Catia二次开发源码分享：创建圆柱体实例

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获得零件指针
// 获得文件指针
8 O' F) N6 r" r! \: ?# g& mCATDocument * pDoc= NULL;
CATFrmEditor * _pEditor = CATFrmEditor::GeTCurrentEditor();
  K, t% R2 k' X/ f( o- ^9 h  xpDoc = _pEditor->GetDocument();//这里得到了PART 环境下的文档指针
1 [& a! J) p7 `$ j: P9 C- G2 u) BCATInit_var spInitOnDoc(pDoc);
8 C7 H6 |- w& M( q0 V6 C, i4 i// 得到零件根容器

% L5 q& A+ x! Z% `1 qCATIPrtContainer * piPrtCont =
(CATIPrtContainer*) spInitOnDoc->GetRootContainer("CATIPrtContainer");
// 得到零件指针
+ t; [2 |* d8 @CATIPrtPart_var spPart = piPrtCont->GetPart();
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( m7 S; ?. \7 E( J3 n8 G+ Y创建草图
//初始化草图工厂
CATISketchFactory_var spSketchFactory(piPrtCont);
//在XY plane 上创建草图
$ [9 V3 M5 q3 O& mCATISketch_var spSketch = spSketchFactory->CreateSketch(spRefPlanes[1]));
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创建草图几何
//首先声明编辑草图
. A+ R0 b6 y: Y+ h2 {spSketch->OpenEdition();
& q7 j# E5 K' W/ f0 g0 q& JCATI2DWFFactory_var sp2DFactory(spSketch);
//这里表示圆心点
! ]; O. H* u  U$ o) ~& ~4 bdouble iPoint[2] = {0.,0.};
  {- y% U3 i# ~8 w* D3 O* Z9 C//下面创建圆圈
CATISpecObject_var spLine = spSketch ->CreateCircle(iPoint,_Editor003->GetFloatValue());
CATI2DCurve_var spCurveOnLine(spLine);
spCurveOnLine->GetStartPoint();
spCurveOnLine->GetEndPoint();
& ~5 V& U+ y& |% q+ G: {//然后退出草图：
/ C6 H1 ^& I7 E  `spSketch->CloseEdition();
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创建约束
  x$ c: t( h* TCATI2DConstraintFactory_var spConstraint2DFactory(spSketch);
4 ~( Z  K  r! ?- r$ b- W//定义spLine1 的半径约束
3 Q! I8 [) q8 d0 mspConstraint2DFactory->CreateConstraint(spLine, NULL, NULL, NULL, NULL, NULL,
NULL, Cst2DType_Radius, 0, 0 );
//定义spLine1 与坐标原点的同心约束
8 D6 L3 \4 _2 U- Z: T0 Y1 b4 XCATI2DAxis_var spSupport = NULL_var;
spSketch->GetAbsolute2DAxis(spSupport);
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* [" l) u: [1 w: DspConstraint2DFactory->CreateConstraint(spLine, NULL, spSupport->GetOriginPoint(),
' Q( u) s& N$ _0 o& A2 sNULL, NULL, NULL, NULL, Cst2DType_Concentric, 0, 0 );
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创建凸台
// 从编辑框中获得援助的高度
double firstLimit = _Editor004->GetFloatValue();
& O$ p% T/ }) C; e2 G: G% g5 ?double secondLimit = 0.;
//圆柱的轴向方向为Z 轴方向
3 L. u% V+ k6 f+ S- N5 q+ ]CATMathDirection dirZ(0., 0., 1.);
" @& P( y( B; o  w3 z& a  K) f5 Z6 T//初始化零件工厂
  b8 m0 v6 b" ^/ k/ w, B/ X6 ECATIPrtFactory_var spPrtFactOnPrtCont(piPrtCont);
' \' r) P% H2 m, u. q//创建凸台
1 h7 L) i( K, F1 r" n- MCATISpecObject_var spSpecObj = spPrtFactOnPrtCont->CreatePad(spSketch);
# W; S8 I! T& J% o1 rCATIPad_var spPadOnSpecObj(spSpecObj);
//设置拉伸方向
  _, n2 _) e  F$ J( dspPadOnSpecObj->ModifyDirection(dirZ);
//设置凸台第一限制类型
spPadOnSpecObj->ModifyEndType(catOffsetLimit);
//设置凸台的高度
( P4 W' C: n5 H3 O: ]1 lspPadOnSpecObj->ModifyEndOffset(firstLimit);
//设置凸台第二限制类型
' y3 @  {9 t- U) V6 KspPadOnSpecObj->ModifyStartType(catOffsetLimit);
" W% Y6 I+ X- @: s* s& cspPadOnSpecObj->ModifyStartOffset(secondLimit);
' y9 P: s4 t& x+ H: ^* G//将凸台添加在结构树中
2 v: L' N9 \. i7 u. t5 k9 MspSpecObj->Update();
CATIGSMProceduralView_var ispProcView = spSpecObj;
6 l& G% w( [% D$ gif (NULL_var != ispProcView ) {HResult rc = ispProcView ->InsertInProceduralView();}