Node path connected to output Plug

[Janos Hunyadi]

Hi guys!

I'm trying to find a simple way to find a nodes DagPath connected from a mesh ("worldMesh[0]") output plug.

This is a command so it won't be inside a compute.

Here's some python prototype code (not working):

import maya.OpenMaya as api 

sel = api.MSelectionList() 

sel.add( 'pPlaneShape1' ) 

obj = api.MDagPath() 

sel.getDagPath(0, obj ) 

dgNode = api.MFnDagNode(obj)

aliasList = api.MPlug()

aliasList = dgNode.findPlug( "worldMesh" )

worldP = api.MPlug()

worldP = aliasList[0]

# The plug is found!

print worldP.name()

# Ok lets convert it to a dagpath!

ob = api.MObject()

ob = worldP.asMObject()

mfDgN = api.MFnDagNode(worldP.node())

pa = api.MDagPath()

mfDgN.getPath(pa)

print pa.fullPathName()

# Nope!

Any ideas? :D

[Justin Israel]

Are you trying to determine the dagpath of all objects connected to the worldMesh[0] output plug?

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[Janos Hunyadi]

Basically yes. I only need the first connected (logical index) one.

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[Justin Israel]

Does this work for you?

# Via the API

import maya.OpenMaya as api 

sel = api.MSelectionList() 
sel.add( 'pPlaneShape1' ) 
obj = api.MDagPath() 
sel.getDagPath(0

, obj ) 

dgNode = api.MFnDagNode(obj)
aliasList = dgNode.findPlug( "worldMesh" )
worldP = aliasList[0]
print worldP.name()

mfDgN = api.MFnDagNode(worldP.node())
print mfDgN.fullPathName()

destPlugs = api.MPlugArray()
worldP.connectedTo(destPlugs, False, True)
destPlug = destPlugs[0]
mfDgN.setObject(destPlug.node())
print mfDgN.fullPathName()

# Via cmds
import maya.cmds as cmds
cmds.ls(cmds.listConnections("pPlaneShape1.worldMesh[0]", sh=True), l=True)

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[Janos Hunyadi]

Works flawlessly! Thank you! :)

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[Justin Israel]

Welcome!

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