Hey Erwan,
thanks for your reply! I figured out along the way that
I actually forgot to check for the changed knob... doh!
The code is only
a stripped down version of a bigger script. I must have deleted it
somehow...
Thanks again.
Carl
Am 2014-03-11 18:31, schrieb Erwan
Leroy:
> Hey Carl,
> What exactly are you trying to do?
> What you
are doing right now is trying to set False on both a and b knobs, then
set True to the knob you're currently changing (could be any knob,
including trying to move your knob around in the GUI). That is where
your problem is coming from, most of these other knobs aren't expecting
a Bool.
>
> if you're just trying to make 2 checkboxes where you can
only pick one, I would suggest using a condition.
> Something like that
(There is probably an easier way):
>
> n = nuke.createNode('NoOp')
>
> n.addKnob(nuke.Boolean_Knob('a', ' '))
>
>
n.addKnob(nuke.Boolean_Knob('b', ' '))
>
>
n['knobChanged'].setValue('''
>
> n = nuke.thisNode()
>
> k =
nuke.thisKnob()
>
> if k == n['a']:
>
> n['b'].setValue(False)
>
>
k.setValue(True)
>
> elif k == n['b']:
>
> n['a'].setValue(False)
>
> k.setValue(True)
>
> ''')
>
> or to keep with mostly your code:
>
> ###### code
>
> n = nuke.createNode('NoOp')
>
>
n.addKnob(nuke.Boolean_Knob('a', ' '))
>
>
n.addKnob(nuke.Boolean_Knob('b', ' '))
>
>
n['knobChanged'].setValue('''
>
> print
>
> n = nuke.thisNode()
>
> k = nuke.thisKnob()
>
> for cb in [n['a'],n['b']]:
>
>
cb.setValue(False)
>
> if k in [n['a'],n['b']]: k.setValue(True)
>
>
print cb.value()
>
> ''')
>
> ###### /code
>
> Notice that both
knobs turn off anytime you touch anything in the knob though. Depending
on what you're making it might or might not be a good thing.
>
> Hope
that helps
>
> Cheers
>
> Erwan
>
> On Tue, Mar 11, 2014 at 4:26
AM, Carl Schröter <ad...@l-rac.de> wrote:
>
>> Hi all,
>>
>> I came
across a strange error message while trying to set values on checkboxes
via knobChanged.
>> The following example works but throws this error:
"TypeError: setValue() argument 1 must be string or None, not bool"
>>
Any idea why a boolean knob is not taking a bool value ? When setting a
bool I also can't deselect or move the node...
>> Supplying a str
prevents the error message but breaks the code.
>>
>> ###### code
>> n
= nuke.createNode('NoOp')
>> n.addKnob(nuke.Boolean_Knob('a', ' '))
>>
n.addKnob(nuke.Boolean_Knob('b', ' '))
>>
>>
n['knobChanged'].setValue('''
>> print
>> n = nuke.thisNode()
>> k =
nuke.thisKnob()
>>
>> for cb in [n['a'],n['b']]:
>>
cb.setValue(False)
>> k.setValue(True)
>> print cb.value()
>> ''')
>>
###### /code
>>
>> Best,
>> Carl
>>
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