[Insight-developers] itkVTKPolyDataReader.h reads ascii only --- why?

[wanlin]

Hi, Brain,
            Reading binary legacy vtk polydata has been implemented in
http://www.insight-journal.org/browse/publication/761
Would you like try it?



On Wed, Oct 13, 2010 at 11:15 AM, Luis Ibanez <luis.ibanez at kitware.com>wrote:

> Hi Brain,
>
> Since this is an existing class, Jeff could simply
>
> 1) create a Git branch in his local repository,
> 2) make the necessary changes to the class,
> 3) add the proper test for reading binary vtk files,
> 4) run Experimental build until green,
> 5) and then push the branch to Gerrit for review.
>
>
> Please let us now if you or Jeff run into any
> problems.
>
> I'm sure many people will appreciate having
> the binary read functionality in this reader.
>
>
>      Luis
>
>
> --------------------------------------------
>
> On Wed, Oct 13, 2010 at 5:00 PM, brian avants <stnava at gmail.com> wrote:
>
>> Luis
>>
>> I think we can add the binary I/O capabilities to these classes, if
>> it's not done elsewhere, already.   Jeff Duda will probably do this
>> --- what's the recommended approach, currently, for adding
>> functionality like this to the toolkit?
>>
>> agreed that xml support is a bit ambitious.
>>
>> Brian
>>
>> On Wed, Oct 13, 2010 at 4:49 PM, Luis Ibanez <luis.ibanez at kitware.com>
>> wrote:
>> >
>> > Hi Brian,
>> >
>> > This reader was implemented as a helper class for
>> > other initiatives.
>> >
>> > Managing only ASCII was the first easy way to get
>> > it done.
>> >
>> > Binary just need to be added to its capabilities.
>> >
>> >
>> > Would you be interested in modifying the class
>> > and adding the Binary reading capability ?
>> >
>> >
>> > -
>> >
>> > The support for XML is a more difficult proposition.
>> > The implementation in VTK relies on a hierarchy
>> > of helper classes.  It can certainly be done in ITK
>> > but it will require several weeks of effort.
>> >
>> >
>> > I would suggest to deal only with the Binary
>> > reading capability initially.
>> >
>> >
>> >      Luis
>> >
>> >
>> > ----------------------------------------------------------------
>> > On Wed, Oct 13, 2010 at 2:38 PM, brian avants <stnava at gmail.com> wrote:
>> >>
>> >> Hi Everyone
>> >>
>> >> I updated git-itk this morning.  Am trying to read a vtk mesh and
>> >> apply a transformation to it.  I get the error below that says,
>> >> basically, "File format is BINARY but only ASCII files can be read".
>> >> Is there a good reason for this limitation?    Is it not true that vtk
>> >> files can be of type ASCII, binary or xml?   Should all of those be
>> >> supported?   Should the filter(s) be named
>> >> itkVTKAsciiPolyDataReader/Writer?    Finally, is anyone working on
>> >> this or is the solution in the software pipeline?
>> >>
>> >> Thanks!
>> >>
>> >> Brian
>> >>
>> >>
>> >> Input object: Mesh.vtk
>> >> Error during Update()
>> >>
>> >> itk::ExceptionObject (0x101abc640)
>> >> Location: "void itk::VTKPolyDataReader<TOutputMesh>::GenerateData()
>> >> [with TOutputMesh = itk::Mesh<double, 3u,
>> >> itk::DefaultStaticMeshTraits<double, 3u, 3u, float, float, double> >]"
>> >> File: /Users/brianavants/code/ITK/Code/IO/itkVTKPolyDataReader.txx
>> >> Line: 107
>> >> Description: itk::ERROR: VTKPolyDataReader(0x101abc4b0): Error reading
>> >> file: WM.vtk
>> >> File format is BINARY but only ASCII files can be read.
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>>
>>
>> --
>> ß®∫∆π
>>
>
>
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