vertical rule between columns containing tikzpicture

Question

I'd like to draw an uninterrupted vertical rule between two columns with one column containing a tikz-picture. I have tried two approaches using the parcolumns package. In the first approach I draw the vertical rule with vrule. This makes the tikz-picture appear on the next page and not in the specified column

\documentclass[10pt]{article}
\usepackage{color}
\usepackage{graphicx}
\usepackage[right=2cm]{geometry}
\usepackage[export]{adjustbox}
\usepackage{tikz}
\usepackage{parcolumns}
\usepackage{xcolor}
\usepackage{linegoal}

\begin{document} 


\begin{parcolumns}[colwidths={1=.4\textwidth,2=0.1\textwidth}]{3}
\colchunk{

 \begin{minipage}{\linewidth}
 \begin{tikzpicture}
 \node[inner xsep=0pt,text width=\linewidth, top color=blue,bottom color=blue!10]
 {\parbox[t]{\linewidth}{\raggedright \hspace{0.6cm}\\  \raggedright  \LARGE \textbf{This is the top.\\}\vspace{8cm} \small \raggedright  \hspace{0.5cm} This is the bottom.\\}}; 
\end{tikzpicture}
\end{minipage}
  }

\colchunk{
\begin{minipage}[t]{\linewidth}
\vrule  height \textheight
\end{minipage}
  }

\colchunk{

  }
\end{parcolumns}
\end{document}

In the second approach I make use of the rulebetween option of the parcolumns package. There is a clearly visible break in the rule at the top border of the tikz-picture.

\documentclass[10pt]{article}
\usepackage{color}
\usepackage{graphicx}
\usepackage[export]{adjustbox}
\usepackage{tikz}
\usepackage{parcolumns}
\usepackage{xcolor}
\usepackage{linegoal}



\begin{document} 

\begin{parcolumns}[colwidths={1=.4\textwidth},rulebetween=true]{2}
\colchunk{

\begin{minipage}{\linewidth}
\begin{tikzpicture}
\node[inner xsep=0pt,text width=0.9\linewidth, top color=blue,bottom color=blue!10]
{\parbox[t]{\linewidth}{\raggedright \hspace{0.6cm}\\  \raggedright \LARGE \textbf{This is the top.\\}\vspace{8cm} \small \raggedright  \hspace{0.5cm} This is the bottom.\\}}; 
 \end{tikzpicture}
 \end{minipage}
   }

 \colchunk{

  }
\end{parcolumns}

\end{document}

I would appreciate any help with either approach.

Answer 1

\documentclass[10pt,twocolumn]{article}
\setlength\columnseprule{2pt}
\usepackage{color}
\usepackage{graphicx}
\usepackage{tikz}
\usepackage{xcolor}




\begin{document} 

\noindent
\begin{tikzpicture}
\node[inner xsep=0pt,text width=\linewidth, top color=blue,bottom color=blue!10]
{\parbox[t][\dimexpr\textheight-7pt]{\linewidth}{\raggedright \hspace{0.6cm}
 \LARGE \textbf{This is the top.}\par\vspace{\fill}
 \small \hspace{0.5cm} This is the bottom.\par}}; 
 \end{tikzpicture}


\end{document}

Answer 2

Although the question is not very clear. This answer shows how to place a tikzpicture beside a text paragraph with a tcolorbox. Both elements are separated by a vertical solid line. Left and right parts width can be fixed with real dimensions or proportionally. This solution will serve for non breakable boxes.

\documentclass[10pt]{article}
\usepackage{tikz}
\usepackage[most]{tcolorbox}
\usepackage{lipsum}

\begin{document} 

\lipsum[2]

\begin{tcolorbox}[enhanced, 
tikz upper, sidebyside,
righthand width=.5\linewidth, 
segmentation style={solid},
frame hidden,
boxsep=0pt,
colback=white,
right=0pt,
]
\path[fill=yellow,draw=yellow!75!red]
(0,0) circle (1cm);
\fill[red] (45:5mm) circle (1mm);
\fill[red] (135:5mm) circle (1mm);
\draw[line width=1mm,red]
(215:5mm) arc (215:325:5mm);
\tcblower
\lipsum[2]
\end{tcolorbox}

\end{document}