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7 M# I) r% G4 q' S9 h. s7 E$ ?8 qNX二次开发源码分享：查找体中最大的面积
2 [' W' T( P& ^" f: A通过MeasureFaces 下的area方法可以得到面的面积进行遍历查询" F$ n0 }3 Y3 Y- N) f
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% s7 z+ b b: f- #include <NXOpen/Session.hxx> v, ^7 R; g4 S
- #include <NXOpen/Part.hxx>
7 B5 T2 Y) q0 L- \9 ~% ]: P - #include <NXOpen/ParTCollection.hxx>
: F6 ^7 q9 \1 W _# q, ^ - #include <NXOpen/MeasureManager.hxx>
! c: ^9 y% K5 I9 |% A2 j - #include <NXOpen/MeasureFaces.hxx> y4 s( \3 i( e( f; w+ G
- #include <NXOpen/NXObject.hxx>/ `9 J- `0 V% O* u
- #include <NXOpen/NXObjectManager.hxx>
: _# ]8 z- p3 j. a' ^2 D - #include <NXOpen/Body.hxx>
: g1 t3 X5 I! Z: m' ~3 A - #include <NXOpen/Face.hxx>
$ U& [) o5 ~) z0 i+ S - #include <NXOpen/Unit.hxx>
" r+ [" t7 h; y0 | - #include <NXOpen/UnitCollection.hxx>8 L, X* A4 p1 g, b3 b/ i( Q
- using namespace NXOpen;) h5 y' S" Y+ ?/ @# y
0 w; Z# v2 t! @8 c7 I$ u1 d; F; X- static tag_t ask_largest_face_interop(tag_t body_tag)4 B& ?2 a t8 _- u
- {
# c; \: T5 a! ~; {1 P4 a+ g - Session *theSession = Session::GetSession();- d) p: i4 H. @. x" R2 C# q4 p
+ y* E1 m7 e1 [( D- Part *workPart(theSession->Parts()->Work());
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- Unit *area_units = workPart->UnitCollection()->GetBase("Area");
1 C6 ?! o+ I9 O2 J; a8 A- m, O6 i - Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));) A2 m. J8 J' h% s% [5 ~
- std::vector<Face *> theFaces = theBody->GetFaces();6 d- w1 R9 W5 E q0 E$ b* ?
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- double bigArea = 0; r) V' j# E! T Q
- Face *bigFace;
) N% T: y B2 J& y0 G+ N - std::vector<IParameterizedSurface *> theFace(1);
8 o5 R# |! t6 n$ [ - for (int ii = 0; ii < theFaces.size(); ii++)
: r, J2 C3 U8 W7 T# Q9 j9 ~ - {
+ \; c1 R% I+ }( ^ - theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);
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- ~/ W- T) K5 P; G$ z, c2 u; U9 s- MeasureFaces *theMeasure = workPart->MeasureManager()->' }( n9 [9 w% m) R& t0 v7 \
- NewFaceProperties(area_units, length_units, 0.999, theFace);6 d) x; D* c9 |. ^0 q
! f' @- I/ Q3 d/ V# J- if (theMeasure->Area() > bigArea)7 F/ `5 d4 W# \9 A. W
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- bigArea = theMeasure->Area();3 t- [0 `0 H+ @
- bigFace = theFaces[ii];& m8 b, x8 l2 ` e
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- return bigFace->Tag();
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