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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 ！8 @( t* q5 Y, n
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//get the main body
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---- -----. h/ Z7 X% q7 g
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CATIPartRequest_var spPrtRequest = spPrtPart;. ?& C8 }& x2 Y2 q
if (NULL_var == spPrtRequest)
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printMessage("NULL_var == spPrtRequest");
! B9 W1 f# A. W7 U6 Z4 l return;
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CATBaseUnknown_var spMainBody;
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rc = spPrtRequest->GetMainBody("",spMainBody);: V8 s6 b4 \6 _' f) L
if (FAILED(rc))' P" }: U U; I) c0 v3 g9 I( H
{
8 L& s0 I3 O" M/ w( ^ printMessage("Failed spPrtRequest");( R2 o) L- I2 O/ s
return;
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) V( X& x9 G2 M6 j( z CATIAlias_var spAliasBody = spMainBody;
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printMessage("Main Body" + spAliasBody->GetAlias());
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" |3 Y- u8 y2 r! T% Y CATIBodyRequest_var spBodyRequest = spMainBody;: J7 a; E/ \6 m- g* z
if (NULL_var == spBodyRequest). |5 P/ a' w) T
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printMessage("NULL_var == spBodyRequest");
( P" ~% Q% T0 M0 x return;
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CATLISTV(CATBaseUnknown_var) ListResult;5 v, I; }6 R$ U$ @# v, g8 ^7 ]
rc = spBodyRequest->GetResults("",ListResult);
8 N) n/ i4 z' y' t! {! ~ if (FAILED(rc)|| 0 == ListResult.Size())
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2 W X; Q/ C! p, F8 s6 q printMessage("ListResult failed spBodyRequest");) n9 ~: ^% w8 w6 ^% U0 I
return;1 D6 h" T# }, N" L0 d. o
}
; M$ Q# n, R% D. | CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];& m7 l4 X T; p% \) P c. E( B
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if (NULL_var == spFeatureResultGeomElement)
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* \( S9 j; s0 p z* h printMessage("NULL_var == spFeatureResultGeomElement");( b+ p, P# f" x: G6 n" Q
return;8 y* k2 B- v! L3 ^$ h
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CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();
+ j4 Q1 _3 f ]% \1 E/ Y3 ` if (NULL_var == spTopoBody)6 S9 o6 p7 ^" B2 u+ t f
{
* ~; h1 f" p4 s6 X) a printMessage("NULL_var == spTopoBody");) p* i) {4 T1 f9 |) {
return;
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" r7 R# U/ y7 z- E! {0 R8 Y CATLISTP(CATCell) cells;
) b, D' E4 c0 ~ spTopoBody->GetAllCells(cells,2); //get all the faces
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char msg[256];
3 {& x: B$ n( }2 g$ Y4 G; m sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());9 u" y+ o3 F x6 a/ t
printMessage(msg);; G$ Z7 b' m9 T! e3 B, h
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for (int i = 1; i <= cells.Size();i++)
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; j- R. }6 b. ~/ z7 p( C, a$ s CATCell_var pCell = cells;
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CATGeometry *pGeometry = pCell->GetGeometry();
# l9 B2 s' k" J2 j7 ? if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face
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( Z2 m' R! @% E8 T8 w //CATMathPoint CenterPoint;
0 J9 u' {: U& ], A/ K K //pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);% `& w7 Q4 U6 y- ^: x, ]
//sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());
' x4 Y- Q# E! C! b" F3 B //printMessage(msg);! B* u5 J: ~/ [2 F K6 {& v
$ v2 O5 A* Q7 X' |8 ?& k CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);1 }$ E/ H N" L. c% M' m# s
if (spBrepAccess != NULL_var)
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! v- {2 o) j( l3 I9 B //assign color * v6 i) C+ i& C' S0 J% @" V0 l
CATIVisProperties * pVisProperties = NULL;
, E9 C4 I: D0 \$ f6 F, N0 W rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);
6 }5 p p$ I; Q& h! ~' \$ C if (SUCCEEDED(rc))* L/ w" e" P0 a# d: q8 Q7 Q. O
{
; j, W9 T$ R7 h7 \- v0 X, r; t CATVisPropertiesValues ivalues;
$ W; x; o) `7 N2 D! ^ ivalues.SetColor(0,0,255);
* G9 ]' B4 o$ Z' R: ]" S: D* | pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );/ F1 m' A! N9 S* J
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pVisProperties->Release();6 ^9 f/ w/ N1 S8 c& J @ F
pVisProperties = NULL;; y! A- Y& v, o
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//get alias name and persistentTag to add in the list
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// End of User Code
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4 N+ m3 e% o, D' e[/mw_shl_code]
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