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NX二次开发源码分享:查找体中最大的面积4 ~8 Y, M8 l7 r; F* N3 Y9 y
通过MeasureFaces 下的area方法可以得到面的面积进行遍历查询: K4 T8 s6 g( s y6 R k+ w
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- #include <NXOpen/Session.hxx>$ ^- b# v7 l3 ^
- #include <NXOpen/Part.hxx>6 {5 B9 o* s, n3 j9 C
- #include <NXOpen/ParTCollection.hxx>- s' [+ l0 u1 g$ }$ R* R
- #include <NXOpen/MeasureManager.hxx>4 e1 T, K1 D% R7 k7 s; D
- #include <NXOpen/MeasureFaces.hxx>
( x; \3 O" O: Q) }- m( x - #include <NXOpen/NXObject.hxx>- j/ X+ e& l5 o7 t' u
- #include <NXOpen/NXObjectManager.hxx>
8 _& v7 _4 d/ D: ?- k: W - #include <NXOpen/Body.hxx>% B" }, b' Z3 }% T
- #include <NXOpen/Face.hxx>
2 R! W! v$ x4 G - #include <NXOpen/Unit.hxx>* n6 P3 g5 `8 z
- #include <NXOpen/UnitCollection.hxx>
% V2 C- D; [) s1 m - using namespace NXOpen;9 q& J$ d+ Y" z/ q( Y& ^ L
8 p) E' |7 I, l. D9 p1 h# ^7 Z0 M- static tag_t ask_largest_face_interop(tag_t body_tag)
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1 J+ V# ~6 p" S7 _ - Session *theSession = Session::GetSession();
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K& H/ U' P- \0 t0 s, R* K$ J" y- Part *workPart(theSession->Parts()->Work());9 P' G, r+ q1 B+ Q0 g
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- Unit *area_units = workPart->UnitCollection()->GetBase("Area");
0 ?7 D, U4 u: K - Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));7 q' y" |9 s- I$ k. o+ l: d( }
- std::vector<Face *> theFaces = theBody->GetFaces();/ F# k, U1 C7 z6 P
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- double bigArea = 0;& r$ j6 e0 M1 X0 y* }+ u
- Face *bigFace;
" f* P' z" h- S* s - std::vector<IParameterizedSurface *> theFace(1);1 k( W' D0 T' n. p: J
- for (int ii = 0; ii < theFaces.size(); ii++) z* L. R: u$ S! G8 ^8 _
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- theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);. E8 @( t" k- C1 x/ Q
5 R) f! u+ m( n+ z- MeasureFaces *theMeasure = workPart->MeasureManager()->
' i. x2 Q: q9 I- i$ L9 f - NewFaceProperties(area_units, length_units, 0.999, theFace);
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- if (theMeasure->Area() > bigArea)
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3 Y# W2 ^& p' I$ M4 ] - bigArea = theMeasure->Area();
8 g+ l( _5 a s* c$ U/ @ - bigFace = theFaces[ii];
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( _2 [) d! e) A% @' B8 v- return bigFace->Tag();' j9 S, G4 J: }$ C
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