[vtkusers] Make Smooth Isosurfaces

Sat Oct 31 00:22:32 EDT 2009

Yes, Comsol is a finite element program. The voltages are computed at the
mesh vertices. I really appreciate the amount of time you give to my
problem, I will look at some alternate ways to get around the problem. I
will keep you updated on this problem.

Again Thank you,

Sanket Jain

On Fri, Oct 30, 2009 at 11:13 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> Is COMSOL a finite element program? If so, are the voltages computed
> at the mesh vertices or are they computed at an integration point
> within the tetra?
>
> On Sat, Oct 31, 2009 at 12:10 AM, Bill Lorensen <bill.lorensen at gmail.com>
> wrote:
> > I can't explain why the COMSOL isosurface and the VTK contours do not
> agree.
> >
> > Sorry.
> >
> > On Sat, Oct 31, 2009 at 12:01 AM, Sanket Jain <jainsanket1 at gmail.com>
> wrote:
> >> Yes, it is the one from the same dataset (Data_COMSOL.mat). The isovalue
> is
> >> -1.
> >>
> >> On Fri, Oct 30, 2009 at 10:56 PM, Bill Lorensen <
> bill.lorensen at gmail.com>
> >> wrote:
> >>>
> >>> In the COMSOL isosurface image that you sent, is that from one of
> >>> these datasets and if so, what was the isovalue?
> >>>
> >>>
> >>> On Fri, Oct 30, 2009 at 11:53 PM, Sanket Jain <jainsanket1 at gmail.com>
> >>> wrote:
> >>> > In the COMSOL software, there is a mesher. I use the mesher in COMSOL
> >>> > for
> >>> > creating mesh. I do not specify the number of meshes. I just increase
> >>> > the
> >>> > mesh density near the electrodes. I do not mention anywhere the
> number
> >>> > of
> >>> > meshes. But obviously, the number of points in the vtk file is
> dependent
> >>> > upon the number of mesh created in COMSOL.
> >>> >
> >>> > On Fri, Oct 30, 2009 at 10:40 PM, Bill Lorensen
> >>> > <bill.lorensen at gmail.com>
> >>> > wrote:
> >>> >>
> >>> >> How is the mesh created? Do you specify the number of tetrahedra or
> >>> >> are they used for the analysis?
> >>> >>
> >>> >> On Fri, Oct 30, 2009 at 6:11 PM, Sanket Jain <jainsanket1 at gmail.com
> >
> >>> >> wrote:
> >>> >> > I did not understand what you meant by conversion. I assume you
> meant
> >>> >> > converting my geometry and data into vtk file. Below is a
> description
> >>> >> > of
> >>> >> > what I am doing. Maybe this helps to narrow down the problem.
> >>> >> >
> >>> >> > Actually there is no comsol file format. COMSOL is a software
> which
> >>> >> > can
> >>> >> > be
> >>> >> > linked with MATLAB (Like a toolbox; but its a seperate software).
> I
> >>> >> > create
> >>> >> > my FEM model in COMSOL and compute the solutions. Since, MATLAB
> and
> >>> >> > COMSOL
> >>> >> > are connected, I can take the mesh points, connections and
> solutions
> >>> >> > (scalars) from COMSOL and save them as .vtk file (unstructured
> grid)
> >>> >> > using
> >>> >> > my custom .m file (attached).
> >>> >> >
> >>> >> > Also, I have another custom method of solving the FEM problem
> which
> >>> >> > is
> >>> >> > also
> >>> >> > MATLAB based. So, for 1 problem I have 2 sets of scalars and one
> set
> >>> >> > of
> >>> >> > mesh
> >>> >> > points and connections (geometry). I save vtk file from the
> scalars
> >>> >> > from
> >>> >> > alternate method using the same . m file
> >>> >> >
> >>> >> > Therefore, I have 2 vtk files (both unstructured grid) with same
> >>> >> > geometry
> >>> >> > but different scalars. But, when I visualise both of them in VTK
> (and
> >>> >> > paraview), I have these rough surfaces.
