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El jue, 05-01-2012 a las 08:29 +0100, aishen escribi?:
> Le 05/01/2012 00:21, Edwin Woollett a ?crit :
> > On Jan. 4, 2012, aishen wrote:
> > ------------------
> >> I would like to integrate yin or yang...
> >> As I am not an expert, I can't solve the 1/2 circle on the right side ?
> >> Is there a way of doing it ?
> > ---------------------------
> > Could you describe in words what you want
> > the image to look like, relating your verbal description to the 
> > functions you have defined?
> >
> > Ted Woollett
> >
> >
> >
> >
> Yes, sorry :)
> 
> At hawaii edu there is an aera_between_curves.wxm tutorial, after doing 
> it with few curves, I wanted to try it with taijiwu (yin/yang symbol). 
> But I am unable to hide 1/2 small upper circle as the following included 
> pictures : Yin.png is what I obtained, but i would like to delete the 
> 1/2 circle on the right, like I did with gimp for yang.png, but with a 
> function if possible. Maybe my design is uncomplete or wrong ?
> After I would like to integrate the grey one, I guess it's pi ? 
> (depending x,y).
> I hope I explain myself clearly enaugh ?
> Regards
> Henri Girard



draw2d(
  proportional_axes = xy,
  title       = "Ying-Yang",
  ellipse(0,0,2,2,0,360),
  fill_color  = black,
  filled_func = -sqrt(4-x^2),
  explicit(if x < 0 then sqrt(-x^2-2*x) else -sqrt(-x^2+2*x),x,-2,2))$


--
Mario