宏观向右移动

Question

每次我使用此宏时，它都会向右移动。为什么？

\newcommand*{\addLine}[1]{
    \begin{tikzpicture}[overlay, remember picture]
        \coordinate (x) at (#1,0);
        \draw [open triangle 45-] (0,0) -- (x);
    \end{tikzpicture}
}

编辑

好吧，我调整了我的真实宏（我只是为了演示而提供了一个较小的示例），但我仍然有一点差距：

    \newcommand*{\AddNote}[4]{%
    \begin{tikzpicture}[overlay, remember picture]%
                \coordinate (x) at (#2,0);
                \coordinate (a) at ($(x)!(#1.north)!($(x)+(0,1)$)$);
                \coordinate (b) at ($(a)+(0.5,0)$);
                \coordinate (c) at ($(b)+(0,#3)$);
                \draw [open triangle 45-] (a) -- (b) -- (c);
                \node[right] at (c) {\bf\sffamily\smaller#4};
    \end{tikzpicture}%
    }

Answer 1

您的宏引入了虚假空格。请参见为什么宏定义中的行尾%

带有注释字符：

无注释字符：

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{arrows}
\newcommand*{\addLine}[1]{% <--- a space is introduced without this %
    \begin{tikzpicture}[overlay, remember picture]
        \coordinate (x) at (#1,0);
        \draw [open triangle 45-] (0,0) -- (x);
    \end{tikzpicture}% <--- a space is introduced without this %
}
\begin{document}
\addLine{1}\addLine{1}
\end{document}