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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 !& t# Q5 n, ^9 L1 V7 d9 T
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//get the main body
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---- -----4 j; f: d* G4 g: X: |: _
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CATIPartRequest_var spPrtRequest = spPrtPart;4 }9 u. R# x6 z J4 z
if (NULL_var == spPrtRequest)
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# T/ N+ ^5 B5 f6 m# `4 B: H+ v7 ] printMessage("NULL_var == spPrtRequest");; I& f5 o% A1 G [5 A! u" t
return;
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CATBaseUnknown_var spMainBody;2 ^- s5 D- @7 o6 G$ x1 U$ X
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rc = spPrtRequest->GetMainBody("",spMainBody);
( K" Q, Q9 b }4 t6 Z if (FAILED(rc)) _! O R$ s( d2 @ Y* P
{
( G6 \! U* y& q N# L' t printMessage("Failed spPrtRequest");& b( r& {/ ~. H3 J( k
return;
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! f, l9 o9 c7 t4 i$ A! X+ K CATIAlias_var spAliasBody = spMainBody;( @' a) r( M a; y
8 C. F$ ^5 ~5 e4 H printMessage("Main Body" + spAliasBody->GetAlias());
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CATIBodyRequest_var spBodyRequest = spMainBody;) o. e' p; J" g) [
if (NULL_var == spBodyRequest)
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printMessage("NULL_var == spBodyRequest");
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CATLISTV(CATBaseUnknown_var) ListResult;5 h! ?/ B% s6 p" @, Q
rc = spBodyRequest->GetResults("",ListResult);
- }9 h) D- h" s! o8 d& K if (FAILED(rc)|| 0 == ListResult.Size())
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printMessage("ListResult failed spBodyRequest");8 G' |6 Z1 f8 ~6 z
return;
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' U1 M- y9 N7 i# F( o CATIGeometricalElement_var spFeatureResultGeomElement = ListResult[1];0 {/ m* t" D. j. G$ R8 p4 s7 ?
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if (NULL_var == spFeatureResultGeomElement)" W- _$ z/ s( T# d0 J
{
1 l+ b- M0 ]4 R printMessage("NULL_var == spFeatureResultGeomElement");
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CATBody_var spTopoBody = spFeatureResultGeomElement->GetBodyResult();5 B6 z8 G: [; S
if (NULL_var == spTopoBody): I! J, L# Z, K4 b& e
{
8 W' ]; g# N' f; j L" u printMessage("NULL_var == spTopoBody");1 B2 X4 Y- M- c
return;7 W j$ D0 \8 o0 z M1 S
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CATLISTP(CATCell) cells;- t5 S' v- [- r7 L& K
spTopoBody->GetAllCells(cells,2); //get all the faces' d* ]2 @( I7 D
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char msg[256];
; |$ @ H8 f0 B2 G% M( F. _ sprintf_s(msg,sizeof(msg),"Face Number :%d",cells.Size());* k" x/ c3 @2 W3 U6 e1 i$ t
printMessage(msg);
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for (int i = 1; i <= cells.Size();i++)) p9 `; W$ |# b# }# V
{
' \, R" ~6 Z! A& D" h' ~' D J CATCell_var pCell = cells;4 ^. M$ I& p+ T# U0 v( e
if (NULL_var!=pCell)
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% L$ M; ^/ a. C% m$ F6 Z CATGeometry *pGeometry = pCell->GetGeometry();
/ X' @' s3 T$ V N; ^- B/ W if (NULL!=pGeometry && pGeometry->IsATypeOf(CATPlaneType)) //plane face9 z8 o4 B$ s, Q, E
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//CATMathPoint CenterPoint;" ^4 ` m% [, I* E+ W, X
//pGeometry->GetBoundingBox().GetBoxCenter(CenterPoint);6 C5 v) e; o7 a0 O& @
//sprintf_s(msg,sizeof(msg),"Face center :%f,%f,%f",CenterPoint.GetX(),CenterPoint.GetY(),CenterPoint.GetZ());% t6 y% }; J. q u/ P
//printMessage(msg);/ g% b$ m4 L& ?! c" l
7 j+ p0 W* O9 n9 `- B7 V CATIBRepAccess_var spBrepAccess = CATBRepDecode(pCell, spFeatureResultGeomElement);
9 b" t- i) r2 w. X if (spBrepAccess != NULL_var)
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- b# }; J" ?$ {" K: o //assign color
) L; q% l- s% y' P CATIVisProperties * pVisProperties = NULL;6 r' J; ~; Y, [) ?, s& A7 U
rc = spBrepAccess->QueryInterface(IID_CATIVisProperties,(void **) &pVisProperties);1 B' X9 V4 A) `! {2 G( N4 g* P8 \
if (SUCCEEDED(rc))
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# w' e! n9 w! ~1 c/ v4 n8 U CATVisPropertiesValues ivalues; D5 ]$ R+ H' i3 L
ivalues.SetColor(0,0,255);! j5 E) ]" b- w2 V P
pVisProperties->SetPropertiesAtt(ivalues,CATVPColor,CATVPMesh );+ q# a W& k! K* ?1 m: K
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pVisProperties->Release();# r, z7 }. p: o! n4 ^
pVisProperties = NULL;0 r: q4 ~9 v: ?! R5 K
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//get alias name and persistentTag to add in the list
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}; _ n' P8 f* ?7 z; \$ {
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// End of User Code( \# \; _8 Q) X5 |* H/ U3 |
}
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