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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) \1 |$ ^0 @5 h5 H4 f
* J1 @' J- Y8 c6 g5 P ---- -----
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* @* g% D5 L* `6 B7 t6 X3 e' T4 c$ D CATIPartRequest_var spPrtRequest = spPrtPart;2 w) w4 b0 r5 ?' V6 G i" G( u0 Y
if (NULL_var == spPrtRequest)
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A) B, [9 \! _ printMessage("NULL_var == spPrtRequest");
% I8 ~5 N9 n- b% K% {. O return;
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9 }3 y- |* ^9 r, S. q: N# D7 V# Y9 @ CATBaseUnknown_var spMainBody;5 k6 J8 d2 I* Q+ \0 H3 V `' m
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rc = spPrtRequest->GetMainBody("",spMainBody);
' ^1 b' H5 z6 S0 E7 d/ P if (FAILED(rc))& R9 D. \1 W( Z0 m# S9 l" }
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printMessage("Failed spPrtRequest");: F% D3 B, ~* i/ T5 X3 b# ]. }8 i
return;
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CATIAlias_var spAliasBody = spMainBody;# Z8 [) ^9 g; x
/ y4 P2 H4 W; r printMessage("Main Body" + spAliasBody->GetAlias());
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CATIBodyRequest_var spBodyRequest = spMainBody;
; \0 W- f0 e6 s) D1 p if (NULL_var == spBodyRequest)
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) o7 N6 m' {' R7 y) d printMessage("NULL_var == spBodyRequest");3 O6 O8 n3 {4 {/ Y
return;
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. K. t1 [. A! q5 r$ S7 W% _ CATLISTV(CATBaseUnknown_var) ListResult;3 m* k9 _0 q9 i' ?
rc = spBodyRequest->GetResults("",ListResult);' A0 v6 V7 r3 h; Y: d/ Q9 d
if (FAILED(rc)|| 0 == ListResult.Size())
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printMessage("ListResult failed spBodyRequest");' [ X9 g+ y1 V( Q( o9 ^
return;
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CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];
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if (NULL_var == spFeatureResultGeomElement)/ D" }) D! G6 p) t# ~
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printMessage("NULL_var == spFeatureResultGeomElement");) Y* j; E; r2 F% f8 i8 c
return;
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8 P3 D ` z: e" j& m CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();
3 m* p& p2 u7 R/ L0 M5 _ if (NULL_var == spTopoBody)
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" Z* u2 i- n% Q V0 S1 I% @' F! J2 c" [ printMessage("NULL_var == spTopoBody");
U/ |! c' o9 x7 D2 F return;
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9 |/ A! C: f& P6 F$ P" h( a CATLISTP(CATCell) cells;0 o$ H8 m9 b u- ~" d3 V/ s( r
spTopoBody->GetAllCells(cells,2); //get all the faces. p4 [9 ^* F5 ^5 ~8 {
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sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());
& D0 K2 @6 i9 D6 _ printMessage(msg);
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for (int i = 1; i <= cells.Size();i++)
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CATCell_var pCell = cells;
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CATGeometry *pGeometry = pCell->GetGeometry();
' q" S* h. ]+ [* H. u& Y! O if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face+ F/ j, p1 i/ l# I
{
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# _; ?9 T8 S' Z4 K2 b( I' \) Y //CATMathPoint CenterPoint;4 {# A1 S% A# f2 x9 t9 k
//pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);
, M" c3 n: |* K: _* g& P //sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());
3 _: P3 |% N5 ^; N, h" H //printMessage(msg);" i3 S, u; W4 u# p. ~3 z7 O$ T
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CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);
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//assign color / _" \. [ `3 T) I
CATIVisProperties * pVisProperties = NULL;; r1 s: t2 u0 z$ ]/ s, Z
rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);+ s' y; {' U* y: @8 B- P
if (SUCCEEDED(rc))
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, `7 ^/ i- v- X8 l( B0 | CATVisPropertiesValues ivalues;0 u/ _& \+ ^: {5 U# f( ^
ivalues.SetColor(0,0,255);
7 z3 a* k0 \7 V pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );' b; b$ k+ L! S* c: U
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pVisProperties->Release();
6 }4 \3 Q7 g* X- z0 o pVisProperties = NULL;# Y; }9 w2 _1 c/ W- H M
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//get alias name and persistentTag to add in the list5 I+ C0 j% Z% e3 [7 n J
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}
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b) b. R: w8 r. ~; d* d // End of User Code' ~' D2 T/ X) m" E2 i% s# E& q
}
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