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NX二次开发源码分享：查找体中最大的面积$ _9 v( A1 q0 h+ a5 Y y4 O! T2 i
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>8 H; x7 R7 n+ g- E
- #include <NXOpen/Part.hxx>2 K- ~! K# {4 \5 U+ M+ o$ q* o) W4 `9 Y
- #include <NXOpen/ParTCollection.hxx>
; E$ @4 R- C- i; T+ M) Q3 H# i - #include <NXOpen/MeasureManager.hxx>$ ~/ n; f9 D$ ^9 R
- #include <NXOpen/MeasureFaces.hxx>! c. r4 ^# K; e, L
- #include <NXOpen/NXObject.hxx>
4 I Z+ X: X [ - #include <NXOpen/NXObjectManager.hxx>
! q. `; j& b9 W. k% C& j - #include <NXOpen/Body.hxx>
) s8 O' l$ v4 j p" d - #include <NXOpen/Face.hxx>
! N+ q, `. m! N; K7 g& u2 q7 N - #include <NXOpen/Unit.hxx>
3 e) ~& j# x- V3 q - #include <NXOpen/UnitCollection.hxx>* Z0 t2 P) Q+ J* W" J
- using namespace NXOpen;) b' ? E2 U, E4 w0 C% N
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- static tag_t ask_largest_face_interop(tag_t body_tag)
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- Session *theSession = Session::GetSession();( n/ ~6 g, C8 [7 r
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- Part *workPart(theSession->Parts()->Work());
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5 u) U& `+ k7 t/ I- Unit *area_units = workPart->UnitCollection()->GetBase("Area");
. X9 b0 A6 v! @* J% |2 A8 X2 i - Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));
$ h/ J+ x, w1 G- j b4 T4 O - std::vector<Face *> theFaces = theBody->GetFaces();
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- double bigArea = 0;
- k- \2 l. w% C, l# e - Face *bigFace;
g1 N( t* G- i, y$ Q - std::vector<IParameterizedSurface *> theFace(1);" i* P) N j) P/ J: \$ `5 N2 x
- for (int ii = 0; ii < theFaces.size(); ii++)
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- theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);
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* W5 B5 w: x8 g& j, `+ _: s$ t- MeasureFaces *theMeasure = workPart->MeasureManager()->
" N; U) Q* g9 C$ k - NewFaceProperties(area_units, length_units, 0.999, theFace);9 P2 {; k- h" l
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- if (theMeasure->Area() > bigArea)
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3 [. n6 a! f1 L) s1 A x - bigArea = theMeasure->Area();8 A- T: w) H3 A0 b
- bigFace = theFaces[ii];5 ^* ~1 I$ l7 K1 u- s
- }
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# M7 Q# J5 K4 r* u6 K- return bigFace->Tag();
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