sorting an array / list ?

Helper

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On 07/03/2011 at 23:38, xxxxxxxx wrote:

Hi Everyone,

I am trying to sort an array which is called list in python i guess.
i tried

boundingbox = activeobject.GetRad()   
print boundingbox   
alist = (boundingbox.x, boundingbox.y, boundingbox.z)   
print alist   
alist.sort()

which gives me

AttributeError: 'tuple' object has no attribute 'sort'

what am I doing wrong ?

thanks in advance
mogh

Helper

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On 08/03/2011 at 02:05, xxxxxxxx wrote:

as py-doc non c4d's, to sort tuple-object, seems need to use `

itertools.permutations`( _iterable_ [, _r_ ])

or i'm making mistake?!

`

`  
import c4d,itertools  
from c4d import gui,documents  
#Welcome to the world of Python  
  
def main() :  
  activeobject = doc.GetActiveObject()  
  boundingbox = activeobject.GetRad()  
  
  print boundingbox  
  
  alist = (boundingbox.x, boundingbox.y, boundingbox.z)  
  
  print alist  
  print list(itertools.permutations(alist,2))  
  #alist.sort()  
  
if __name__=='__main__':  
  main()

Helper

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On 08/03/2011 at 05:07, xxxxxxxx wrote:

(200.0, 24.999999999999996, 100.0)

[(200.0, 24.999999999999996), (200.0, 100.0), (24.999999999999996, 200.0), (24.999999999999996, 100.0), (100.0, 200.0), (100.0, 24.999999999999996)]

your script gives me this as an output, which is wiered and not sorted at all?

still - thanks for your help
regrads mogh

Helper

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On 08/03/2011 at 05:43, xxxxxxxx wrote:

`product('ABCD', repeat=2)`		`AA AB AC AD BA BB BC BD CA CB CC CD DA DB DC DD`
`permutations('ABCD', 2)`		`AB AC AD BA BC BD CA CB CD DA DB DC`
`combinations('ABCD', 2)`		`AB AC AD BC BD CD`

_<_t_>_all work with tuple

`product()`	p, q, ... [repeat=1]	cartesian product, equivalent to a nested for-loop
`permutations()`	p[, r]	r-length tuples, all possible orderings, no repeated elements
`combinations()`	p[, r]	r-length tuples, in sorted order, no repeated elements_/t>

Helper

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On 08/03/2011 at 06:11, xxxxxxxx wrote:

hm I guess we missunderstand each other, i want

(C,B,A,D) => (A,B,C,D)

but with the single values of a vector like

(200.0, 24.999999999999996, 100.0) => (200.0, 100.0, 24.999999999999996)

so when i acces the first of a list

i get the highes and when i acces the last the smallest number. There is probably a clever version for a min max but i need these 3 values sorted so min max wont do the job completely.

by the way how do i access the first in the list ?

alist[1] ???

kind regards mogh

Helper

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On 08/03/2011 at 07:53, xxxxxxxx wrote:

you created a tuple instead of a list.. try this:
alist = [200.0, 24.999999999999996, 100.0]
print alist
alist.sort()
alist.reverse()
print alist
print alist[0] #first element

Helper

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On 09/03/2011 at 01:12, xxxxxxxx wrote:

boundingbox = activeobject.GetRad()   
    print boundingbox   
    atuple = (boundingbox.x, boundingbox.y, boundingbox.z)   
    alist = list(atuple)   
    alist.sort()   
    alist.reverse()   
    print alist

thanks its working now, but i had to convert the tuple to a list first.
thanks for all your help
kind regards mogh

Helper

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On 09/03/2011 at 09:14, xxxxxxxx wrote:

Well, can i ask Sebastian, can we manipulate tuple objects by native or in-built py-tools?
I see that can... or need to use conversation between data-objects as other methods are impossible?!

Helper

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On 11/03/2011 at 13:32, xxxxxxxx wrote:

Tuples aren't like lists, they are meant to be kept "as is" and you can't change their values. They are more like a "constat list". You need to convert them to a list if you want to manipulate them, that's just the way it works in Python.