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NX二次开发源码分享：查找体中最大的面积
7 O" Q, T# k! l( K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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- #include <NXOpen/Session.hxx># j) Z- E# Q( S* c. J* u
- #include <NXOpen/Part.hxx>$ B3 |; Q5 a5 z$ m X) F/ K
- #include <NXOpen/ParTCollection.hxx>! r0 D, [0 p+ h, ~+ \& _+ v
- #include <NXOpen/MeasureManager.hxx>
! }( ^. L" u/ S2 k. s) r) v7 v+ u - #include <NXOpen/MeasureFaces.hxx>
U8 H5 r( y& l: n7 T - #include <NXOpen/NXObject.hxx>9 W. G7 P0 J" d" r# [9 o
- #include <NXOpen/NXObjectManager.hxx>3 \6 N3 a& _& _# Y$ X: C! ]: H* g
- #include <NXOpen/Body.hxx>: o) H3 n+ f$ R: w# i5 L2 U
- #include <NXOpen/Face.hxx># G- I# F* _4 d. ]
- #include <NXOpen/Unit.hxx>6 ?, e$ j g- a
- #include <NXOpen/UnitCollection.hxx>
7 P: f- D* d& K1 I5 l! [$ V - using namespace NXOpen;
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- static tag_t ask_largest_face_interop(tag_t body_tag)
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- Session *theSession = Session::GetSession();2 ? x8 i# b1 x% x
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- Part *workPart(theSession->Parts()->Work());
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- Unit *area_units = workPart->UnitCollection()->GetBase("Area"); c% e1 V: r* M, Q2 \/ ]
- Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));
7 l2 A! }% M7 f5 E l) S6 {# @' h6 ^; s - std::vector<Face *> theFaces = theBody->GetFaces();
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- double bigArea = 0;
- h+ |. f: i/ @$ T. h5 n, E3 Q$ \ - Face *bigFace;
0 ^8 P1 s% c0 Q) n0 T! | - std::vector<IParameterizedSurface *> theFace(1);& U1 z" U u4 t
- for (int ii = 0; ii < theFaces.size(); ii++)
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- s4 k) h1 q2 Z x4 V2 F- j - theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);
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- MeasureFaces *theMeasure = workPart->MeasureManager()->& N) r3 p) f4 X" V
- NewFaceProperties(area_units, length_units, 0.999, theFace); Y0 E) X# ~9 o, V) w1 m8 `7 S% |
* b x+ g% k9 t, d t! e" q- if (theMeasure->Area() > bigArea)
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/ D! X5 b8 \: O1 m( W5 O# n - bigArea = theMeasure->Area();
; m% m: q! P' `6 R$ m, b" } - bigFace = theFaces[ii];! e: {' v4 c* Z) m3 ]
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- }
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) o3 U6 j; D& D2 K- return bigFace->Tag();
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