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.