Cox, DonaldChugh, Jasdeep S.Greenberg, SaulGutwin, Carl2008-02-272008-02-271997-12-01http://hdl.handle.net/1880/45968Viewports into large visual workspaces are sometimes supplemented by a separate window that displays a miniaturized overview of the entire workspace. Instead of this separate window, we have layered a transparent version of the overview atop the viewport. Because the overview fills the display, it becomes the largest size possible. An exploratory study indicates that people can use this unusual system, where they switch between layers when performing a construction task.EngComputer Scienceunknown1997-609-1110.11575/PRISM/30791