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<DIV><FONT face=Calibri>My understanding of vtkTransform is that it
resamples/reorients the pixel data. Does that mean vtkImageData assumes a
particular coordinate system and it's the user's responsibility to keep track of
orientations?</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>Xiaofeng</FONT></DIV>
<DIV><FONT face=Calibri></FONT><BR></DIV>
<DIV dir=ltr>You can use vtkTransform to rotate the RT Dose matric to your
desired orientation.<BR><BR>Jothy<BR><BR>
<DIV class=gmail_quote>On Fri, Nov 5, 2010 at 2:09 AM, Xiaofeng Z <SPAN
dir=ltr><<A
href="mailto:xf10036@hotmail.com">xf10036@hotmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
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class=gmail_quote>
<DIV>Hi, vtkusers,<BR><BR>I have this algorithm that computes dose-volume
histogram out of RT structureset and RT Dose. Right now the algorithm
works only when RT Dose has a 1,0,0 and 0,1,0 orientation. I need to use
the algorithm for other RT Dose orientations. I have too options, either
to modify the algorithm, or to convert RT Dose orientation to 1,0,0 and
0,1,0. I prefer to former, but only if vtkImageData support multiple
orientations.<BR><BR>So my question is, can vtkImageData store pixel data in
different orientation, and if so, how the orientation information is set and
get?<BR><BR>Thanks!<BR><BR>Xiaofeng<BR><BR><BR><BR><BR>
<HR>
From: <A href="mailto:xf10036@hotmail.com"
target=_blank>xf10036@hotmail.com</A><BR>To: <A href="mailto:vtkusers@vtk.org"
target=_blank>vtkusers@vtk.org</A><BR>Date: Thu, 4 Nov 2010 21:02:08
-0400<BR>Subject: [vtkusers] question on vtkImageData orientation support
<DIV class=im><BR><BR>Does vtkImageData:SetExt(int ext[]) support inverse
orientation, such that ext[0]<ext[1], ext[2]<ext[3],
etc?<BR><BR>Thanks!<BR><BR><BR></DIV>_______________________________________________
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