ObjectARX-圆

ObjectARX

//定义圆心、法向向量

AcGePoint3d center(9.0,3.0,0.0);

AcGeVector3d normal(0.0,0.0,1.0);

//初始化圆对象实例

AcDbCircle * pCirc =new AcDbCircle(center,normal,2.0);

//打开块表

AcDbBlockTable * pBlockTable;

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

//打开模型空间块表，获得当前块表记录，并关闭块表

AcDbBlockTableRecord * pBlockTableRecord;

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

pBlockTable->close();

//向当前块表记录中添加圆对象

AcDbObjectId circleId;

pBlockTableRecord->appendAcDbEntity(circleId,pCirc);

//关闭块表记录及圆对象

pBlockTableRecord->close();

pCirc->close();