[PD] cartesian to polar coordinates

[Hans-Christoph Steiner]

On Apr 21, 2006, at 11:05 AM, rodrigo at anorg.net wrote:

> hi there, I dropped out for a while.
>
>> On Thu, 20 Apr 2006 rodrigo at anorg.net wrote:
>>
>>> is there an abstraction or external to transform 3D cartesian
>>> coordinates to polar ones? If you can give me a hint, you would  
>>> save me
>>> the trigonometrical pain (I'm bad at this stuff).
>>
>> Three-dimensional? You mean cylindrical or spherical?
>>
>> BTW no-one agrees on how to do spherical, so from one formula to  
>> another,
>> cos and sin are often swapped, sign changes, order of arguments  
>> change,
>> etc.
>
> I did a little research. I meant spherical, and yes I've seen the  
> problems
> with the signs and so on. I finnaly made my own abtraction and it  
> works.
> Thanks for the info.

The zexy objects do 3 dimensions and are included with pd-extended.

.hc


________________________________________________________________________ 
____

"If nature has made any one thing less susceptible than all others of  
exclusive property, it is the action of the thinking power called an  
idea, which an individual may exclusively possess as long as he keeps  
it to himself; but the moment it is divulged, it forces itself into  
the possession of everyone, and the receiver cannot dispossess  
himself of it."
                                                        - Thomas  
Jefferson