[寻找]：画圆的头文件是什么？在那个头文件里可以找到

wxf80106

请问：画圆、画线的详细说明在那个头文件里啊？
谢谢！！

yfy2003

dbents.h

boaosun

AcDbObjectId CreateCircle(AcGePoint3d center,AcGeVector3d normal,
                                                                   double radius,AcDbObjectId layerId)
//绘制圆
//Center为圆心,normal为向量,Radius为半径,LayerId为图层
{ AcDbCircle *pCircle;
  AcDbObjectId CircleId;
  AcDbBlockTable *pBlockTable;
  AcDbBlockTableRecord *pBlockTableRecord;
       
  pCircle=new AcDbCircle(center,normal,radius);
  
  //获得当前图形数据库的符号表
  acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pBlockTable,AcDb::kForRead);

  //获得符号表中的模型空间块表纪录指针，用于添加对象
  pBlockTable->getAt(ACDB_MODEL_SPACE,pBlockTableRecord,AcDb::kForWrite);
  pBlockTable->close();

  //将直线添加到模型空间块表纪录中
  pBlockTableRecord->appendAcDbEntity(CircleId,pCircle);

  pCircle->setLayer(layerId);

  //关闭块表纪录指针和直线指针
  pBlockTableRecord->close();
  pCircle->close();
  return CircleId;
}