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" j% c- N* x0 l. q9 c1 H; hNX二次开发源码分享：查找体中最大的面积
0 Y7 I1 ?, q3 U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>6 R$ U. @4 w' w3 G: W
- #include <NXOpen/Part.hxx># t& w. y4 x' O
- #include <NXOpen/ParTCollection.hxx>/ a4 v, W: y I4 G
- #include <NXOpen/MeasureManager.hxx>
. R/ h4 A3 J/ l% K$ d - #include <NXOpen/MeasureFaces.hxx>
" ] M, r) q& D- f# [4 a - #include <NXOpen/NXObject.hxx>7 j- i! ?/ d3 w! i( ^1 W# p
- #include <NXOpen/NXObjectManager.hxx>, m0 g0 S- _ n
- #include <NXOpen/Body.hxx>
( M# d8 E% _% m! b$ V, D - #include <NXOpen/Face.hxx>* i$ R. z$ x& X( D6 Q" J1 [
- #include <NXOpen/Unit.hxx>' \0 l+ \+ z) Y: ]( z
- #include <NXOpen/UnitCollection.hxx>/ _0 O3 I! k8 f/ T0 K% i
- using namespace NXOpen;
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5 f- }" A' x( {& g9 R- static tag_t ask_largest_face_interop(tag_t body_tag)# v- ^8 L7 x, H2 P# S; R
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- Session *theSession = Session::GetSession();
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- Part *workPart(theSession->Parts()->Work());
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- Unit *area_units = workPart->UnitCollection()->GetBase("Area");
& i' x1 C+ y& c$ j4 { - Unit *length_units = workPart->UnitCollection()->GetBase("Length");# A( _( p& j( {+ H9 m: y4 N
! Y/ y/ C* e# q: j+ R- Body *theBody = dynamic_cast<Body *>(NXObjectManager::Get(body_tag));9 R f6 x7 m# X8 ?6 \7 n4 T0 M
- std::vector<Face *> theFaces = theBody->GetFaces();
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- double bigArea = 0;: f9 L: @# n' ^+ `" t8 d# r
- Face *bigFace;+ B/ P" H7 \0 l) [% ^2 X o
- std::vector<IParameterizedSurface *> theFace(1);2 p* G. h* z1 L6 Y
- for (int ii = 0; ii < theFaces.size(); ii++)/ z, C; U5 r$ q* Y
- {
. ^& j6 _9 C' h- | - theFace[0] = dynamic_cast<IParameterizedSurface *>(theFaces[ii]);
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5 u/ P' f& E `1 e v- c- MeasureFaces *theMeasure = workPart->MeasureManager()->
t! p8 d. j. H% S% W' |" T' e - NewFaceProperties(area_units, length_units, 0.999, theFace);
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- if (theMeasure->Area() > bigArea)
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2 y9 J& N, w9 \6 z; Q7 T! p - bigArea = theMeasure->Area();
$ y1 Y1 O: D0 F. h" R# s( v ? - bigFace = theFaces[ii];8 V9 t8 F _% M+ Q) Q( G! m
- }
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- return bigFace->Tag();
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