CATIA二次开发入门教程---21 创建草图几何图形

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CATIA二次开发入门教程---21 创建草图几何图形
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9 X, W; T2 [6 L* Z[mw_shl_code=c,true]////////获得Editor、Document、Container、设置GSMFactory
        CATFrmEditor* pEditor = CATFrmEditor::GeTCurrentEditor();
        CATDocument *pDoc = pEditor->GetDocument();
        CATIContainerOfDocument_var spConODocs = pDoc;

        CATIContainer*            pContainer;                //Container
        CATIPrtContainer*     pPrtContainer;//PartContainer
        CATIGSMFactory_var        spGSMFactory;                //GSM工厂
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        CATIPrtPart_var        spPrt   ;//
3 V+ w3 b, Z1 [) B        HRESULT hr = spConODocs->GetSpecContainer(pContainer);//获取Container

+ x" A+ x$ P) \0 k0 n1 _5 q/ U        hr =pContainer->QueryInterface(IID_CATIPrtContainer,(void **)&pPrtContainer);//获取PrtContainer
' }' r6 ~* Q, r4 Y1 L9 k        spPrt = pPrtContainer->GetPart();
/ {' z+ d9 H$ v7 b$ S- e        CATListValCATISpecObject_var spListRefPlanes = spPrt->GetReferencePlanes();//获取3个参考平面

        CATISpecObject_var spSketchPlane = spListRefPlanes[3];//第三个平面
        CATISketchFactory_var spSketchFactOnPrtCont(pPrtContainer);//草图工厂
        CATISketch_var spSketch = spSketchFactOnPrtCont->CreateSketch( spSketchPlane );        //创建草图
        CATI2DWFFactory_var spWF2DFactOnSketch(spSketch);

        spSketch->OpenEdition();        //进入草图开始绘图

" W) J+ e( W& r) E4 N3 }        double p1[2]   = {0,0};
   double p2[2]   = {100,0};
5 V* b, l0 z, l' ]4 S- w3 i: L   double p3[2]   = {100,100};
   double p4[2]   = {0,100};
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8 ~+ _8 \; O' b! @; F   CATI2DPoint_var spP1,spP2,spP3,spP4;
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/ W) Y. @7 V3 o' GspP1 = spWF2DFactOnSketch->CreatePoint(p1);
spP2 = spWF2DFactOnSketch->CreatePoint(p2);
spP3 = spWF2DFactOnSketch->CreatePoint(p3);
spP4 = spWF2DFactOnSketch->CreatePoint(p4);
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CATI2DLine_var spLine1 = spWF2DFactOnSketch->CreateLine(p1,p2);
CATI2DLine_var spLine2 = spWF2DFactOnSketch->CreateLine(p2,p3);
1 v! S5 z2 N& a0 WCATI2DLine_var spLine3= spWF2DFactOnSketch->CreateLine(p3,p4);
4 c7 V# d4 p5 ACATI2DLine_var spLine4 = spWF2DFactOnSketch->CreateLine(p4,p1);

CATI2DCurve_var spCurve1,spCurve2,spCurve3,spCurve4;
9 \7 U3 x7 t; wspCurve1 = spLine1;
; F# I2 c5 R# S, PspCurve2 = spLine2;
- j* s" T  D5 M1 ~% z5 D* DspCurve3 = spLine3;
spCurve4 = spLine4;

; \. a( ~" T4 y, R1 P  xspCurve1->SetStartPoint(spP1);
spCurve1->SetEndPoint(spP2);
spCurve2->SetStartPoint(spP2);
spCurve2->SetEndPoint(spP3);
) T2 b, l/ X3 a# FspCurve3->SetStartPoint(spP3);
spCurve3->SetEndPoint(spP4);
spCurve4->SetStartPoint(spP4);
spCurve4->SetEndPoint(spP1);
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. k+ j5 K5 X6 T* Q% _9 G. A  spSketch->CloseEdition(); //退出草图


  CATISpecObject_var spObject = spSketch;
spObject->Update();
  [/mw_shl_code]

admin

在上一节的基础上，开始创建草图。首先创建草图工厂：
, G8 {) [  R- a4 i4 X/ Y' h$ ICATI2DWFFactory_var sketch2DFactory(spSketch);
- y8 v9 y9 S& m, I, V下面创建点：
3 O# i& D* o8 q( tCATI2DPoint_var spPt_bottom_left, spPt_bottom_right, spPt_top_right, spPt_top_left;
double pt_bottom_left[2]  = {10., 10.};
double pt_bottom_right[2] = {50., 10.};
double pt_top_right[2]    = {50., 50.};
double pt_top_left[2]     = {10., 50.};
( m. J4 B% M/ j3 d  MspPt_bottom_left  = sketch2DFactory->CreatePoint(pt_bottom_left);
  v1 S" X( v: JspPt_bottom_right = sketch2DFactory->CreatePoint(pt_bottom_right);
spPt_top_right    = sketch2DFactory->CreatePoint(pt_top_right);
* H! b* `8 w8 jspPt_top_left     = sketch2DFactory->CreatePoint(pt_top_left);
开始创建线：
$ P/ b- s6 u5 @8 M4 o0 W# uCATI2DLine_var spLine1, spLine2, spLine3, spLine4;
spLine1 = sketch2DFactory->CreateLine(pt_bottom_left,pt_bottom_right);
- x& f% T" R3 O0 L* l4 espLine2 = sketch2DFactory->CreateLine(pt_bottom_right,pt_top_right);
spLine3 = sketch2DFactory->CreateLine(pt_top_right,pt_top_left);
9 H6 L% ^2 J7 V/ espLine4 = sketch2DFactory->CreateLine(pt_top_left,pt_bottom_left);
9 m5 t" r7 \- a" Q* T) K. R将线连接起来：
3 g4 q1 w# U1 c4 V* bCATI2DCurve_var spCurve1 (spLine1);
1 ~; @% F6 e/ `% R2 eCATI2DCurve_var spCurve2 (spLine2);
CATI2DCurve_var spCurve3 (spLine3);
CATI2DCurve_var spCurve4 (spLine4);
spCurve1->SetStartPoint(spPt_bottom_left);
spCurve1->SetEndPoint(spPt_bottom_right);
& D- _3 [$ j; z& |2 a' x/ |spCurve2->SetStartPoint(spPt_bottom_right);
spCurve2->SetEndPoint(spPt_top_right);
spCurve3->SetStartPoint(spPt_top_right);
spCurve3->SetEndPoint(spPt_top_left);
2 Z+ I+ G, Y5 R( G) h3 s6 \spCurve4->SetStartPoint(spPt_top_left);
spCurve4->SetEndPoint(spPt_bottom_left);
然后退出草图：
; N& }" p3 n) ?2 `spSketch->CloseEdition();

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visionace

非常棒，有没有接口之间的关系导图呀