Back in the
'80s, I had the good fortune to get to use a tablet
input device - [...]
Lots and lots of webcomic artists use them (though the pens
are not
usually wired anymore).
I'm not surprised. I know a fairly serious artist (whose "I scribbled
this out for something to keep my hands busy while listening to the
talk" drawings are substantially better than the best I can do) who
uses such a tablet.
There are even ones like the Wacom Cintiq, which is a
drawing tablet
with a high-color-fidelity screen built in; it's expensive, but if
you are a digital artist, it can be invaluable.
I should look into it. If the interfaces are documented enough, I
might even allow myself to splurge on such a thing.
Likewise, there are lots of MIDI input devices that
are just arrays
of buttons and dials, exclusively for the purpose of controlling
auxiliary functions of MIDI devices like rack-mounted synths or
effects devices.
Sure. I'm really more interested in the human-factors questions of
"what kinds of input tasks do this device's human-interface properties
optimize it for?". The obvious one is what it evolved for, namely
music, but there probably are other tasks it's better than a
traditional mouse-and-keyboard for....
I think the biggest problem with touchscreens when it
comes to CAD is
that fingers are so much bigger than pixels.
I actually think that's not so much the problem as it is that the
feedback is concealed by the input device. I've done pixel-precise
positioning with the touchpad on my laptop; it's a pain, but it's
doable - but only because the visual feedback is not under the finger.
Hence my suggestion about displacing the visual feedback so it's out
from under the fingertip - and also the insta-zoom
suggestion.
Also, I can't see holding my arm up to a
touchscreen for 6 to 8 hours
at a go. They'd get tired.
Me neither. I'd have the touchscreen basically flat. When I've spent
significant time using a touchscreen, I've held it basically at the
angle I'd hold a pad of paper for writing on.
It's possible that doing it right will mean splitting the output and
input, so that the input is flat but the output is vertical (as is
pretty much true of mice-and-keyboards). This could also fix the
"feedback is under the fingertip" issue. But it's not what most people
mean by a touchscreen.
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