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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 ！9 R+ O& l: S k5 o: d
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[mw_shl_code=c,true]) y+ O+ M k+ M2 i$ k: {
//get the main body
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% y4 r3 C& L& b2 e" J ---- -----, d& g/ \& o* |2 m: f- ^8 [
{
. Y7 S3 l) `0 h8 S% ^4 u CATIPartRequest_var spPrtRequest = spPrtPart;
$ P; I* g" Q7 V) O* {8 S( \ if (NULL_var == spPrtRequest)2 h" P0 B: e% {) ?$ ~
{
% t! h5 y0 m! x& @7 z5 Z printMessage("NULL_var == spPrtRequest"); I4 h( u J# c0 b$ j1 v$ P
return;9 H5 _2 M3 v9 n6 Y' ]6 P
}
% Q6 N1 e P4 w: h CATBaseUnknown_var spMainBody;
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- C9 f- ~7 Z+ S. ? rc = spPrtRequest->GetMainBody("",spMainBody);0 u7 {% o% r \7 s5 L( \ ~! o
if (FAILED(rc))
6 d* n) N; }+ L2 m {
# [9 O6 \2 H; l, J, d. f6 r# N. V* G, \ printMessage("Failed spPrtRequest");
& D& p' a2 c4 V, @6 T' f9 w# b return;$ P# [, k$ J% Y; }2 O' H
}
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8 q' t n: i6 n# J CATIAlias_var spAliasBody = spMainBody;
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7 m. _. I3 y0 s* i3 M printMessage("Main Body" + spAliasBody->GetAlias());
* s; n2 R) Q$ [2 n4 {
7 t% Z) K3 J1 W; U: y' A CATIBodyRequest_var spBodyRequest = spMainBody;
% W: _; w! q" s9 O; ?4 P1 A% a. o if (NULL_var == spBodyRequest)
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printMessage("NULL_var == spBodyRequest");# q" l! ]# i* Y" f, N
return;: B0 t5 p$ S; z# b# R
}
7 P5 R {; S% v0 z% x& [ CATLISTV(CATBaseUnknown_var) ListResult;
" e. F, d! D; d rc = spBodyRequest->GetResults("",ListResult);
/ p! m. u9 L' V" j, S; @9 g if (FAILED(rc)|| 0 == ListResult.Size())7 ]# v- N# X) V$ A/ N
{% `( `+ E; O* T7 A/ `
printMessage("ListResult failed spBodyRequest");8 s8 l3 p+ p3 {4 a) J2 W
return;) ^6 _$ W& _' Z6 A2 i5 `& l2 y
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CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];
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) ^' D9 `) @# b5 N3 Q) P if (NULL_var == spFeatureResultGeomElement)6 [" ? ^6 K. M3 a
{
) S' w) x4 V* D9 J. z) y printMessage("NULL_var == spFeatureResultGeomElement");
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CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();
$ p3 p' c0 }7 K4 O5 j if (NULL_var == spTopoBody)
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printMessage("NULL_var == spTopoBody");3 H A- P3 P, t. j
return;
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CATLISTP(CATCell) cells;
, ^# e3 J4 X8 `! O: M- Y7 w8 m% T spTopoBody->GetAllCells(cells,2); //get all the faces
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. c7 O, w1 |; q/ b- y3 g3 `! Y char msg[256];# r4 b. [" ~& P! h7 Z& T
sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());& h; F9 O- R* _) R) P& }' I
printMessage(msg);
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* _; V: U9 Q$ R3 g6 R7 c for (int i = 1; i <= cells.Size();i++)
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CATCell_var pCell = cells;2 g4 _" D" Q# @, h
if (NULL_var!=pCell)
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CATGeometry *pGeometry = pCell->GetGeometry();' `( m7 _6 _/ W7 Z1 {; w9 ]) O. x
if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face
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: j0 _" R0 J5 p' }( q //CATMathPoint CenterPoint;7 U3 [ A9 }0 S; k! r9 r$ p
//pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);' f( T7 p* G9 q
//sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());
0 ^& `& q8 r. n! i% N //printMessage(msg);5 H& x3 F7 W+ a
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CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);
; M& a0 w \ |+ A2 S7 x if (spBrepAccess != NULL_var)9 _5 |* C1 M3 w. Y
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//assign color
3 J( E3 H y- J5 C3 H CATIVisProperties * pVisProperties = NULL;
0 i. U8 d0 p: k6 e) T rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);+ u. e- S% R- n$ O% u
if (SUCCEEDED(rc))' q% z- Y. F0 P
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CATVisPropertiesValues ivalues;
' m6 u5 N% d9 e3 [ d/ t& Z ivalues.SetColor(0,0,255);* |3 s: ^9 v: v4 _8 X N
pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );3 s! r5 S9 f% `1 t" g# A
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pVisProperties->Release();0 i3 ?( ?, H6 K: S/ {! K; L
pVisProperties = NULL;; c8 M' G! Y# ^! v+ i* W2 q
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# J) L) f" t# F# A# J //get alias name and persistentTag to add in the list
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}. [& l D9 e# D
+ [5 h z( N6 c" w // End of User Code- f, m1 n' u5 S$ w$ Q q- G
}
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