NX二次开发源码分享： NXOpen C++获取面的面积和周长

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NX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)
{
0 O6 ], r% D. W    char str[256];
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+ _* L1 [0 |7 ?# c9 L% V, P/ ]    Unit *unit1(dynamic_cast<Unit *>(workPart->UniTCollection()->FindObject("SquareMilliMeter")));
, @2 \. M+ u% N5 S( l: f    Unit *unit2(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("MilliMeter")));
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$ [* E9 h' g! L2 Z    //FaceCollector issue is fixed in NX9
( x$ h  C& t8 y6 o$ o( p1 ?    NXObject *nullNXObject(NULL);
8 ~) Y' o0 l0 i3 P, @    MeasureFaceBuilder *measureFaceBuilder1;
0 p' e" i7 h5 F4 u# m9 q( m0 v; L    measureFaceBuilder1 = workPart->MeasureManager()->CreateMeasureFaceBuilder(nullNXObject);
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    Face *face1 = dynamic_cast<Face *>(face_tag);
    vector<Face *> faces1(1);
    faces1[0] = face1;
- |7 F/ z1 y; t  S9 \/ c    FaceDumbRule *faceDumbRule1;
    faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);
   
    std::vector<SelectionIntentRule *> rules1(1);
    rules1[0] = faceDumbRule1;
    measureFaceBuilder1->FaceCollector()->ReplaceRules(rules1, false);
    NXOpen::NXObject *nxObjct1 = measureFaceBuilder1->Commit();
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    NXOpen::ScCollector *scCollector1 = measureFaceBuilder1->FaceCollector();

( v- d2 |0 z; |) G$ B    MeasureFaces *measureFaces1;
    measureFaces1 = workPart->MeasureManager()->NewFaceProperties(unit1, unit2, 0.99, scCollector1);
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  k) [9 p& Z% c# x    double face_area = measureFaces1->Area();
    sprintf_s(str, sizeof(str), "Selected Face Area: = %f",face_area);
    print(str);
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    double face_perimeter = measureFaces1->Perimeter();
/ u/ H# Y7 v- T4 A& ]6 S3 [    sprintf_s(str, sizeof(str), "Selected Face Perimeter: = %f",face_perimeter);
    print(str);

    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