Mel commands under Python or vice versa

[DGFA DAG's GRAPHIC & FOTO ART]

Hi,

I struggle with a custom menu. I will to have my own menu with all the stuff I have in several shelfs. But when I codethe menu in Mel I don’t know how to set the command attribute for executing a Mel  command. 

For example:

Mel

menuItem -p $mainWindow -l "Set Project" -c "SetProject"

menuItem -p $mainWindow -l "Create Material" -c "source mat.py"

The first line works fine the second throws an error "file mat.py not found"

How can I solve this?

Thanks,

Dag

[vince touache]

I don't have a maya available to test it currently, but did you try to run your command via the "python" keyword in MEL?

Calling, in MEL:

python "import mat;mat.do_something()" 

should be understood correctly by your MEL call, I assume

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[DGFA DAG's GRAPHIC & FOTO ART]

When I do this I get an error "Error line 1.35 Syntax error"

When I run his line as standalone python("import mat"; mat.run()"

this is working but I need a command for the menuItem that runs Mel commands or python command/script.

In Maya documentation there are examples for menu but no one have the flag -c included.

[DGFA DAG's GRAPHIC & FOTO ART]

In Python it works with Mel commands when I do this

pm.menuItem(label=‘my menu’, command="mel.eval(‘SetProject’)")

[Kenneth Ibrahim]

Not sure if this is applicable in this case, but PyMEL has this great MEL access mechanism that essentially turns any MEL command into a Python function complete with arguments:

pm.mel.melCommandName(arg1, arg2, argN)

Here's the doc: https://help.autodesk.com/cloudhelp/2017/ENU/Maya-Tech-Docs/PyMel/generated/classes/pymel.core.language/pymel.core.language.Mel.html

To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/de96d854-40d0-48e2-b077-d91609f0cc38n%40googlegroups.com.

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[DGFA DAG's GRAPHIC & FOTO ART]

Hi,

thank you!

I found a undocumented flag for menuItem in mel -sourceType "python".

This works as well in python

pm.menuItem(label='Match Rotation', sourceType='mel', command='MatchRotation')
pm.menuItem(optionBox=True, visible=False, sourceType='mel', command='MatchRotationOptions')

[Justin Israel]

DGFA DAG's GRAPHIC & FOTO ART schrieb am Samstag, 27. August 2022 um 08:15:14 UTC+2:

When I do this I get an error "Error line 1.35 Syntax error"

When I run his line as standalone python("import mat"; mat.run()"

this is working but I need a command for the menuItem that runs Mel commands or python command/script.

In Maya documentation there are examples for menu but no one have the flag -c included.

There are examples of using the python() MEL function in the MEL docs:
https://help.autodesk.com/cloudhelp/2022/ENU/Maya-Tech-Docs/Commands/python.html

However, if you are coding your menu in MEL and you want to have your menuItem use a python syntax callback, then you should check the documentation for menuItem:
https://help.autodesk.com/cloudhelp/2022/ENU/Maya-Tech-Docs/Commands/menuItem.html

You will notice that there is a   -sourceType(-stp)   flag that allows you to tell the menu to use python for the callback syntax:

menuItem -p $mainWindow -l "Create Material" -sourceType "python" -c "import mat; mat.do_something()"

To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/CAP_aC5avGYkS0B4DUvy9T_fma0MvYmKFWEN7fkTK3q-D7Hn-yQ%40mail.gmail.com.