[linux-audio-dev] mouse wheel behavior and RFC: human interface guidelines

[Fons Adriaensen]

On Sat, Aug 21, 2004 at 06:35:44PM +0200, Melanie wrote:

> it's backwards in a "numerical" sense, in that the numbers increase with 
> one slider type, but decrease with another, using the same command.
> 
> However, UI designers don't think in numbers, but associations.
> 
> Left is generally associated with up, right with down, as we read left to 
> right, top to bottom. Therefore, up MUST map to left, down MUST map to 
> right, otherwise, non-mathematically minded people get uttely confused.


OK, if things 'increase' from L to R and from top to bottom,
then a vertical gain slider should have the 'off' position at
the top. For a slider controlling a frequency, the lowest 
one should be at the top.

I suspect most people would find that counterintuitive,
regardless of reading directions.

-- 
FA