How to enforce the text filled in flowchart follow single line space?

Question

My document is in a doublespace environment using elsarticle template, that is the whole document is two double line space .

I searched the solutions, like setspace package. I used it as follows:

\usepackage{setspace}
\begin{singlespace}    
 my flowchart    
\end{singlespace}

The result is that the flowchart and following content are all single line space. In order to keep the content following the flowchart double line space, I do it as follows:

\usepackage{setspace}    
\begin{singlespace}    
 my flowchart    
\end{singlespace}    

\begin{doublespace}    
 following content    
\end{doublespace}

But it did not work. The results is the same as previous one.

Can anyone help me out? Any suggestion will be greatly appreciated!

Answer 1

You say that (a) you use elsarticle class and (b) that you enclosed the body of the text in a doublespace environment. I guess that you do not use \doublespacing in your preamble as the ruins layouts of titles. Anyway, you can get a single space region inside the double spaced body by simply using the singlespacing environment. In the code below the lipsum package and the \lipsum commands just produce some text for demonstration purposes:

\documentclass[preprint,12pt]{elsarticle}
\usepackage{amssymb}
\journal{Nuclear Physics B}
\usepackage{setspace}
\usepackage{lipsum}
\begin{document}

\begin{doublespace}
  \lipsum[1]
  \begin{singlespace}
    \lipsum[2]
  \end{singlespace}
  \lipsum[3]
\end{doublespace}
\end{document}

Essentially the same output (slightly less widely doublespaced) is produced from:

\documentclass[authoryear,preprint,review,12pt]{elsarticle}

\usepackage{amssymb}
\journal{Nuclear Physics B}
\usepackage{setspace}
\usepackage{lipsum}

\begin{document}
\lipsum[1]
\begin{singlespace}
  \lipsum[2]
\end{singlespace}
\lipsum[3]
\end{document}

Internally elsarticle does not use setspace but defines a baselinestretch parameter \@blstr to be 1.5 in the review style.