Fitts pointing model has proven extremely useful forunderstanding basic selection in WIMP user interfaces. Yet todaysinterfaces involve more complex navigation within electronicenvironments. As navigation amounts to a form of multi-scalepointing, Fitts model can be applied to these more complex tasks.We report the results of a preliminary pointing… (More)
Figure 2. The screen display in the single-scale (A) and double-scale (B) condition (here targets are represented in gray). In each of the two examples shown, the lef target has just been acquired on the lower, macro line, and so the micro cursor above has just popped in from the right. Acquisition of the right macro target would cause the micro cursor to pop in from the lef.