I feel like an expression may not be the best spot for this functionality.
Wouldn't that imply that it would only get evaluated when the time changes or
the node is dirty? It seems to me what you want is a trigger that reacts to
actually changing your "fkik" setting.
A script job probably suits the situation better:
##
def toggleStuff():
val = cmds.getAttr('legCtrl1.fkik')
if val == 0:
cmds.setAttr('legCtrl1.tx', k=False)
elif val == 1:
cmds.setAttr('legCtrl1.tx', k=True)
jobId = cmds.scriptJob(attributeChange=['legCtrl1.fkik', toggleStuff])
##
This will immediately react to the change of your fkik attribute, and run a
python function that can check and change your attributes.
-- justin
On Nov 25, 2012, at 6:27 PM, Berg Jones wrote:
> I have one control that I'm using to control FK/IK on a leg. I dont want to
> have one for IK and one for FK because it gets confusing. Right now I have
> reverse foot roll and translate attributes that I want to hide when I'm in FK
> mode and vice versa.
>
> Heres the expression in question that will disable translateX but wont
> unhide switch into IK.
>
> Thanks!!!!
>
> import maya.cmds as cmds
> import maya.mel as mel
>
> mel.eval('proc hideStuff(){setAttr -k 0 "legCtrl1.tx";}')
> mel.eval('proc showStuff(){setAttr -k 1 "legCtrl1.tx";}')
>
> myExpr = '''
> if (legCtrl1.fkik == 0)
> {
> hideStuff();
> }
>
> else if (legCtrl1.fkik == 1)
> {
> showStuff();
> }
> '''
>
> cmds.expression(string=myExpr)
>
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