使用带有后台包的 calc 库

Question

我尝试使用装饰和背景包在每个页面上放置页面边框。我想将此框架放置在距离页面边框 0.6 厘米的位置，因此我使用 tikz 的 calc 库根据坐标指定每个页面的框架位置。即使文档是用 XeLaTeX 编译的，并且框架放置正确 - 我猜 - 我还是收到错误：

Package pgf Error: No shape named {current page.north west} + {0.6cm,-0.6cm}

以下是 MWE：

\documentclass[a5paper,10pt,openany,oneside]{book}
\usepackage[object=vectorian]{pgfornament}
\usetikzlibrary{positioning,calc}
\usepackage{background}
\usepackage{lipsum}

\def\xoffset{0.6cm}
\def\yoffset{0.6cm}
\def\ornament{61}
\def\ornamentcolor{black}

%Command for inserting the frames
\newcommand{\pageframe}{

  \begin{tikzpicture}[remember picture, overlay, inner sep=0pt]
      %Necessary coordinates
      \coordinate (UR) at ($(current page.north east) + (-\xoffset,-\yoffset)$);
      \coordinate (UL) at ($(current page.north west) + (\xoffset,-\yoffset)$);
      \coordinate (LR) at ($(current page.south east) + (-\xoffset,\yoffset)$);
      \coordinate (LL) at ($(current page.south west) + (\xoffset,\yoffset)$);
      \coordinate (CL) at ($(current page.west) + (\xoffset,0)$);
      \coordinate (CR) at ($(current page.east) + (-\xoffset,0)$);

      %Ornaments located at the corners of the page
      \node[anchor=north west] (ULCorner) at (UL){%
        \pgfornament[width = 2cm,color = \ornamentcolor ]{\ornament}};%
      \node[anchor=north east] (URCorner) at (UR){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=v ]{\ornament}};%
      \node[anchor=south east] (LRCorner) at (LR){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=c ]{\ornament}};%
      \node[anchor=south west] (LLCorner) at (LL){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=h ]{\ornament}};%

      %Ornaments between the corners: Calculates the distance between the 2 upper corners and uses it for the width of the bar ornament.
      \path (CL) let \p1 = ($(URCorner.north west) - (ULCorner.north east)$)
       in node[anchor=center, rotate=90, inner sep=-3pt] (CLBar) at (CL){\pgfornament[width=\x1 ,color = \ornamentcolor]{88}};%
      \path (CR) let \p1 = ($(URCorner.north west) - (ULCorner.north east)$)
       in node[anchor=center, rotate=90, inner sep=0pt] (CRBar) at (CR){\pgfornament[width=\x1 ,color = \ornamentcolor]{88}};%
      \draw[line width=1.5pt,line cap=round,black]($(CLBar.east) + (0.8pt,0)$) to ($(ULCorner.south west) + (0.8pt,1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CRBar.east) + (0.8pt,-1pt)$) to ($(URCorner.south east) + (0.8pt,1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CLBar.west) + (0.8pt,0)$) to ($(LLCorner.north west) + (0.8pt,-1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CRBar.west) + (0.8pt,1)$) to ($(LRCorner.north east) + (0.8pt,-1pt)$){};

      %Ornaments between he corners: Top and bottom.
       \path[] (ULCorner.north east) to [ornament=88, color=black] (URCorner.north west) {};
       \path (LRCorner.south west) to [ornament=88,color=black] (LLCorner.south east) {};

