Create ROI
Create ROI creates a region of interest map from the vertices
within or outside a border. Currently, one can only create an ROI
map containing a single region of interest.
In Border Mode,
select ROI from the pulldown
displayed at the left bottom of the Toolbar. Create
ROI is only active on surface structures in Montage,
All,
or Surface
views. (wb_command also has operations for creating ROIs both on
the surface and in volumes).
- Any Borders used to Create an ROI must be
displayed. If they are off, toggle Display Borders on in the Features
Toolbox Borders tab, specific borders
can be toggled on/off in Borders:
Selection.
- When a displayed border is clicked, the Create
Region of Interest box will pop up for creating and
saving an ROI consisting of all the vertices within the
selected border. An ROI can be saved as a Dense Label or
Label, with a label name and color, or as a Dense Scalar or
Metric, with a numeric map value.
- Create ROI assumes that a border you
choose to create an ROI from is a closed border. Border points
are moved to the vertices nearest to them and these vertices
are NOT considered to be part of the ROI to be created inside
the border. Note: If an open border is selected, the program
will automatically "close" the border by drawing a line from
the first point in the border to the last point in the border.
- Fields of the Create Region of
Interest box are automatically filled to create label or
scalar/metric ROIs with loaded file and map names. Use the New
buttons to create new Maps/Files. If you do
not change the File and Map names, the Map listed will be
overwritten, redrawn with the one new ROI for the
selected structure.
- Invert Selected Nodes option
selects all vertices WITHOUT (not inside) the selected border
to be part of the ROI. In this case, vertices nearest the
border points are included in the inverted nodes.
- When you are done creating ROIs, remember
to save your changes using Save/Manage
Files.