> >>> >> >
> >>> >> > I am attaching both these vtk files for your reference. Also, I am
> >>> >> > attaching
> >>> >> > .m file which reads a .mat file (either data_COMSOL or
> data_CUSTOM)
> >>> >> > and
> >>> >> > writes these corresponding .vtk files.
> >>> >> >
> >>> >> > Let me know if I have confused you. I will be happy to clarify my
> >>> >> > explanation.
> >>> >> >
> >>> >> > Sanket Jain
> >>> >> >
> >>> >> > On Fri, Oct 30, 2009 at 3:51 PM, Sanket Jain <
> jainsanket1 at gmail.com>
> >>> >> > wrote:
> >>> >> >>
> >>> >> >> No the comsol file is not open format. You will require COMSOL
> >>> >> >> software
> >>> >> >> to
> >>> >> >> view it. Anyways, I will check the scalar values and then if the
> >>> >> >> problem
> >>> >> >> still persists, i will update you with my work.
> >>> >> >>
> >>> >> >> Sanket
> >>> >> >>
> >>> >> >> On Fri, Oct 30, 2009 at 2:11 PM, Bill Lorensen
> >>> >> >> <bill.lorensen at gmail.com>
> >>> >> >> wrote:
> >>> >> >>>
> >>> >> >>> So, my guess is that there is something wrong in your
> conversion.
> >>> >> >>> Is
> >>> >> >>> the comsol file format an open format? Is there a description?
> If
> >>> >> >>> so,
> >>> >> >>> can you provide the comsol file you are trying to convert?
> >>> >> >>>
> >>> >> >>> Bill
> >>> >> >>>
> >>> >> >>> On Fri, Oct 30, 2009 at 1:22 PM, Sanket Jain
> >>> >> >>> <jainsanket1 at gmail.com>
> >>> >> >>> wrote:
> >>> >> >>> > Yes, I generated the isosurface in comsol. It looks smoother
> than
> >>> >> >>> > in
> >>> >> >>> > VTK. I
> >>> >> >>> > have attached an view for the isosurface. It looks similar
> when I
> >>> >> >>> > rotate the
> >>> >> >>> > isosurface for different view.
> >>> >> >>> >
> >>> >> >>> > Sanket
> >>> >> >>> >
> >>> >> >>> > On Fri, Oct 30, 2009 at 12:13 PM, Bill Lorensen
> >>> >> >>> > <bill.lorensen at gmail.com>
> >>> >> >>> > wrote:
> >>> >> >>> >>
> >>> >> >>> >> The file and data seem OK. I looked at it in paraview and I
> see
> >>> >> >>> >> the
> >>> >> >>> >> same sort of "rough" isosurfaces that you see.  Can you
> generate
> >>> >> >>> >> an
> >>> >> >>> >> isosurface in COMSOL for comparison?
> >>> >> >>> >>
> >>> >> >>> >> Bill
> >>> >> >>> >>
> >>> >> >>> >> On Fri, Oct 30, 2009 at 12:36 PM, Bill Lorensen
> >>> >> >>> >> <bill.lorensen at gmail.com>
> >>> >> >>> >> wrote:
> >>> >> >>> >> > If the outside of your mesh is a "box", that is all you
> will
> >>> >> >>> >> > see.
> >>> >> >>> >> >
> >>> >> >>> >> > I'll take a look.
> >>> >> >>> >> >
> >>> >> >>> >> > Bill
> >>> >> >>> >> >
> >>> >> >>> >> > On Fri, Oct 30, 2009 at 12:27 PM, Sanket Jain
> >>> >> >>> >> > <jainsanket1 at gmail.com>
> >>> >> >>> >> > wrote:
> >>> >> >>> >> >> When I open the unstructured grid file in paraview, I get
> a
> >>> >> >>> >> >> opaque
> >>> >> >>> >> >> border of
> >>> >> >>> >> >> my geometry. When I decrease the opacity, I just see a
> hollow
> >>> >> >>> >> >> box.
