On Sat, Sep 30, 2017, 8:22 AM X Y <[email protected]> wrote:
> A question here, quickly, on storing 'the return value' of a for loop:
> let's say that in my case, if I run a for loop on a collection of objects
> how would I go about storing all the curves generated in a list for future
> access - what is the proper way of doing that?
>
If you follow Andres' suggestion of saving the return value from your Maya
commands, then it should be easy to append them to a list:
curves = []
for ... :
a = mc.polyToCurve(form=0, degree=3)
curves.append(a)
Now you will have a curves list that contains lists of [transform, shape]
Note that if you call rename() on the curves as you do in your example, you
should be storing the result of the rename and not the original curve.
> On Tuesday, September 26, 2017 at 10:08:02 PM UTC+3, Andres Weber wrote:
>>
>> Something that will help you immensely is not to rely on Maya's current
>> selection and the fact having your code only work with the current
>> selection. That kind of information gets very hard to rely on as code gets
>> more complicated. So what you need to do is actually store the return
>> value from these Maya functions you're running into variables. You can
>> either read the help documentation entries for the commands you're running
>> and check what the return value is or if you want a more exploratory option
>> just store every function's return value in a variable.
>>
>> For example if you have a cube's edges selected and you run:
>>
>> a = mc.polyToCurve(form=0, degree=3)
>>
>> and then print a, you get the transform and the shape node that were
>> created in a list. For example my result was:
>> [# Result: [u'polyToCurve1', u'polyEdgeToCurve1']
>>
>> With that knowledge you can actually now create the wire deformer from
>> the curve that was generated and run it on the selected object within the
>> same for loop. The quicker you stop relying on Maya's selection and start
>> storing the results of functions to use later, the better your code will
>> get very quickly!
>>
>> On Monday, September 25, 2017 at 1:45:56 PM UTC-4, X Y wrote:
>>>
>>> Hey, hey!
>>>
>>> I'm having trouble with a little python script so maybe someone can help
>>> me get a grip with it.
>>>
>>> This is what I have so far:
>>>
>>> import maya.cmds as mc
>>>
>>> selection = mc.ls(orderedSelection=True)
>>>
>>> mc.select (cl=True)
>>>
>>> for i in selection:
>>> Name = str(i)
>>> print 'Object is: ' +Name
>>> mc.select(i+'.e[124]', add=True)
>>> mc.polySelectConstraint(propagate=4, m3a=20)
>>> mc.polyExtrudeEdge(ch=0, ltz=-0.005)
>>> mc.polyToCurve(form=0, degree=3)
>>> mc.rename (Name)
>>>
>>> Now I would like for the second part of my script to take the generated
>>> curves and *match *each of them to the mesh they were generated from
>>> and create a wire deformer with the generated curve as a driver, and the
>>> respective mesh as driven. It's just that I don't know how I should
>>> approach *list / name matching* these two selections.
>>>
>>> Hopefully I'll hear from someone.
>>>
>>
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