date:20170819

Re: [Maya-Python] Re: some Mel toughts

2017-08-19 Thread yury nedelin

I am curious , why not python ?
Yury

On Sat, Aug 19, 2017 at 2:46 PM, Cedric Bazillou 
wrote:

> Like the other people said its a scripting language, and your variable are
> strongly typed ( so what is the point of whining :its normal to be confused
> when to start using something new...)
> most of what you said for string manipulation has an equivalent in mel (
> just need to learn how the docs are organized )
>
> SO yeah its more difficult but you dont need OOp everywhere certainly not
> and at a scripting level ( automation and normal user executing code they
> drag from the script editor...).
>
> A lot of people tend to be lure into aesthetics part of code when its the
> functionality and robustness which matters ( code maintenance and upgrade
> is another beast ).
> When you will be a bit more c++ savy you can create your how nodes a
> command to do the actual work i you dont like mel syntax (for other people
> we work together at ilion btw )?
>
> Le vendredi 18 août 2017 17:08:56 UTC-5, Rudi Hammad a écrit :
>>
>> Hello,
>> I recently started a job in a studio that relies only on Mel, where
>> python is officially forbidden to use. I never used mel before. Since I am
>> familiar with C++ it was easy to learn, but still, I would like to share
>> some thought and try to explain
>> why I don´t like it. I only know 3 languages, python, c++ and mel now, so
>> maybe you can shed some light and tell me if my thoughts are wrong or if
>> you agree:
>>
>> 1-Why do you need to declare the data types in a high level scripting
>> languages? Aren´t data types declaration supposed to help manage memory to
>> optimize your programs? Since mel is high level, do you really need
>> declaring data types?
>>
>> 2-the dollar sign before each variable. why? it feels that mel is not
>> smart enough to understand . It needs not only the declaration data type,
>> but also a $ to understand that you are creating a variable.
>>
>> 3-working with strings is excruciating in Mel. In python, since
>> everything is an object you can access all the string methods.
>> .capitalize(), .split() etc... To do simple .split in mel, you have to
>> create a empty array first, then use a proc like tokenize, give it the name
>> to split, where to do the split, and cast it in the empty array, and
>> finally, retrieve the index you need in that array in python you simply
>> do somehting like myName = l_myControl_CTR.split("_CTR")[0]...
>>
>> 4- quote marks to have a variable take a return. so string $myArray[] =
>> `ls -sl`;
>>
>> 5- no default values on arguments?! you can' t do something like proc
>> myFunc(string $myName="foo", int $default=1)
>>
>> (6. Also of course not having dictionaries , no external library, no OOP,
>> no access to the API are also big things to consider)
>>
>>
>> My point is not to criticize anyone using Mel. This list is just to help
>> me understand a bit better how scripting languages compare to each other.
>> When you work in a studio with a huge Mel legacy you have to get along
>> with it. And I do, I already developed many thing is mel. My only problem
>> is that I am not allowed to use python, but it is what it is.
>>
>> Anyway, to sum up, for the reasons I exposed above, I find Mel not smart,
>> long, ugly, very painful when it comes to strings, and very limited.
>>
>> So as I said, my point is not to criticize Mel, but try to understand it
>> a little better. Do you agree with anything I said, or am I just crazy
>>
>> Thanks,
>> R
>>
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Re: [Maya-Python] Python Noob question

2017-08-19 Thread Johnathan Scoon

Thanks Justin, you're a rock star!

