Continuous knobs

Community Usage questions
1

I need to control color hue in my application and would like to implement a rotary widget that can spin continuously and report degrees. I feel certain this must be a common use case but I’m not seeing how to do this in either the documentation or here on the forum. Thanks in advance for any advice.

2

You could do something like that with a knob widget with

  • angle to 360
  • snap to true
  • range to {min: 0, max: 360}
3

Works like a charm. Knew it would be straightforward but hadn’t understood that snap applied here. Thanks @jean-emmanuel.

4

@erictheise may be useful to share your piece of code with others to help the community.
Cheers

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5

If anyone arrives here looking for a current (v.1.9.11) way to have a continuous knob, the solution is to use "mode": "snap". Been away from my project for a year and it took me a while to figure out this updated solution.

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6

@jean-emmanuel, it seems that since v1.17.0 I'm no longer able to rotate CCW past 0 or CW past 360°. The session file at GitHub issue #793 about default values should display this behavior, too.

I've reinstalled v1.16.6 and my knobs' previous & expected behavior has been restored. I noted in v1.17.0, and in the docs and release notes, that there's a circular mode but if that's what I should be using it wasn't clear what parameters I needed.

7

I'm afraid I had to break that to fix another problem with knobs (knob: `sensitivity` and ctrl+drag preserve `circular` mode behavior · jean-emmanuel/open-stage-control@fb621a6 · GitHub), but in next version the old behavior will be available again with an extra mode called snap-alt. Alternatively you could use the encoder widget that exposes its angle via scripting (using locals.angle).

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