Classes beginner

[Felix]

Hi to everyone! I am starting with Class a few days, and there are many examples on the internet, but not practical examples (Maya), so this is my first class and of course I don't know what is wrong. I hope someone can give me a hand. Greetings!

import maya.cmds as cmds

import maya.mel as mel

class Control(object):

def __init__(self, name, shape, size):

self.name = name

self.shape = shape

self.size = size

def create_me(self):

if self.shape == 'box':

mel.eval( 'curve -d 1 -p -0.5 0.5 0.5 -p 0.5 0.5 0.5;' )

if self.shape == 'circle':

cmds.circle( radius=1 )

if self.shape == 'square':

mel.eval( 'curve -d 1 -p -0.5 0 -0.5 -p 0.5 0 -0.5 -p 0.5 0 0.5 -p -0.5 0 0.5 -p -0.5 0 -0.5' )

cmds.scale( self.size, self.size, self.size )

cmds.makeIdentity( apply=True, t=0, r=0, s=1 )

cmds.rename( self.name )

cmds.select( clear=True )

legControl = Control.create_me('L_leg1_control', 'box', 2)

[Justin Israel]

Hi

Everything looks fine except for how you call your class

legControl = Control.create_me('L_leg1_control', 'box', 2)

create_me() is called a "method". It is bound to an instance of your class, which means you need to first make an instance of your Control.

legControl = Control('L_leg1_control', 'box', 2)

Now you have constructed an instance, with your params that were passed to your __init__()

You can call create_me() to perform that extra set up.

legControl.create_me()

Note that your create_me method does not return anything. It only performs actions on your instance.

Justin

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[Felix]

Thanks Justin! for the reply, that help me alot. Saludos!

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[haggi...@gmail.com]

I'd say you can put everything into the __init__() method. If I see it correctly, then you do not return anything from create_me() and you do not give create_me() additional arguments. The class is (at the moment) useless without the create_me(). So you can call create_me() from the __init__() method what would create your geometry automatically if you call:

legControl = Control('L_leg1_control', 'box', 2)

Without the need to call another method.