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个人认为,比较常见吧,如何遍历得到几何体,通过几何体获取到拓扑体,通过体获取到几何元素,通过几何元素获取到单元,单元再到几何进行判断面的种类,对于BrepAccess的获取需要借用 全局函数 CATBrepAccess !
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//get the main body% S; t2 T; j" B5 x! g G7 k
7 p8 S; q z' M ---- -----) E' K/ V4 E* d6 Q
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CATIPartRequest_var spPrtRequest = spPrtPart;
2 {, u5 Y1 W. h, W$ n if (NULL_var == spPrtRequest)
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printMessage("NULL_var == spPrtRequest");
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}
# Y9 C& a" f2 v7 m. i# O CATBaseUnknown_var spMainBody;) V. {# t7 }% c' @# n
9 e0 z! q" b: G rc = spPrtRequest->GetMainBody("",spMainBody);) Q9 |0 Q) i6 U: {# g9 E7 l' h- @
if (FAILED(rc))
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0 ]9 k4 T3 P4 j! [6 ` printMessage("Failed spPrtRequest");
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}
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CATIAlias_var spAliasBody = spMainBody; P) M+ u$ \) C) M3 K
/ K4 s/ w) d8 J; G3 ~1 F1 g. B printMessage("Main Body" + spAliasBody->GetAlias());
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CATIBodyRequest_var spBodyRequest = spMainBody;7 O. l" V, G5 ] f; r5 K6 _1 \
if (NULL_var == spBodyRequest)# ~& n5 W: g" c
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printMessage("NULL_var == spBodyRequest");& I2 X( W! \+ E8 }! o
return;
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0 T7 C0 k% W. E2 i* J7 r& Q CATLISTV(CATBaseUnknown_var) ListResult;
7 E( a" @$ a/ Z3 |7 q3 t4 S8 A# z rc = spBodyRequest->GetResults("",ListResult);
( c) c0 k# S& R% S9 D if (FAILED(rc)|| 0 == ListResult.Size())4 ?! V7 \6 B0 z. O/ _% l
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printMessage("ListResult failed spBodyRequest");3 p% I% F" ^+ y: q! }3 S) Q
return;
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/ g* h) ?+ s: p1 O# I9 m CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];; u6 C. S2 l( e
& A+ q/ I# r1 G! ^( |: \7 X if (NULL_var == spFeatureResultGeomElement)3 r* K- `- s+ x# b3 p* ?
{
$ K+ ~4 k2 E: H( E: ]( O; m! v9 o printMessage("NULL_var == spFeatureResultGeomElement");2 W. j* M. T( L( Z: j) c
return;
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CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();; c' G/ f6 _, `0 x: ^
if (NULL_var == spTopoBody)
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printMessage("NULL_var == spTopoBody");* o B! P$ J; h" o- [" W9 Z
return;; ?5 I9 | w( O% l K
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5 w( S0 P+ x$ R! s. g CATLISTP(CATCell) cells;; h! }* C* u* L* L# i8 v% L
spTopoBody->GetAllCells(cells,2); //get all the faces
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sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());
( r. d# ^# N. a printMessage(msg);# u S: N& C# j5 c @# t
! h/ q4 `3 ?1 x" O5 `$ w for (int i = 1; i <= cells.Size();i++)
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CATCell_var pCell = cells;
, n$ g; h. L q1 ]6 e% a- v if (NULL_var!=pCell)( t! c4 [+ P# x) b
{
; j. p/ u3 |* i' K B4 U CATGeometry *pGeometry = pCell->GetGeometry();
7 D5 O2 [8 D1 d if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face
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- i9 V" ^4 ~9 Q) C8 [0 x& R //CATMathPoint CenterPoint;8 u Q) W4 A6 {
//pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);
8 @9 O- q- E$ c. Q //sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());
0 Y: X7 w, \8 B. s //printMessage(msg);# a# {- j0 b! X. U! V8 D
, E0 B3 _1 u# B CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);
& m5 }8 Z" z6 c& V1 J$ n# b if (spBrepAccess != NULL_var)( @: J( _; m; A0 ~0 u% z
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//assign color
0 c) V: w8 ?/ _+ s4 y/ |7 f6 Y CATIVisProperties * pVisProperties = NULL;
0 j* T# r! l( W' E' v rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);. k& r2 e3 E5 {( n: j* P1 s
if (SUCCEEDED(rc))
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) h( h& D9 w$ x5 ^% ^5 ~ CATVisPropertiesValues ivalues;( A |" J/ l8 S4 A* ~" R
ivalues.SetColor(0,0,255);
5 a+ p, \- @- k9 f pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );
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0 }8 E; U6 E( \ pVisProperties->Release();
8 ~( p7 a5 Z3 S' y7 o pVisProperties = NULL;% p G. ]" ?2 v1 L8 \
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7 u' U5 ?' I; |: o6 V //get alias name and persistentTag to add in the list
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// End of User Code1 W$ @3 b+ I# h Q; o s- ^
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