[ITK-users] itkSmoothingQuadEdgeMeshFilter Help!!

[Mallikarjun K]

Thanks Bill for your answer.

The reason I am using this pipeline is that SmoothingQEMeshFilter has an
additional parameter for smoothing which is delaunay conforming which helps
to optimize aspect ratio of triangles while smoothing and thus produces
better output.Is there anything similar filter in the vtk pipeline.I used
vtkWindowedSincPolydatafilter which is not giving the output as good as
QEMeshSmoothing filter.

Thanks for your help


On Thu, Jul 31, 2014 at 5:14 PM, Bill Lorensen <bill.lorensen at gmail.com>
wrote:

> If you have it in vtk, I suggest using the vtk pipeline to smooth the data.
>
> On Thu, Jul 31, 2014 at 1:35 AM, Mallikarjun K <mallikarjun49 at gmail.com>
> wrote:
> > Hi Bill,
> > Thanks for the replay.
> >
> > Yes,I built both ITK and my app with Release ,I forgot to mention it in
> the
> > previous post.Actually the data set is the output of
> > vtkDiscreteMarchingCubes algorithm(around 5MB) and need to smooth .I
> saved
> > this marching cube's output as .vtk file and read it using
> > itkVTKPolyDataReader and then I am giving this reader's output to
> > itkSmoothingQuadEdgeMeshFilter's input.
> >
> > I checked the execution time of each step in the pipeline ,after
> > SmothingQEMeshFilter has got it's input ,it is taking time to process the
> > data.
> >
> > Thank you
> >
> >
> >
> > On Wed, Jul 30, 2014 at 9:29 PM, Bill Lorensen <bill.lorensen at gmail.com>
> > wrote:
> >>
> >> First, make sure you are building ITK and your app with Release. A
> >> Debug build can be 10-50 times slower.
> >>
> >>
> >> On Wed, Jul 30, 2014 at 10:18 AM, Mallikarjun K <
> mallikarjun49 at gmail.com>
> >> wrote:
> >> > Hi All,
> >> > I am using itkSmoothingQuadEdgeMeshFilter for Surface Mesh
> >> > smoothing.This
> >> > filter is giving good results what I expected but taking more
> execution
> >> > time.can any one suggest me to reduce the execution time( multi
> >> > threading
> >> > or any parameters to add/remove )?
> >> >
> >> > Below is the code snippet
> >> > ///////
> >> > typedef itk::QuadEdgeMeshTraits<double, 3,double, double,
> double,double
> >> > >
> >> > qetraits;
> >> > typedef itk::QuadEdgeMesh< vtkFloatingPointType, 3,qetraits >
> MeshType;
> >> >
> >> > //typedef itk::QuadEdgeMesh< vtkFloatingPointType, 3 > MeshType;
> >> >
> >> > itk::OnesMatrixCoefficients< MeshType > coeff0;
> >> >
> >> > typedef itk::SmoothingQuadEdgeMeshFilter< MeshType, MeshType >
> >> > SmoothingQuadEdgeMeshFilter;
> >> >
> >> >     SmoothingQuadEdgeMeshFilter::Pointer QEMeshSmoother =
> >> > SmoothingQuadEdgeMeshFilter::New();
> >> >
> >> > QEMeshSmoother->SetInput("abc.vtk");
> >> > QEMeshSmoother->SetNumberOfIterations(5 );
> >> > QEMeshSmoother->SetRelaxationFactor( 0.5 );
> >> > QEMeshSmoother->SetDelaunayConforming(true );
> >> > QEMeshSmoother->SetCoefficientsMethod( &coeff0 );
> >> > QEMeshSmoother->Update();
> >> > ////
> >> >
> >> > --
> >> > Regards:
> >> > Mallik
> >> >
> >> >
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> >>
> >>
> >>
> >> --
> >> Unpaid intern in BillsBasement at noware dot com
> >
> >
> >
> >
> > --
> > Regards:
> > Mallik
> >
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
>



-- 
*Regards:*
Mallik
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