Unrelated question, but how do you end up with an image with a variable
resolution?
I've never seen that before. Is it for a specific purpose?
On Thu, May 8, 2014 at 4:43 PM, Dan Rosen <danrosenro...@yahoo.com> wrote:
> Try this threading technique. there's a sleep in there to give time for
> Nuke to evaluate.
>
> import threading
> import time
>
> def doIT():
>
> nukeNode = nuke.selectedNode()
>
> firstFrame = int(nuke.Root()['first_frame'].getValue())
> lastFrame = int(nuke.Root()['last_frame'].getValue())
> totalFrames = lastFrame - firstFrame
> print( firstFrame, lastFrame )
>
> #toggle frame to initiate getting the correct value
> current_frame = nuke.frame()
> nuke.frame( current_frame -1 )
> nuke.frame( current_frame )
>
> width = nukeNode.width()
> height = nukeNode.height()
>
> maxWidth = 0
> maxHeight = 0
>
> task = nuke.ProgressTask('Getting width and height in range ' +
> str(firstFrame) + ' ' + str(lastFrame))
>
> progIncr = 100.0 / totalFrames
>
> for frame in range(firstFrame, lastFrame+1):
> if task.isCancelled():
> nuke.executeInMainThread(nuke.message, args=('Aborted',))
> return
>
> nuke.frame( frame )
> #Giving time for Nuke to evaluate
> time.sleep(.1)
>
> width = nukeNode.width()
> height = nukeNode.height()
>
> task.setProgress(int(frame * progIncr))
> task.setMessage( str(frame) + ' ' + str(width) + ' ' +
> str(height) )
>
> if width > maxWidth:
> maxWidth = width
> if height > maxHeight:
> maxHeight = height
>
> print (frame, width, height)
>
> print( maxWidth, maxHeight )
> nuke.frame( current_frame )
>
> threading.Thread(target=doIT).start()
>
>
>
> On Thu, May 8, 2014 at 12:22 PM, Haarm-Pieter Duiker <
> l...@duikerresearch.com> wrote:
>
>> Hi,
>>
>> Simple question. Is there a way to query the width and height of a node
>> at different times?
>>
>> Here's the context.
>> I'm working with data sets that include image sequences that vary
>> resolution from frame to frame. I'd like to find the max width and height
>> for a given image in a given frame range. I wrote the following code to
>> test things out.
>>
>> nukeNode = nuke.selectedNode()
>>
>>
>> firstFrame = int(nuke.Root()['first_frame'].getValue())
>>
>> lastFrame = int(nuke.Root()['last_frame'].getValue())
>>
>> print( firstFrame, lastFrame )
>>
>>
>> maxWidth = 0
>>
>> maxHeight = 0
>>
>> for frame in range(firstFrame, lastFrame):
>>
>> nuke.frame( frame )
>>
>> width = nukeNode.width()
>>
>> height = nukeNode.height()
>>
>> print( frame, width, height )
>>
>> if width > maxWidth:
>>
>> maxWidth = width
>>
>> if height > maxHeight:
>>
>> maxHeight = height
>>
>>
>> print( maxWidth, maxHeight )
>>
>>
>> The width and height values don't update to reflect the value for the
>> current frame. This seems to parallel the functionality of the Knob
>> getValue vs. getValueAt functions. Since width and height aren't knobs,
>> those functions don't help though.
>>
>>
>> Is there a way to query the width and height of a node at different
>> times, like the Knob getValueAt method?
>>
>>
>> HP
>>
>>
>>
>>
>>
>>
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>>
>>
>
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>
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