[Maya-Python] Transform showing up as Shape, or vice versa

[Marcus Ottosson]

Hi all,

The various Maya constraints, like parentConstraint, is funny in that it shows up as a transform child in the Outliner, but as a shape in the channel box.

That's really useful in that (a) they appear in the channelbox when selecting the parent and (b) can be selected in the outliner and deleted like any other transform node.

I'd like to try and replicate that for some of my custom shape nodes (inheriting MPxLocatorNode). Any idea of where to start looking for something like that? I'd imagine it'd be a flag of sorts, but more likely it's out of reach for anything coming out of the API. :(

Best,

Marcus

[Tim Fowler]

The Channel Box specifically looks for Shapes and Constraints so you'd have to look at something derived from MPxConstraint.  I don't know of any flag that can override that behaviour.

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[Marcus Ottosson]

Ah that is interesting, thanks for the insight. Will have a look at whether I can inherit from MPxConstraint!

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[Marcus Ottosson]

Alas, MPxConstraints seems to be off-limits (a.k.a. not in the Python 2.0 API).. :(

[Tim Fowler]

So you can't use it because it's not in the Python 2.0 API?  

Lucky for me I have access to the Maya source :-)  so I honestly don't actually have to do much through the public API, but out of interest why can't you use it?

I'm not on the team that deals with the API much so I actually don't know the answer to this, hope this isn't too stupid a question!

-Tim

[Marcus Ottosson]

Lucky for me I have access to the Maya source :-)

Oh my, that’s effectively having access to the source code of my reality.

So you can’t use it because it’s not in the Python 2.0 API?

For this particular task, that’s right; if it isn’t in the Python 2.0 API, in Maya 2015-2018 then it may as well not exist. It’s for a third-party plug-in with no compiled parts.

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