拓扑相交出错 请高手指点 帮俺看看源代码！

代码如下：
HRESULT GetIntersectPoint(const CATISpecObject_var &spMainbodyFeature,const CATISpecObject_var &spLineObj)
{
   CATLISTP(CATPoint) LISTPoint = NULL;
   HRESULT rc = S_OK;
   CATBody_var spMainFeaturebody = NULL_var;
   CATBody_var spLineObjBody = NULL_var;

  spMainFeaturebody = GetBodyFromFeature(spMainbodyFeature);
  if (spMainbodyFeature == NULL_var)
  {
    cout<<"Error:GetBodyFromFeature(spMainbodyFeature,spMainFeaturebody)"<<endl;
return E_FAIL;
  }
  cout<<"Get spMainFeaturebody Successful"<<endl;
  rc = GetBodyFromFeature(spLineObj,spLineObjBody);
  if (FAILED(rc)||(spLineObjBody == NULL_var))
   {
    cout<<"Error:GetBodyFromFeature(spLineObj,spLineObjBody)"<<endl;
    return rc;
   }
  cout<<"Get spLineObjbody Successful"<<endl;
CATLISTP(CATCell) LISTCell1;
spLineObjBody->GetAllCells(LISTCell1,1);
if (LISTCell1.Size() <= 0)
{
  cout<<"can't get line body"<<endl;
  return E_FAIL;
}
cout<<"LISTCell1.Size() = "<<LISTCell1.Size()<<endl;

CATLISTP(CATCell) LISTCell2;
spMainFeaturebody->GetAllCells(LISTCell2,2);
if (LISTCell2.Size() <= 0)
{
  cout<<"can't get surface body"<<endl;
  return E_FAIL;
}
cout<<"LISTCell2.Size() = "<<LISTCell2.Size()<<endl;
CATBody* piLineBody = spLineObjBody;
CATBody* piMainFeaturebody = spMainFeaturebody;

cout<<"get piLineBody and piMainfeaturebody successful"<<endl;
CATSoftwareConfiguration* piConfig = new CATSoftwareConfiguration();
CATTopData topData(piConfig);
CATTopData* ptopData = &topData;
CATGeoFactory* piGeomFactory = ::CATCreateCGMContainer() ;
if (NULL == piGeomFactory)
{
  cout<<"Error:::CATCreateCGMContainer()"<<endl;
   return E_FAIL;
}
CATHybIntersect* pHyIntersect =  CATCreateTopIntersect(piGeomFactory,ptopData,piLineBody,piMainFeaturebody);//这句出错，输入对象不能引用
if (NULL == pHyIntersect) return E_FAIL;
  pHyIntersect->Run();
CATBody* piIntersectBody = pHyIntersect->GetResult();
if (piIntersectBody == NULL)
{
cout<<"Error:piIntersectBody == NULL"<<endl;
return E_FAIL;
}
cout<<"Get Intersectbody successful"<<endl;
  return rc;
}
求高手指点

今天难得有时间，首先声明，我不是高手，其次，你的代码，没有认真看，但是我想问的是，你这如果是交互式编程，为何出现CATGeoFactory* piGeomFactory = ::CATCreateCGMContainer() ;
？

非常感谢楼上的回复！
  我是在批处理程序中，测试拓扑相交。我现在要编程有大量的相交操作，如果用CATIA自带命令的相交操作就需要大量的更新和判断，这样速度就非常慢！
  现在每次测试时，就出现这种错误，“输入的对象不能引用”。
求指点迷津！

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