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调整图表上标签的单独位置

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调整图表上标签的单独位置

我正在尝试调整标签位置，但似乎已经固定了。出了什么问题？

\documentclass{standalone}

\usepackage{pgfplotstable}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\usepackage{filecontents}
\begin{filecontents}[overwrite]{weatherdata.dat}
month;insulation 1931-1960;anchor 1;insulation 1981-2010;anchor 2
January;192.2;south;185.8;north
February;173.0;north;186.6;south
March;195.9;south;192.5;north
April;183.2;north;168.7;north
May;197.9;south;179.0;south
June;201.5;west;170.6;north
July;219.9;{south east};184.4;{south east}
August;219.3;west;184.4;{north east}
September;156.8;east;140.8;east
October;152.2;south;144.8;{north west}
November;153.2;south;150.3;{north east}
December;153.5;north;158.2;south
\end{filecontents}
\begin{document}

\pgfplotstableread[col sep=semicolon, header = true]
{weatherdata.dat}\wheatertable


\begin{tikzpicture}
    \begin{axis}[
        width  = 15cm,
        height = 7cm,
        major x tick style = transparent,
        smooth,
        line width = 1 pt, 
        ymajorgrids = true,
        yminorgrids = true,
        ylabel = {Total insulation [h]},
        axis x line=center,
        axis y line=left,
        nodes near coords = {\pgfmathprintnumber\pgfplotspointmeta},
        nodes near coords align={vertical},
        xtick = data,
        scaled y ticks = false,
        xticklabels from table = {\wheatertable}{month},
        every node near coord/.append style={%
            rotate=0,
            font=\scriptsize,
            /pgf/number format/precision=1,
            /pgf/number format/fixed,
            /pgf/number format/fixed zerofill,
            /pgf/number format/1000 sep={.},
            /pgf/number format/set decimal separator={,}        
            },%label above bar
        enlarge x limits=0.05,
        ymin=135,
        ymax=230,
        ylabel style={rotate=0},
        x tick label style={font=\small,align=right, rotate = 45, anchor = east},%text width=3.0cm},
        legend cell align=left,
        legend style={%
            at={(0.98,1.1)},
            anchor=south east,
            column sep=1ex,
            font = \scriptsize
        }%%
        ]
        \addplot[style={blue, mark=*},
            x = \coordindex,
            y = \thisrowno{1},
            visualization depends on = {\thisrowno{2} \as \firstanchor},
            every node near coord/.append style={anchor=\firstanchor},
            ] 
        table[x expr = \coordindex, y index = 1] {\wheatertable};
        \addlegendentry{1931-1960};
        \addplot[style={red,mark=square*},
            visualization depends on = {\thisrowno{4} \as \secondanchor},
            every node near coord/.append style={anchor=\secondanchor},     
            ] 
        table[x expr = \coordindex, y index = 3] {\wheatertable};
        \addlegendentry{1981-2010};
    %   \addplot[top color=red!20, bottom color=cyan!20] fill between[of=min and max];
    \end{axis}
\end{tikzpicture}

\end{document}

在此处输入图片描述

答案1

我以前遇到过这种情况，但我并不认为以下方法是最好的解决方案。由于某种原因，锚点被 y 坐标（即元值）覆盖。这里有一种可能的解决方法：而不是使用visualization depends on来scatter/@pre marker code获取锚点。（回想一下，这nodes near coords是节点的散点图。）

\documentclass{standalone}

\usepackage{pgfplotstable}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\usepackage{filecontents}
\begin{filecontents}[overwrite]{weatherdata.dat}
month;insulation 1931-1960;anchor 1;insulation 1981-2010;anchor 2
January;192.2;south;185.8;north
February;173.0;north;186.6;south
March;195.9;south;192.5;north
April;183.2;north;168.7;north
May;197.9;south;179.0;south
June;201.5;west;170.6;north
July;219.9;{south east};184.4;{south east}
August;219.3;west;184.4;{north east}
September;156.8;east;140.8;east
October;152.2;south;144.8;{north west}
November;153.2;south;150.3;{north east}
December;153.5;north;158.2;south
\end{filecontents}
\begin{document}

\pgfplotstableread[col sep=semicolon, header = true]
{weatherdata.dat}\wheatertable

\begin{tikzpicture}
    \begin{axis}[
        width  = 15cm,
        height = 7cm,
        major x tick style = transparent,
        smooth,
        line width = 1 pt, 
        ymajorgrids = true,
        yminorgrids = true,
        ylabel = {Total insulation [h]},
        axis x line=center,
        axis y line=left,
        nodes near coords= {\pgfmathprintnumber\pgfplotspointmeta},
        nodes near coords align={vertical},
        scatter/@pre marker code/.code={
        \pgfplotstablegetelem{\coordindex}{[index]2}\of\wheatertable%#1=row, #2=column
        \edef\firstanchor{\pgfplotsretval}% 
        \pgfplotstablegetelem{\coordindex}{[index]4}\of\wheatertable%#1=row, #2=column
        \edef\secondanchor{\pgfplotsretval}%    
        },
        xtick = data,
        scaled y ticks = false,
        xticklabels from table = {\wheatertable}{month},
        every node near coord/.append style={%
            rotate=0,
            font=\scriptsize,
            /pgf/number format/precision=1,
            /pgf/number format/fixed,
            /pgf/number format/fixed zerofill,
            /pgf/number format/1000 sep={.},
            /pgf/number format/set decimal separator={,}        
            },%label above bar
        enlarge x limits=0.05,
        ymin=135,
        ymax=230,
        ylabel style={rotate=0},
        x tick label style={font=\small,align=right, rotate = 45, anchor = east},%text width=3.0cm},
        legend cell align=left,
        legend style={%
            at={(0.98,1.1)},
            anchor=south east,
            column sep=1ex,
            font = \scriptsize
        }%%
        ]
        \addplot[style={blue, mark=*},
            x = \coordindex,
            y = \thisrowno{1},
            every node near coord/.append style={anchor/.expanded=\firstanchor},
            ] 
        table[x expr = \coordindex, y index = 1] {\wheatertable};
        \addlegendentry{1931-1960};
        \addplot[style={red,mark=square*},
            every node near coord/.append style={anchor=\secondanchor},     
            ] 
        table[x expr = \coordindex, y index = 3] {\wheatertable};
        \addlegendentry{1981-2010};
    %   \addplot[top color=red!20, bottom color=cyan!20] fill between[of=min and max];
    \end{axis}
\end{tikzpicture}

\end{document}

在此处输入图片描述

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