[Insight-developers] ImageIO Streaming

[Bill Lorensen]

Or should it be ComputeStreamableReadRegionFromRequestedRegion. I don't
recall any other method names that start with Determining.

Bill

On 7/2/07, Bill Lorensen <bill.lorensen at gmail.com> wrote:
>
> I assume Determining will be spelled correctly and not Determing?
>
> Bill
>
> On 7/2/07, Hans Johnson <hans-johnson at uiowa.edu > wrote:
> >
> > Luis,
> >
> > I was thinking about this also.  I would think that the answer is
> > "Probably".  If you write a sub-region to a new file, I think that you
> > will
> > actually need to write a "LargestPossibleRegion" to make a valid file
> > output.  The area outside the specified region should be all zeros (or
> > some
> > specified background value).  If you were writing to an existing file,
> > then
> > only the voxels in the specified region should be modified in the
> > resulting
> > output file.
> >
> > This problem is much harder, and less likely to be needed at the moment.
> >
> > I'd like to focus on just the streaming read problems for the moment.
> >
> > ====
> > It is, however, critical that the function names are changed now so that
> > we
> > can maintain backwards compatibility once the file writing mechanisms
> > are
> > ready to be implemented.
> >
> >
> > Hans
> >
> >
> >
> > --
> > Hans J. Johnson, Ph.D.
> > Hans-johnson at uiowa.edu
> >
> > 278 GH
> > The University of Iowa
> > Iowa City, IA 52241
> > (319) 353 8587
> >
> >
> > > From: Luis Ibanez <luis.ibanez at kitware.com>
> > > Date: Mon, 02 Jul 2007 16:34:29 -0400
> > > To: Hans Johnson < hans-johnson at uiowa.edu>
> > > Cc: Kent Williams <norman-k-williams at uiowa.edu>, ITK
> > > <insight-developers at itk.org >
> > > Subject: Re: [Insight-developers] ImageIO Streaming
> > >
> > >
> > > Hi Hans,
> > >
> > > Thanks for the quick answer.
> > >
> > > I'll proceed to remove the CanStreamRead() method from the API.
> > >
> > > On a second note, I would imagine that for writing we need a twin
> > > method of the DetermingStreamableRegionFromRequestedRegion().
> > >
> > > That means that we probably should rename this method as:
> > >
> > >    DetermingStreamableReadRegionFromRequestedRegion()
> > >                       ^^^^
> > >
> > > or something along those lines.
> > >
> > > The twin method:
> > >
> > >    DetermingStreamableWriteRegionFromRequestedRegion()
> > >                       ^^^^^
> > >
> > > Will define the smallest image region that the ImageIO object
> > > can write when requested to write a "RequestedRegion".  E.g.
> > > it will enlarge the output region to the quantum units of the
> > > fileformat.
> > >
> > >
> > >   Will this apply to "Nifi"  ?
> > >
> > >
> > >    Thanks
> > >
> > >
> > >
> > >      Luis
> > >
> > >
> > > ---------------------
> > > Hans Johnson wrote:
> > >> Luis,
> > >>
> > >> I fully support removing the CanStreamRead method.
> > >> Hans
> > >>
> >
> > _______________________________________________
> > Insight-developers mailing list
> > Insight-developers at itk.org
> > http://www.itk.org/mailman/listinfo/insight-developers
> >
>
>
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