[IGSTK-Developers] Re: itkPivotCallibration

[Hui Zhang]

Hi, Luis,

I use std::vector<double> as the container for the samples of translation 
and rotation.

  typedef std::vector< double >           InputContainerType;
.....
  /** Container to save the samples */
  InputContainerType    m_Quaternion[4];
  InputContainerType    m_Translation[3];

That typedef std::vector< double > is only for the one element of Quaternion 
or Vector, so that there have four containers for Quaternion and three 
containers for Vector. My orginal code only makes use of VNL, and is not 
from ITK layer, so I use STL instead. I know that ITK has Versor and Vector 
type, but I am not sure whether ITK provides the container for them, eg, an 
array of Versors or Vectors and the size can be dynamically changed. If ITK 
has them, I can definitely try to change this from STL to ITK.

Thanks,
James

----- Original Message ----- 
From: "Luis Ibanez" <luis.ibanez at kitware.com>
To: "Hui Zhang" <zhang at isis.imac.georgetown.edu>
Cc: "David Gobbi" <dgobbi at atamai.com>; "IGSTK Developers" 
<igstk-developers at public.kitware.com>
Sent: Thursday, December 08, 2005 2:03 PM
Subject: itkPivotCallibration


>
> Hi James,
>
> I'm looking at the PivotCallibration class and was
> wondering why you are using std::vector<double>
> for representing Quaternions and Vectors.
>
> ITK already provide you with Vectors and Versor
> classes that you could use here.
>
> Is there any particular reason why you decided to
> use the std::vector<>  instead of ITK classes ?
>
>
>  Please let me know,
>
>
>      Thanks
>
>
>        Luis
>
>
>
>