If you want the center of a selection of nodes you could do something like:
sn = nuke.selectedNodes()
xp = [n.xpos() for n in sn]
yp = [n.ypos() for n in sn]
wa = sum([n.screenWidth() for n in sn])/len(xp) # node width average
ha = sum([n.screenHeight() for n in sn])/len(xp) # node height average
cx = int(min(xp)+((max(xp)-min(xp))*0.5)-(wa/2)) # selected x center
cy = int(min(yp)+((max(yp)-min(yp))*0.5)-(ha/2)) # selected y center
# position offset
xo = 0
yo = 100
n = nuke.nodes.Blur()
n.setXpos(cx+xo)
n.setYpos(cy+yo)
On Thu, Mar 16, 2017 at 6:48 PM, Rich Bobo <richb...@mac.com> wrote:
> Darren,
>
> I see you’ve edited the function to only return only the X position value…
> I’m not sure why you are doing that and I don’t have time to look at the
> rest of the code at the moment, but if you use the function “as is", it
> works.
>
> If you only want one of the values, bind the resulting list to a
> variable...
>
> centerXYpos = nodeList_center()
>
> …and get the x or y value you want with its list index number...
>
> centerXYpos[0] # X value
> centerXYpos[1] # Y value
>
> Does the make sense?
>
> Rich
>
>
> On Mar 16, 2017, at 5:24 PM, Darren Coombes <darren.coom...@me.com> wrote:
>
> Thanks Rich.
> I can’t seem to get it to work.
>
> Here’s the full script.. Feel free to use it if you can get the centre
> node part working.
>
>
> # v2.3 march 2017
>
> import nuke
> import os
>
>
> n=nuke.selectedNodes()
>
> # delete all Viewer Nodes (so they dont get included in groups later on)
> def deleteViewer():
> for n in nuke.allNodes('Viewer'):
> nuke.delete(n)
>
>
> # arrange all nodes neatly using autoplace command
> def cleanUp():
> nuke.selectAll()
> for n in nuke.selectedNodes():
> nuke.autoplace(n)
>
>
>
> # looks for all read nodes, then creates node labelthumb under each read
> def addlt():
> # adds a certain node under each "Read" Node = Filters Node Class
> "Read"
> sn = nuke.selectedNodes("Read")
>
> if sn == []:
> sn = nuke.allNodes("Read")
> if sn == []:
> nuke.message("No Read nodes found")
> else:
> for n in sn:
> n.knob("selected").setValue(True)
> nuke.createNode("LabelThumb", "", False)
>
>
> #selects all LabelThumb Nodes
> def allLT():
> for n in nuke.allNodes('Group'):
> n['selected'].setValue(True)
>
>
>
>
> # find x center point for next node creation
> def nodeList_center(nodeList=None):
> '''Node placement function, from Drew Loveridge...'''
> if nodeList == None:
> nodeList=nuke.selectedNodes()
> nNodes = len(nodeList)
> x=0
> for n in nodeList:
> x += n.xpos()
> try:
> return [x/nNodes]
> except ZeroDivisionError:
> return [0]
> print nodeList_center()
> nodeList_center()
>
>
>
> nlist = nodeList_center()
> print nlist
>
> # create contactsheet node with a gap of 20
> def createCS():
> cs = nuke.createNode('ContactSheet')
> cs['gap'].setValue(20)
> cs['center'].setValue(True)
> cs['label'].setValue("inputs: [value inputs]")
> # cs.knob('xpos').setValue(nlist)
> cs.setXpos(nlist[0])
>
>
> ## creates a group of all selected nodes..
> #selects all LabelThumb Nodes
> def mkGroup():
> nuke.selectAll()
> nuke.collapseToGroup()
>
> def addKnobs():
> g = nuke.selectedNode()
> k = nuke.Enumeration_Knob("listfiles", "files", ['red', 'green',
> 'blue'])
> g.addKnob(k)
>
>
>
>
>
>
> def addLabelThumb():
> deleteViewer()
> cleanUp()
> addlt()
> allLT()
> nodeList_center()
> createCS()
> #mkGroup()
>
>
>
>
>
>
>
>
> *Check out some of my work…*
> *www.vimeo.com/darrencoombes/reel2017*
> <http://www.vimeo.com/darrencoombes/reel2017>
>
> *Mob: **+61 418 631 079* <+61%20418%20631%20079>
> *IMDB: www.imdb.com/name/nm3719099/ <http://www.imdb.com/name/nm3719099/>*
> *Instagram: @7secondstoblack*
> *Instagram: @durwood0781*
> *Skype: darren.coombes81*
> *Twitter: @durwood81*
>
> On 17 Mar 2017, at 7:51 am, Rich Bobo <richb...@mac.com> wrote:
>
> cs.setXYpos(center[0], center[1]+300)
>
>
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>
>
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