[vtkusers] vtkImageReslice using stencil

[E.R]

Sorry! 
I mean... I cant extract a specific region inside the reslice.
I only get the whole Reslice..fitted inside this whole extent (100, 300, 250, 300, 0, 0).

So I used vtkImageClip for that... 

my code is like this now:

reslice.SetOutputExtent(0, 511,0,804,0,0);
clip.SetOuputExtent(100, 300, 250, 300, 0, 0);
padFilter.SetOutputExtent(0, 511,0,804,0,0);

How I can produce the same result without using vtkImageClip??

--- Στις Δευτ., 20/09/10, ο/η David Gobbi <david.gobbi at gmail.com> έγραψε:

> Από: David Gobbi <david.gobbi at gmail.com>
> Θέμα: Re: [vtkusers] vtkImageReslice using stencil
> Προς: "E.R" <frantic_tictoc83 at yahoo.gr>
> Κοιν.: vtkusers at vtk.org
> Ημερομηνία: Δευτέρα, 20 Σεπτέμβριος 2010, 22:00
> Hi Elias,
> 
> You don't give enough information in your email.  When
> you say
> "it isn't working", that does not tell me what is going
> wrong.  Is
> the output shifted?  Empty?  Black?  Does it
> crash?
> 
>    David
> 
> 
> 2010/9/20 E.R <frantic_tictoc83 at yahoo.gr>:
> > Thank you very much!
> >
> > How I extract a specific region with
> reslice.SetOutputExtent(100, 300, 250, 300, 0, 0)? ?
> >
> > It's not working...Its the same with
> reslice.SetOuputExtent(0,200,0,50,0,0)...
> >
> >
> > --- Στις Δευτ., 20/09/10, ο/η David Gobbi
> <david.gobbi at gmail.com>
> έγραψε:
> >
> >> Από: David Gobbi <david.gobbi at gmail.com>
> >> Θέμα: Re: [vtkusers] vtkImageReslice using
> stencil
> >> Προς: "E.R" <frantic_tictoc83 at yahoo.gr>
> >> Κοιν.: vtkusers at vtk.org
> >> Ημερομηνία: Δευτέρα, 20
> Σεπτέμβριος 2010, 17:09
> >> Hi Elias,
> >>
> >> I recommend that you don't use vtkImageStencilData
> for what
> >> you are
> >> doing.  Instead, you should first use reslice on
> just
> >> the region, and
> >> then pad the output with vtkImagePadFilter:
> >>
> >>
>  padFilter.SetInputConnection(reslice.GetOutputPort());
> >>  reslice.SetOutputExtent(100, 300, 250, 300, 0,
> 0);
> >>  padFilter.SetOutputExtent(0, 511,0,804,0,0);
> >>
> >> With stencils, you cannot easily build a
> >> vtkImageStencilData from
> >> scratch.  The vtkImageStencilData should be only
> be
> >> produced by a
> >> source or filter.
> >>
> >>   David
> >>
> >>
> >>
> >>
> >>
> >>
> >> 2010/9/20 E.R <frantic_tictoc83 at yahoo.gr>:
> >> >  I have tried this..but I got a memory
> >> >  error.."Attempted to read or write
> protected
> >> memory"...
> >> >  What I am doing wrong????? :-|
> >> >
> >> >> --- Στις Δευτ., 20/09/10, ο/η
> Jim
> >> Peterson <jimcp at cox.net>
> >> >> έγραψε:
> >> >>
> >> >> > Από: Jim Peterson <jimcp at cox.net>
> >> >> > Θέμα: Re: [vtkusers]
> vtkImageReslice
> >> using
> >> >> stencil
> >> >> > Προς: "E.R" <frantic_tictoc83 at yahoo.gr>
> >> >> > Κοιν.: vtkusers at vtk.org
> >> >> > Ημερομηνία:
> Δευτέρα, 20
> >> >> Σεπτέμβριος 2010, 15:15
> >> >> > Elias,
> >> >> > If I read that error message
> correctly, it
> >> sounds
> >> >> like
> >> >> >
> reslice.SetOutputExtent(100,300,250,300,0,0)
> >> ;
> >> >> > would be accepted. The question is
> would it
> >> be the
> >> >> desired
> >> >> > result?
> >> >> >
> >> >> > HTH
> >> >> > Jim
> >> >> >
> >> >> > E.R wrote:
> >> >> > > Greetings!!
> >> >> > >
> >> >> > > I am using
> vtkImageReslice.setStencil()
> >> to limit
> >> >> a
> >> >> > specific area.
> >> >> > > My code is like that:
> >> >> > > vtkImageStencilData test = new
> >> >> vtkImageStencilData();
> >> >> > >
> >> >> > > test.SetExtent(100, 300, 250,
> 300, 0,
> >> 0);
> >> >> > >  reslice.SetStencil(test);
> >> >> > >  reslice.SetOutputExtent(0,
> >> 511,0,804,0,0);
> >> >> > >
> >> >> > > but I am getting this error
> message:
> >> >> > >
> >> >> > > "The update extent specified in
> the
> >> information
> >> >> for
> >> >> > output port 0 on algorithm
> >> >> vtkTrivialProducer(086731A0) is 0
> >> >> > 511 0 804 0 0, which is outside the
> whole
> >> extent 100
> >> >> 300 250
> >> >> > 300 0 0."
> >> >> > >
> >> >> > > What I am doing wrong?? How I
> ll set the
> >> stencil
> >> >> > inside my Image bounds?
> >> >> > >
> >> >> > > thanks in advance!
> >> >> > >
> >> >> > > Elias
> >> >> > >
> >> >> > >
> >> >> > >
> >> _______________________________________________
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> >> >> >
> >> >>
> >> >>
> >> >>
> >> >
> >> >
> >> >
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