  \end{tikzpicture}}

\backgroundsetup{scale=1,color=black,opacity=1,contents=\pageframe,  angle=0,position={{(current page.north west)} + {(\xoffset,-\yoffset)}},nodeanchor=north west}

\begin{document}
 \lipsum[1-5]
\end{document}

我的问题是：我做错了什么？背景包是否接受这种类型的表达式？

Answer 1

该解决方案使用包可每页节省约 20 kB 并节省一些编译时间xsavebox。

打开背页。

1页lipsum售价16,345英镑，

2页lipsum的价格为19,831 B，

10 页的 Lipsum 售价为 36,361 B（xelatex）

编辑： 代码针对文件大小和图形精度进行了进一步优化。角装饰和“条形装饰”被保存下来，xsaveboxes以便在各个位置重复使用。此外，还对“条形装饰”的线条进行了采样，以便稍后在页面的左右边缘延伸“条形装饰”。

适用于所有引擎/后端，包括dvips：

\documentclass[a5paper,10pt,openany,oneside]{book}
\usepackage[object=vectorian]{pgfornament}
\usetikzlibrary{positioning,calc}
\usepackage{eso-pic}
\usepackage{xsavebox}
\usepackage{lipsum}

%some size calculations
\def\xoffset{0.6cm}
\def\yoffset{0.6cm}
\def\cornerOrnamentWidth{2cm}
\edef\barOrnamentWidth{\the\dimexpr\paperwidth-\xoffset*2-\cornerOrnamentWidth*2\relax}

\def\cornerOrnament{61}
\def\barOrnament{88}

\def\ornamentcolor{black}

% This saves the whole ornament frame once in an xsavebox.
\AtBeginDocument{%
  \xsbox{OrnamentCorner}{\pgfornament[width = \cornerOrnamentWidth, color = \ornamentcolor]{\cornerOrnament}}%  
  \xsbox{OrnamentBar}{\pgfornament[width=\barOrnamentWidth, color = \ornamentcolor]{\barOrnament}}%  
  \xsbox{LineSample}{\makebox[2.5cm][r]{\theOrnamentBar}}%
  \xsbox{OrnamentBox}{%  
    \begin{tikzpicture}[inner sep=0pt, outer sep=0pt, x=\paperwidth,y=\paperheight]
      \useasboundingbox (0,0) rectangle (1,1);

      % necessary coordinates
      \coordinate (UR) at ($(1,1) + (-\xoffset,-\yoffset)$);
      \coordinate (UL) at ($(0,1) + (\xoffset,-\yoffset)$);
      \coordinate (LR) at ($(1,0) + (-\xoffset,\yoffset)$);
      \coordinate (LL) at ($(0,0) + (\xoffset,\yoffset)$);
      \coordinate (CL) at ($(0,0.5) + (\xoffset,0)$);
      \coordinate (CR) at ($(1,0.5) + (-\xoffset,0)$);

      % ornaments located at page corners
      \node[anchor=north west] (ULCorner) at (UL){\theOrnamentCorner};%
      \node[anchor=north west,xscale=-1] (URCorner) at (UR) {\theOrnamentCorner};%
      \node[anchor=north west, scale=-1] (LRCorner) at (LR){\theOrnamentCorner};%
      \node[anchor=north west,yscale=-1] (LLCorner) at (LL){\theOrnamentCorner};%

      % ornaments on the left and right sides
      \node [rotate=90,anchor=center] at (CL) {\theOrnamentBar};
      \node [rotate=90,anchor=east] at (ULCorner.south west) {\theLineSample\theLineSample};
      \node [rotate=90,anchor=east,xscale=-1] at (LLCorner.south west) {\theLineSample\theLineSample};

      \node [rotate=90,anchor=center,scale=-1] at (CR) {\theOrnamentBar};
      \node [rotate=90,anchor=east, yscale=-1] at (URCorner.south west) {\theLineSample\theLineSample};
      \node [rotate=90,anchor=east,  scale=-1] at (LRCorner.south west) {\theLineSample\theLineSample};

      % ornaments at top and bottom page edges
      \path (ULCorner.north east) to node {\theOrnamentBar} (URCorner.north east) {};
      \path (LRCorner.north east) to node [scale=-1] {\theOrnamentBar} (LLCorner.north east) {};
    \end{tikzpicture}%
  }%
}

