[Tex/LaTex] column width expands page after using landscape, minipage & twocolumn

landscapetwo-columnwidth

I am writing a two column report: portrait oriented page. For certain pages I used landscape orientation. In this page a figure takes whole width of the page (29cm). Under this figure I put a two column text. The next page should be normal portrait format and two columns but the columns are as wide as in the landscape page which is much wider than the columns in the portrait page and the columns expands the page. How can I set the column widths back to the normal width: portrait columns instead of landscape columns?

In codes: 

    \documentclass[11pt,twocolumn]{article}
    \usepackage{fancyhdr,graphicx,subfigure,amsmath,hyperref,float,url,multirow,color,
    colortbl,lastpage,totcount,rotating,pdflscape,tabularx,eurosym}
    \usepackage[latin1]{inputenc}
    \usepackage[left=1.2cm,right=1.2cm,top=2cm,bottom=1.8cm]{geometry}
    \setlength{\columnsep}{0.5cm}%between columns
    \graphicspath{{./fig/}}\regtotcounter{page}

    \pagestyle{fancy}%header
    \setlength\headsep{0.5cm}\setlength\topskip{0cm}
    \hypersetup{colorlinks=true, linkcolor=blue,urlcolor=blue}

    \begin{document}
    \title{something}\author{someone}
    %\pagestyle{empty} %No headings for the first pages.
    \headheight=14.5pt%\maketitle
    \lhead{\scriptsize\textit{\leftmark: \rightmark}}
\rhead{\scriptsize\textit{ \thepage/\total{page}}}
    \lfoot{\scriptsize\textit{\today}}
\cfoot{\scriptsize\textit{\copyright society}}
\rfoot{\scriptsize \textit{My Report}}
    %\begin{Indent}{1.7cm}\begin{IndentR}{1.7cm}%1column
    \setlength{\parindent}{0.6cm} \setlength{\parskip}{0.2cm}
    \newcommand{\chapter}[1]{\section{#1}}%report=>article

    Portrait oriented two column text  
    Portrait oriented two column text  
    Portrait oriented two column text  
    Portrait oriented two column text  
    Portrait oriented two column text  

        \begin{landscape}
 here comes the figure width 27cm
        \begin{minipage}{\columnwidth}
        \twocolumn 
    Landscape oriented two column text
    Landscape oriented two column text
    Landscape oriented two column text
    Landscape oriented two column text
    Landscape oriented two column text
\end{minipage}                                                                  
        \end{landscape}

        %Next page should have normal portrait
% columns instead of landscape columns but it is not.

        \section{Bla Bla bla bla}

        Bla bla blaBla bla blaBla bla blaBla 
bla blaBla bla blaBla bla blaBla bla bla
      \end{document}

Best Answer

enter image description here

You can to use \rotatebox and multicols rather than landscape and \twocolumn.

 \documentclass[11pt,twocolumn]{article}
    \usepackage{fancyhdr,graphicx,subfigure,amsmath,hyperref,float,url,multirow,color,
    colortbl,lastpage,totcount,rotating,pdflscape,tabularx,eurosym,multicol}
    \usepackage[latin1]{inputenc}
    \usepackage[left=1.2cm,right=1.2cm,top=2cm,bottom=1.8cm]{geometry}
    \setlength{\columnsep}{0.5cm}%between columns
    \graphicspath{{./fig/}}\regtotcounter{page}

    \pagestyle{fancy}%header
    \setlength\headsep{0.5cm}\setlength\topskip{0cm}
    \hypersetup{colorlinks=true, linkcolor=blue,urlcolor=blue}

    \begin{document}
    \title{something}\author{someone}
    %\pagestyle{empty} %No headings for the first pages.
    \headheight=14.5pt%\maketitle
    \lhead{\scriptsize\textit{\leftmark: \rightmark}}
\rhead{\scriptsize\textit{ \thepage/\total{page}}}
    \lfoot{\scriptsize\textit{\today}}
\cfoot{\scriptsize\textit{\copyright society}}
\rfoot{\scriptsize \textit{My Report}}
    %\begin{Indent}{1.7cm}\begin{IndentR}{1.7cm}%1column
    \setlength{\parindent}{0.6cm} \setlength{\parskip}{0.2cm}
    \newcommand{\chapter}[1]{\section{#1}}%report=>article

    Portrait oriented two column text  
    Portrait oriented two column text  
    Portrait oriented two column text  
    Portrait oriented two column text  
    Portrait oriented two column text  

\clearpage
\onecolumn
\noindent\rotatebox{90}{%
\begin{minipage}{\textheight}
\begin{multicols}{2}
    Landscape oriented two column text    Landscape oriented two column text
    Landscape oriented two column text    Landscape oriented two column text
    Landscape oriented two column text    Landscape oriented two column text
    Landscape oriented two column text    Landscape oriented two column text
    Landscape oriented two column text    Landscape oriented two column text
    Landscape oriented two column text    Landscape oriented two column text
\end{multicols}
\end{minipage}%
}%
\clearpage
\twocolumn

        %Next page should have normal portrait
% columns instead of landscape columns but it is not.

        \section{Bla Bla bla bla}

        Bla bla blaBla bla blaBla bla blaBla 
bla blaBla bla blaBla bla blaBla bla bla
      \end{document}
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