[vtkusers] Deleting unknown object: vtkObject - vector of pointers?

[Bill Lorensen]

David,

Try the attached. I instrumented it with more output and ->DebugOn()
to show register/delete's. Everything looks fine to me.

Bill


On Tue, Nov 10, 2009 at 3:25 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> Oops. I'm wrong about that.  Grid[i]=Column should copy all of
> Column[i]'s smart pointers, thus affect ref count.
>
> I need to study it further.
>
> On Tue, Nov 10, 2009 at 3:20 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
>> I a ref of 2 is correct. The Grid[i]=Column should have no ref count
>> implication since Column is a vector.
>>
>> BTW, the current code does not crash on my system.
>>
>> Bill
>>
>> On Tue, Nov 10, 2009 at 2:25 PM, David Doria <daviddoria+vtk at gmail.com> wrote:
>>> On Fri, Nov 6, 2009 at 12:26 PM, Bill Lorensen <bill.lorensen at gmail.com>
>>> wrote:
>>>>
>>>> Ray is not initialized in the constructor. Do a
>>>> Ray=NULL;
>>>>
>>>> Don't forget to Delete() Ray in the destructor.
>>>
>>> Getting closer... it gets to the end of the program now without crashing,
>>> errors, or warnings - but when the program quits (I put a break point on the
>>> 'return 0' statement and the following errors happen when I step over return
>>> 0) I get "Deleting unknown object" errors. I'm assuming I am misinterpreting
>>> the reference count that happens when the objects get added to the stl
>>> container and when the container goes out of scope? Should the stl vector(s)
>>> be of smartpointers or standard pointers?
>>>
>>> I added the following line at the end of the outer loop:
>>>
>>> vtkstd::cout << "Ref after column added to grid: " <<
>>> Grid[0][0]->GetReferenceCount() << vtkstd::endl;
>>>
>>> The reference count is still 2... is this what we would expect? Shouldn't it
>>> be 3 here? Because then when the program terminates, the outer vector (1)
>>> deletes the inner vectors(2) which delete the LidarPoints (3) so the count
>>> should have been 3 to then go down to 0?
>>>
>>> Here is the current version:
>>> http://rpi.edu/~doriad/VTK_List/DeletingUnknownObject/ (there are too many
>>> files to post the code directly to the list).
>>>
>>> One day we'll get this resolved... haha.
>>>
>>> Thanks,
>>>
>>> David
>>>
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>
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