% This adds the frame (a reference, actually) on every page.
\AddToShipoutPictureFG{\theOrnamentBox}%  

\begin{document}
% \lipsum[1,2] 
 \lipsum[1-5] 
% \lipsum[1-28] 
\end{document}

Answer 2

似乎适用于所有编译器的解决方案。这里其实真的不需要backgrounds。/eso-pic就atbegshi行。

\documentclass[a5paper,10pt,openany,oneside]{book}
\usepackage[object=vectorian]{pgfornament}
\usetikzlibrary{positioning,calc}
\usepackage{eso-pic}
\usepackage{lipsum}

\def\xoffset{0.6cm}
\def\yoffset{0.6cm}
\def\ornament{61}
\def\ornamentcolor{black}

%Command for inserting the frames
\AddToShipoutPictureBG{%
  \begin{tikzpicture}[remember picture, overlay, inner sep=0pt]
      %Necessary coordinates
      \coordinate (UR) at ($(current page.north east) + (-\xoffset,-\yoffset)$);
      \coordinate (UL) at ($(current page.north west) + (\xoffset,-\yoffset)$);
      \coordinate (LR) at ($(current page.south east) + (-\xoffset,\yoffset)$);
      \coordinate (LL) at ($(current page.south west) + (\xoffset,\yoffset)$);
      \coordinate (CL) at ($(current page.west) + (\xoffset,0)$);
      \coordinate (CR) at ($(current page.east) + (-\xoffset,0)$);

      %Ornaments located at the corners of the page
      \node[anchor=north west] (ULCorner) at (UL){%
        \pgfornament[width = 2cm,color = \ornamentcolor ]{\ornament}};%
      \node[anchor=north east] (URCorner) at (UR){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=v ]{\ornament}};%
      \node[anchor=south east] (LRCorner) at (LR){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=c ]{\ornament}};%
      \node[anchor=south west] (LLCorner) at (LL){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=h ]{\ornament}};%

      %Ornaments between the corners: Calculates the distance between the 2 upper corners and uses it for the width of the bar ornament.
      \path (CL) let \p1 = ($(URCorner.north west) - (ULCorner.north east)$)
       in node[anchor=center, rotate=90, inner sep=-3pt] (CLBar) at (CL){\pgfornament[width=\x1 ,color = \ornamentcolor]{88}};%
      \path (CR) let \p1 = ($(URCorner.north west) - (ULCorner.north east)$)
       in node[anchor=center, rotate=90, inner sep=0pt] (CRBar) at (CR){\pgfornament[width=\x1 ,color = \ornamentcolor]{88}};%
      \draw[line width=1.5pt,line cap=round,black]($(CLBar.east) + (0.8pt,0)$) to ($(ULCorner.south west) + (0.8pt,1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CRBar.east) + (0.8pt,-1pt)$) to ($(URCorner.south east) + (0.8pt,1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CLBar.west) + (0.8pt,0)$) to ($(LLCorner.north west) + (0.8pt,-1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CRBar.west) + (0.8pt,1)$) to ($(LRCorner.north east) + (0.8pt,-1pt)$){};

      %Ornaments between he corners: Top and bottom.
       \path[] (ULCorner.north east) to [ornament=88, color=black] (URCorner.north west) {};
       \path (LRCorner.south west) to [ornament=88,color=black] (LLCorner.south east) {};

  \end{tikzpicture}}

\begin{document}
 \lipsum[1-5]
\end{document}

我已经检查过，这在pdflatex、xelatex和 上都能正常工作lualatex。示例输出如下所示。它确实不是似乎可以正常工作latex -> dvi -> pdf，但是，这可能是 2018 年可以接受的事情。

旧答案。免责声明：我没有仔细阅读背景手册。快速搜索xelatex没有找到结果，但可能是我遗漏了一些基本的东西。你无论如何都要用叠加层来定位图片。无论你选择什么，它总是会出现在同一位置position。（这不是真的！有一些与编译器相关的问题，我在写这篇文章时并没有想到会存在。）

