[Insight-users] store DictionaryArrayRawPointer

[Bill Lorensen]

The series reader deletes all of the elements of the
MetaDataDictionaryArray when it is destructed. The
MetaDataDictionaryArray is a vector of raw dictionary pointers. So, it
looks to me that once the series reader is deleted, the pointers are
no longer valid.

You could create a new MetaDataDictionaryArray and using operator =,
copy each of the dictionaries after an Update() on the series reader.
I've never tried this but it might work.

Others may have a better solution.

Bill

On Wed, Dec 3, 2008 at 10:58 AM, Laurent Paul <l.paul at uclouvain.be> wrote:
> Hi all,
>
> I'm trying to open a dicom series, make some stuffs and write it. I'm aware of the potential danger, but I'm trying!
> Everything is fine when I do:
> SeriesWriter->SetMetaDataDictionaryArray( SeriesReader->GetMetaDataDictionaryArray());
>
> But for memory consumption, I wish to "delete()" all intermediary filters including SeriesReader. So I tried to store
> the DictionaryArrayRawPointer and give it back to the writer :
> ReaderType::DictionaryArrayRawPointer DicomDictionaryArray;
> DicomDictionaryArray = SeriesReader->GetMetaDataDictionaryArray();
> SeriesWriter->SetMetaDataDictionaryArray( DicomDictionaryArray);
>
> The issue is that I get a runtime error because of the pointer.
> I guess that it is only a C++ issue but I can't find the key...
>
> Thanks for your ideas!
>
> Laurent.
>
>
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