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)
{
    char str[256];
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    Unit *unit1(dynamic_cast<Unit *>(workPart->UniTCollection()->FindObject("SquareMilliMeter")));
* N$ I6 }+ R% C$ j    Unit *unit2(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("MilliMeter")));
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2 [" }, W# j/ k8 V    //FaceCollector issue is fixed in NX9
    NXObject *nullNXObject(NULL);
    MeasureFaceBuilder *measureFaceBuilder1;
, b1 L$ {7 |/ n# ]1 V    measureFaceBuilder1 = workPart->MeasureManager()->CreateMeasureFaceBuilder(nullNXObject);
        
6 `' H5 s% y  k9 a    Face *face1 = dynamic_cast<Face *>(face_tag);
8 Q: A. g9 E; Y: y1 _* p' c    vector<Face *> faces1(1);
    faces1[0] = face1;
    FaceDumbRule *faceDumbRule1;
2 c7 x( X6 ~3 e9 ^5 M; u, q6 G    faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);
   
' d1 ?% u$ A- b6 R    std::vector<SelectionIntentRule *> rules1(1);
( u: D9 ^6 k; r( ^* w    rules1[0] = faceDumbRule1;
+ H# i; x' b% P    measureFaceBuilder1->FaceCollector()->ReplaceRules(rules1, false);
8 y, b- c4 d* }2 S    NXOpen::NXObject *nxObjct1 = measureFaceBuilder1->Commit();

6 f& q. L0 w/ f: ~" ~% E. i7 W: E    NXOpen::ScCollector *scCollector1 = measureFaceBuilder1->FaceCollector();

    MeasureFaces *measureFaces1;
    measureFaces1 = workPart->MeasureManager()->NewFaceProperties(unit1, unit2, 0.99, scCollector1);
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9 ^7 u  G  J: ]/ R8 p' ]/ W/ k' w    double face_area = measureFaces1->Area();
0 k' ~* |' B0 b8 ?    sprintf_s(str, sizeof(str), "Selected Face Area: = %f",face_area);
& |5 A+ i( u/ d- X, G    print(str);
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0 j$ k8 w; z. w    double face_perimeter = measureFaces1->Perimeter();
' s2 C* ~0 Z$ A, N; J& W) z% W    sprintf_s(str, sizeof(str), "Selected Face Perimeter: = %f",face_perimeter);
& \! d6 Q! Z: c* C1 r7 k7 b- c    print(str);

    delete measureFaces1;   
$ G9 Q. a& |1 W1 P. J4 o. a    delete faceDumbRule1;
6 j% ], _- b* P2 v% r    measureFaceBuilder1->Destroy();
" F* r4 L$ {+ Q* L$ Y4 a    return face_area;
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3 i8 _- o- |+ h2 l; B% c[/mw_shl_code]
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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