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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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[mw_shl_code=c,true]
% c2 M/ V6 l' b% K4 \- X //get the main body
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0 U6 r4 Y3 o. r; X# C1 \/ x ---- -----
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CATIPartRequest_var spPrtRequest = spPrtPart;
/ I/ J$ y7 F3 Q0 E+ N* m if (NULL_var == spPrtRequest)
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printMessage("NULL_var == spPrtRequest");
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CATBaseUnknown_var spMainBody;/ a$ P# ?7 W% }
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rc = spPrtRequest->GetMainBody("",spMainBody);
, H$ c# p0 y0 S4 h- y) E. N if (FAILED(rc))
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/ j, c8 ~- ]( Z( c& ~ printMessage("Failed spPrtRequest");
) w& t' |1 Z; d) L0 l return;
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CATIAlias_var spAliasBody = spMainBody;6 o o$ Q9 l7 N% `( A' y
6 U3 i2 }6 V! @' B printMessage("Main Body" + spAliasBody->GetAlias());2 {: ~* [' C& R" v0 S" b+ c* u
" d [9 E9 K* g' G/ X2 \# z CATIBodyRequest_var spBodyRequest = spMainBody;
1 k" R3 f( b7 R! z if (NULL_var == spBodyRequest)
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, A3 Z- f; D* Q4 O printMessage("NULL_var == spBodyRequest");# z$ E) w4 x3 I1 T/ m- M% W
return;
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; s1 n# f J& e) x9 U- }$ ^ CATLISTV(CATBaseUnknown_var) ListResult;
$ E% G" u. ^. t: s. D rc = spBodyRequest->GetResults("",ListResult);! C4 b+ g7 Y) {$ ~7 v, H+ |; }, l
if (FAILED(rc)|| 0 == ListResult.Size())
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4 l( l* {. T5 Y" H: y8 b4 |+ H printMessage("ListResult failed spBodyRequest");
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}
7 u) Q4 e2 \" ?5 ^2 P CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];( S) V) }9 y3 }
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if (NULL_var == spFeatureResultGeomElement)
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printMessage("NULL_var == spFeatureResultGeomElement");: V: Q4 P$ l' w& m4 j9 ^) s! n
return;( [2 `" d9 f% e( P9 J
}
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CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();
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/ e0 f8 W' A1 A' C- H6 ~. E printMessage("NULL_var == spTopoBody");. ?: e+ v: F3 W# f
return;
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CATLISTP(CATCell) cells;
5 K- d$ j7 K4 n5 e spTopoBody->GetAllCells(cells,2); //get all the faces: C2 T* q, S+ Z$ y, q9 v3 B
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char msg[256];9 [0 C% k0 H2 E3 I/ \6 R
sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());' ~% a. {$ R5 k! o
printMessage(msg);$ x# M9 ]. f/ S$ e' F5 x; d$ M+ h b
4 b# r! |% H7 _6 ~* k1 T N! @ for (int i = 1; i <= cells.Size();i++)
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1 D+ S4 ?6 B* W CATCell_var pCell = cells;! k; T: B8 O i* r( R
if (NULL_var!=pCell)
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CATGeometry *pGeometry = pCell->GetGeometry();( u3 h2 r) O0 ]: [! e# Q/ F
if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face
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//CATMathPoint CenterPoint;* J0 V' ~/ F' @ ^( ?
//pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);/ E; L: s. T- {+ D7 u+ d1 i, J( a& }
//sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());# j9 I. k4 }; N; q
//printMessage(msg);/ ?1 }* D1 |! `
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CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);5 G' p- T/ x8 `9 D
if (spBrepAccess != NULL_var)
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//assign color . H# M7 c; e& X7 m
CATIVisProperties * pVisProperties = NULL;
/ I3 T1 N8 _! }/ \/ j2 @+ _( V rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);7 O# V# h4 l& B; t9 Q, |. G; p
if (SUCCEEDED(rc))& [7 p% @, H6 H/ \2 H0 p( s- m, E
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CATVisPropertiesValues ivalues;
A" S# \1 Q9 M5 b ivalues.SetColor(0,0,255);
$ H, ^% }9 F) f* N7 U, x pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );1 T; M' I5 L; A$ ?
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pVisProperties->Release();
! x4 J" Y2 O$ C pVisProperties = NULL;
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//get alias name and persistentTag to add in the list
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}
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// End of User Code; r$ P* b% u% _
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[/mw_shl_code]
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