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3 q/ {: W* W, x7 I9 zNX二次开发源码分享：查找体中最大的面积
$ w1 z+ u% w5 {$ z3 x$ \" |- o通过MeasureFaces 下的area方法可以得到面的面积进行遍历查询
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$ t$ ^( a, u4 R e- #include <NXOpen/Session.hxx>
* |2 l5 T1 Q; w! j8 d) _/ e& D - #include <NXOpen/Part.hxx>
1 N3 K# t/ R. z - #include <NXOpen/ParTCollection.hxx>
a- j! p5 N, { V7 A) k - #include <NXOpen/MeasureManager.hxx>
% ^/ ]+ E6 g. x- g. s. @: ?# r1 { - #include <NXOpen/MeasureFaces.hxx>
6 C: y# D) v3 `% `6 u# r4 O3 k - #include <NXOpen/NXObject.hxx>
9 c' E4 n: e2 v! T% R' U - #include <NXOpen/NXObjectManager.hxx>
$ M- l$ u+ v B. @' c9 m - #include <NXOpen/Body.hxx>$ s5 _8 M# Y6 h
- #include <NXOpen/Face.hxx>
4 L# ^: ?9 Y; q! W2 e - #include <NXOpen/Unit.hxx>
' V+ E* b5 _) ^ - #include <NXOpen/UnitCollection.hxx>
2 ]+ K$ r, g3 I7 a; ? - using namespace NXOpen;* d7 w6 i2 K( Z/ n+ |$ ?7 s
: @# V3 c/ d6 i2 s- static tag_t ask_largest_face_interop(tag_t body_tag)3 K$ p9 Q- k8 R
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- Session *theSession = Session::GetSession();
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- Part *workPart(theSession->Parts()->Work());6 _- T( A$ V6 ~/ J/ \+ G1 e
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- Unit *area_units = workPart->UnitCollection()->GetBase("Area");
# N# G$ `1 e& E1 ?" k6 S - Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));
, b3 i S1 |+ f - std::vector<Face *> theFaces = theBody->GetFaces();
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- double bigArea = 0;8 s; G0 k9 r8 ?
- Face *bigFace;
4 J7 s! Y6 T6 X1 T. W- {( U" F( M" E% n - std::vector<IParameterizedSurface *> theFace(1);; _: q; `8 D* H2 N) o
- for (int ii = 0; ii < theFaces.size(); ii++)
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- theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);/ b/ x. \9 w7 u. E) d$ j4 z
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- MeasureFaces *theMeasure = workPart->MeasureManager()->7 P" B- j+ v* B% G; y/ d
- NewFaceProperties(area_units, length_units, 0.999, theFace);/ [( T& s. V2 a' [' p
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- if (theMeasure->Area() > bigArea)8 Q+ p& I8 ~1 T4 N
- {
7 F) c4 u2 l( Y& `1 P, j - bigArea = theMeasure->Area();
4 h% l5 [$ w0 q: K9 `& s+ x) g - bigFace = theFaces[ii];
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$ ^4 _0 x7 K6 }' ^- return bigFace->Tag();# \/ `8 x* U/ `
- }
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