> >>> >> >>> >> >> I
> >>> >> >>> >> >> cannot
> >>> >> >>> >> >> see my mesh inside the box. I think there is some problem
> >>> >> >>> >> >> with
> >>> >> >>> >> >> the
> >>> >> >>> >> >> file. But
> >>> >> >>> >> >> I compared my file with the format for writing
> unstructured
> >>> >> >>> >> >> grid
> >>> >> >>> >> >> and it
> >>> >> >>> >> >> looks correct to me. Do you mind having a look at the file
> >>> >> >>> >> >> (attached)?
> >>> >> >>> >> >> I
> >>> >> >>> >> >> know this might be asking for too much help. I really
> >>> >> >>> >> >> appreciate
> >>> >> >>> >> >> your
> >>> >> >>> >> >> efforts to help me.
> >>> >> >>> >> >>
> >>> >> >>> >> >> Sanket
> >>> >> >>> >> >>
> >>> >> >>> >> >> On Fri, Oct 30, 2009 at 11:17 AM, Bill Lorensen
> >>> >> >>> >> >> <bill.lorensen at gmail.com>
> >>> >> >>> >> >> wrote:
> >>> >> >>> >> >>>
> >>> >> >>> >> >>> I mean the unstructured grid (the geometry).
> >>> >> >>> >> >>>
> >>> >> >>> >> >>> On Fri, Oct 30, 2009 at 12:10 PM, Sanket Jain
> >>> >> >>> >> >>> <jainsanket1 at gmail.com>
> >>> >> >>> >> >>> wrote:
> >>> >> >>> >> >>> > Ok. I will recheck my matlab program which writes the
> vtk
> >>> >> >>> >> >>> > file
> >>> >> >>> >> >>> > and
> >>> >> >>> >> >>> > get
> >>> >> >>> >> >>> > back
> >>> >> >>> >> >>> > to you.
> >>> >> >>> >> >>> >
> >>> >> >>> >> >>> > For Paraview, did you mean only the mesh points without
> >>> >> >>> >> >>> > the
> >>> >> >>> >> >>> > scalar
> >>> >> >>> >> >>> > values? I
> >>> >> >>> >> >>> > checked the unstructured grid with scalars on them.
> They
> >>> >> >>> >> >>> > look
> >>> >> >>> >> >>> > exactly
> >>> >> >>> >> >>> > the
> >>> >> >>> >> >>> > same as in my VTK code.
> >>> >> >>> >> >>> >
> >>> >> >>> >> >>> > Sanket
> >>> >> >>> >> >>> >
> >>> >> >>> >> >>> > On Fri, Oct 30, 2009 at 7:55 AM, Bill Lorensen
> >>> >> >>> >> >>> > <bill.lorensen at gmail.com>
> >>> >> >>> >> >>> > wrote:
> >>> >> >>> >> >>> >>
> >>> >> >>> >> >>> >> Perhaps your scalar values are not associated with the
> >>> >> >>> >> >>> >> proper
> >>> >> >>> >> >>> >> points?
> >>> >> >>> >> >>> >> Have you looked at the original unstructured grid with
> >>> >> >>> >> >>> >> paraview?
> >>> >> >>> >> >>> >>
> >>> >> >>> >> >>> >> On Thu, Oct 29, 2009 at 10:21 PM, Sanket Jain
> >>> >> >>> >> >>> >> <jainsanket1 at gmail.com>
> >>> >> >>> >> >>> >> wrote:
> >>> >> >>> >> >>> >> > Yes, I tried for number of isovalues. But all of
> them
> >>> >> >>> >> >>> >> > have
> >>> >> >>> >> >>> >> > similar
> >>> >> >>> >> >>> >> > characteristics. Is it anything to do with the vtk
> file
> >>> >> >>> >> >>> >> > being
> >>> >> >>> >> >>> >> > in
> >>> >> >>> >> >>> >> > unstructured grid rather than polygonal data? For
> the
> >>> >> >>> >> >>> >> > mesh, I
> >>> >> >>> >> >>> >> > imported
> >>> >> >>> >> >>> >> > from
> >>> >> >>> >> >>> >> > COMSOL, I cannot use polygonal data.
