NX二次开发源码分享： NXOpen C++获取面的面积和周长

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' `9 u: R% ]( |: kNX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)
' q9 p" `  e. i4 N{
    char str[256];
  f7 \6 l1 l" J# M7 C        
2 f2 ~; ]% ]" \    Unit *unit1(dynamic_cast<Unit *>(workPart->UniTCollection()->FindObject("SquareMilliMeter")));
    Unit *unit2(dynamic_cast<Unit *>(workPart->UnitCollection()->FindObject("MilliMeter")));

    //FaceCollector issue is fixed in NX9
/ Q; _! ^' Y" d    NXObject *nullNXObject(NULL);
2 x8 W% ^5 x- D7 o+ _, S6 U    MeasureFaceBuilder *measureFaceBuilder1;
    measureFaceBuilder1 = workPart->MeasureManager()->CreateMeasureFaceBuilder(nullNXObject);
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    Face *face1 = dynamic_cast<Face *>(face_tag);
    vector<Face *> faces1(1);
    faces1[0] = face1;
    FaceDumbRule *faceDumbRule1;
5 ^5 u- K* n8 ^0 B7 u    faceDumbRule1 = workPart->ScRuleFactory()->CreateRuleFaceDumb(faces1);
   
2 D0 O( j" l, j    std::vector<SelectionIntentRule *> rules1(1);
    rules1[0] = faceDumbRule1;
    measureFaceBuilder1->FaceCollector()->ReplaceRules(rules1, false);
    NXOpen::NXObject *nxObjct1 = measureFaceBuilder1->Commit();

( O  L) W9 ^$ a! e! w- q# N$ ^- H    NXOpen::ScCollector *scCollector1 = measureFaceBuilder1->FaceCollector();
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5 g6 w, S, v" c! Y( n1 X4 e    MeasureFaces *measureFaces1;
    measureFaces1 = workPart->MeasureManager()->NewFaceProperties(unit1, unit2, 0.99, scCollector1);
5 l9 I3 _6 f" {
    double face_area = measureFaces1->Area();
    sprintf_s(str, sizeof(str), "Selected Face Area: = %f",face_area);
    print(str);
   
5 ]1 ?- ?! C: b3 b9 T. [' g    double face_perimeter = measureFaces1->Perimeter();
    sprintf_s(str, sizeof(str), "Selected Face Perimeter: = %f",face_perimeter);
    print(str);

    delete measureFaces1;   
4 k2 F# D5 s( E) R- e& w; L    delete faceDumbRule1;
: [" d' i- {* u' d- J0 S  o    measureFaceBuilder1->Destroy();
9 E* r( @& e+ n/ ?3 L    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