Shifter: leg_2jnt_01 locket attr issue

[miquelcampos]

Error: setAttr: The attribute ‘leg_C0_tws2_loc.scaleX’ is locked or connected and cannot be modified.

Reported in the forum: http://forum.mgear-framework.com/t/mgear-2-5-24-biped-template-erroring-when-building/117

[jdrese]

HI @miquelcampos
Is this still happenning? I wasn't able to reproduce it...

[miquelcampos]

@jdrese I didn't check this yet. I didn't find the issue in the past but it was reported by several users.

[SimonBenAnderson]

Hey guys,
I have been doing some testing of mGear from a rez package using Maya 2017 update 4 with mGear 3.0.3 and I have hit this bug straight out of the gate.

Looks as if the scale attr is trying to be set, even though the parameter is scaleConstrained 6 lines above the setAttr.
https://github.com/mgear-dev/shifter_classic_components/blob/master/scripts/mgear/shifter_classic_components/leg_2jnt_01/__init__.py#L602

I found if I removed the setAttr then it evaluates correctly, but I haven't spent enough time digging into your components to see if that setAttr is needed for some other reason.

Hope this helps

[zhollosy]

I have found that by setting an optionVar (related to pairBlend creation on constrained transform attributes) solves the problem:

pm.optionVar(iv=('animBlendingOpt', 1))

The related Preference setting is the Animation Blending. My Preferences was a bit trashed and no option was selected there. The Never blend... option (animBlendingOpt=0) prevents transforming constrained nodes and prevents setting its constrained parameters as the leg building code probably tries.