¿Alguien podría arreglar este código tikz?

Question

\documentclass[11pt, twosides]{book}
\usepackage[a4paper, top=.5cm]{geometry}
\usepackage[myheadings]{fullpage}
\usepackage{fancyhdr}
\usepackage{lastpage}
\usepackage{graphicx, wrapfig, subcaption, setspace}
\usepackage{mathpazo}
\usepackage[T1]{fontenc}
\usepackage[font=small, labelfont=bf]{caption}
\usepackage[protrusion=true, expansion=true]{microtype}
\usepackage{sectsty}
\usepackage{url, lipsum}
\usepackage{etoolbox}
\usepackage[explicit]{titlesec}
\usepackage{epigraph}
\usepackage{tikz}
\usepackage{tikzpagenodes}
\titleformat{\chapter}[display]
  {\normalfont\huge}
  {}
  {20pt}
  {%
  \begin{tikzpicture}[remember picture,overlay]
\fill[top color=green, bottom color=blue] 
(16,-23) rectangle (18.5,7);
\node[
    anchor= east,
    xshift=1cm,
    text width=\textwidth] 
    at ([yshift=5pt]titlerect.east) {\fontsize{30}{36}\sffamily\selectfont#1};
\node[
    anchor= east,
    inner xsep=3cm,
    outer sep=0pt,
    font=\color{blue}]%,
    at ([yshift=.5cm]current page.east|-titlerect.east)
     {\fontsize{80}{86}\bfseries\thechapter};
\node[
    anchor= east,
    xshift=11.5cm,
        yshift=-11cm,
    text width=\textwidth] 
    at ([yshift=5pt]titlerect.east) {\fontsize{30}{36}\scshape\selectfont\rotatebox{90}{\color{white}#1}};
  \end{tikzpicture}%
}
\titleformat{name=\chapter,numberless}[display]
  {\normalfont\huge}
  {}
  {20pt}
  {%
  \begin{tikzpicture}[remember picture,overlay]
    \fill[top color=green, bottom color=blue] 
    (16,-25) rectangle (18.5,7);
  \node[
   anchor=west,
    rectangle,
    minimum height=4cm,
    text width=\paperwidth,
    xshift=-\the\dimexpr\oddsidemargin+1in\relax,
    outer sep=0pt] (titlerect) {};
  \node[
    anchor=south west,
    xshift=6cm,
        yshift=2cm,
    text width=\textwidth] 
   at (titlerect.south west) {\sffamily\Huge#1};
    \node[
    anchor= east,
    xshift=11.5cm,
        yshift=-11cm,
    text width=\textwidth] 
    at ([yshift=5pt]titlerect.east) {\fontsize{30}{36}\scshape\selectfont\rotatebox{90}{\color{white}#1}};
  \end{tikzpicture}%
  }[]
\titlespacing*{\chapter}
  {0pt}{-20pt}{60pt}
\titlespacing*{\chapter}
  {0pt}{-20pt}{60pt}
\titleformat{\section}[display] 
{\bfseries\normalsize}
{}
{5pt}
{\color{blue}\thesection~~ #1}
\titleformat{name=\section, numberless}[display]
{\bfseries\normalsize}
{}
{5pt}
{#1}

\titleformat{\subsection}[display]
{\itshape\normalsize}
{}
{5pt}
{\color{blue}\thesection~~ #1}

\fancypagestyle{plain}
{
   \fancyhf{}
   \fancyfoot{}
   \renewcommand{\headrulewidth}{0 mm}
}

\title{Title}
\author{Author}
\date{}
\textwidth=13cm
\begin{document}

\maketitle

\chapter{Random}

\section{Lipsum}

\lipsum[2]

\subsection{Subsection}

\lipsum[1]
\end{document}

Answer 1

Parece que se supone que el nodo titlereces el rectángulo creado con el \fillcomando inicial. Podemos reemplazar esto con un nodo usando eltikz fitbiblioteca y los nodos de página detikzpagenodespara solucionar el problema.

El siguiente código ahora se compila sin errores para brindar el resultado deseado. Por supuesto, inicialmente, el trabajo duro se hacía en el puesto.https://tex.stackexchange.com/a/374634/134144. Dicho esto, he racionalizado el código, he hecho un mejor uso detikzpagenodes, hizo que las versiones numeradas e innumerables fueran consistentes y eliminó parte del código que pensé que era innecesario. Una vez hecho esto, el código produce:

Aquí está el código actualizado:

\documentclass[11pt, twosides]{book}
\usepackage[a4paper, top=.5cm]{geometry}
\usepackage[myheadings]{fullpage}
\usepackage{fancyhdr}
\usepackage{lastpage}
\usepackage{graphicx, wrapfig, subcaption, setspace}
\usepackage{mathpazo}
\usepackage[T1]{fontenc}
\usepackage[font=small, labelfont=bf]{caption}
\usepackage[protrusion=true, expansion=true]{microtype}
\usepackage{sectsty}
\usepackage{url, lipsum}
\usepackage{etoolbox}
\usepackage[explicit]{titlesec}
\usepackage{epigraph}
\usepackage{tikz}
\usetikzlibrary{fit}
\usepackage{tikzpagenodes}
\titleformat{name=\chapter}[display]
  {\normalfont\huge}
  {}
  {20pt}
  {%
  \begin{tikzpicture}[remember picture,overlay]
    \coordinate (SE) at ([xshift=-50]current page.south east);
    \node[top color=green, bottom color=blue, 
        fit=(current page.north east)(SE)](titlerect){};
    \node[font=\fontsize{30}{36}\sffamily\selectfont] 
        at (current page text area.north){#1};
    \node[xshift=-25, font=\fontsize{80}{86}\bfseries\color{blue}]
        at (current page text area.north east-|titlerect.west)
        {\thechapter};
    \node[xshift=25, 
          font=\fontsize{30}{36}\scshape\selectfont\color{white}]
       at (current page.center-|titlerect.west) {\rotatebox{90}{#1}};
 \end{tikzpicture}%
}
\titleformat{name=\chapter,numberless}[display]
  {\normalfont\huge}
  {}
  {20pt}
  {%
  \begin{tikzpicture}[remember picture,overlay]
    \node[top color=green, bottom color=blue, 
        fit=(current page.north east)(SE)](titlerect){};
    \node[font=\fontsize{30}{36}\sffamily\selectfont] 
       at (current page text area.north){#1};
    \node[xshift=25, 
       font=\fontsize{30}{36}\scshape\selectfont\color{white}]
       at (current page.center-|titlerect.west) {\rotatebox{90}{#1}};
  \end{tikzpicture}%
}
\titlespacing*{\chapter}{0pt}{-20pt}{60pt}
\titleformat{\section}[display]
{\bfseries\normalsize}
{}
{5pt}
{\color{blue}\thesection~~ #1}
\titleformat{name=\section, numberless}[display]
{\bfseries\normalsize}
{}
{5pt}
{#1}

\titleformat{\subsection}[display]
{\itshape\normalsize}
{}
{5pt}
{\color{blue}\thesection~~ #1}

\fancypagestyle{plain}
{
   \fancyhf{}
   \fancyfoot{}
   \renewcommand{\headrulewidth}{0 mm}
}

\title{Title}
\author{Author}
\date{}
\begin{document}

\chapter{Random}

\section{Lipsum}

\lipsum[2]

\subsection{Subsection}

\lipsum[1]

\chapter*{Random}

\section{Lipsum}

\lipsum[2]

\subsection{Subsection}

\lipsum[1]

\end{document}