Hi, Just to add to the discussion, going through the list, I have found three different ways of accomplishing overlaying of more than 1 metric file in caret. I summarize them below: (and please correct me if I am wrong)
Caret - Overlaying metric data onto atlas: 1. "You can convert metrics files to an RGB paint file, using up to 3 contrasts of your metrics at a time. Just go in Attributes/Metrics/Convert a Metrics file to RGB paint, or something like that. Then you select each contrast you want to display as red, blue and/or green, and the overlap will automatically be coded depending on the primitive colors of the 2 (or 3) contrasts overlapping." 2. "One way to display a metric overlayed over another is to display the first metric, convert the coloring to RGB Paint, set RGB Paint as the underlay, and then display the second metric as the Primary Overlay. * Display your first metric as desired. * Select Attributes Menu->Copy Current Coloring to RGB Paint. If desired, replace "New Column Name" with a more appropriate name. Press the OK button. * On the Display Control Dialog's Overlay/Underlay Surface page, change the Underlay to RGB (you should not notice any change in surface coloring at this time). * Display your second metric as the Overlay." 3. "One way to identify areas of overlap is to use Surface Menu->Region of Interest Operations. This method identifies nodes that are active in two or more metric columns. * On the Display Control, set the Metric to display one of your data columns. * Select Surface Menu->Region of Interest Operations. * Set the Selection Method to Nodes WIth Metric. Set the Low and High threshold to values appropriate for your data. Press the Select Nodes button. You should see your functional areas colored green in the Main Window. * Use the Display Control to display a different metric data column. * Back on the ROI dialog, adjust the Low and High threshold values if needed. Change "Normal Selection" to "And Selection (Intersection)" and press the Select Nodes button. Any nodes that are selected (green in the main window) overlap between the two metric columns. * In the Operate on Selected Nodes section, set the Operation to Assign Paint Attributes to Selected Nodes. Enter a name for the Paint Column and a Paint Name. Press the Assign Paint button. Set the paint color as desired. This paint is used to identify the overlapping regions. * Press the Close button on the ROI dialog. * Set the Paint as the overlay to display the overlapping regions." I personally find the first one easiest to do. (The same has been suggested by Donna as well). Hope this helps. Atesh Koul Graduate student, National Brain Research Center, India On Wed, Aug 8, 2012 at 9:34 PM, Donna Dierker <[email protected]>wrote: > Not in caret5, anyway. But this might be confusing, even if you could. > > There is a way to channel 3 metrics into red, green, and blue channels > (Attributes: Metric). > > You can threshold one of the metrics and generate areal borders around the > resulting clusters, which you can overlay on the other metric. > > > On Aug 7, 2012, at 3:55 PM, Pablo Polosecki wrote: > > > Dear Caret List, > > > > Is it possible to overlay 2 metric overlays (or more) on a surface and > > assign them different color schemes (palettes) so as to distinguish > > one from the other? So far I only found a global metric settings > > control in the Display Control. > > > > Thank you! > > Pablo > > _______________________________________________ > > caret-users mailing list > > [email protected] > > http://brainvis.wustl.edu/mailman/listinfo/caret-users > > > _______________________________________________ > caret-users mailing list > [email protected] > http://brainvis.wustl.edu/mailman/listinfo/caret-users >
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