How to Change vertical distance between lines?

Question

I'am writing on my thesis and I want to change the vertical distance between the lines that i write. I tried it with doublespacing and setspace but nothing changed, can you help my guys? In my MWE the distance between the lines is like the size what i want to have, but in my whole file the distance is shorter. I don't know where my mistake is? This is my code:

\documentclass[a4paper, 12pt,fleqn]{article} 
 \usepackage[ngerman]{babel}
  \usepackage[utf8]{inputenc}
 \usepackage{graphicx}

 %\documentclass[border=10pt,tikz]{standalone} %für den Baum
  \usepackage[rm={tabular, lining},sf={tabular, lining},tt={monowidth,       
   tabular, lining}]{cfr-lm}
   \renewcommand*\familydefault{\sfdefault}
  \usepackage[edges]{forest}
 \usetikzlibrary{fit}
  \usepackage{natbib}
\usepackage[fleqn]{amsmath}
 \allowdisplaybreaks
 \usepackage{bm}%macht mathezeichen fett
 \usepackage{nccmath}
\usepackage[scaled=.92]{helvet}
 \usepackage{courier}
  \usepackage[left=30mm,right=40mm,top=25mm,bottom=20mm, includeheadfoot,      
 centering]{geometry}
 \usepackage{parskip}
 \usepackage[onehalfspacing]{setspace}
 %\usepackage{setspace}
 \usepackage{fancyhdr}
 \usepackage[center]{caption2}
 \usepackage[flushmargin,bottom,hang]{footmisc}
 \usepackage{acronym}
 \usepackage[noxspace,final]{listofsymbols}
\usepackage{longtable}
 \usepackage{pgfgantt}
\usepackage{array}
 \usepackage{hyperref} % hyperref für Fußnoten usw
  \hypersetup{
     colorlinks=true,
     linkcolor=black,
      filecolor=black,
      citecolor = black,      
     urlcolor=black,
      }
\usepackage{lmodern} %Schriftart ändern
  \renewcommand*\familydefault{\sfdefault} %Schriftart geändert
 \usepackage{pgfplots} %von philipp
  \usepackage[figuresright]{rotating}
  \usepackage{verbatim}
  \usepackage{float}
 \usepackage{parskip}


 \pagestyle{myheadings}
\renewcommand{\baselinestretch}{1.3}
\renewcommand{\arraystretch}{1.0}
  \setlength{\parindent}{0pt}
 \setlength{\parskip}{0cm}
 \setlength{\footnotemargin}{1em}
  \opensymdef



   \setlength{\mathindent}{0pt}
   \begin{document}


  Nachdem das Hybrid-Flexible-Flow Shop-Problem mit Lotstreaming Option in      
   Kapitel xxx in seinen theoretischen Grundzügen erläutert wurde, befasst  
   sich das folgende Kapitel mit der mathematischen Modellierung des Hybrid-
     Flexibel-Flow-Shop-Problem mit Lotstreaming Option als gemischt-
     ganzzahliges Problem.


       \end{document} code here

Hre a epicture how it is in my thesis

How can i change the vertical distance between my lines? \setspace or one and \doublespacing? Nothing works....

Answer 1

You are overriding the onehalfspacing (or doublespacing) option to setspace by doing

\renewcommand{\baselinestretch}{1.3}

Remove it.

On the other hand, your preamble is quite a mess. You load:

1. cfr-lm
2. helvet
3. lmodern

in this order and then say \renewcommand{\familydefault}{\sfdefault}; this way, only the last of those three packages is used and the other two do nothing at all.

It's quite strange to load parskip and then set the \parskip to zero.

The caption2 package is obsolete and should not be used: caption is the right one. Also fancyhdr is loaded, but not employed.

I have grouped the packages in a more proper way and commented some of them. The centering option to geometry contradicts the other options, so I commented it.

\documentclass[a4paper, 12pt,fleqn]{article} 

\usepackage[
  left=30mm,
  right=40mm,
  top=25mm,
  bottom=20mm,
  includeheadfoot,      
%  centering, %%% <--- what for?
]{geometry}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}

\usepackage[
  rm={tabular,lining},
  sf={tabular,lining},
  tt={monowidth,tabular,lining},
]{cfr-lm}
%\usepackage{lmodern} %Schriftart ändern
%\usepackage[scaled=.92]{helvet}
%\usepackage{courier}

\usepackage[fleqn]{amsmath}
\usepackage{bm}%macht mathezeichen fett
\usepackage{nccmath}

\usepackage[onehalfspacing]{setspace}
%\usepackage{parskip}
%\usepackage{fancyhdr}
\usepackage{caption}
\usepackage[flushmargin,bottom,hang]{footmisc}

\usepackage{natbib}

\usepackage{longtable}
\usepackage{array}
\usepackage{graphicx}
\usepackage[figuresright]{rotating}
\usepackage{verbatim}
\usepackage{float}

\usepackage{pgfplots} %von philipp
\usepackage[edges]{forest}
\usetikzlibrary{fit}

\usepackage{acronym}
\usepackage[noxspace,final]{listofsymbols}
\usepackage{pgfgantt}

\usepackage{hyperref} % hyperref für Fußnoten usw
\hypersetup{
  colorlinks=true,
  linkcolor=black,
  filecolor=black,
  citecolor = black,      
  urlcolor=black,
}

\pagestyle{myheadings}

%%% Make my thesis as hard to read as possible
\renewcommand*\familydefault{\sfdefault}
\allowdisplaybreaks
\setlength{\parindent}{0pt}
\setlength{\mathindent}{0pt}
\setlength{\footnotemargin}{1em}
\opensymdef


\begin{document}

\section{Formale Modellbeschreibung}

Nachdem das Hybrid-Flexible-Flow Shop-Problem mit Lotstreaming Option in      
Kapitel xxx in seinen theoretischen Grundzügen erläutert wurde, befasst  
sich das folgende Kapitel mit der mathematischen Modellierung des 
Hybrid-Flexibel-Flow-Shop-Problem mit Lotstreaming Option als 
gemischt-ganzzahliges Problem.

\end{document}

This is the output with \usepackage[doublespacing]{setspace}

Answer 2

Replace the \renewcommand{\baselinestretch}{1.3} with \renewcommand{\baselinestretch}{1}