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( ?! X- k# \/ ZNX二次开发源码分享：查找体中最大的面积 k- H1 M7 t5 C, a8 @/ e% M- Z
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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6 A' b% T: j9 i4 V- #include <NXOpen/Session.hxx>
9 }* E& ?8 J/ ~+ S p) P - #include <NXOpen/Part.hxx>7 ?/ X. b3 O1 l, g
- #include <NXOpen/ParTCollection.hxx>+ w/ y/ ~% p+ g" Q
- #include <NXOpen/MeasureManager.hxx>, h2 D R6 w+ p+ g& P! k3 n1 G8 w
- #include <NXOpen/MeasureFaces.hxx>- j( S% K% J+ @ |3 q4 z
- #include <NXOpen/NXObject.hxx>
- w# h' A1 E0 s' y3 @# } - #include <NXOpen/NXObjectManager.hxx>2 s% G: \" D1 L$ y# d/ s
- #include <NXOpen/Body.hxx>
8 m- t1 O$ R& i9 I( C - #include <NXOpen/Face.hxx>& B `' U; I/ d% S5 E3 ?
- #include <NXOpen/Unit.hxx>/ F6 }' Y) D4 d
- #include <NXOpen/UnitCollection.hxx>2 ^ I$ F- b4 t! I
- using namespace NXOpen;2 X" P3 W$ j, t$ {# |2 i
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- static tag_t ask_largest_face_interop(tag_t body_tag)1 q' y2 _. ?# F/ T! |! J
- {
2 ^3 L0 J; ]+ k - Session *theSession = Session::GetSession();% h3 y. R1 J* N. t v; }6 f
9 \- T6 \: m0 K" [: j% Q0 K: m- Part *workPart(theSession->Parts()->Work());
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1 o9 o% X K3 x! x- Unit *area_units = workPart->UnitCollection()->GetBase("Area");0 M5 ~) L4 Y" {/ U$ E( i0 x
- Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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6 b1 W2 r' {; A- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));* R5 e I9 S* Y s+ V" ~" E
- std::vector<Face *> theFaces = theBody->GetFaces();
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- double bigArea = 0;0 S8 E5 r4 f3 Z9 k
- Face *bigFace;
. V. O; L* i/ l' z |! K - std::vector<IParameterizedSurface *> theFace(1);
- i6 k# {& r6 b/ V l" C1 \0 n V - for (int ii = 0; ii < theFaces.size(); ii++)
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- theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);) _# t! C: u3 N: Y4 p
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- MeasureFaces *theMeasure = workPart->MeasureManager()->; u5 D/ F% X" _; W3 C# f& ~- \
- NewFaceProperties(area_units, length_units, 0.999, theFace);
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- if (theMeasure->Area() > bigArea)
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6 I, x7 R0 L$ C! s6 l5 c) Y# J - bigArea = theMeasure->Area();; j2 ?4 R0 o3 L1 q* Z
- bigFace = theFaces[ii];
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/ Z- w: v+ _& c- return bigFace->Tag();
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