[Insight-developers] GDCM 2.x [was CMake Flag to make itk::Image behave like itk::OrientedImage]

[Bill Lorensen]

Unfortunately, Mathieu says that the new GDCM will not compile under
VS6. I believe we still have customers that use VS6. There have been
recent questions regarding VS6 on the users list.

Mathieu,

What sort of errors do you get with a VS6 compiler?

Bill

On Mon, Sep 15, 2008 at 11:44 AM, Stephen Aylward
<Stephen.Aylward at kitware.com> wrote:
> On Mon, Sep 15, 2008 at 11:06 AM, Karthik Krishnan
> <karthik.krishnan at kitware.com> wrote:
>> If I am not mistaken, I don't think the Backward compatibility policy
>> applies to any of the third party software in Insight/Utilities.
>
> Actually, we consider all API's published by ITK to be "public APIs of
> ITK."    We debated how this applied to Utilities many years ago, and
> the final agreement was that there should be every effort to maintain
> the quality and backward-compatibility of the code and APIs in
> Utilities as much as possible.   You can probably search the email
> archives and find that discussion.
>
>>
>>> Here is what I am planning to do : add support for the new GDCM 2.x
>>> architecture via the use of ITK_USE_SYSTEM_GDCM. A compiler #ifdef
>>> will determine the MAJOR version of GDCM and if GDCM 2.x is found, a
>>> different implementation will be used,
>>
>> Out of curiosity, is that more of a pain than upgrading the GDCM in
>> ITK to 2.0.x ? If so, I wonder what the developers think about
>> upgrading the GDCM in ITK, since DICOM handling is pretty fundamental
>> for ITK.
>
> I think we should upgrade.   If the API breaks backward compatibility,
> then we need to acknowledge it, warn users, and try to mitigate the
> negative effects.
>
> The rough part happens is when someone has been compiling with
> use-system-gdcm and that system gdcm is version X and now itk's
> internal gdcm is moved to version X+1.    We may need to make changes
> in ITK to allow either version to be used externally as well as
> version X+1 internally.  Yuck...but an improved dicom reader is worth
> it.
>
> Stephen
>
>>
>> Thanks
>> --
>> Karthik Krishnan
>> R&D Engineer,
>> Kitware Inc.
>> Ph: 518 371 3971 x119
>> Fax: 518 371 3971
>> _______________________________________________
>> Insight-developers mailing list
>> Insight-developers at itk.org
>> http://www.itk.org/mailman/listinfo/insight-developers
>>
>
>
>
> --
> Stephen R. Aylward, Ph.D.
> Chief Medical Scientist
> Kitware, Inc. - North Carolina Office
> http://www.kitware.com
> (518) 371-3971 x300
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