[Insight-users] Copy Mesh Points and Cells to QuadEdgeMesh using MeshToMeshFilter

[Stefan Dänzer]

Hi Arnaud,

thanks for your reply. I used the QuadEdgeMeshNormalFilter to generate the
input mesh. Maybe I'm misinterpreting the documentation of the normal
filter, but doesn't this filter need a vector type as template parameter?
See (in the description, section "todo:
http://www.itk.org/Doxygen/html/classitk_1_1QuadEdgeMeshNormalFilter.html

stefan

On Mon, Dec 13, 2010 at 5:04 PM, Arnaud GELAS <arnaud_gelas at hms.harvard.edu>
wrote:
> Hi Stefan,
>
> The first template argument is used to define the type of the point's
> coordinate (a concept checking may be missing here?).
> In your case, I guess it would be double instead of itk::Vector< double, 3
>>.
>
> Here, you can find an example of one special
> QuadEdgeMeshToQuadEdgeMeshFilter (for decimation purpose),
>
> http://www.itk.org/Wiki/ITK/Examples/Meshes/Decimation
>
> Best,
> Arnaud
>
> On 12/13/2010 10:40 AM, Stefan Dänzer wrote:
>>
>> Hi Luis,
>>
>> thanks for your reply. I have tried to use the
>> itkQuadEdgeMeshToQuadEdgeMeshFilter already. The output is a a
>> QuadEdgeMesh with no points and no faces. I'm working on itk 3.20 at
>> the moment. This is how I use the filter in my code right now:
>>
>> typedef itk::QuadEdgeMesh<itk::Vector<double,3>, 3>
>>  meshType;
>>
>> typedef itk::QuadEdgeMeshToQuadEdgeMeshFilter<meshType, meshType>
>> qeToQeFilterType;
>>
>> qeToQeFilterType::Pointer qeToQeFilter = qeToQeFilterType::New();
>>
>> qeToQeFilter->SetInput(meanShapeQe);
>> qeToQeFilter->Update();
>>
>> meshType::Pointer currentShape = qeToQeFilter->GetOutput();
>>
>> Might the problem be that I use a non scalar PointType
>> (itk::Vector<double,3>) ?
>>
>> stefan
>>
>> On Fri, Dec 10, 2010 at 1:56 PM, Luis Ibanez<luis.ibanez at kitware.com>
>>  wrote:
>>>
>>> Hi Stefan,
>>>
>>> the itkMeshToMeshFilter is an abstract class
>>> that only serves as base class for other filters.
>>>
>>> See the inheritance diagram in:
>>> http://www.itk.org/Doxygen/html/classitk_1_1MeshToMeshFilter.html
>>>
>>> You may want to try
>>>
>>> itkQuadEdgeMeshToQuadEdgeMeshFilter.txx
>>>
>>>
http://www.itk.org/Doxygen/html/classitk_1_1QuadEdgeMeshToQuadEdgeMeshFilter.html
>>>
>>> and to use an itkQuadEdgeMesh type for the
>>> reader that gets the input mesh from the .meta
>>> file.
>>>
>>>
>>>     Regards,
>>>
>>>
>>>        Luis
>>>
>>>
>>> ----------------------------------------------------------------
>>> On Thu, Dec 2, 2010 at 9:36 PM, Stefan Dänzer<stefan.daenzer at gmail.com>
>>>  wrote:
>>>>
>>>> Hi,
>>>> I'm trying to read an itk::Mesh from a .meta file and copy the points
>>>> and cells of this itk::Mesh to a itk::QuadEdgeMesh. My first approach
>>>> was to use itk::MeshToMeshFilter to achive this. The problem is that
>>>> the output mesh is empty after running the filter. Here is a part of
>>>> my code:
>>>>
>>>> itk::MetaMeshConverter<3,double>* metaConv = new
>>>> itk::MetaMeshConverter<3,double>;
>>>> itk::MetaMeshConverter<3,double>::SpatialObjectPointer meshSO =
>>>> metaConv->ReadMeta(inFilename.c_str());
>>>>
>>>> // get the itk::mesh
>>>> typedef itk::QuadEdgeMesh<double, 3>  qeMeshType;
>>>> typedef itk::MeshToMeshFilter<MeshType, qeMeshType>  qeFilterType;
>>>>
>>>> qeMeshType::Pointer qeMesh;
>>>> qeFilterType::Pointer qeFilter = qeFilterType::New();
>>>> qeFilter->SetInput(mesh);
>>>> qeFilter->Update();
>>>> qeMesh = qeFilter->GetOutput();
>>>>
>>>> Am I missing something? Thanks for any advice.
>>>>
>>>> Stefan
>>>> _____________________________________
>>>> Powered by www.kitware.com
>>>>
>>>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>>
>>>> Kitware offers ITK Training Courses, for more information visit:
>>>> http://www.kitware.com/products/protraining.html
>>>>
>>>> Please keep messages on-topic and check the ITK FAQ at:
>>>> http://www.itk.org/Wiki/ITK_FAQ
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://www.itk.org/mailman/listinfo/insight-users
>>>>
>>
>>
>
>



-- 
--
Stefan Daenzer
Körnerplatz 8
04107 Leipzig

Tel.: +49-157-84993879

"Work like you don't need the money, love like you've never been hurt and
dance like no one is watching." - Randall G Leighton
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.itk.org/pipermail/insight-users/attachments/20101213/f1a8ea77/attachment.htm>