![几何布局中的精确 Tikz 坐标](https://linux22.com/image/328448/%E5%87%A0%E4%BD%95%E5%B8%83%E5%B1%80%E4%B8%AD%E7%9A%84%E7%B2%BE%E7%A1%AE%20Tikz%20%E5%9D%90%E6%A0%87.png)
我使用 将多张图片放在一页上Tikz
。我使用geometry layout
。我想找出页面(不是实际页面)左上角的准确坐标layout
。我已经找到了坐标脚本,但我不确定是否有必要。欢迎提出任何建议。注意:目的是将最终Tikz
图片(由多张图片和标签组成)置于layout
页面的中心。
\documentclass[12pt]{extbook}
% ############################## geometry
\usepackage%[showframe]
{geometry}
\geometry
{ hmarginratio = 1:1
, vmarginratio = 1:1
, bindingoffset = 0cm
, onecolumn
, a4paper
, layoutwidth = 50 mm
, layoutheight = 180 mm
, layouthoffset=\dimexpr(\paperwidth-\csname Gm@layoutwidth\endcsname)/2\relax
, layoutvoffset=\dimexpr(\paperheight-\csname Gm@layoutheight\endcsname)/2\relax
, showcrop
}
\usepackage{fancyhdr}
\usepackage{mwe}
\usepackage{graphicx}
\usepackage{tikz}
\usetikzlibrary{calc}
\makeatletter
\def\parsecomma#1,#2\endparsecomma{\def\page@x{#1}\def\page@y{#2}}
\tikzdeclarecoordinatesystem{page}{
\parsecomma#1\endparsecomma
\pgfpointanchor{current page}{north east}
% Save the upper right corner
\pgf@xc=\pgf@x%
\pgf@yc=\pgf@y%
% save the lower left corner
\pgfpointanchor{current page}{south west}
\pgf@xb=\pgf@x%
\pgf@yb=\pgf@y%
% Transform to the correct placement
\pgfmathparse{(\pgf@xc-\pgf@xb)/2.*\page@x+(\pgf@xc+\pgf@xb)/2.}
\expandafter\pgf@x\expandafter=\pgfmathresult pt
\pgfmathparse{(\pgf@yc-\pgf@yb)/2.*\page@y+(\pgf@yc+\pgf@yb)/2.}
\expandafter\pgf@y\expandafter=\pgfmathresult pt
}
\makeatother
% ############################### Document
\begin{document}
\thispagestyle{empty}
\begin{tikzpicture}[remember picture, overlay]
\node[inner sep=0pt] (A) at (page cs:0,0.5)
{\includegraphics[width=5cm]{example-image}};
\draw[black, thick] ($(A.north west)$) rectangle ($(A.south east)$);
\node[inner sep=0pt] (B) at ([yshift=-71pt]A.south)
{\includegraphics[width=5cm]{example-image}};
\draw[black,thick] ($(B.north west)$) rectangle ($(B.south east)$);
\end{tikzpicture}
\end{document}
答案1
这是定位布局区域中心的另一种方法。(无论它是否更简单......)
\documentclass[12pt]{extbook}
% ############################## geometry
\usepackage%[showframe]
{geometry}
\makeatletter% rename layout variables
\def\layoutwidth{\Gm@layoutwidth}
\def\layoutheight{\Gm@layoutheight}
\def\layouthoffset{\Gm@layouthoffset}
\def\layoutvoffset{\Gm@layoutvoffset}
\makeatother
\geometry
{ hmarginratio = 1:1
, vmarginratio = 1:1
, bindingoffset = 0cm
, onecolumn
, a4paper
, layoutwidth = 50 mm
, layoutheight = 180 mm
, layouthoffset=\dimexpr(\paperwidth-\layoutwidth)/2\relax
, layoutvoffset=\dimexpr(\paperheight-\layoutheight)/2\relax
, showcrop
}
\usepackage{fancyhdr}
\usepackage{mwe}
\usepackage{graphicx}
\usepackage{tikz}
\usetikzlibrary{calc}
\newsavebox{\tempbox}
% ############################### Document
\begin{document}
\thispagestyle{empty}
\savebox{\tempbox}{%
\begin{tikzpicture}
\node[inner sep=0pt] (A) at (0,0.5)
{\includegraphics[width=5cm]{example-image}};
\draw[black, thick] ($(A.north west)$) rectangle ($(A.south east)$);
\node[inner sep=0pt] (B) at ([yshift=-71pt]A.south)
{\includegraphics[width=5cm]{example-image}};
\draw[black,thick] ($(B.north west)$) rectangle ($(B.south east)$);
\end{tikzpicture}}
\begin{tikzpicture}[remember picture, overlay]
\path (current page.north west) ++(\layouthoffset,-\layoutvoffset)
++(0.5\layoutwidth,-0.5\layoutheight) coordinate(Center);
\node[inner sep=0pt] at (Center) {\usebox{\tempbox}};
\end{tikzpicture}
\end{document}