great, thanks for all the info. I'll have to give this stuff a good read.
-Adam
On 04/23/2012 12:16 PM, Ivan Busquets wrote:
What Hugo said.
You can find more info here:
http://docs.python.org/library/stdtypes.html#string-formatting
As for the "16" in the int() command (or "0" in the example I sent),
that is the base for the string-to-integer conversion. If the argument
is not given, it uses a base of 10 by default. You can pass it a value
of 16 so it will interpret hex characters correctly, or 0 to let
python guess the best base to use for the given string. In this case,
this works because the string will always start with '0x', which
Python will interpret as an hexadecimal.
More info:
http://docs.python.org/library/functions.html#int
Hope that clarifies it a bit.
Cheers,
Ivan
On Mon, Apr 23, 2012 at 12:12 PM, Hugo Léveillé <[email protected]
<mailto:[email protected]>> wrote:
Its called string formatting
ex:
age = '16'
print "Hi, I am " + age + " years old"
is the same as:
print "Hi, I am %s years old" % age
It has the advantage of making clearer string writing as well as
converting int and floats to string as well
ex:
"I am %s years old and I have %s dollars" % (10 , 3.5)
On Mon, Apr 23, 2012, at 12:00, Adam Hazard wrote:
ok, cool, I think I understand it better now. Thanks, guys. Also,
if you don't mind, another question, what exactly is the '%'
doing in this code. And I have used 'int' before, and seen the
'16' posted around, what exactly are those doing, I am guessing
that is what converts the value from string to integer?
-Adam
On 04/23/2012 10:48 AM, Nathan Rusch wrote:
The problem isn't hex vs. int; the value you're getting back
from the Python knob is identical to the hex value returned by
the nuke.tcl call. The issue you're running into is that the
nuke.tcl call is returning the hex value as a string, so you
need to cast it to a numeric type before you can actually use it.
n = nuke.selectedNode()
tile_color = int(nuke.tcl('value [topnode %s].tile_color' %
n.name <http://n.name>()), 16)
-Nathan
From: Adam Hazard <mailto:[email protected]>
Sent: Monday, April 23, 2012 10:12 AM
To: Nuke user discussion
<mailto:[email protected]>
Subject: Re: [Nuke-users] python [topnode] equivalent
Thanks Ivan.
This was pretty much exactly what I was looking for. However I
had to change it a little bit because this was returning the
tile color hex value, if I understand all this correctly, and my
function needs just the integer value. As I can't assign or set
a tile_color using hex, or I haven't been able to figure it out.
Anyways, for whatever reason this does the trick, kinda mixing
your code with what I had before. I am still not very sure why
the tile_color has 2 different value formats.
n = nuke.selectedNode()
topnode_name = nuke.tcl("full_name [topnode %s]" % n.name
<http://n.name>())
topnode = nuke.toNode(topnode_name)
tile_col = topnode['tile_color'].value()
Thanks again and much appreciated.
Adam
On 04/20/2012 06:47 PM, Ivan Busquets wrote: Or if you just want
the tile_color of the top node, you could of course do:
n = nuke.selectedNode()
tile_color = nuke.tcl("value [topnode %s].tile_color" % n.name
<http://n.name>())
Hope that helps
On Fri, Apr 20, 2012 at 6:41 PM, Ivan Busquets
<[email protected] <mailto:[email protected]>> wrote:
You can use nuke.tcl() within python to execute a tcl command.
So, in your case, something like this should work:
n = nuke.selectedNode()
topnode_name = nuke.tcl("full_name [topnode %s]" % n.name
<http://n.name>())
topnode = nuke.toNode(topnode_name)
On Fri, Apr 20, 2012 at 6:30 PM, Adam Hazard
<[email protected] <mailto:[email protected]>> wrote:
Hopefully a quick question,
If I currently have a node selected somewhere in a tree, and I
want to access the topnodes tile color using python, how would I
do so? Using [[topnode].tile_color] doesn't seem to work as it
is tcl? Looking around it seems you need to check dependecies of
all the nodes or something, but I haven't been able to get
anything to work. Is there no way to convert the tcl function
to work in python?
Thanks in advance for any help,
Adam
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TD Compositing, Vision Globale
[email protected] <mailto:[email protected]>
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