Hi Nathan and all
Thanks for that - it got me some way except in my case for stereo. Is there a
way then to see if a knob has been split off?
The issue is working with your examples on nukepedia that if you pass a higher
number into animation(n) than exists it segment faults Nuke (now Bug 17174 -
nuke.animation causes segmentation fault )
So what I am trying to do is to find the number of fields so that I never go
over the amount.
Below is the code I am working on - which for a mono project will take all
selected keyframes in a selected node (haven't got round that bit yet) and
pastes these further down the line.
Ideally I would like to just get this from nuke.animations() but I cant see how
to use that information and no-one has come back so I'm stuck.
Anyway clunky code but gets someway towards pasting at position, but doesn't
paste into another curve. If I can get the exact number of fields (ie split or
not) then this will work on multiviews otherwise it can only work on mono.
# gets segmentation fault unless you can figure out how many curves there are
per knob
def pasteKeyframes():
sn=nuke.selectedNodes()
s=len(sn)
numViews=len(nuke.views())
if s :
'''get the array size of the knob so that animation(num) doesn't cause a
segmentation fault and check that
the knob supports an arraySize() - note a couple of things also slip
through'''
for n in sn :
firstKeyFound=0
offset=0
for k in n.knobs():
try:
ks=n[k].arraySize()
except:
ks=('wrong type')
num=0
i=0
if ks is not 'wrong type':
while num<ks:
''' get the number of keys on the curve'''
try:
na=n[k].animation(num)
ns=na.size()
'''step through the keys - check if they are selected the paste
the values from timebar onwards'''
while i < ns:
keySelected= (na.keys()[i].selected)
if keySelected:
firstKeyFound+=1
print k,ks,num
keyVals= (na.keys()[i].x, na.keys()[i].y)
if firstKeyFound==1:
offset=nuke.frame()-keyVals[0]
print ('keySelected: '+str(keySelected)+' keyvalues:
'+str(keyVals)+' firstKeyFound: '+str(firstKeyFound)+ ' offset: '+str(offset))
na.setKey(keyVals[0]+offset,keyVals[1])
else:
print ('key not selected')
i+=1
except AttributeError:
pass
num+=1
else:
nuke.message ('Please select a node as well as keyframes')
________________________________
From: Nathan Rusch <[email protected]>
>To: Howard Jones <[email protected]>; Nuke Python discussion
><[email protected]>
>Sent: Monday, 7 March 2011, 18:43
>Subject: Re: [Nuke-python] knobs fields
>
>
>>
>I think you’re after <knob>.arraySize()
>
>Keep in mind that this will only work with knobs inherited from Array_Knob.
>And as far as multiple views go, you just need to multiply the arraySize()
>value
>by the number of views.
>
>-Nathan
>
>
>From: Howard Jones
>Sent: Monday, March 07, 2011 10:38 AM
>To: Nuke Python discussion
>Subject: [Nuke-python] knobs fields
> Dear all
>
>
>
>Whats
>the best way to determine the amount of fields a knob will have.
>ie
>XY position knob has 2 fields but 4 in stereo (I think?)
>
>
>What
>I'd like to do is query the knob and get an integer for its
>fields.
>
>
>
>Any
>help much appreciated
>
>
>Howard
>
>
________________________________
>_______________________________________________
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>list
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>
>
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