> Sliders was the direction I was leaning toward but I still have
> problems with the voltages jumping to a new value when I first click
> on the slider if I'm not real careful with the mouse position. I'm
> aiming for that feel you get turning a pot to fine tune something.
Interesting. If you are going with a screen control and mouse, you can
take the slider into the control editor, grow the thumb horizontally,
shrink it vertically, and then shrink the housing, the background behind
the thumb. This tinkering will make it harder for the slide to jump
around when initially clicked on. You will need to hit the thumb, but
that should have very little bump.
Another approach is to use a real pot or HW knob. A couple years ago I
was play
ing with iMovie and purchased a USB knob. By setting the
increment, min and max for a numeric, and configuring the knob to
produce up and down arrow keys, you can tab to the appropriate numeric,
then turn the knob. It is easy to set the knob to set the rate of the
keys sent, so you can also use the spring loaded lower ring to do a
constant velocity increment, turn the ring farther, and increment
faster, release and stop.
These knobs are not very expensive and can be found on the web. Mine
was from a company called Contour, not sure what their name is now.
A similar approach would be to use a USB joystick. There are some
joystick VIs on devzone I think.
Greg McKaskle
