Re: Help menu: Findings and thoughts
- From: Gregory Merchan <merchan baton phys lsu edu>
- To: Ben FrantzDale <frantb rpi edu>
- Cc: gnome-gui-list gnome org
- Subject: Re: Help menu: Findings and thoughts
- Date: Wed, 26 Apr 2000 12:53:54 -0500
On Wed, 26 Apr 2000 09:54:13 Ben FrantzDale wrote:
>
> Fitts' law does little good when you have menus in a window rather than on
> the top of the screen. (You don't get the advantage of being able to slam
> your mouse to the top right in a window.) Also, help menus arn't used very
> often so if it takes more than a fraction of a second for the user to figure
> out why the help menu is hiding in the other corner then all advantages of
> Fitts' law are gone.
>
Fitts' Law isn't just about the edges of the screen. One of the factors in the
time to acquire is the size of the target.
>From http://ei.cs.vt.edu/~cs5724/g1/
---
Mathematically, Fitts' law is stated as follows:
MT = a + b log2(2A/W)
where
MT = movement time
a,b = regression coefficients
A = distance of movement from start to target center
W = width of the target
---
My conclusion was that the help menu should be left justified. Sorry if that
wasn't clear.
Greg Merchan
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