Image + touch event handling -> image rotation = knob ?
Maybe. I'm still coming up the hill on the learning
curve... lol -- so I'm just fishing for a way to do it
at the moment.
In other environments, another approach is to make
a strip containing images at the various required
rotations -- then incrementally move through that
image strip in relation to the horizontal motion of
the user input. [Sample image, below at end.]
There's a great little free tool, KnobMan, that's
designed to make image strips for that approach:
Software - KnobMan ver.1.44 | g200kg Music & Software
-- which I've used with products like SynthMaker.
One of the assets of that approach is it gives
you much better control over lighting and shadow
than you could get by rotating a single fixed
image.
Best,
David
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David Sosnowski
The Music of David Sosnowski