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X0 A) e7 W \+ c6 n* e, j: |NX二次开发源码分享：查找体中最大的面积
- @7 L- I. c" l! U: J) P Z/ }2 C2 B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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8 R( j; u% |! T% O0 x5 x6 H, s- #include <NXOpen/Session.hxx>8 _2 @1 N5 O8 B0 P; ~5 o; q2 ^
- #include <NXOpen/Part.hxx>: K: Q+ N( N) b* }3 N4 j
- #include <NXOpen/ParTCollection.hxx>
4 L, A5 ^. X! O1 i2 Y; [ - #include <NXOpen/MeasureManager.hxx>
. M9 n6 `$ ^ i. ?5 t E* R - #include <NXOpen/MeasureFaces.hxx>' j7 k$ Y- |, c5 N+ q% p8 B+ h
- #include <NXOpen/NXObject.hxx>- F& V2 a, t6 _5 u5 Y% d0 N
- #include <NXOpen/NXObjectManager.hxx>1 t6 o' K) c) k# F9 a
- #include <NXOpen/Body.hxx>; X# B* v4 b+ {6 G
- #include <NXOpen/Face.hxx>
- f; h3 G1 g$ ]/ _8 l0 c& x) o - #include <NXOpen/Unit.hxx>
1 R' I s1 ~0 L) a8 P) t - #include <NXOpen/UnitCollection.hxx># j0 l% `0 X0 ^
- using namespace NXOpen;
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- static tag_t ask_largest_face_interop(tag_t body_tag)
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+ \" C" i" @& g - Session *theSession = Session::GetSession();9 t6 {. b9 J( j* Z% y& s
4 a( B0 O1 R3 P( C% A, q- Part *workPart(theSession->Parts()->Work());
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- s/ w. c) |/ u- Unit *area_units = workPart->UnitCollection()->GetBase("Area");0 a. k0 k" \1 ?# \/ x/ j1 G; M: |% Z3 m3 c
- Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));
; y+ W' I6 V, r( R# {' R# D6 R - std::vector<Face *> theFaces = theBody->GetFaces();
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& o/ A+ {: U6 a0 z- b- double bigArea = 0;
. W! j' \) g0 u" F! Q# F7 Y4 z - Face *bigFace;
. f' [( ]7 `; i* O8 m9 {' i+ P - std::vector<IParameterizedSurface *> theFace(1);7 i3 l9 I# T+ Z! j" y
- for (int ii = 0; ii < theFaces.size(); ii++)+ O' y+ {4 v. s' n) v7 M$ G4 u$ R
- {
3 D# B1 d9 r3 X5 W* h( @& @" T - theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);! ]9 \* G3 Z* S6 F: T o
* M, T+ j$ r2 q4 R: A- MeasureFaces *theMeasure = workPart->MeasureManager()->
; i! O; y1 X m2 ?2 {' S - NewFaceProperties(area_units, length_units, 0.999, theFace);, a$ w: e% t- K! g% c* {
: w$ I8 v2 A! f/ B* _4 G- if (theMeasure->Area() > bigArea)
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3 x( w. e: J0 S - bigArea = theMeasure->Area();0 q4 t$ E" I( `1 X8 z' F
- bigFace = theFaces[ii];
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- return bigFace->Tag();
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