\documentclass[a5paper,10pt,openany,oneside]{book}
\usepackage[object=vectorian]{pgfornament}
\usetikzlibrary{positioning,calc}
\usepackage{background}
\usepackage{lipsum}

\def\xoffset{0.6cm}
\def\yoffset{0.6cm}
\def\ornament{61}
\def\ornamentcolor{black}

%Command for inserting the frames
\newcommand{\pageframe}{
  \begin{tikzpicture}[remember picture, overlay, inner sep=0pt]
      %Necessary coordinates
      \coordinate (UR) at ($(current page.north east) + (-\xoffset,-\yoffset)$);
      \coordinate (UL) at ($(current page.north west) + (\xoffset,-\yoffset)$);
      \coordinate (LR) at ($(current page.south east) + (-\xoffset,\yoffset)$);
      \coordinate (LL) at ($(current page.south west) + (\xoffset,\yoffset)$);
      \coordinate (CL) at ($(current page.west) + (\xoffset,0)$);
      \coordinate (CR) at ($(current page.east) + (-\xoffset,0)$);

      %Ornaments located at the corners of the page
      \node[anchor=north west] (ULCorner) at (UL){%
        \pgfornament[width = 2cm,color = \ornamentcolor ]{\ornament}};%
      \node[anchor=north east] (URCorner) at (UR){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=v ]{\ornament}};%
      \node[anchor=south east] (LRCorner) at (LR){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=c ]{\ornament}};%
      \node[anchor=south west] (LLCorner) at (LL){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=h ]{\ornament}};%

      %Ornaments between the corners: Calculates the distance between the 2 upper corners and uses it for the width of the bar ornament.
      \path (CL) let \p1 = ($(URCorner.north west) - (ULCorner.north east)$)
       in node[anchor=center, rotate=90, inner sep=-3pt] (CLBar) at (CL){\pgfornament[width=\x1 ,color = \ornamentcolor]{88}};%
      \path (CR) let \p1 = ($(URCorner.north west) - (ULCorner.north east)$)
       in node[anchor=center, rotate=90, inner sep=0pt] (CRBar) at (CR){\pgfornament[width=\x1 ,color = \ornamentcolor]{88}};%
      \draw[line width=1.5pt,line cap=round,black]($(CLBar.east) + (0.8pt,0)$) to ($(ULCorner.south west) + (0.8pt,1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CRBar.east) + (0.8pt,-1pt)$) to ($(URCorner.south east) + (0.8pt,1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CLBar.west) + (0.8pt,0)$) to ($(LLCorner.north west) + (0.8pt,-1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CRBar.west) + (0.8pt,1)$) to ($(LRCorner.north east) + (0.8pt,-1pt)$){};

      %Ornaments between he corners: Top and bottom.
       \path[] (ULCorner.north east) to [ornament=88, color=black] (URCorner.north west) {};
       \path (LRCorner.south west) to [ornament=88,color=black] (LLCorner.south east) {};

  \end{tikzpicture}}

\backgroundsetup{scale=1,color=black,opacity=1,contents=\pageframe, angle=0}

\begin{document}
 \lipsum[1-5]
\end{document}

如您所见，装饰物的位置非常漂亮。因为overlay使用绝对页面坐标的图片并不关心position您为它们分配的坐标。

附录：这似乎是目前比较罕见的情况之一，在这种情况下，使用哪种编译器很重要。为了简化问题，我从中删除了所有位置信息\backgroundsetup。

第一个令人惊讶的是，这angle似乎很重要。对我来说，这是非常令人惊讶。这个问题似乎与编译器无关。

接下来的惊喜是结果取决于编译器。如果我保留angle=0上面的内容，只要使用pdflatex或进行编译，代码就可以正常工作lualatex。

但是，如果我使用 进行编译xelatex，我会重现 Charlie 报告的问题。在这种情况下，查理的回答似乎是可行的方法。如果我用 latex 编译，然后将文件转换dvi为 pdf，则没有任何装饰。总之，我不认为这个问题已经完全解决了。但我想说，在这种情况下，切换到 可以eso-pic解决问题。