On Saturday, 19 August 2017 18:10:40 UTC-4, Justin Israel wrote:
>
>
>
> On Sun, Aug 20, 2017 at 1:51 AM Johnathan Scoon  > wrote:
>
>> Hey thanks haggi, that definitely works. I'm still curious if there is a 
>> way to make a list of ascending objects into a range? Or do you think this 
>> would not ever be necessary?
>>
>
> It could be neccessary given the circumstances. The following creates an 
> empty list and then performs a for-loop to append formatted strings:
>
> objs = []for i in xrange(1, 10):
> objs.append('BLOCK{}'.format(i))
>
> 
>
> Python provides a feature called list comprehension, which can perform the 
> equivalent:
>
> objs = ['BLOCK{}'.format(i) for i in xrange(1, 10)]
>
> 
>
>
>
>>
>> On Saturday, 19 August 2017 09:43:26 UTC-4, haggi wrote:
>>>
>>> At a first glance, you do not need the BlockList at all because you so 
>>> not use the contents. You only use it to get a number of elements to 
>>> iterate over. You would get the same result if you simply do a:
>>>
>>> for i in range(10):
>>>   cmds.duplicate()
>>>   
>>>
>>>
>>> Just in case you want to give the new objects a name, you can do a:
>>>
>>> newName = "BLOCK{0}".format(i)
>>>
>>> haggi
>>>
>>> Am 19.08.2017 um 15:31 schrieb Johnathan Scoon:
>>>
>>> Hey guys, I'm just playing around with simple for loops trying to get my 
>>> head around it. I wrote a script that creates a series of cubes and places 
>>> them a certain distance apart on the translate X axis. 
>>>
>>> from maya import cmds
>>> BlockList = ("BLOCK", "BLOCK1", "BLOCK2", "BLOCK3", "BLOCK4", "BLOCK5")
>>> cmds.polyCube(n="BLOCK")
>>> for s in BlockList:
>>>  cmds.duplicate()
>>>  Name = cmds.ls (selection = True)
>>>  movevalue = 2
>>>  postvalue = cmds.getAttr(Name[0]+".tx")
>>>  shift = movevalue + postvalue
>>>  cmds.move(shift,0,0)
>>>
>>>
>>> Now this works fine but what if I wanted to increase the number of cubes 
>>> to say 100 or more? It would be inefficient for me to have to type all 
>>> those names out into Blocklist. I know you can represent a long list of 
>>> numbers in a range, but I can't seem to find any information on how to make 
>>> a range what would include object names with the numbers. Any help here is 
>>> greatly appreciated! 
>>> -- 
>>> You received this message because you are subscribed to the Google 
>>> Groups "Python Programming for Autodesk Maya" group.
>>> To unsubscribe from this group and stop receiving emails from it, send 
>>> an email to python_inside_maya+unsubscr...@googlegroups.com.
>>> To view this discussion on the web visit 
>>> https://groups.google.com/d/msgid/python_inside_maya/6509bf81-3b30-4099-a1c8-de3358da91cd%40googlegroups.com
>>>  
>>> 
>>> .
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>>
>>> -- 
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>>  
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>

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Re: [Maya-Python] Python Noob question

2017-08-19 Thread Justin Israel

On Sun, Aug 20, 2017 at 1:51 AM Johnathan Scoon 
wrote:

> Hey thanks haggi, that definitely works. I'm still curious if there is a
> way to make a list of ascending objects into a range? Or do you think this
> would not ever be necessary?
>

It could be neccessary given the circumstances. The following creates an
empty list and then performs a for-loop to append formatted strings:

objs = []for i in xrange(1, 10):
objs.append('BLOCK{}'.format(i))



Python provides a feature called list comprehension, which can perform the
equivalent:

objs = ['BLOCK{}'.format(i) for i in xrange(1, 10)]





>
> On Saturday, 19 August 2017 09:43:26 UTC-4, haggi wrote:
>>
>> At a first glance, you do not need the BlockList at all because you so
>> not use the contents. You only use it to get a number of elements to
>> iterate over. You would get the same result if you simply do a:
>>
>> for i in range(10):
>>   cmds.duplicate()
>>   
>>
>>
>> Just in case you want to give the new objects a name, you can do a:
>>
>> newName = "BLOCK{0}".format(i)
>>
>> haggi
>>
>> Am 19.08.2017 um 15:31 schrieb Johnathan Scoon:
>>
>> Hey guys, I'm just playing around with simple for loops trying to get my
>> head around it. I wrote a script that creates a series of cubes and places
>> them a certain distance apart on the translate X axis.
>>
>> from maya import cmds
>> BlockList = ("BLOCK", "BLOCK1", "BLOCK2", "BLOCK3", "BLOCK4", "BLOCK5")
>> cmds.polyCube(n="BLOCK")
>> for s in BlockList:
>>  cmds.duplicate()
>>  Name = cmds.ls (selection = True)
>>  movevalue = 2
>>  postvalue = cmds.getAttr(Name[0]+".tx")
>>  shift = movevalue + postvalue
>>  cmds.move(shift,0,0)
>>
>>
>> Now this works fine but what if I wanted to increase the number of cubes
>> to say 100 or more? It would be inefficient for me to have to type all
>> those names out into Blocklist. I know you can represent a long list of
>> numbers in a range, but I can't seem to find any information on how to make
>> a range what would include object names with the numbers. Any help here is
>> greatly appreciated!
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Python Programming for Autodesk Maya" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to python_inside_maya+unsubscr...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/python_inside_maya/6509bf81-3b30-4099-a1c8-de3358da91cd%40googlegroups.com
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>>
>> --
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> 
> .
> For more options, visit https://groups.google.com/d/optout.
>

