Create a plot line with a gradient

Question

TikZ allows you to have shapes with gradients like this

\fill [
    left color=red,
    right color=blue,
] (0,0) circle

is the same possible for a plot line?

Something like

\addplot[very thick, smooth, left color=red, right color=blue]

does not work.

Could you supply us with some example code that replicates your current problem? We call this a MWE. It should start with \documentclass and end with \end{document}.
(1) http://meta.tex.stackexchange.com/questions/228/ive-just-been-asked-to-write-a-minimal-example-what-is-that — Peter Ebelsberger, May 07 '15 at 17:43
I think not: tikz-color-changing-path, but you can try with an alternative solution proposed in How to make a portion of curve red using TikZ? — Ignasi, May 07 '15 at 18:05

score 8 · Accepted Answer · answered May 07 '15 at 18:08

You can use the mesh plot style and a colormap for this:

\documentclass{standalone}

\usepackage{pgfplots}

\begin{document}
    \begin{tikzpicture}
    \begin{axis}[domain=0:360, enlargelimits=false]
    \addplot [
        mesh, % Use line segments instead of one unbroken line
        colormap={}{ % Define the colormap
            color(0cm)=(red);
            color(1cm)=(blue);
        },
        ultra thick,
        point meta=x % Define the value that's used to determine the color
    ] {sin(x)};
    \end{axis}
    \end{tikzpicture}
\end{document}

Create a plot line with a gradient

1 Answers1

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