On 19 January 2013 15:47, Jose Amoreira wrote:
> Thanks for the explanation, Alan
>
>> Is there a good reason to want to do such a thing?
>
> There is a reason, but maybe you won't consider it a good one...
>
> I was writing a small program to simulate the gravitational dynamics of a
> system of m
On Sat, Jan 19, 2013 at 10:47 AM, Jose Amoreira wrote:
>
> I defined a class, CelestialBody, that describes objects that
> represent planets in my simulation. These objects have three attributes:
> position, velocity and mass (the first two are 3D-vectors; as such, the
> number of attributes is ac
Hi Jose, have you thought about shallow copying?
I am learning Python too, so I can be wrong here. But I have just tried the
idea and it worked for me:
class celestialBody(object):
def __init__(self, m, x, y, z):
self.mass = m
self.pos = [x, y, z]
def __str__(self):
On 19/01/13 15:47, Jose Amoreira wrote:
motion. I defined a class, CelestialBody, that describes objects that
represent planets in my simulation. These objects have three attributes:
position, velocity and mass (the first two are 3D-vectors; as such, the
number of attributes is actually 7). The
Thanks for the explanation, Alan
>
> Is there a good reason to want to do such a thing?
There is a reason, but maybe you won't consider it a good one...
I was writing a small program to simulate the gravitational dynamics of a
system of many planets, using scipy's odeint to solve the equations
On 18/01/13 11:11, Jose Amoreira wrote:
Suppose I have a list l_obj of similar objects. Is there any way I can
generate a list l_prp of references to a given property of those objects
in such a way that, if change the value of one element in l_prp, the
corresponding object in l_obj gets its prop
Thanks, Peter.
I was trying to avoid the regenerate step for updating. But maybe I can
restructure my code and objects to make this simpler. Before that I'll try
this view approach.
Thanks again
Ze
On Fri, Jan 18, 2013 at 11:37 AM, Peter Otten <__pete...@web.de> wrote:
> Jose Amoreira wrote:
>
>
Jose Amoreira wrote:
> Hello
> Suppose I have a list l_obj of similar objects. Is there any way I can
> generate a list l_prp of references to a given property of those objects
> in such a way that, if change the value of one element in l_prp, the
> corresponding object in l_obj gets its property
