I think you're looking for:
if nuke.thisKnob() == 'A' and n['A'].value() != '-':
n[ 'B'].setValue(0)
...
hope that helps
2011/3/15 Howard Jones <[email protected]>
> Hi
>
> I'm wanting to write a 3-way radio button sort of thing.
>
> I have 3 pulldowns (with lots of options) and through knob changed I'd like
> to pick up which one has been touched and set the other 2 to a null setting
> ('-'),
> so that only one knob can be active at any time. No doubt very basic but
> I'm stuck (again).
>
> This test code will always (of course) set the others based on A unless I
> manually change A to '-' first then change the others. But I'd like which
> ever knob was changed to set the others.
> Is there some logic that can do this or am I into saving the previous
> states and comparing the difference. At first glance it looks like a 3-way
> switch but I'm not sure it is.
>
> n=nuke.selectedNode()
> if n['A'].value() != '-':
> n[ 'B'].setValue(0)
> n['C'].setValue(0)
> elif n['B'].value() != '-':
> n[ 'A'].setValue(0)
> n['C'].setValue(0)
> elif n['C'].value() != '-':
> n[ 'A'].setValue(0)
> n['B'].setValue(0)
>
>
>
> Any help greatly appreciated.
>
> Howard
>
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