If possible, it would be nice to keep quick conversion to a vtkRectilinearGrid in mind (by grabbing a pointer to the internal representation etc), much like we do with ITK images and vtkImageData.<br><br>Thanks<br>--<br>karthik<br>
<br><div class="gmail_quote">On Tue, Oct 5, 2010 at 9:24 AM, Cory Quammen <span dir="ltr"><<a href="mailto:cquammen@cs.unc.edu">cquammen@cs.unc.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
At the ITK workshop in Bethesda and during a subsequent microscopy<br>
telecon, a need for image types with non-uniform sample spacing was<br>
identified. I personally have a need for 3D images with irregular<br>
spacing in z, so I am interested in hearing if anyone is pursuing or<br>
is going to pursue explicit support for such an image type in ITK v4.<br>
<br>
My particular need boils down to having the method<br>
TransformIndexToPhysicalPoint() return a point that takes the<br>
non-uniform spacing in z into account. Right now I have a hack to make<br>
this happen in an ImageSource subclass, but I would like to have a<br>
more principled design.<br>
<br>
If anyone is interested, I have some ideas for implementing a<br>
RectilinearImage type that supports non-uniform spacing along each<br>
dimension, as well as some ideas on how to refactor the image type<br>
hierarchy (in a backwards-compatible way) to more nicely support this<br>
type of image.<br>
<br>
Cheers,<br>
Cory<br>
<br>
--<br>
Cory Quammen<br>
Computer Integrated Systems for Microscopy and Manipulation (CISMM)<br>
Department of Computer Science<br>
University of North Carolina at Chapel Hill<br>
<a href="http://www.cs.unc.edu/%7Ecquammen" target="_blank">http://www.cs.unc.edu/~cquammen</a><br>
_______________________________________________<br>
Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
<br>
Visit other Kitware open-source projects at<br>
<a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
<br>
Kitware offers ITK Training Courses, for more information visit:<br>
<a href="http://kitware.com/products/protraining.html" target="_blank">http://kitware.com/products/protraining.html</a><br>
<br>
Please keep messages on-topic and check the ITK FAQ at:<br>
<a href="http://www.itk.org/Wiki/ITK_FAQ" target="_blank">http://www.itk.org/Wiki/ITK_FAQ</a><br>
<br>
Follow this link to subscribe/unsubscribe:<br>
<a href="http://www.itk.org/mailman/listinfo/insight-developers" target="_blank">http://www.itk.org/mailman/listinfo/insight-developers</a><br>
</blockquote></div><br>