使用 TikZ 更改线高和线粗细

Question

如果可能的话，我想使用下面的代码来改变连续线之间的距离（此处的高度距离为 1 厘米）以及线条的粗细。

我需要像我的 MWE 中一样缩进页眉的参考编号和页面。我可以更改颜色和不透明度。如果可能的话，我想要一页行，我可以用简单的代码更改行高距离、行不透明度、行粗细和行颜色

% !TeX program = xelatex
% !TeX spellcheck = en_GB
\documentclass[11pt,addpoints]{exam}
\usepackage{amsmath} % need for fractions
\usepackage{amssymb}%need this for square boxes
\usepackage{mathptmx}% this for heavy font also charter
\usepackage{graphicx}
\usepackage{float}
\pagestyle{head}
\usepackage{parskip}% this stops indent of first line in paragraph
\headrule % puts a line under the header
\header{ Reference number
}{ }{Page}

\usepackage{geometry}
\newgeometry{left=0.4in ,right=1.5cm, top=0.6in,  bottom=0.75in}

\usepackage{tikz}
\usetikzlibrary{calc}

\begin{document}
    %\pagestyle{empty}
    \begin{tikzpicture}[remember picture,overlay   ]
        \foreach \i in {1,2,...,27}{ 
            \draw[lightgray,opacity=1 ] ($(current page.north west)+(0,-\i)$) -- ($(current page.north east)+(0,-\i)$)           ;}
    \end{tikzpicture}
    
\end{document}

Answer 1

改编

• 我添加了两个可以设置的新长度：
  • \ymin定义第一行应该在哪里，以及
  • \lineheight定义两条线之间的距离。
• \ymax经过计算就可以知道必须画多少条线。
• 可以使用选项设置线条粗细line width=<length>。

代码

% !TeX program = xelatex
% !TeX spellcheck = en_GB
\documentclass[11pt,addpoints]{exam}
\usepackage{amsmath} % need for fractions
\usepackage{amssymb}%need this for square boxes
\usepackage{mathptmx}% this for heavy font also charter
\usepackage{graphicx}
\usepackage{float}
\pagestyle{head}
\usepackage{parskip}% this stops indent of first line in paragraph
\headrule % puts a line under the header
\header{ Reference number
}{ }{Page}

\usepackage{geometry}
\newgeometry{left=0.4in ,right=1.5cm, top=0.6in,  bottom=0.75in}

\usepackage{tikz}
\usetikzlibrary{calc}

\begin{document}
    \newlength{\ymin}
    \newlength{\lineheight}
    \setlength{\lineheight}{7mm}
    \setlength{\ymin}{15mm}
    \pgfmathsetmacro{\ymax}{int((299mm - \ymin) / \lineheight)}
    
    \begin{tikzpicture}[remember picture, overlay]
        \foreach \i in {0, ..., \ymax}{ 
            \draw[lightgray, opacity=1, line width=.4pt] ($(current page.north west)+(0,-\ymin-\i*\lineheight)$) -- ($(current page.north east)+(0,-\ymin-\i*\lineheight)$);
        }
    \end{tikzpicture}
\end{document}

结果