Re: [Matplotlib-users] plot color as a function of values?

[thkoe002 <thk...@gm...>]

Maybe a little shorter is the where() keyword, and even that can be omitted:

ax.plot(t[where(s>=0)],s[where(s>=0)],"g")
ax.plot(t[where(s<0)],s[where(s<0)],"r")

or, shorter:

ax.plot(t[s>=0],s[s>=0],"g")
ax.plot(t[s<0],s[s<0],"r")

cheers

Thomas



Xavier Gnata-2 wrote:
> 
> Hi,
> 
> Imagine you have something like:
> 
> from pylab import *
> t = arange(0.0, 2.0, 0.01)
> s = sin(2*pi*t)
> ax = subplot(111)
> ax.plot(t, s)
> 
> That's fine but now I would like to plot the negative parts of the curve 
> in red and the positive one in green.
> Is there a nice pylab oriented way to do that? Some kind of "conditional 
> formating"?
> 
> Xavier
> 
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay 
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> http://p.sf.net/sfu/devconference
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> 
> 

-- 
View this message in context: http://www.nabble.com/plot-color-as-a-function-of-values--tp25848622p25858967.html
Sent from the matplotlib - users mailing list archive at Nabble.com.