[Insight-developers] GetNorm()

[Marius Staring]

Hi Karthik,

thanks for the fix.

Marius

Karthik Krishnan wrote:
> Fixed in CVS.
>
> /cvsroot/Insight/Insight/Code/Common/itkVariableLengthVector.h,v  <--  
> itkVariableLengthVector.h
> new revision: 1.13; previous revision: 1.12
> /cvsroot/Insight/Insight/Code/Common/itkVariableLengthVector.txx,v  
> <--  itkVariableLengthVector.txx
> new revision: 1.6; previous revision: 1.5
>
> Apologies for the long overdue reply.
>
> --
> karthik
>
> On 1/21/08, *Marius Staring * <marius at isi.uu.nl 
> <mailto:marius at isi.uu.nl>> wrote:
>
>     Hi,
>
>     could one of the developers reply to this mail?
>
>     Regards,
>
>     Marius
>
>     Marius Staring wrote:
>     > Hi developers,
>     >
>     > I think the itk::VariableLengthVector is missing a function
>     GetNorm(),
>     > similar to itk::Vector
>     >
>     > This can be fixed by adding
>     >
>     >  /** Returns vector's Euclidean Norm  */
>     >  RealValueType GetNorm() const;
>     >
>     > to the header file, and
>     >
>     > /**
>     > * Returns vector's Euclidean Norm
>     > */
>     > template < typename TValueType >
>     > typename VariableLengthVector< TValueType >::RealValueType
>     > VariableLengthVector<TValueType >
>     > ::GetNorm( void ) const
>     > {
>     >  return RealValueType( vcl_sqrt(double(this->GetSquaredNorm()) ));
>     > }
>     >
>     > to the txx. I tested this code under windows xp and visual c++ 2003.
>     >
>     > The function GetNorm() is for example used in the
>     > GradientToMagnitudeImageFilter, so currently this filter won't work
>     > with images of VariableLengthVector pixel type.
>     >
>     > Regards,
>     >
>     > Marius
>     >
>
>     --
>     Marius Staring
>     Image Sciences Institute
>     University Medical Centre Utrecht
>     Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
>     phone: +31 (0)88 75 53186, fax: +31 (0)30 251 3399
>     marius at isi.uu.nl <mailto:marius at isi.uu.nl>,
>     http://www.isi.uu.nl/People/Marius
>
>     _______________________________________________
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>     Insight-developers at itk.org <mailto:Insight-developers at itk.org>
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>

-- 
Marius Staring
Image Sciences Institute
University Medical Centre Utrecht
Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
phone: +31 (0)88 75 53186, fax: +31 (0)30 251 3399
marius at isi.uu.nl, http://www.isi.uu.nl/People/Marius

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