adding custom legends to multicolored line

Hi ,

I wish to add a custom legend to a multicolored line drawn using matplotlib as shown in the figure below
http://www.scipy.org/Cookbook/Matplotlib/MulticoloredLine
I tried exploring the legend but somehow couldn’t figure out its usage and how to adapt it to multicolored line as in the above link
I need to use say Red line for label1 and blue line for label2 and green line for label3. All the three colors are a part of a single sinusoidal wave as in the above link.
Any thoughts/ideas/suggestions which could provide me some direction on this would be highly appreciated.

···

Thanks and Regards,

RaviKanth

You may use a proxy artist.

http://matplotlib.sourceforge.net/users/legend_guide.html#using-proxy-artist

for example,

from matplotlib.lines import Line2D
l1 = Line2D([], [], linewidth=3, color="r")
l2 = Line2D([], [], linewidth=3, color="g")
l3 = Line2D([], [], linewidth=3, color="b")

legend([l1, l2, l3], ["label 1", "label 2", "label 3"])

Regards,

-JJ

···

On Wed, Aug 17, 2011 at 1:24 AM, Ravi Kanth Vanapalli <vvnrk.vanapalli@...287...> wrote:

Hi ,

I wish to add a custom legend to a multicolored line drawn using matplotlib
as shown in the figure below
http://www.scipy.org/Cookbook/Matplotlib/MulticoloredLine
I tried exploring the legend but somehow couldn't figure out its usage and
how to adapt it to multicolored line as in the above link
I need to use say Red line for label1 and blue line for label2 and green
line for label3. All the three colors are a part of a single sinusoidal wave
as in the above link.
Any thoughts/ideas/suggestions which could provide me some direction on this
would be highly appreciated.

--
Thanks and Regards,
RaviKanth

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