Maya Script request - Select Hard Edges on current object

Pegbird · Dec 2017

Hello all,

I have been trying to find this through google and have had no luck in getting a working script.
I would like a script that does the following:

-Enters edge selection mode on the selected object (if it is not already active)
-Selects all the hard edges
-Any selection constraints are then reset back to normal

Would anyone happen to have something like this or be able to write it?
"Select using constraints" menu is very clunky, for such a simple action.

Thankyou in advance!

cromadbomber · Dec 2017

Python:
import maya.cmds as cmds
cmds.polySelectConstraint(m=3, t=0x8000, sm=1)
MEL:
polySelectConstraint -m 3 -t 0x8000 -sm 1;

I don't think you would need to reset constraints after this.

http://download.autodesk.com/global/docs/maya2014/en_US/CommandsPython/
CTRL+F "polySelectConstraint"

Axi5 · Dec 2017

The constraint stays active. You need to push the selection to a variable and then disable the constraint. Then just do select $var

TTools · Dec 2017

@Pegbird
This might be what you're looking for:
https://youtu.be/3hSMOWdhfcs

Pegbird · Dec 2017

@cromadbomber

That works except it then leaves me in selection constraints mode, forcing me to open up the menu and turn it off

Axi5 · Dec 2017

Here:

polySelectConstraint -m 3 -t 0x8000 -sm 1; // to get hard edges
$selection = `ls -sl`; // Save selection to tmp var
polySelectConstraint -sm 0; // Reset contraints
select $selection; // Push tmp var to selection

Pegbird · Dec 2017

@Axi5

Yes it works!

Thank you guys for taking the time to help me with this, I will be saving this into my scripts collection.
I have been trying out the "quad chamfer by smoothing groups" workflow within Maya and the tool works well, but using selection constraints several times a minute was a pain in the ass.

Cheers

Axi5 · Dec 2017

No Prob.

I have it on a shelf button. I have a double click variant which selects based on edge angle (85 to 95 degrees) rather than hard edges, this is handy for when Maya does an operation such as an extrude that creates all hard edges, even if the angle is <90 degrees.

jayantbhatt007 · Nov 2019

Hi, I hope it would be helpful for new artists. I figured it out and it's working with Maya 2017 also.

<span class="post-color-red">ConvertSelectionToEdges;</span><br><span class="post-color-red">polySelectConstraint -m 3 -t 0x8000 -sm 1; // to get hard edges</span><br><span class="post-color-red">resetPolySelectConstraint;</span>

You can use this command or here is the new link for Maya 2018 and 2019.

https://lesterbanks.com/2019/05/free-script-automatically-finds-hard-edges-in-maya/

Maya Script request - Select Hard Edges on current object

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