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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]' e0 K+ i$ h$ f9 o$ @3 ~# D
//get the main body2 R, l( _* u0 @- Z
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---- -----
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% j8 ~ A3 a: t! n3 L7 E* H0 z CATIPartRequest_var spPrtRequest = spPrtPart;9 \: s# |% C# _" s7 i
if (NULL_var == spPrtRequest), m$ M4 ]) J! g4 \$ z' x
{
2 v. @. G. c: _9 P3 u, y1 C+ }9 r printMessage("NULL_var == spPrtRequest");
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}
- S( h1 F9 ?) g; w5 T6 y CATBaseUnknown_var spMainBody;
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. u8 B* b' ?# F; `) S rc = spPrtRequest->GetMainBody("",spMainBody);" a' f% m, \3 c! o# }
if (FAILED(rc))1 Q8 K0 m. q) l6 P
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printMessage("Failed spPrtRequest");
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}
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CATIAlias_var spAliasBody = spMainBody;
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printMessage("Main Body" + spAliasBody->GetAlias());
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CATIBodyRequest_var spBodyRequest = spMainBody;1 c D( n6 K+ \5 U3 S7 r
if (NULL_var == spBodyRequest)( s# z! F5 J* r( g1 `( Q
{
! B, N, v0 A7 _9 U! q; s printMessage("NULL_var == spBodyRequest");
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CATLISTV(CATBaseUnknown_var) ListResult;
6 r: X' B3 f0 H: U rc = spBodyRequest->GetResults("",ListResult);- j# K5 t& f z+ D% Z, {2 U2 V
if (FAILED(rc)|| 0 == ListResult.Size())4 U- l9 m/ j/ m& R
{
5 u* C; z, p- n" v0 j6 T printMessage("ListResult failed spBodyRequest");
. a* k+ {6 C: P3 H4 v& H return;
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; x( g% L0 ^) a& K8 { i6 Z, j CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];
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! }% g( z% j9 G# {5 i if (NULL_var == spFeatureResultGeomElement)
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printMessage("NULL_var == spFeatureResultGeomElement");0 A! M t7 J) z1 J4 ^! T
return;5 @2 U7 {+ U9 H/ s0 C+ U" f
}
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# [9 J4 [; z3 v! B2 k* z CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();
3 E0 ~: O# r+ E9 n; P+ R if (NULL_var == spTopoBody)( H N8 ]' h o* d2 @' Y
{
- ^0 ^0 G' w/ S5 p8 Y4 y printMessage("NULL_var == spTopoBody");
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}
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- r) O' J( c- w3 ^' i7 U CATLISTP(CATCell) cells;+ j* u* S( ]; ^ b1 u
spTopoBody->GetAllCells(cells,2); //get all the faces: t0 [% } b; M9 q+ F7 h+ T
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char msg[256];( L0 G; J6 K( Z0 t0 t
sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());& s9 Y+ W5 x2 P
printMessage(msg);6 Y! O6 X9 y$ P3 p0 _
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for (int i = 1; i <= cells.Size();i++)9 ?3 ^! N0 |6 a/ f
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CATCell_var pCell = cells;& w$ s8 [ O# S- A6 X
if (NULL_var!=pCell)7 E8 l! K% {" U4 L! s! g9 U
{
) W. Q; ~* w1 q, @3 d CATGeometry *pGeometry = pCell->GetGeometry();; g/ M- y5 O Y* X$ W8 x3 F! A
if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face" r$ O! {/ i7 Y* q( p
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//CATMathPoint CenterPoint;
% L4 k3 a* i$ r; Q1 ^ //pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);; z5 e1 a( I, G! [, Q
//sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());
+ m0 T* \8 y U# O6 c8 d //printMessage(msg);
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. Q q9 L h" D+ t4 \& Z0 F+ e CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);
?# l+ Z( G X6 U1 b if (spBrepAccess != NULL_var)
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/ M! E: K) D" ]2 N. P; M //assign color
; s" L3 c, S8 a1 n CATIVisProperties * pVisProperties = NULL;+ Z H }' U2 a, f- y' F' X; e' \
rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);+ o; D5 J" L9 j
if (SUCCEEDED(rc))% R' C5 m, q7 D" d' p0 Q2 u
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CATVisPropertiesValues ivalues;
7 K6 Q: N5 S$ V' F$ O ivalues.SetColor(0,0,255);
/ P+ ^6 |2 z, j; S1 k pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );
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pVisProperties->Release();8 p" u* F5 ]3 F) D9 @2 Y
pVisProperties = NULL;
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}
+ k4 b. t' ~: b7 o! m7 K- r //get alias name and persistentTag to add in the list
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" L2 Q Q0 D( c' \; P v P7 o // End of User Code
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- A$ M, [8 A# C1 y; P% T[/mw_shl_code]
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