[linux-audio-dev] Knobs / widget design (radial movement)

[Thorsten Wilms]

On Mon, Jun 21, 2004 at 09:46:36AM +0200, Burkhard Woelfel wrote:
> 
> Radial movement on control elements often confuses me.
> 
> If there was a line drawn from the center of the knob to the mouse pointer, 
> maybe sporting arrows in the directions to move the mouse would make two 
> things obvious for me: 
> 
> - - to move the mouse radially
> - - that there's different scaling available
> 
> The display of that "helper line" could be configurable and even defaulted not 
> to be used. Absolute values could also be displayed next to the mouse 
> pointer.
> 
> The scaling issue may be obvious for most people, but it wasn't for me until 
> this thread. I just hated radial knobs.

Well, the scaling issue was not obvious to me, I needed to 
read about it somewhere, but afterwards made extensive 
use of this feature in Cubase.

I'm going to update the knobs with graphics like you 
described (had the idea from the beginning on, but had 
concerns about flickering / too much action on the 
screen).

But I think fan-sliders would be the better solution in 
most cases.


---
Thorsten Wilms