Answer 3

根据@Marmot的建议，我删除了覆盖层并记住了 tikzpicture 环境中的图片标志，将位置设置为当前位置.center，并将锚点也设置为中心。这在使用 XeLaTeX 编译时有效

\documentclass[a5paper,10pt,openany,oneside]{book}
\usepackage[object=vectorian]{pgfornament}
\usetikzlibrary{positioning,calc}
\usepackage{background}
\usepackage{lipsum}

\def\xoffset{0.6cm}
\def\yoffset{0.6cm}
\def\ornament{61}
\def\ornamentcolor{black}

%Command for inserting the frames
\newcommand{\pageframe}{

  \begin{tikzpicture}[inner sep=0pt]
      %Necessary coordinates
      \coordinate (UR) at ($(current page.north east) + (-\xoffset,-\yoffset)$);
      \coordinate (UL) at ($(current page.north west) + (\xoffset,-\yoffset)$);
      \coordinate (LR) at ($(current page.south east) + (-\xoffset,\yoffset)$);
      \coordinate (LL) at ($(current page.south west) + (\xoffset,\yoffset)$);
      \coordinate (CL) at ($(current page.west) + (\xoffset,0)$);
      \coordinate (CR) at ($(current page.east) + (-\xoffset,0)$);

      %Ornaments located at the corners of the page
      \node[anchor=north west] (ULCorner) at (UL){%
        \pgfornament[width = 2cm,color = \ornamentcolor ]{\ornament}};%
      \node[anchor=north east] (URCorner) at (UR){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=v ]{\ornament}};%
      \node[anchor=south east] (LRCorner) at (LR){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=c ]{\ornament}};%
      \node[anchor=south west] (LLCorner) at (LL){%
        \pgfornament[width = 2cm,color = \ornamentcolor, symmetry=h ]{\ornament}};%

      %Ornaments between the corners: Calculates the distance between the 2 upper corners and uses it for the width of the bar ornament.
      \path (CL) let \p1 = ($(URCorner.north west) - (ULCorner.north east)$)
       in node[anchor=center, rotate=90, inner sep=-3pt] (CLBar) at (CL){\pgfornament[width=\x1 ,color = \ornamentcolor]{88}};%
      \path (CR) let \p1 = ($(URCorner.north west) - (ULCorner.north east)$)
       in node[anchor=center, rotate=90, inner sep=0pt] (CRBar) at (CR){\pgfornament[width=\x1 ,color = \ornamentcolor]{88}};%
      \draw[line width=1.5pt,line cap=round,black]($(CLBar.east) + (0.8pt,0)$) to ($(ULCorner.south west) + (0.8pt,1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CRBar.east) + (0.8pt,-1pt)$) to ($(URCorner.south east) + (0.8pt,1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CLBar.west) + (0.8pt,0)$) to ($(LLCorner.north west) + (0.8pt,-1pt)$){};
      \draw[line width=1.5pt,line cap=round,black]($(CRBar.west) + (0.8pt,1)$) to ($(LRCorner.north east) + (0.8pt,-1pt)$){};



      %Ornaments between he corners: Top and bottom.
       \path[] (ULCorner.north east) to [ornament=88, color=black] (URCorner.north west) {};
       \path (LRCorner.south west) to [ornament=88,color=black] (LLCorner.south east) {};

  \end{tikzpicture}}

\backgroundsetup{scale=1,color=black,opacity=1,contents=\pageframe, angle=0,
position={current page.center},nodeanchor=center}


\begin{document}

 \lipsum[1-5]
\end{document}