[Insight-developers] ITK Modular: Kick the tires

[Luis Ibanez]

We are also collecting additional Use Cases at:

http://www.itk.org/Wiki/ITK_Release_4/Modularization/Use_Cases

with the goal of producing documentation on how the
modularization could be used to support those use
cases.


     Luis


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On Wed, Mar 16, 2011 at 7:57 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> Folks,
>
> I am sending this email because there will be a discussion of the ITK
> modularization on this Friday's t-con (and I cannot attend).
>
> First, the ITK modularization team has done a fantastic job
> reorganizing ITK. And they have been very responsive to constructive
> criticism.
>
> There are still dashboard issues, but these problems are being
> addressed quickly.
>
> These are still shared lib issues on some platforms but these will be fixed.
>
> The reorganization of ITK will be with us for many years. It is
> important that the ITK developer community accept and endorse this
> reorganization. We will need to sell this reorg to our customers.
>
> For example, there has been discussion regarding the organization of
> the ITK source tree. In particular the use of ITK/ITK seems awkward to
> some of us.
>
> Summary (my take):
>
> 137 libs versus 39 before
>
> There are 10 high level directories: ITK/ITK/Core, Filtering, Segmentation, ...
> These are similar to the old ITK/Code/Common,BasicFilters,Algorithms...
>
> Now there are about 80 subdirectories:
> ITK/ITK/Core/Common
> ITK/ITK/Core/FiniteDifference
> ITK/ITK/Core/ImageAdaptors
> ITK/ITK/Core/ImageFunction
> ITK/ITK/Core/Mesh
> ITK/ITK/Core/QuadEdgeMesh
> ITK/ITK/Core/SpatialObjects
> ITK/ITK/Core/Transform
> ITK/ITK/Registration/Common
> ITK/ITK/Registration/FEM
> ITK/ITK/Registration/PDEDeformable
> ITK/ITK/Segmentation/BioCell
> ITK/ITK/Segmentation/Blox
> ITK/ITK/Segmentation/Classifiers
> ITK/ITK/Segmentation/ConnectedComponents
> ...
>
> The test directories reside within the modules:
> ITK/ITK/Segmentation/ConnectedComponents/test
>
> PLEASE, pull and build the current ITK source tree and
> experiment with it.
> 1) Make sure your platform can build the current
> tree.
> 2) Duplicate your typical workflow and see how the new layout feels.
> 3) If you have apps, try to build your apps with the new layout.
>
> My experience has been positive. I have built ITKApps and the ITK Wiki
> Examples against the new tree. I had to make some changes, but these
> are backward compatible with ITK before modularization. I do have some
> issues with mingw (command lines too long), but I have submitted a
> patch to the cmake gurus and they are working on a general solution. I
> also have issues with the source tree layout.
>
> We will live with whatever we accept for many years to come.
>
> Speak now (or forever hold your peace),
>
> Bill
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