有资求助！

yaobao

本人要在CAD里面弄一个画缓和曲线的ARX程序，源代码已经有了。但是对于ARX及VC++不了解，所以想请哪为高手帮忙！最好是已经编译好的了。谢谢！

AcDbObjectId CreateArc(AcGePoint3d center,double r,double starangle,double endangle)

｛

AcDbArc * Parc = new AcDbArc (center,r,starangle,endangle);

AcDbBlockTable * pBlockTable;

AcdbHostApplicationServices() - > workingDatabase() - > getSymbolTable(pBlockTable, AcDb::kForRead);

AcDbBlockTableRecord* pBockTableRecord;

pBlockTable- > getAt(ACDB_MODEL_SPACE, pBockTableRecord,AcDb:: kForWrite);

pBlockTable- >close();

AcDbObjectId ArcID;

pBockTableRecord- >appendAcDbEntity(ArcID,pArc);

pBockTableRecord- > close();

pArc- > close();

Return ArcID;

｝

用SPLINE线模拟缓和曲线：在ObjectARX系统中，系统向二次开发程序员提供了类AcDbSpline，利用AcDbSpline可以较好地模拟缓和曲线。

首先根据工程设计的精度要求，确定在缓和曲线上没间隔多少距离计算一个加点才能模拟缓和曲线，利用式（2）将加点计算后存放在数组类AcGePoint3dArray points中，然后生成SPLINE线：

AcDbObjectId CreateSPLINE（AcGePoint3dArray points）

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AcDbSpline * pSpline = new AcDbSpline(Points,4,0.0);

AcDbBlockTable * pBlockTable;

AcdbHostApplicationServices() - > workingDatabase() - > getSymbolTable(pBlockTable, AcDb::kForRead);

AcDbBlockTableRecord* pBockTableRecord;

pBlockTable- > getAt(ACDB_MODEL_SPACE, pBockTableRecord,AcDb:: kForWrite);

pBlockTable- >close();

AcDbObjectId SplineId;

pBockTableRecord- >appendAcDbEntity(ArcId,pArc);

pBockTableRecord- > close();

pArc- > close();

Return SplineId; ｝