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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  F/ O6 V% R" w[mw_shl_code=cpp,true]double MyClass::MeasureFaceArea(TaggedObject* face_tag)
{
    char str[256];
        
' G6 W; J0 j% t& U$ m    Unit *unit1(dynamic_cast<Unit *>(workPart->UniTCollection()->FindObject("SquareMilliMeter")));
+ T$ r% k8 g# H8 p! L    Unit *unit2(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("MilliMeter")));

    //FaceCollector issue is fixed in NX9
. ]- w! U" S6 S3 \& o- K    NXObject *nullNXObject(NULL);
    MeasureFaceBuilder *measureFaceBuilder1;
    measureFaceBuilder1 = workPart->MeasureManager()->CreateMeasureFaceBuilder(nullNXObject);
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3 `7 M; y  {* P" _8 V5 W    Face *face1 = dynamic_cast<Face *>(face_tag);
. o' y# W2 Z& q/ P3 w  s    vector<Face *> faces1(1);
    faces1[0] = face1;
2 {. o3 H& D) T; N# }  T' S    FaceDumbRule *faceDumbRule1;
) h& {5 ]7 E% D: T( d    faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);
   
    std::vector<SelectionIntentRule *> rules1(1);
5 u0 W/ F* u6 q    rules1[0] = faceDumbRule1;
    measureFaceBuilder1->FaceCollector()->ReplaceRules(rules1, false);
    NXOpen::NXObject *nxObjct1 = measureFaceBuilder1->Commit();

    NXOpen::ScCollector *scCollector1 = measureFaceBuilder1->FaceCollector();

    MeasureFaces *measureFaces1;
    measureFaces1 = workPart->MeasureManager()->NewFaceProperties(unit1, unit2, 0.99, scCollector1);
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    double face_area = measureFaces1->Area();
1 L5 T$ A% P3 V$ K8 P    sprintf_s(str, sizeof(str), "Selected Face Area: = %f",face_area);
    print(str);
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. h2 [6 \- J/ D& T    double face_perimeter = measureFaces1->Perimeter();
    sprintf_s(str, sizeof(str), "Selected Face Perimeter: = %f",face_perimeter);
& C/ V4 k- J6 e    print(str);

    delete measureFaces1;   
    delete faceDumbRule1;
% m0 r3 k6 \  Q0 @6 R0 j    measureFaceBuilder1->Destroy();
    return face_area;
}
0 |" _1 Y$ B' k; V" M' o[/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