Find object with no UV coordinates

[Anonymous]

I'm writing a Python script to determine if an object has UV coordinates or not. - by counting the UVshells.

This should be straight forward. 

import maya.cmds as cmds

cmds.cube( n ='cubey' )

# number of UV shells
UV = cmds.polyEvaluate( uvShell=True )
print UV

Only I get the error:

TypeError: file <maya console> line 6: Invalid flag 'uvShell' #

So I'm a little confused since the above is used as an example in the docs. 😲

[mspeer]

Hi!

What Maya version are you using?

Here it works, except for your cube creation which should be

cmds.polyCube( n ='cubey' )

[Anonymous]

Maya 2017

[mspeer · Accepted solution]

Hi!

Please check the documentation, Maya 2017 does not support this flag,

it was added in Maya 2018.

So you need to use Maya 2018 or any other script.

I recommend to try

cmds.polyEvaluate( uvcoord=True )

If the result is "0", there are no UV coordinates (for the current UV Set) and this also works in Maya 2017

[olarn]

Would counting the number of UV points instead works in your case?

import pymel.core as pm
obj = pm.PyNode("pTorus1").getShape()
has_any_uv_current_set = obj.numUVs() > 0
print(has_any_uv_current_set)

[Anonymous]

That may wee work, the minor adjustment in the code above works for me 🙂