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[Maya-Python] Re: some Mel toughts

2017-08-19 Thread Cedric Bazillou

Like the other people said its a scripting language, and your variable are 
strongly typed ( so what is the point of whining :its normal to be confused 
when to start using something new...)
most of what you said for string manipulation has an equivalent in mel ( 
just need to learn how the docs are organized )

SO yeah its more difficult but you dont need OOp everywhere certainly not 
and at a scripting level ( automation and normal user executing code they 
drag from the script editor...).

A lot of people tend to be lure into aesthetics part of code when its the 
functionality and robustness which matters ( code maintenance and upgrade 
is another beast ).
When you will be a bit more c++ savy you can create your how nodes a 
command to do the actual work i you dont like mel syntax (for other people 
we work together at ilion btw )?

Le vendredi 18 août 2017 17:08:56 UTC-5, Rudi Hammad a écrit :
>
> Hello,
> I recently started a job in a studio that relies only on Mel, where python 
> is officially forbidden to use. I never used mel before. Since I am 
> familiar with C++ it was easy to learn, but still, I would like to share 
> some thought and try to explain 
> why I don´t like it. I only know 3 languages, python, c++ and mel now, so 
> maybe you can shed some light and tell me if my thoughts are wrong or if 
> you agree:
>
> 1-Why do you need to declare the data types in a high level scripting 
> languages? Aren´t data types declaration supposed to help manage memory to 
> optimize your programs? Since mel is high level, do you really need 
> declaring data types?
>  
> 2-the dollar sign before each variable. why? it feels that mel is not 
> smart enough to understand . It needs not only the declaration data type, 
> but also a $ to understand that you are creating a variable. 
>  
> 3-working with strings is excruciating in Mel. In python, since everything 
> is an object you can access all the string methods. .capitalize(), .split() 
> etc... To do simple .split in mel, you have to create a empty array first, 
> then use a proc like tokenize, give it the name to split, where to do the 
> split, and cast it in the empty array, and finally, retrieve the index you 
> need in that array in python you simply do somehting like myName = 
> l_myControl_CTR.split("_CTR")[0]...
>
> 4- quote marks to have a variable take a return. so string $myArray[] = 
> `ls -sl`;
>
> 5- no default values on arguments?! you can' t do something like proc 
> myFunc(string $myName="foo", int $default=1)
>
> (6. Also of course not having dictionaries , no external library, no OOP, 
> no access to the API are also big things to consider)
>
>
> My point is not to criticize anyone using Mel. This list is just to help 
> me understand a bit better how scripting languages compare to each other.
> When you work in a studio with a huge Mel legacy you have to get along 
> with it. And I do, I already developed many thing is mel. My only problem 
> is that I am not allowed to use python, but it is what it is.
>
> Anyway, to sum up, for the reasons I exposed above, I find Mel not smart, 
> long, ugly, very painful when it comes to strings, and very limited.
>
> So as I said, my point is not to criticize Mel, but try to understand it a 
> little better. Do you agree with anything I said, or am I just crazy
>
> Thanks,
> R
>

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Re: [Maya-Python] Python Noob question

2017-08-19 Thread Johnathan Scoon

Hey thanks haggi, that definitely works. I'm still curious if there is a 
way to make a list of ascending objects into a range? Or do you think this 
would not ever be necessary?

