Newpage between tikzpictures

Question

I'm trying to draw in tikz.

The aim is to create a document with a first page with the title and other infos. Each of the other page is a wiremap a of type of cable.

I use python to generate the tex code. And I need to start a new page between each wiremap (between each tikzpicture).

So I tried to use a simple newpage, but MikTeX says to me this error:

! Missing \endgroup inserted.
<inserted text>
            \endgroup
l.12 \newpage

?

My TeX file is:

\documentclass[a4paper,class=article,border=0pt]{standalone}
\usepackage{tikz}
%
\begin{document}
%
\begin{tikzpicture}
\clip (0,0) rectangle (21,29.7);
\draw[red] (0,0) -- (21,29.7);
\draw[red] (1,0) -- (0,1);
\draw[blue] (0,0) rectangle (21,29.7);
\draw[green] (1,1) rectangle (20,28.7);
\end{tikzpicture}
\newpage
\begin{tikzpicture}
\clip (0,0) rectangle (21,29.7);
\draw[blue] (1,1) rectangle (20,28.7);
\end{tikzpicture}
%
\end{document}

Answer 1

I provide a simple method to control page breaks in the standalone class.

All pictures in the same page

As a MWE I take the following code, based on the question, where three pictures are generated in the same page.

\documentclass[a4paper,class=article,border=0pt]{standalone}
\usepackage{tikz}
\begin{document}
%
\begin{tikzpicture}
\clip (0,0) rectangle (21,29.7);
\draw[red] (0,0) -- (21,29.7);
\draw[red] (1,0) -- (0,1);
\draw[blue] (0,0) rectangle (21,29.7);
\draw[green] (1,1) rectangle (20,28.7);
\end{tikzpicture}
%
\begin{tikzpicture}
\clip (0,0) rectangle (21,29.7);
\draw[blue] (1,1) rectangle (20,28.7);
\end{tikzpicture}
%
\begin{tikzpicture}
\clip (0,0) rectangle (21,29.7);
\draw[red] (1,1) rectangle (20,28.7);
\end{tikzpicture}
%
\end{document}

Each picture in a different page

Taking @Ulrike Fischer's solution, which is just adding the option tikz to the document class, i.e., changing the line \documentclass[a4paper,class=article,border=0pt]{standalone} by \documentclass[a4paper,class=article,border=0pt,tikz]{standalone} each picture appears in a different page.

Total Control of Page Breaks

If we want to arbitrarily insert page breaks between the pictures. For example, to put one picture in the first page and two pictures together in the last page. We can generate a dummy environment, e.g., standalonepage and group the pictures that belong to the same page. As in the example before.

\documentclass[a4paper,class=article,border=0pt]{standalone}
\usepackage{tikz}
%
\newenvironment{standalonepage}{}{} %Dummy environment that contains pictures in the same page
\standaloneenv{standalonepage} %The dummy environment is make known to the stand alone class
\begin{document}

%First Page
\begin{standalonepage}
  \begin{tikzpicture}
    \clip (0,0) rectangle (21,29.7);
    \draw[red] (0,0) -- (21,29.7);
    \draw[red] (1,0) -- (0,1);
    \draw[blue] (0,0) rectangle (21,29.7);
    \draw[green] (1,1) rectangle (20,28.7);
  \end{tikzpicture}
\end{standalonepage}

%Second Page
\begin{standalonepage}
  \begin{tikzpicture}
    \clip (0,0) rectangle (21,29.7);
    \draw[blue] (1,1) rectangle (20,28.7);
  \end{tikzpicture}

  \begin{tikzpicture}
    \clip (0,0) rectangle (21,29.7);
    \draw[red] (1,1) rectangle (20,28.7);
  \end{tikzpicture}
\end{standalonepage}

\end{document}

Answer 2

An alternative solution for this kind of document could be incgraph. Its documentation abstract says:

incgraph provides tools for including graphics on full paper size. The graphics can be centered for a given paper format or the paper may be resized to the graphics dimensions. The main use case for the package incgraph is to transform one or many scans or taken pictures to a PDF document. It can also be applied for full paper size LaTeX created graphics. The package incgraph provides a tool box with basic macros and a convenience user interface which wraps the well-known includegraphics. Also, bookmarking is especially supported.

As an alternative to standalone in this particular case offers the advantage of having the whole document (title page and figures) in a unique .tex file.

As it's shown in following example, TikZ figures can be included and they keep it's own size or can be included into a formal page.

\documentclass[a4paper]{article}
\usepackage{tikz}
\usepackage{incgraph}
%
\title{Cable catalogue}
\author{Anonymous}

\begin{document}

\maketitle

%
\begin{inctext}
\begin{tikzpicture}
\draw[red] (0,0) -- (21,29.7);
\draw[red] (1,0) -- (0,1);
\draw[blue] (0,0) rectangle (21,29.7);
\draw[green] (1,1) rectangle (20,28.7);
\end{tikzpicture}
\end{inctext}

\begin{inctext}[currentpaper]
\begin{tikzpicture}
\draw[blue] (1,1) rectangle (5,8);
\end{tikzpicture}
\end{inctext}

\begin{inctext}[border=1cm]
\begin{tikzpicture}
\draw[blue] (1,1) rectangle (5,8);
\end{tikzpicture}
\end{inctext}

\begin{inctext}[border=3mm]
\begin{tikzpicture}
\draw[blue] circle (3cm);
\end{tikzpicture}
\end{inctext}

\incgraph{frog.jpg}
\end{document}

Answer 3

The following code simulates your case. Compile the following with pdflatex -shell-escape main.tex.

% main.tex
\documentclass{article}
\usepackage{filecontents}
\begin{filecontents*}{figure.tex}
\documentclass[tikz,multi]{standalone}

\begin{document}

\begin{tikzpicture}
\clip (0,0) rectangle (21,29.7);
\draw[red] (0,0) -- (21,29.7);
\draw[red] (1,0) -- (0,1);
\draw[blue] (0,0) rectangle (21,29.7);
\draw[green] (1,1) rectangle (20,28.7);
\end{tikzpicture}

\begin{tikzpicture}
\clip (0,0) rectangle (21,29.7);
\draw[blue] (1,1) rectangle (20,28.7);
\end{tikzpicture}

\end{document}
\end{filecontents*}

\usepackage{graphicx}
\immediate\write18{pdflatex figure}


\title{My title}
\author{I am}
\date{\today}

\newcommand{\Insert}[2][1]{\includegraphics[scale=#1,page=#2]{figure}\newpage}

\begin{document}
\maketitle

\Insert[0.5]{1}
\Insert[0.5]{2}
\end{document}