MEL for delete by history of an object.

# 1 10-08-2013 , 05:24 AM

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Join Date: Aug 2013

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hey there.
I wanted to know if it is possible to write a MEL or Python script, to delete any selected objects history(and not the script editors history), and freeze tranformation.

This will help me when i make GUI controllers and i do not have to select each object and go into the menues and do a lengthy set of procedure each and every time.

If anyone could help, please do.

Aaron user added image

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# 2 10-08-2013 , 10:09 AM

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If you turn on History>Echo All Commands in the Script Editor you'll see the MEL commands for those actions whenever you run them.

Code:

DeleteHistory;
CenterPivot;

If you want to do this for the objects you have selected, it's easy.

Code:

//Store list of the selected objects in a string array
string $selection[] = `ls -sl`;


//For every item in that list...
for($obj in $selection){

//Delete history and center pivot
DeleteHistory;
CenterPivot;


}

- Genny
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# 3 13-08-2013 , 12:11 PM

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Thanks!

Thank you so much!
It worked!

Thanks,
Aaron. user added image

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# 4 15-10-2014 , 10:38 PM

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Bumping an old thread here, I'm wondering if there's a way to delete an objects history in Python.

Cheers, the Yeti.

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# 5 16-10-2014 , 01:32 AM

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Yep! Using the "delete" command. This code deletes the construction history on all selected objects.

Code:

import maya.cmds as mc

selection = mc.ls(sl = 1)
for obj in selection:
	mc.delete(obj , ch = 1)

I just realized in the previous MEL I posted that I added center pivot instead of freeze transformations lol. I just don't know anymore, smh.

- Genny
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::|| My Maya FAQ ||::

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# 6 16-10-2014 , 02:18 AM

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Thanks Gen, I found a way to do it using the command (constructionHistory = False) at the creation of the object but I don't know if this is a good way to do it.

Cheers, the Yeti.

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# 7 16-10-2014 , 12:58 PM

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Posts: 3,374

You probably want to keep construction history on, as it will allow you to modify various operations after the fact. I would then delete construction history at certain points in the process once you're sure you don't want to dig into the history.

-stwert

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# 8 16-10-2014 , 08:50 PM

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Thanks for that tip Stwert, it was okay for what I was doing (creating a control for a rig) but I thought it might not be best practice to do it for other things.

Cheers, the Yeti.

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MEL for delete by history of an object.

Thanks!

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