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NX二次开发源码分享：查找体中最大的面积
! G3 w+ R0 y; x$ c通过MeasureFaces 下的area方法可以得到面的面积进行遍历查询& I3 ?1 [4 r# ?0 [9 C
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' s& q+ [; m1 t( b! R8 d" f- #include <NXOpen/Session.hxx>
3 I9 A3 ^& s+ G: D3 | - #include <NXOpen/Part.hxx>
, h0 _+ v7 O k - #include <NXOpen/ParTCollection.hxx>
- k+ g/ `: S1 Z {+ B" H - #include <NXOpen/MeasureManager.hxx>9 T3 p; }- E' i) ?: K7 t
- #include <NXOpen/MeasureFaces.hxx>" H! D1 q* C9 w' \- W+ J
- #include <NXOpen/NXObject.hxx>/ s. F! r1 E1 v( J/ m( x
- #include <NXOpen/NXObjectManager.hxx>
; V$ i; ?, U1 o - #include <NXOpen/Body.hxx>% {$ v7 | P, K- d) g" t
- #include <NXOpen/Face.hxx>; j8 o9 u- T' G1 ?" f& K
- #include <NXOpen/Unit.hxx>- w0 c) C+ r* n
- #include <NXOpen/UnitCollection.hxx>
" v0 Z }$ h- Z2 g( }4 e" B - using namespace NXOpen;
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- static tag_t ask_largest_face_interop(tag_t body_tag)
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- Session *theSession = Session::GetSession();; C4 G- o% t) Y- _+ H
7 t. E# ^ o4 u; }- Z N4 F- Part *workPart(theSession->Parts()->Work());6 ]* r9 j- `4 z: e6 V- H
4 W% h3 e; Q+ ~0 ?2 I2 ?% n- Unit *area_units = workPart->UnitCollection()->GetBase("Area");
$ [, R9 x6 W, Y" e9 g) t1 f8 I7 w - Unit *length_units = workPart->UnitCollection()->GetBase("Length");( q" p( o% A, }% I
) ^5 V- x. Z& ~ P0 i5 @3 L; w; e- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));
! Q$ I* q0 k3 c7 y0 `. O# |( P' S - std::vector<Face *> theFaces = theBody->GetFaces();
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) f: I0 y% i6 V: H- double bigArea = 0; l# C, k+ @! O2 N; i1 E6 C
- Face *bigFace;; {" ~+ [! T/ {$ Q( Z6 ^0 G
- std::vector<IParameterizedSurface *> theFace(1);; Q! {" k5 U. a- i ~* R
- for (int ii = 0; ii < theFaces.size(); ii++)
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4 ?/ c7 F1 n0 N! O. C! C - theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);
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- MeasureFaces *theMeasure = workPart->MeasureManager()->( v3 Q7 J" N6 S2 L% h. ]% ^' I
- NewFaceProperties(area_units, length_units, 0.999, theFace);. q5 l! m- h$ i6 ?; j/ M
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- if (theMeasure->Area() > bigArea)
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- bigArea = theMeasure->Area();$ _& Z# @$ e! @, E
- bigFace = theFaces[ii];3 ~) ]. v* c4 n- ]! O1 K2 K+ J/ q
- }
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& ~, V Y( p, ?. @4 }4 z- return bigFace->Tag();
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