[PD] cartesian to polar coordinates

[rodrigo at anorg.net]

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.

cheers
rodrigo

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