NX二次开发源码分享： NXOpen C++获取面的面积和周长

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2 G$ S  N/ G* z$ B( w' Y, @  O! ^" jNX二次开发源码分享： NXOpen C++获取面的面积和周长

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' v% u9 L- |. h' {4 Q# j+ W4 q) k+ G[mw_shl_code=cpp,true]double MyClass::MeasureFaceArea(TaggedObject* face_tag)
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( v' h& n" d/ B9 Q3 s2 |) D' g$ j    char str[256];
" @3 @+ g0 l1 i        
    Unit *unit1(dynamic_cast<Unit *>(workPart->UniTCollection()->FindObject("SquareMilliMeter")));
8 l' r' X4 u& ^, b    Unit *unit2(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("MilliMeter")));
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5 M( @6 I' I9 C& Q0 |    //FaceCollector issue is fixed in NX9
# \: _$ M( Y+ B" W% e    NXObject *nullNXObject(NULL);
$ K: G$ ?( {$ _. x    MeasureFaceBuilder *measureFaceBuilder1;
    measureFaceBuilder1 = workPart->MeasureManager()->CreateMeasureFaceBuilder(nullNXObject);
        
8 g" y! _6 ~9 l5 l* x    Face *face1 = dynamic_cast<Face *>(face_tag);
    vector<Face *> faces1(1);
& x. R( Z+ p6 C8 v' M    faces1[0] = face1;
0 C  F2 @- t% N& L$ @4 M$ _% u    FaceDumbRule *faceDumbRule1;
* a: m9 ?4 F, o& c# d9 K* {2 ~; v3 s    faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);
   
    std::vector<SelectionIntentRule *> rules1(1);
    rules1[0] = faceDumbRule1;
+ a1 @: d+ T* n! T3 _5 K- t7 i1 B    measureFaceBuilder1->FaceCollector()->ReplaceRules(rules1, false);
: ^% R* z! J# |3 T6 x" o* g    NXOpen::NXObject *nxObjct1 = measureFaceBuilder1->Commit();
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# L# T* b1 l  S7 Q9 j) ~" ]    NXOpen::ScCollector *scCollector1 = measureFaceBuilder1->FaceCollector();

    MeasureFaces *measureFaces1;
# @, a7 k& |9 ^7 ^    measureFaces1 = workPart->MeasureManager()->NewFaceProperties(unit1, unit2, 0.99, scCollector1);

$ R$ E) @8 T9 Y# U6 P    double face_area = measureFaces1->Area();
7 U3 [* [0 a. T  Q4 O2 {# `    sprintf_s(str, sizeof(str), "Selected Face Area: = %f",face_area);
    print(str);
   
% U. t) \3 b  C    double face_perimeter = measureFaces1->Perimeter();
    sprintf_s(str, sizeof(str), "Selected Face Perimeter: = %f",face_perimeter);
5 {& Y- _9 Q0 Z8 ?    print(str);

  d5 |9 K0 q3 L3 O1 N    delete measureFaces1;   
/ X2 n& }- O- u+ T; z  E0 S    delete faceDumbRule1;
    measureFaceBuilder1->Destroy();
2 W1 }. W* o5 S( _6 z    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