> >>> >> >>> >> >>> >> >
> >>> >> >>> >> >>> >> > Sanket Jain
> >>> >> >>> >> >>> >> > On Thu, Oct 29, 2009 at 6:33 PM, Bill Lorensen
> >>> >> >>> >> >>> >> > <bill.lorensen at gmail.com>
> >>> >> >>> >> >>> >> > wrote:
> >>> >> >>> >> >>> >> >>
> >>> >> >>> >> >>> >> >> It does look strange. Have you tried changing the
> >>> >> >>> >> >>> >> >> isosurface
> >>> >> >>> >> >>> >> >> value?
> >>> >> >>> >> >>> >> >>
> >>> >> >>> >> >>> >> >> On Thu, Oct 29, 2009 at 5:44 PM, Sanket Jain
> >>> >> >>> >> >>> >> >> <jainsanket1 at gmail.com>
> >>> >> >>> >> >>> >> >> wrote:
> >>> >> >>> >> >>> >> >> > I have attached a snapshot of my viewer. The
> >>> >> >>> >> >>> >> >> > isosurface
> >>> >> >>> >> >>> >> >> > is
> >>> >> >>> >> >>> >> >> > predicting
> >>> >> >>> >> >>> >> >> > the
> >>> >> >>> >> >>> >> >> > volume activated during monopolar stimulation.
> So,
> >>> >> >>> >> >>> >> >> > theoretically
> >>> >> >>> >> >>> >> >> > you
> >>> >> >>> >> >>> >> >> > will
> >>> >> >>> >> >>> >> >> > expect a sphere at a particular iso value.
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >> > I tried using vtkPolyDataNormals. The figure
> >>> >> >>> >> >>> >> >> > attached
> >>> >> >>> >> >>> >> >> > is
> >>> >> >>> >> >>> >> >> > the
> >>> >> >>> >> >>> >> >> > output
> >>> >> >>> >> >>> >> >> > after
> >>> >> >>> >> >>> >> >> > including this filter. But I still think this is
> not
> >>> >> >>> >> >>> >> >> > smooth.
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >> > I verified by opening my vtk file in Paraview
> (with,
> >>> >> >>> >> >>> >> >> > Compute
> >>> >> >>> >> >>> >> >> > Normal
> >>> >> >>> >> >>> >> >> > ON).
> >>> >> >>> >> >>> >> >> > Even then i get the same kind of response. So, do
> >>> >> >>> >> >>> >> >> > you
> >>> >> >>> >> >>> >> >> > think
> >>> >> >>> >> >>> >> >> > this
> >>> >> >>> >> >>> >> >> > is
> >>> >> >>> >> >>> >> >> > the
> >>> >> >>> >> >>> >> >> > best
> >>> >> >>> >> >>> >> >> > i can get? Or there might be some problem in the
> vtk
> >>> >> >>> >> >>> >> >> > file
> >>> >> >>> >> >>> >> >> > which is
> >>> >> >>> >> >>> >> >> > exported
> >>> >> >>> >> >>> >> >> > from COMSOL (I verified it multiple times).
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >> > Thank you,
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >> > Sanket
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >> > On Thu, Oct 29, 2009 at 4:01 PM, Bill Lorensen
> >>> >> >>> >> >>> >> >> > <bill.lorensen at gmail.com>
> >>> >> >>> >> >>> >> >> > wrote:
> >>> >> >>> >> >>> >> >> >>
> >>> >> >>> >> >>> >> >> >> Sorry, reading your e-mail in more detail. Are
> you
> >>> >> >>> >> >>> >> >> >> generating
> >>> >> >>> >> >>> >> >> >> the
> >>> >> >>> >> >>> >> >> >> isosurfaces in vtk using vtkContourFIiter or
> some
> >>> >> >>> >> >>> >> >> >> equivalent.
