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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 !2 v8 r W7 j2 I, x
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& \. j5 G% [+ ~; r* X3 g //get the main body# @2 Z. D4 X7 W0 p% F
% S! j \# n- {2 o8 T6 o/ z ---- -----5 j4 @* p0 `8 |
{
0 ]5 q. S# c# s6 ^ CATIPartRequest_var spPrtRequest = spPrtPart;
6 E- M/ s/ q( `; D9 Y9 l- C if (NULL_var == spPrtRequest)9 o+ Y1 ^3 w, E2 z6 s
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printMessage("NULL_var == spPrtRequest");8 C$ O4 \, Z& D
return;
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7 {( L6 r4 B& K) [, v7 r1 U CATBaseUnknown_var spMainBody;4 e1 n2 W* }% c
) W0 V9 z8 s, [( a' A rc = spPrtRequest->GetMainBody("",spMainBody);$ s W6 |1 h: o! l. u: i
if (FAILED(rc))% i6 ?8 |$ B; [4 S- X) W9 l
{
+ L& [' F. c& Q9 n' T% L6 R printMessage("Failed spPrtRequest");
- B7 D0 J" U9 u+ A0 M% s# P" ]/ n7 N return;
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CATIAlias_var spAliasBody = spMainBody;; G5 t# y' d3 k0 N! ^7 a
) o. _6 W$ _2 v+ |- r printMessage("Main Body" + spAliasBody->GetAlias());- P/ e& B' }2 u& E8 t: n7 k4 h
; L0 u( @* }$ ]& W& W! m CATIBodyRequest_var spBodyRequest = spMainBody;
8 n! n# i* p) a, l2 x8 A if (NULL_var == spBodyRequest)
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' A( G9 y- M% L0 C( o2 m4 l$ h1 E printMessage("NULL_var == spBodyRequest");! r. C; S8 M" x* ]7 T" n! D
return;, n4 x; F: V: @5 M7 h, r
}
! y2 ~$ o% }( T9 q2 M% R6 x+ K8 h) N CATLISTV(CATBaseUnknown_var) ListResult;
) e' u8 t+ u, K; J* U8 [1 l3 G rc = spBodyRequest->GetResults("",ListResult);
) o$ n6 d' H# y k; e if (FAILED(rc)|| 0 == ListResult.Size())
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# z* M; M/ B5 G5 h1 C' C printMessage("ListResult failed spBodyRequest");" f+ d* X% u, F" d6 q' j7 i! ?
return;
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4 u2 p, F" F7 h. |/ i1 H CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];
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if (NULL_var == spFeatureResultGeomElement)
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printMessage("NULL_var == spFeatureResultGeomElement");8 E% n) S) ~# P7 c) ~' X$ B
return;: o" T/ t0 y5 A- J$ i( z
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CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();
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printMessage("NULL_var == spTopoBody");* U$ R# K8 h( l
return;
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7 O: L9 H" N5 Y4 _ CATLISTP(CATCell) cells; x' |& R! O8 E% w2 N$ K
spTopoBody->GetAllCells(cells,2); //get all the faces8 x; V& H/ w* M6 z0 F q
, X0 }) r3 z, ?2 K7 F L- l& g char msg[256];
1 x$ U& v; i* v$ y sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());( a9 f2 E4 c5 B8 [$ w$ a( }
printMessage(msg);- f X6 B W- J( q! k
& p8 ]& w' p% f7 D7 W/ t for (int i = 1; i <= cells.Size();i++)) l' J- K8 A0 e
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CATCell_var pCell = cells;
6 L& R* l5 r. M7 y5 N if (NULL_var!=pCell)* A9 O T' x5 w) }! R
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CATGeometry *pGeometry = pCell->GetGeometry();! S* M. T4 P1 n% ^( \$ J
if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face
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* C) u: U2 |4 n* q //CATMathPoint CenterPoint;
& d: u0 h9 V. c4 V" K+ z //pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);6 J" N8 k1 M* {2 E2 u1 n: j
//sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());
; O6 O3 X p! P //printMessage(msg);
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CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);
7 j. A4 E: X7 U% v9 f if (spBrepAccess != NULL_var)
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7 ] [6 ?) P" @7 W* A9 }* z! k //assign color 4 J# B) {5 u: Q5 L& `8 D5 t$ o
CATIVisProperties * pVisProperties = NULL;9 e1 D7 K! d- ?. |
rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);
. O1 P! e' n% V* q; C, o if (SUCCEEDED(rc))
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CATVisPropertiesValues ivalues;
: S+ o7 h3 l3 [ Y: ] ivalues.SetColor(0,0,255);
+ z& U- Q& y, O* ^0 B pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );1 N2 @/ h' b4 E% h: f9 x
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pVisProperties->Release();$ [- S3 X; i, T" J% ^' f
pVisProperties = NULL;9 p1 q# ]$ I) }) n
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//get alias name and persistentTag to add in the list
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// End of User Code; F2 }( \" @' x1 h
}
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