[vtkusers] Fast element access of vtkImageData?

[Georg Ziegler]

Am 28.07.2011 17:00, schrieb David Doria:
> On Thu, Jul 28, 2011 at 10:57 AM, John Drescher<drescherjm at gmail.com>  wrote:
>> BTW, David Doria has a repository on github that implements some fast
>> access iterators for vtk here:
>>
>> https://github.com/daviddoria/vtkImageTraversal
>>
>> John
> No, no, please don't use those. They were never finished and were a
> very bad approach to start with. However, if someone wants to puck up
> that work, that'd be a great idea!
>
> David

Also vtk has a built-in iterator.
http://www.vtk.org/doc/nightly/html/classvtkImageIterator.html

I use them only for 1-component images though.
As speed is an issue here. Has anyone compared the performance of that 
iterator and the pointer access method described in previous mails in 
this thread?

Georg