Astonishingly, I have found nothing on this topic at all on Google but maybe I’ve been searching for the wrong expressions?
Is there a way to set a center point for a knob widget? At the moment, when I define a knob that goes e.g. from -127 to 127, it will still go from -127 upwards clockwise. What I would like to achieve is that it goes from 0 to 127 clockwise and from 0 to -127 counter-clockwise, I.e. if the value is 0, no bar would be shown (or only a thin line).
@anon69363600 - did you ever find a solution for this?
Nope
I have the same problem, and willing to write a widget to do that I just miss the crucial info how to draw a dynamic bar that size is based on the itemValue
I look also for something like this I found this:
Perhaps somebody know where in the code to change something to do this.
Specifying minimum and maximum values, note that the value arc is drawn from the calculated zero >point. We have also made the arc appear thinner:
<knob-control
:min=“-12”
:max=“12”
:stroke-width=“8”
v-model=“semitone”
Changing size and colors:
Hi
I’m also looking for a (readonly) knob-widget for habpanel, which has zero as center and the bar from the center to the left for negativ and from center to the right for positiv values. Any ideas or some guidence to modify the standard knob-code?
Uli
(openHAB 4.1 on raspberrypi)
