[Insight-users] Fwd: change vector length of itkVectorImage at runtime

[sebastian ordas]

good. So in order to append a new component to my vector image, I will
create a new vector image with the new data and use the ComposeImageFilter
or something alike to get the final one.

than you!
sebastian


On Wed, Sep 11, 2013 at 1:41 PM, Bradley Lowekamp <blowekamp at mail.nih.gov>wrote:

> Hello,
>
> There is not resize in place for the vector pixels. That is a lot of
> copying to get to an undefined state. It's better to copy as you know what
> the new values should be.
>
> Have you looked into the ComposeImageFilter?
>
> http://www.itk.org/Doxygen/html/classitk_1_1ComposeImageFilter.html
>
> You should be able to join 2 vector images together. If the second vector
> image has the new values you want then it should be able to efficiently
> create the new vector image.
>
> Brad
>
> On Sep 11, 2013, at 6:51 AM, sebastian ordas <sebastian.ordas at gmail.com>
> wrote:
>
> > Hello,
> >
> > I would like to change the vector length of an itk::VectorImage at
> runtime.
> >
> > e.g.:
> >
> > image->SetVectorLength(Components+1);
> > image->Allocate();
> >
> > My problem is that previous components are overwritten
> > Is it possible to this on the fly? or should I create a new VectorImage
> > and transfer the image components one by one?
> >
> > many thanks,
> > sebastian
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