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( U' b o8 |( P: \+ n4 g. rNX二次开发源码分享：查找体中最大的面积
* X1 w% y+ b& A/ J$ J. 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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; C2 G' ]0 L7 U+ g- #include <NXOpen/Session.hxx>5 O4 K- f0 I3 Y, N6 R
- #include <NXOpen/Part.hxx>
4 `7 M( F& y0 P, @+ L - #include <NXOpen/ParTCollection.hxx>5 A0 V- B" P$ J h7 \
- #include <NXOpen/MeasureManager.hxx>" R1 `/ g+ m0 J
- #include <NXOpen/MeasureFaces.hxx>, R+ F8 o. v( i a6 R
- #include <NXOpen/NXObject.hxx>$ e5 f- ?6 Z( h6 z$ N
- #include <NXOpen/NXObjectManager.hxx>
$ Z6 G& F2 B9 L1 n1 h5 s3 i' Z( q; a% y - #include <NXOpen/Body.hxx>
+ m: X2 }4 t3 L$ F4 F6 H% m - #include <NXOpen/Face.hxx>
& n5 q- g2 t1 N - #include <NXOpen/Unit.hxx>) K1 ~. K9 X1 {7 t3 f8 g
- #include <NXOpen/UnitCollection.hxx>
- W' P. j) i- W/ j - using namespace NXOpen;
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! i4 [7 k7 D; C W- static tag_t ask_largest_face_interop(tag_t body_tag). X. U7 c. L; B5 w. S
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& N$ y% P6 o0 d6 ~, G% t7 b2 o - Session *theSession = Session::GetSession();3 b, \( J) X1 i) J: J6 g9 X$ x
9 X0 l: G# f% \# v- R% c" q- Part *workPart(theSession->Parts()->Work());' Q' K) i# c7 G
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- Unit *area_units = workPart->UnitCollection()->GetBase("Area");- B: w1 B6 M" z$ |
- Unit *length_units = workPart->UnitCollection()->GetBase("Length");, Y6 ]+ b: u6 ^' ^( n
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- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));
N% x' p- M5 O+ Q J! p - std::vector<Face *> theFaces = theBody->GetFaces();0 C: J: A8 [9 O+ c
/ \# k" U' n' V, A. s% ^1 I- double bigArea = 0;0 c: r9 k4 J! A- Q, l1 c) i, ?1 }8 c' V
- Face *bigFace;( z4 i+ B$ v1 |4 Q
- std::vector<IParameterizedSurface *> theFace(1);0 i& q* X% Y; j, h2 r; w
- for (int ii = 0; ii < theFaces.size(); ii++)
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- theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);: \2 I' F& j7 @) U
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- MeasureFaces *theMeasure = workPart->MeasureManager()->
& {* ?# S M( Z! i% V - NewFaceProperties(area_units, length_units, 0.999, theFace);* f' D% h) E: }3 }7 e5 u1 W: N
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- if (theMeasure->Area() > bigArea)7 G; Y9 U2 z- H8 o1 G
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- bigArea = theMeasure->Area();* P2 U+ O- H7 s2 h, @3 u" U# X
- bigFace = theFaces[ii];- ]+ v' d2 z: c [2 C5 M5 T" k
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- return bigFace->Tag();
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