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NX二次开发源码分享：查找体中最大的面积
/ R5 V6 G$ Y9 j, w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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; |! V, y" E9 r: |0 N/ M- #include <NXOpen/Session.hxx>
) ^$ {& \6 k& C' e4 |* @- \* S - #include <NXOpen/Part.hxx>1 W u7 k( H" D2 W, A+ U0 O' D
- #include <NXOpen/ParTCollection.hxx>
4 p Q2 z) U- a' [ e - #include <NXOpen/MeasureManager.hxx>$ e S6 b! {0 f5 S& o4 y
- #include <NXOpen/MeasureFaces.hxx>! V( w2 f, W, R2 _1 |' F$ y
- #include <NXOpen/NXObject.hxx>
) M1 }# Q/ i$ a ~' E- c - #include <NXOpen/NXObjectManager.hxx>$ [+ ~6 {) K9 s' g6 }. m
- #include <NXOpen/Body.hxx># j+ m" S: a6 q* N- b2 `
- #include <NXOpen/Face.hxx>
/ x" B! I( o* m0 d8 ^; c - #include <NXOpen/Unit.hxx>7 c* ~$ B# i2 R* P/ Q
- #include <NXOpen/UnitCollection.hxx>
7 C3 T- H0 z9 J' l% ~7 Q! ? - using namespace NXOpen;
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- static tag_t ask_largest_face_interop(tag_t body_tag)
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& I/ p8 z, v( K- o - Session *theSession = Session::GetSession();
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- Part *workPart(theSession->Parts()->Work());' m8 b$ a! k$ F
) ?: _% j, L$ N& |! a- Unit *area_units = workPart->UnitCollection()->GetBase("Area");
, H/ ^+ P7 d7 v; ~' O/ m' l - Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));/ _$ ?( Y2 Y4 I
- std::vector<Face *> theFaces = theBody->GetFaces();
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- double bigArea = 0;( X* E/ t7 s6 r& |% }( v/ |
- Face *bigFace;
1 M- |# r5 u! a( x& f. r5 Q' M - std::vector<IParameterizedSurface *> theFace(1);$ O. S+ u$ T5 D: K" X3 w* b
- for (int ii = 0; ii < theFaces.size(); ii++)$ s E4 U i8 T
- {
; N& f- ~9 v3 Q. I# r& V5 ^" k - theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);! r5 }5 }$ ]6 r* P% m: e& y7 h
3 x) O) p& t5 }2 u7 |/ K" W- MeasureFaces *theMeasure = workPart->MeasureManager()->( L |* ]0 o7 W* J- m
- NewFaceProperties(area_units, length_units, 0.999, theFace);, \* p& n C0 x# q$ i. P2 [! z& P
- W5 S8 E1 F2 ^7 l# h- `- if (theMeasure->Area() > bigArea)
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# k j! e$ `; W! g! r3 \ - bigArea = theMeasure->Area();
# F* D4 v. }# v$ @% B7 H l - bigFace = theFaces[ii];2 C" L' m; T2 Y* l
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- }
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- return bigFace->Tag();
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