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[IV3D-USERS] Y axis of 2D transfer function editor


Chronological Thread 
  • From: Scott Krehbiel <scott.krehbiel@sri.com>
  • To: <iv3d-users@sci.utah.edu>
  • Subject: [IV3D-USERS] Y axis of 2D transfer function editor
  • Date: Fri, 21 Sep 2012 14:14:39 -0700

Hi,
I'm looking at the example scenes, and I'm a bit confused.

I understand that the X axis seems to be the radiodensity of the sampled location. In the CT scans, Bone is further to the right, and skin is further to the left. I don't yet understand the Y axis though. Wouldn't everything at the same X coordinate have the same density?

If radiodensity is mapped to X, then what is mapped to Y? Is it the local average density - ie; how dense are the surrounding voxels?

Any help is much appreciated
thanks
Scott

--
3D Visual Database Specialist
Geovisualization Center
SRI International


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