John,Your answer was very helpful. Now I'm stuck with an initial flat map that has red highlights on a few of the edges. The tutorial says this means there are handles that need to be corrected in the segmentation volume. I don't have a volume. I have Freesurfer surfaces that I'm using to compare warping methods. Is there any solution to this cross over correction problem for already created surfaces?
There's just a little bit of red. Here's a picture. I can send more information, if that would be helpful.
Thank you. Julia -- Julia Molony SSCC/NIMH/NIH
<<inline: Init.Surf.crossovers 5.5_Figure40.jpg>>
On Jul 2, 2007, at 12:21 PM, John Harwell wrote:
Hi Julia,During the flattening process, the medial wall border is normally drawn on the Compressed Medial Wall Surface. The CMW surface is a sphere with the medial portion made flat so that 2D borders can be drawn on it. This surface should be selected from the model selection control in the main window's toolbar.The "Smooth Fiducial Medial Wall" option results in the fiducial surface's medial wall being smoothed during the flattening process. Smoothing will change the shape of the medial wall so that it is relatively flat. This option does not affect the sphere. There is normally some distortion around on the sphere that should be removed by the morphing process that is part of flattening.---------------------------------------------------------- John Harwell [EMAIL PROTECTED] 314-362-3467 Department of Anatomy and Neurobiology Washington University School of Medicine 660 S. Euclid Ave. Box 8108 St. Louis, MO 63110 USA On Jul 2, 2007, at 10:09 AM, Julia Molony wrote:I'm attempting to go through Caret's spherical registration stuff but first I need to work out how to draw all the borders. I'm following the 5.5 tutorial and I'm stuck trying to draw the medial wall borders. When I open the draw borders dialogue, choose the border name, set type to closed and dimension to 2D, and press apply, I can't draw the border. I click on the sphere and hold the left mouse button and nothing is drawn. Any ideas on what's going on? I checked the D/C to see if "show borders" was selected and it is. I've drawn borders in the past with no trouble, so I'm not sure what's happening here.Also, what does it mean in the "Flatten Full or Partial Hemisphere" box when it says "Smooth Fiducial Medial Wall". It looks like this smoothing is causing distortions in the sphere. It makes the sphere look sort of swirly around the medial wall area.Julia -- Julia Molony SSCC/NIMH/NIH _______________________________________________ caret-users mailing list caret-users@brainvis.wustl.edu http://pulvinar.wustl.edu/mailman/listinfo/caret-users_______________________________________________ caret-users mailing list caret-users@brainvis.wustl.edu http://pulvinar.wustl.edu/mailman/listinfo/caret-users