> >>> >> >>> >> >>> >> >> >> If
> >>> >> >>> >> >>> >> >> >> so,
> >>> >> >>> >> >>> >> >> >> you should run the output through
> >>> >> >>> >> >>> >> >> >> vtkPolyDataNormals.
> >>> >> >>> >> >>> >> >> >>
> >>> >> >>> >> >>> >> >> >> On Thu, Oct 29, 2009 at 4:59 PM, Bill Lorensen
> >>> >> >>> >> >>> >> >> >> <bill.lorensen at gmail.com>
> >>> >> >>> >> >>> >> >> >> wrote:
> >>> >> >>> >> >>> >> >> >> > What do you mean by rough? Perhaps the faces
> are
> >>> >> >>> >> >>> >> >> >> > flat
> >>> >> >>> >> >>> >> >> >> > shaded?
> >>> >> >>> >> >>> >> >> >> > How
> >>> >> >>> >> >>> >> >> >> > are
> >>> >> >>> >> >>> >> >> >> > you displaying the model in vtk?
> >>> >> >>> >> >>> >> >> >> >
> >>> >> >>> >> >>> >> >> >> > Are your isosurfaces composed of only
> triangles?
> >>> >> >>> >> >>> >> >> >> > If
> >>> >> >>> >> >>> >> >> >> > so,
> >>> >> >>> >> >>> >> >> >> > did
> >>> >> >>> >> >>> >> >> >> > you
> >>> >> >>> >> >>> >> >> >> > provide surface normals at each point?
> >>> >> >>> >> >>> >> >> >> >
> >>> >> >>> >> >>> >> >> >> > On Thu, Oct 29, 2009 at 4:30 PM, Sanket Jain
> >>> >> >>> >> >>> >> >> >> > <jainsanket1 at gmail.com>
> >>> >> >>> >> >>> >> >> >> > wrote:
> >>> >> >>> >> >>> >> >> >> >> Hello Experts,
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> I have just started to use VTK to fulfill my
> >>> >> >>> >> >>> >> >> >> >> visualization
> >>> >> >>> >> >>> >> >> >> >> needs.
> >>> >> >>> >> >>> >> >> >> >> I
> >>> >> >>> >> >>> >> >> >> >> am
> >>> >> >>> >> >>> >> >> >> >> trying out few fundamental steps which would
> be
> >>> >> >>> >> >>> >> >> >> >> crucial
> >>> >> >>> >> >>> >> >> >> >> for my
> >>> >> >>> >> >>> >> >> >> >> future
> >>> >> >>> >> >>> >> >> >> >> development.
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> I exported an  Finite Element Model (FEM)
> from
> >>> >> >>> >> >>> >> >> >> >> COMSOL
> >>> >> >>> >> >>> >> >> >> >> and
> >>> >> >>> >> >>> >> >> >> >> wrote
> >>> >> >>> >> >>> >> >> >> >> it
> >>> >> >>> >> >>> >> >> >> >> as
> >>> >> >>> >> >>> >> >> >> >> vtk
> >>> >> >>> >> >>> >> >> >> >> unstructured grid in matlab (points,
> connections
> >>> >> >>> >> >>> >> >> >> >> and
> >>> >> >>> >> >>> >> >> >> >> data). I
> >>> >> >>> >> >>> >> >> >> >> am
> >>> >> >>> >> >>> >> >> >> >> just
> >>> >> >>> >> >>> >> >> >> >> trying
> >>> >> >>> >> >>> >> >> >> >> to read my vtk file and trying to visualize
> the
> >>> >> >>> >> >>> >> >> >> >> isosurfaces at
> >>> >> >>> >> >>> >> >> >> >> some
> >>> >> >>> >> >>> >> >> >> >> value.