On Saturday, 19 August 2017 09:43:26 UTC-4, haggi wrote:
>
> At a first glance, you do not need the BlockList at all because you so not 
> use the contents. You only use it to get a number of elements to iterate 
> over. You would get the same result if you simply do a:
>
> for i in range(10):
>   cmds.duplicate()
>   
>
>
> Just in case you want to give the new objects a name, you can do a:
>
> newName = "BLOCK{0}".format(i)
>
> haggi
>
> Am 19.08.2017 um 15:31 schrieb Johnathan Scoon:
>
> Hey guys, I'm just playing around with simple for loops trying to get my 
> head around it. I wrote a script that creates a series of cubes and places 
> them a certain distance apart on the translate X axis. 
>
> from maya import cmds
> BlockList = ("BLOCK", "BLOCK1", "BLOCK2", "BLOCK3", "BLOCK4", "BLOCK5")
> cmds.polyCube(n="BLOCK")
> for s in BlockList:
>  cmds.duplicate()
>  Name = cmds.ls (selection = True)
>  movevalue = 2
>  postvalue = cmds.getAttr(Name[0]+".tx")
>  shift = movevalue + postvalue
>  cmds.move(shift,0,0)
>
>
> Now this works fine but what if I wanted to increase the number of cubes 
> to say 100 or more? It would be inefficient for me to have to type all 
> those names out into Blocklist. I know you can represent a long list of 
> numbers in a range, but I can't seem to find any information on how to make 
> a range what would include object names with the numbers. Any help here is 
> greatly appreciated! 
> -- 
> You received this message because you are subscribed to the Google Groups 
> "Python Programming for Autodesk Maya" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to python_inside_maya+unsubscr...@googlegroups.com .
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/python_inside_maya/6509bf81-3b30-4099-a1c8-de3358da91cd%40googlegroups.com
>  
> 
> .
> For more options, visit https://groups.google.com/d/optout.
>
>
>

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Re: [Maya-Python] Python Noob question

2017-08-19 Thread haggi

At a first glance, you do not need the BlockList at all because you so
not use the contents. You only use it to get a number of elements to
iterate over. You would get the same result if you simply do a:

for i in range(10):
cmds.duplicate()

Just in case you want to give the new objects a name, you can do a:

newName = "BLOCK{0}".format(i)

haggi

Am 19.08.2017 um 15:31 schrieb Johnathan Scoon:
Hey guys, I'm just playing around with simple for loops trying to get
my head around it. I wrote a script that creates a series of cubes and
places them a certain distance apart on the translate X axis.

from maya import cmds
BlockList = ("BLOCK", "BLOCK1", "BLOCK2", "BLOCK3", "BLOCK4", "BLOCK5")
cmds.polyCube(n="BLOCK")
for s in BlockList:
cmds.duplicate()
Name = cmds.ls (selection = True)
movevalue = 2
postvalue = cmds.getAttr(Name[0]+".tx")
shift = movevalue + postvalue
cmds.move(shift,0,0)

Now this works fine but what if I wanted to increase the number of
cubes to say 100 or more? It would be inefficient for me to have to
type all those names out into Blocklist. I know you can represent a
long list of numbers in a range, but I can't seem to find any
information on how to make a range what would include object names
with the numbers. Any help here is greatly appreciated!

--
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[Maya-Python] Python Noob question

2017-08-19 Thread Johnathan Scoon

Hey guys, I'm just playing around with simple for loops trying to get my 
head around it. I wrote a script that creates a series of cubes and places 
them a certain distance apart on the translate X axis. 

from maya import cmds
BlockList = ("BLOCK", "BLOCK1", "BLOCK2", "BLOCK3", "BLOCK4", "BLOCK5")
cmds.polyCube(n="BLOCK")
for s in BlockList:
 cmds.duplicate()
 Name = cmds.ls (selection = True)
 movevalue = 2
 postvalue = cmds.getAttr(Name[0]+".tx")
 shift = movevalue + postvalue
 cmds.move(shift,0,0)


Now this works fine but what if I wanted to increase the number of cubes to 
say 100 or more? It would be inefficient for me to have to type all those 
names out into Blocklist. I know you can represent a long list of numbers 
in a range, but I can't seem to find any information on how to make a range 
what would include object names with the numbers. Any help here is greatly 
appreciated! 

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Re: [Maya-Python] Re: some Mel toughts

Re: [Maya-Python] Python Noob question

Re: [Maya-Python] Python Noob question

[Maya-Python] Re: some Mel toughts

Re: [Maya-Python] Python Noob question

Re: [Maya-Python] Python Noob question

[Maya-Python] Python Noob question

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