NX二次开发源码分享： NXOpen C++获取面的面积和周长

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; Y# }0 x* f; f1 U0 WNX二次开发源码分享： NXOpen C++获取面的面积和周长
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[mw_shl_code=cpp,true]double MyClass::MeasureFaceArea(TaggedObject* face_tag)
  A2 w' Y( T7 j+ \- V& @{
    char str[256];
  q, r  W9 }! g; q        
    Unit *unit1(dynamic_cast<Unit *>(workPart->UniTCollection()->FindObject("SquareMilliMeter")));
    Unit *unit2(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("MilliMeter")));
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# C9 b& T% B$ I' Z/ |. ]4 [    //FaceCollector issue is fixed in NX9
% r. h- B3 }5 p, @1 R# Y    NXObject *nullNXObject(NULL);
: }7 D: p: `# b8 E# Y    MeasureFaceBuilder *measureFaceBuilder1;
    measureFaceBuilder1 = workPart->MeasureManager()->CreateMeasureFaceBuilder(nullNXObject);
        
! h2 B" F% J" s! D- I5 ?' K    Face *face1 = dynamic_cast<Face *>(face_tag);
1 w3 p' i. N7 C9 M    vector<Face *> faces1(1);
/ ~" Y/ ^2 f* _5 _( t2 a    faces1[0] = face1;
    FaceDumbRule *faceDumbRule1;
    faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);
   
    std::vector<SelectionIntentRule *> rules1(1);
9 f  X/ ]7 N5 D, T" I, l    rules1[0] = faceDumbRule1;
    measureFaceBuilder1->FaceCollector()->ReplaceRules(rules1, false);
) t6 F6 D4 Q( C' d% F( T    NXOpen::NXObject *nxObjct1 = measureFaceBuilder1->Commit();

) D" v' D  G# p/ Z/ e9 K  r- ?    NXOpen::ScCollector *scCollector1 = measureFaceBuilder1->FaceCollector();
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: m' c& j, z6 f2 @    MeasureFaces *measureFaces1;
+ R- S/ t& f6 G9 n/ E    measureFaces1 = workPart->MeasureManager()->NewFaceProperties(unit1, unit2, 0.99, scCollector1);

/ k8 x5 ]+ k. W9 ^+ c    double face_area = measureFaces1->Area();
9 b- b7 {. E& q5 I- g& C    sprintf_s(str, sizeof(str), "Selected Face Area: = %f",face_area);
    print(str);
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/ I2 x8 x7 m6 j" w0 k& u: d    double face_perimeter = measureFaces1->Perimeter();
3 g* |& ]/ O3 y; |6 s    sprintf_s(str, sizeof(str), "Selected Face Perimeter: = %f",face_perimeter);
    print(str);

    delete measureFaces1;   
    delete faceDumbRule1;
& N9 b2 U* g2 o+ R9 \, I- C    measureFaceBuilder1->Destroy();
2 g8 _6 G! B# m8 I) o- \    return face_area;
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9 F. ^# M7 C' K* k- u  m8 S  [[/mw_shl_code]

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