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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 ！) W& W0 J+ {0 G5 i: G! p
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% r" H B( ^2 Q //get the main body, k0 e4 ^# V( P+ \& t4 O
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---- -----
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( p1 t+ C. A5 `7 Y/ M+ _5 i' l CATIPartRequest_var spPrtRequest = spPrtPart;
/ F, }0 s: {3 k$ k if (NULL_var == spPrtRequest)
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printMessage("NULL_var == spPrtRequest");3 c* j% A2 P i0 A; Z w: @
return;
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; j- {' p4 n$ s CATBaseUnknown_var spMainBody;
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rc = spPrtRequest->GetMainBody("",spMainBody);
6 o8 _/ E: F8 P) _ if (FAILED(rc))
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0 V# E8 W1 j( G2 c0 Q, e4 c/ h printMessage("Failed spPrtRequest");2 i: u& S( a7 V( ^& ~( H* ]
return;
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CATIAlias_var spAliasBody = spMainBody;0 \: A8 x3 u! E4 A
, V4 K9 `+ M" @, G- I4 w printMessage("Main Body" + spAliasBody->GetAlias());
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CATIBodyRequest_var spBodyRequest = spMainBody;
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{
3 z# ?3 g# O8 }! _( F printMessage("NULL_var == spBodyRequest"); D$ X" ^- w( x; h6 a8 F* I0 J5 X, d
return;3 I# N# C, w. p a
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CATLISTV(CATBaseUnknown_var) ListResult;6 n" N( M& _# A$ I* K
rc = spBodyRequest->GetResults("",ListResult);
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printMessage("ListResult failed spBodyRequest");$ Y! r" i9 v K5 t6 o2 {* q
return;
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; o+ I: Q1 l! J, J4 ]% o! T CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];
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if (NULL_var == spFeatureResultGeomElement)1 R% m# V2 W8 N/ y9 m
{
+ X, m0 I: f y9 ?5 K printMessage("NULL_var == spFeatureResultGeomElement");6 Q, {( _0 Q) u, L0 M/ S7 y- G
return;
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. O {+ S9 ^9 A8 q. n- g CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();2 R0 w: ?+ V% c2 j7 u; [1 M* r6 J
if (NULL_var == spTopoBody)" _5 f' ?( S& Z
{
3 g( Y) W/ {! `1 w& B* y, M printMessage("NULL_var == spTopoBody");, H; I$ z' w6 n( @
return;& v3 L, q- x) O0 o7 M0 W) O
}
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' S) Q' \. A& f& l# |5 [5 y CATLISTP(CATCell) cells;, V) } V( F4 o" n' ~0 a3 i$ N! _
spTopoBody->GetAllCells(cells,2); //get all the faces
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char msg[256];6 y1 S/ G$ w6 ?7 N4 Z
sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());; B( [0 Z+ ^8 _2 @: ^- R% e
printMessage(msg);. d& Z, d4 h! W
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for (int i = 1; i <= cells.Size();i++)/ M. P! z- p. `5 f9 a
{
" H6 b/ K; g6 p* J! u @3 { CATCell_var pCell = cells;5 K$ `% U8 u% J- Y4 h4 X) \
if (NULL_var!=pCell)6 ^, L& b; w! r! `# w3 {$ f& X
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CATGeometry *pGeometry = pCell->GetGeometry();5 O( @4 q: R8 z0 Z5 d3 ~) x/ |
if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face0 ^7 \3 \/ v) s. p n3 z
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//CATMathPoint CenterPoint;! ]* t; f- S% h. \
//pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);
1 x0 a5 S, V( F# j9 m //sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());
% @. b; t+ j9 k) S3 s% j6 Q //printMessage(msg);3 t! o( p/ V8 F7 c
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CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);: S1 T3 @3 E! P: T M
if (spBrepAccess != NULL_var). y% S5 n9 c6 \! f Y" g- B3 F( e
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//assign color 0 p% p- O* P# c
CATIVisProperties * pVisProperties = NULL;
1 v5 A3 v& t+ S rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);
_# \ P, \7 L' |2 n/ M if (SUCCEEDED(rc))
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& O9 ]* a9 p; c' Z6 h CATVisPropertiesValues ivalues;
( G# d0 E% J( e2 X2 F ivalues.SetColor(0,0,255);! m+ W* _7 P: i' O
pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );
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pVisProperties->Release();* U' _8 T7 x" K) V) b. x. n, g# e
pVisProperties = NULL;9 X$ j2 o7 d: v% k V% O% l
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//get alias name and persistentTag to add in the list1 [: i( C! b+ W ?" R0 p$ g9 e
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}
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5 C; o7 C5 K$ z4 E // End of User Code
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$ [7 t& I) r7 }5 F P+ I7 N[/mw_shl_code]
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发表于 2018-1-15 14:21:37