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> The problem is the isosurfaces are very rough
> >>> >> >>> >> >>> >> >> >> >> even
> >>> >> >>> >> >>> >> >> >> >> when I
> >>> >> >>> >> >>> >> >> >> >> increased
> >>> >> >>> >> >>> >> >> >> >> the
> >>> >> >>> >> >>> >> >> >> >> mesh
> >>> >> >>> >> >>> >> >> >> >> density in my COMSOL model. I tried to
> perform
> >>> >> >>> >> >>> >> >> >> >> the
> >>> >> >>> >> >>> >> >> >> >> same
> >>> >> >>> >> >>> >> >> >> >> task
> >>> >> >>> >> >>> >> >> >> >> in
> >>> >> >>> >> >>> >> >> >> >> paraview and
> >>> >> >>> >> >>> >> >> >> >> even there i saw the same problem.
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> Do you think that increasing the mesh density
> >>> >> >>> >> >>> >> >> >> >> should
> >>> >> >>> >> >>> >> >> >> >> solve
> >>> >> >>> >> >>> >> >> >> >> it?
> >>> >> >>> >> >>> >> >> >> >> I
> >>> >> >>> >> >>> >> >> >> >> cannot
> >>> >> >>> >> >>> >> >> >> >> increase the mesh density because of
> >>> >> >>> >> >>> >> >> >> >> computational
> >>> >> >>> >> >>> >> >> >> >> issues.
> >>> >> >>> >> >>> >> >> >> >> Any
> >>> >> >>> >> >>> >> >> >> >> ideas
> >>> >> >>> >> >>> >> >> >> >> on
> >>> >> >>> >> >>> >> >> >> >> this
> >>> >> >>> >> >>> >> >> >> >> problem will be appreciated.
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> Thank you,
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> Sanket Jain
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >>
> _______________________________________________
> >>> >> >>> >> >>> >> >> >> >> Powered by www.kitware.com
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> Visit other Kitware open-source projects at
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >>
> http://www.kitware.com/opensource/opensource.html
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> Please keep messages on-topic and check the
> VTK
> >>> >> >>> >> >>> >> >> >> >> FAQ
> >>> >> >>> >> >>> >> >> >> >> at:
> >>> >> >>> >> >>> >> >> >> >> http://www.vtk.org/Wiki/VTK_FAQ
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >> Follow this link to subscribe/unsubscribe:
> >>> >> >>> >> >>> >> >> >> >> http://www.vtk.org/mailman/listinfo/vtkusers
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >>
> >>> >> >>> >> >>> >> >> >> >
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >> > --
> >>> >> >>> >> >>> >> >> > Sanket Jain
> >>> >> >>> >> >>> >> >> >
> >>> >> >>> >> >>> >> >
> >>> >> >>> >> >>> >> >
> >>> >> >>> >> >>> >> >
> >>> >> >>> >> >>> >> > --
> >>> >> >>> >> >>> >> > Sanket Jain
> >>> >> >>> >> >>> >> >
> >>> >> >>> >> >>> >
> >>> >> >>> >> >>> >
> >>> >> >>> >> >>> >
> >>> >> >>> >> >>> > --
> >>> >> >>> >> >>> > Sanket Jain
> >>> >> >>> >> >>> >
> >>> >> >>> >> >>
> >>> >> >>> >> >>
> >>> >> >>> >> >>
> >>> >> >>> >> >> --
> >>> >> >>> >> >> Sanket Jain
> >>> >> >>> >> >>
> >>> >> >>> >> >
> >>> >> >>> >
> >>> >> >>> >
> >>> >> >>> >
> >>> >> >>> > --
> >>> >> >>> > Sanket Jain
> >>> >> >>> >
> >>> >> >>
> >>> >> >>
> >>> >> >>
> >>> >> >> --
> >>> >> >> Sanket Jain
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >> > --
> >>> >> > Sanket Jain
> >>> >> >
> >>> >
> >>> >
> >>> >
> >>> > --
> >>> > Sanket Jain
> >>> >
> >>
> >>
> >>
> >> --
> >> Sanket Jain
> >>
> >
>

-- 
Sanket Jain
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