颜色循环和忘记情节

Question

我使用cycle list name=exotic它来为我的图着色。我正在寻找一种方法，要么使用数字来引用颜色（来自外来列表的索引），要么获取标记图的颜色。

以下是我尝试过的一个例子：

    \pgfplotsset{cycle list name=exotic}
    \begin{tikzpicture}
    \begin{axis}[enlarge x limits=false]
        \addplot+[thick, no marks, domain=0:360, samples=50, forget plot]  {sin(x)};
        \addplot+[thick, no marks, domain=0:360, samples=50]  {cos(x)};
        \legend{plot 1, plot 2}
    \end{axis}
    \end{tikzpicture}

但当然，第一个图被“遗忘”了，因此没有被考虑在颜色代码中。（即使存在更简单的解决方案，访问标记图的颜色可能也很有用。）

Answer 1

我将在这里给出一个如何做到这一点的一般示例。诀窍是首先定义一个colormap，然后将其转换colormap为一个。对于其他内容，您可以使用PGFPlots v1.13 中引入的新功能cycle list访问的颜色。colormapindex of colormap

有关更多详细信息，请查看代码中的注释。

\documentclass[border=2mm]{standalone}
\usepackage{pgfplots}
    \pgfplotsset{
        compat=1.11,
        %
        % define a colormap that contains the colors you
        % want to use in the `cycle list'
        colormap={my colormap}{
            color=(red)
            color=(blue!50)
            color=(green!50!black)
            color=(orange)
        },
        % define some other `cycle list's to later combine them if you need
        % I will use here some predefined ones for simplicity
    }
    % now create a `cycle list' from that colors
    \pgfplotscreateplotcyclelist{my color cycle list}{
        [of colormap=my colormap]
    }
\begin{document}
    \begin{tikzpicture}
        \begin{axis}[
            % some options to better visualize the result
            stack plots=y,
            every axis plot/.style={
                line width=2pt,
            },
            %
            % define here the `cycle list' you need
            cycle multiindex* list={
                my color cycle list
                    \nextlist
                [3 of]mark list
                    \nextlist
                linestyles
                    \nextlist
            },
        ]
            % add some plots
            \addplot coordinates {(0,1) (0.5,1) (1,1)};
            \addplot coordinates {(0,1) (0.5,1) (1,1)};
            \addplot coordinates {(0,1) (0.5,1) (1,1)};
            \addplot coordinates {(0,1) (0.5,1) (1,1)};

            % if you want to use the color of the 2nd plot you can do this via
            % (you need index 1 here, because the index starts at 0)
            \node [index of colormap=1,anchor=south]
                at (0.25,2) {I am the 2nd color};
        \end{axis}
    \end{tikzpicture}
\end{document}