CATIA二次开发入门教程---18 创建一个点

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, e  B6 d: m# H; q3 j[mw_shl_code=c,true]////////获得Editor、Document、Container、设置GSMFactory
        CATFrmEditor* pEditor = CATFrmEditor::GeTCurrentEditor();
( @3 W6 r0 |; b$ ^        CATDocument *pDoc = pEditor->GetDocument();
        CATIContainerOfDocument_var spConODocs = pDoc;
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+ i# @- \: t3 V5 I        CATIContainer*            _pContainer;                //Container
        CATIGSMFactory_var        spGSMFactory;                //GSM工厂
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! r' ~3 U, w/ J5 g$ L        _pContainer = NULL;
2 ]  F: k  b5 C. Z0 ?2 _* J7 F        HRESULT hr = spConODocs->GetSpecContainer(_pContainer);
- M8 [9 G& u9 V7 |        spGSMFactory = NULL_var;
        spGSMFactory = _pContainer;
        //设置点的坐标
" A" G/ @% a6 _" t" r        CATMathPoint _Point;
3 k4 [  I; m& R0 n( d9 M) g        _Point.SetCoord(10,10,10 );
3 w5 ]+ M( P! i. f3 Q        /////////////////////用以上得到的Point3D画点
        CATIGSMPoint_var spPoint1 = spGSMFactory->CreatePoint(_Point); //创建一个点
* i, p, ~' a" L5 g9 p        CATISpecObject_var                spSpecPoint1;
$ g2 m, J$ }9 y        spSpecPoint1 = spPoint1;                                //Casts the point as a CATISpecObject
        CATIGSMProceduralView_var spSndPntObj = spSpecPoint1;
6 r) \# \6 m* p- n! k- h7 m2 H" s        spSndPntObj->InsertInProceduralView();
  `! m! F0 w4 s2 ~    spSpecPoint1->Update();
' c" ?; y% }) {' m4 D& m4 f8 ~        // Add your code here[/mw_shl_code]

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在创建任何几何对象之前，必须在激活的函数命令中添加以下代码，：

CATFrmEditor* pEditor = CATFrmEditor::GetCurrentEditor();

if(pEditor == NULL)

{

   printf("error getting the FRMeditor");

}

CATDocument *pDoc = pEditor->GetDocument();

CATIContainerOfDocument_var spConODocs = pDoc;

CATIContainer* pSpecContainer = NULL;

HRESULT hr =spConODocs->GetSpecContainer(pSpecContainer);

if(spConODocs == NULL_var)

{

   printf("error getting thecontainer of documents");

}

以上代码的主要功能是获取editor, the document and the container。

CATIGSMFactory_var spGSMFactory = NULL_var;

CATIPrtFactory_var spPrtFactory = NULL_var;

CATICkeParmFactory_var spParmFactory = NULL_var;

spGSMFactory = pSpecContainer;

spPrtFactory = pSpecContainer;

spParmFactory = pSpecContainer;

以上代码设置工厂，在这基础上你才可以造型，GSMFactory用于创建底层的几何对象比如点、线等。PrtFactory包含创建孔特征、拉伸特征实体等函数。ParmFactory 包含设定参数的函数。

在以上的基础上可以创建点了，步骤如下：

（1）创建一个三维数组(x,y,z)定义点坐标。

double Coords[3];

Coords[0] = 0;

Coords[1] = 0;

Coords[2] = 0;

（2）创建一个CATIGSMPoint并将其转换为CATISpecObject

CATIGSMPoint_var spPoint1 = spGSMFactory->CreatePoint(Coords);//Creates a point

CATISpecObject_var spSpecPoint1 = spPoint1; //Casts thepoint as a CATISpecObject

（3）为了在CATIA显示你创建的点，必须将其添加到视图中。

spSpecPoint1->Update();

CATIGSMProceduralView_var spPntObj = spSpecPoint1;

spPntObj->InsertInProceduralView();

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