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NX二次开发源码分享：查找体中最大的面积
$ E$ r, W E/ a9 }. l0 H+ A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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- #include <NXOpen/Session.hxx>
+ I5 p% z8 _- T+ B' W - #include <NXOpen/Part.hxx>
3 R5 z: u+ @ p3 m+ w - #include <NXOpen/ParTCollection.hxx>
9 r9 }1 e# j8 a% K4 x4 _/ G4 h - #include <NXOpen/MeasureManager.hxx>
# Y, H3 m& F h7 R8 s+ { - #include <NXOpen/MeasureFaces.hxx>
, L' F5 v3 r. [6 {) v: y3 @ - #include <NXOpen/NXObject.hxx>% T$ \8 U# j; V# Y9 d
- #include <NXOpen/NXObjectManager.hxx>
9 d/ T7 _# f6 D+ U, _" T# o - #include <NXOpen/Body.hxx>, t0 q- H& u" T! [ S! U% t2 A
- #include <NXOpen/Face.hxx>
p. B$ L5 a! y n$ R - #include <NXOpen/Unit.hxx>
# R2 R2 y, R7 l: H { - #include <NXOpen/UnitCollection.hxx>+ _8 ^4 ^. y3 N
- using namespace NXOpen; ^% F8 {$ _+ g* X* o* s
8 ^; e" k% ]& B% z" m) _- static tag_t ask_largest_face_interop(tag_t body_tag): L0 i: l# S( v7 O% K
- {
' _2 \( L: w5 z% {( n/ F" _ - Session *theSession = Session::GetSession();
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- Part *workPart(theSession->Parts()->Work());
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- Unit *area_units = workPart->UnitCollection()->GetBase("Area");
/ |4 R7 `6 L8 ^" A7 s3 s( d - Unit *length_units = workPart->UnitCollection()->GetBase("Length");
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+ A/ {; [& {3 ^( I( |- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));0 G9 }/ `& A1 X
- std::vector<Face *> theFaces = theBody->GetFaces();0 z; S% B" C9 O. f$ F% `
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- double bigArea = 0;: N6 h% d. D3 H4 s
- Face *bigFace;
8 H6 r' P& L0 X( r8 K' S - std::vector<IParameterizedSurface *> theFace(1);
. Q% V, V; [* X# S1 v - for (int ii = 0; ii < theFaces.size(); ii++)
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- theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);
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- MeasureFaces *theMeasure = workPart->MeasureManager()->7 \6 C9 r& u6 [0 T. J
- NewFaceProperties(area_units, length_units, 0.999, theFace);
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& r4 d8 l0 l O* _$ A- if (theMeasure->Area() > bigArea)& g* H3 z& v7 {; y. N) ?
- {
% Y- ~6 [' `+ D8 ?6 N/ J7 } - bigArea = theMeasure->Area();) c5 m4 D( H! z! n* j
- bigFace = theFaces[ii];
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- }
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- return bigFace->Tag();
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