linuxaudio.org

On Tue, Sep 7, 2010 at 8:44 PM, Gordon JC Pearce  wrote:

quoted text
> On Tue, 2010-09-07 at 20:24 +0100, Chris Cannam wrote:

>> test some rotary controllers to remind myself which behaviour my hand

>> expects, and it turns out it's up = clockwise.

>

> That's a funny thing, because I've been looking at some radio equipment

> with a big rotary knob to scroll through menu options.  Turning the knob

> clockwise moves the pointer up, and turning it anti-clockwise moves it

> down - utterly unintuitive!  Perhaps it's because the scrolly knob is to

> the right of the display, so the edge of the knob that moves up should

> "follow" the cursor?

It may be that.  I really couldn't work out in my head which direction

ought to be more intuitive -- and I was surprised by that.
In practise I find I clearly prefer mouse up = clockwise, which is the

relation that you just called unintuitive (and I think I would agree

with you -- there's no very good reason to suppose that preference in

mouse movement would be the same as preference in how a vertical

selection responds to rotary control, but it's interesting to find

they actually do differ).  My preference might be just familiarity, or

it might be my vision in the absence of any other cue aligning the

movement of the mouse with that of the left edge of the knob.
Chris

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