Radians vs. Degrees

[Chris Liechti]

Jef <plungermonkey at cox.net> wrote in news:3D33016C.8030804 at cox.net:
>    I'm new to this NG so please bear with me :-) I'm writing an addon 
> for the Quake2 editor named QuArK and could use some advice from the 
> math/coding gurus out there.

welcome
 
>    My problem is that I'm trying to create a torus (donut) and the C 
> code I'm looking at uses DTOR to convert degrees to radians and I see no 
> mention of it (DTOR) in Python. My question is whether I need this in 
> Python or does Python automatically convert to radians during 
> calculations?

no. all math/trigonometric functions expect radians.
some conversion functions are easily written:
>>> import math
>>> def toDEG(rad):
... 	return 180.0*rad/math.pi
... 
>>> def toRAD(deg):
... 	return math.pi*deg/180.0
... 
>>> math.sin(toRAD(90))
1.0

>Also, do the FOR loops work the same as in C++ (e.g. 
> FOR(x=0, x<360, x++))? If not, any suggestions on how to do this?

no. "for" works a little bit differnt in python: it iterates over a list 
and takes one element after an other. if you want to count, you can use the 
range() function to create a list of numbers.

for c in range(360):
  ...

or maybe you want to convert directly to radians:
for c in map(toRAD, range(360)):
  ...

(map applies the function (1st arg) to each element in a list (2nd arg))

chris


-- 
Chris <cliechti at gmx.net>