[Insight-users] Re: matrix and vector

[Bing Jian]

Hello,

  Can anybody help me following questions?

(0) Is there an easy way to read/write one column or row vector
of a matrix?
(1) Does interpolater accept vector or matrix image as input?
(2) Can we extract vector image from matrix image
in the same way as VectorPixelAccessor?

  Thanks in  advance!


On Thu, 9 Oct 2003, Bing Jian wrote:

>
> Hello,
>
>    Is there an easy way to assign a vector to ith row or col of
> matrix?
>    e.g.
>         itk::Matrix<T, m, n> A;
>         itk::Vector<T, n> x;
>         A[i] = x;
>
>   I looked through the reference page of itk::Matrix, only found
>
> T *  operator[] (unsigned int i)
> const T *  operator[] (unsigned int i) const
>
>   So do we need to use GetVnlMatrix()?
>
>