[vtkusers] Montege 4X4 of some 3D Volume's slices

[Daniela Sacchetto]

Hi Eric
I'm trying to follow also your suggestion to value if it is better or no than Darshan's one... But I have a first  problem: how can I modify that code to use it with my Image set? Because now I'm able to run it only with /usr/local/vtk/VTKData/Data/headsq/quarter and I don't understand what quarter.1-quarter.93 are...

Could you explain me?
Thanks
Daniela

Subject: Re: [vtkusers] Montege 4X4 of some 3D Volume's slices
From: emonson at cs.duke.edu
Date: Thu, 3 Jun 2010 14:08:18 -0400
CC: danysunflower at hotmail.it; vtkusers at vtk.org
To: darshanpai at gmail.com



Hey Daniela,
I guess I would suggest a different possibility. For each slice, you could set up a vtkImageReslice filter, and each one can go through a vtkImageMapToColors and then to a vtkImageActor. For each actor you can then use the SetPosition() method to arrange them in the 4x4 grid of images. Then, if you want to change the slices that are displayed, you just change the matrix that sets the "reslice axes" for that particular image. 
This method is taken directly from the ImageSlicing.cxx example in [vtk_source]/Examples/ImageProcessing/Cxx (or there are Python and Tcl examples of the same code in their respective subdirectories).
Talk to you later,-Eric

------------------------------------------------------Eric E MonsonDuke Visualization Technology Group
On Jun 3, 2010, at 1:57 PM, Darshan Pai wrote:Yes You can definately do that .
You can start with vtkImageDataGeometryFilter and set the extent depending on what slice you want. The resulting polyData can be connected to the mapper . also add a lookuptable to the mapper and render.


Regards
Darshan 

On Thu, Jun 3, 2010 at 1:06 PM, Daniela Sacchetto <danysunflower at hotmail.it> wrote:






Hi everyone

I have a question for you.
I'm working with a 3D rendered volume and I would like to do a ''montage'' 4x4 of some significative slices (as CT o RM traditional images...) in my vtkRenderWindow...

 Is it possible? Is there any vtk method to do something similar?

Thank to everyone who will help me
Daniela
 		 	   		  
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