[Insight-users] Transform Mesh Filter

[Federico J. Lopez Bertoni]

Hi all,

I'm trying to implement the itkTransformMeshFilter and i run into some
problems. I have a deformation field (bspline parameters from an image to
image registration) and I want to deform a mesh using the Bspline transform
and its final parameters. I also tried using an affine transform and it gave
me the same error on the .txx file. I tried the same thing using the
Identity Transform and the filter compiled with no problems. I was wondering
if I can get some help on what I'm doing wrong or just on how I can deform a
mesh using my registration results. I attached the code and the error below.


Thanks,

.txx line where error appears:

m_Transform->TransformPoint( inputPoint.Value() );

e:\Federico\CT\Source\Insight\Code\BasicFilters\itkTransformMeshFilter.txx(96)
: error C2664:
'itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::OutputPointType
itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::TransformPoint(const
itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::InputPointType
&) const' : cannot convert parameter 1 from 'const
itk::MapContainer<TElementIdentifier,TElement>::Element' to 'const
itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::InputPointType
&'





Here's the code:

    typedef itk::BSplineDeformableTransform< CoordinateRepType,
SpaceDimension, SplineOrder >    BsplineTransformType;
    BsplineTransformType::Pointer    bsplineFinalTransform =
BsplineTransformType::New();
    RegistrationType2::ParametersType    finalPar =
registration2->GetLastTransformParameters();
    bsplineFinalTransform->SetParameters( finalPar );

    //Transform Meshes
    typedef itk::TransformMeshFilter< HeartMeshType, HeartMeshType,
BsplineTransformType > TransformHeartMeshFilterType;
    TransformHeartMeshFilterType::Pointer    transformHeartMesh =
TransformHeartMeshFilterType::New();

    transformHeartMesh->SetInput( heartMesh );
    transformHeartMesh->SetTransform( bsplineFinalTransform );
    transformHeartMesh->Update();

The error:
e:\Federico\CT\Source\Insight\Code\BasicFilters\itkTransformMeshFilter.txx(96)
: error C2664:
'itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::OutputPointType
itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::TransformPoint(const
itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::InputPointType
&) const' : cannot convert parameter 1 from 'const
itk::MapContainer<TElementIdentifier,TElement>::Element' to 'const
itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::InputPointType
&'
        with
        [
            TScalarType=CoordinateRepType,
            NDimensions=3,
            VSplineOrder=3
        ]
        and
        [

TElementIdentifier=itk::DefaultDynamicMeshTraits<float,3,3>::PointIdentifier,
            TElement=itk::DefaultDynamicMeshTraits<float,3,3>::PointType
        ]
        and
        [
            TScalarType=CoordinateRepType,
            NDimensions=3,
            VSplineOrder=3
        ]
        Reason: cannot convert from 'const
itk::MapContainer<TElementIdentifier,TElement>::Element' to 'const
itk::BSplineDeformableTransform<TScalarType,NDimensions,VSplineOrder>::InputPointType'
        with
        [

TElementIdentifier=itk::DefaultDynamicMeshTraits<float,3,3>::PointIdentifier,
            TElement=itk::DefaultDynamicMeshTraits<float,3,3>::PointType
        ]
        and
        [
            TScalarType=CoordinateRepType,
            NDimensions=3,
            VSplineOrder=3
        ]
        No constructor could take the source type, or constructor overload
resolution was ambiguous
        C:\Program Files\Microsoft Visual Studio .NET
2003\Vc7\include\xtree(267) : while compiling class-template member function
'void
itk::TransformMeshFilter<TInputMesh,TOutputMesh,TTransform>::GenerateData(void)'
        with
        [
            TInputMesh=HeartMeshType,
            TOutputMesh=HeartMeshType,
            TTransform=TransformType3
        ]
        \Federico\CT\C\DeformHeart3D\DeformHeart3D.cxx(467) : see reference
to class template instantiation
'itk::TransformMeshFilter<TInputMesh,TOutputMesh,TTransform>' being compiled
        with
        [
            TInputMesh=HeartMeshType,
            TOutputMesh=HeartMeshType,
            TTransform=TransformType3
        ]


-- 
Federico J. Lopez Bertoni
Graduate Research Assistant
Duke University
Department of Biomedical Engineering
Office:  1373 CIEMAS
Phone:  919-660-5125
fjlb at duke.edu
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