Sets the mode and defines the active region for the 'rubber band' widget. After executing set rband , rubber bands are defined by executing q pos which freezes the system until the user clicks, drags, and then releases the mouse somewhere within the active rband area. See the q pos reference page for details on the returned information. In box mode, as the user clicks and drags the mouse in the active rband area a box is drawn with one corner located at the initial click and the opposite corner located at the release point. In line mode, a line is drawn between these two points.
Examples See widgets for more information and examples.