# how to draw discrete time diagram in tikz [on hold]

Could anyone help me to draw the following in tikz?

1. A straight line.
2. On the line segment, I need to point out 0,1,2, \dots, k, k+1 in equal distance.
3. Between 0 and 1 and in general k, k+1 segment, I need to highlight, 1,2,3, \dots, t.

## put on hold as off-topic by Raaja, JouleV, Stefan Pinnow, Sebastiano, Milo2 days ago

• This question does not fall within the scope of TeX, LaTeX or related typesetting systems as defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

• I'm voting to close this question as off-topic because it is a do-it-for-mequestions. – Raaja Mar 16 at 6:35

## 1 Answer

\documentclass[tikz,border=3.14mm]{standalone}
\begin{document}
\begin{tikzpicture}
\pgfmathtruncatemacro{\L}{10} %<- length of the line
\pgfmathtruncatemacro{\kmax}{6}
\pgfmathtruncatemacro{\tmax}{7}
\draw (0,0) -- (\L,0);
\foreach \k in {0,...,\kmax}
{\draw (\L*\k/\kmax,0.2) -- (\L*\k/\kmax,-0.2) \ifnum\k<2 node[below,text
height=1.5ex]{$\k$}\fi
\ifnum\k=\numexpr\kmax-1 node[below,text
height=1.5ex]{$k$}\fi
\ifnum\k=\kmax node[below,text
height=1.5ex]{$k+1$}\fi;
\ifnum\k<\kmax
\foreach \t in {1,2,\tmax}
{\draw ({\L*\k/\kmax+\L*(\t/(\tmax+1))/\kmax},0.1)
-- ({\L*\k/\kmax+\L*(\t/(\tmax+1))/\kmax},-0.1);}
\fi}
\end{tikzpicture}
\end{document}


Or

\documentclass[tikz,border=3.14mm]{standalone}
\begin{document}
\begin{tikzpicture}
\pgfmathtruncatemacro{\L}{10} %<- length of the line
\pgfmathtruncatemacro{\kmax}{6}
\pgfmathtruncatemacro{\tmax}{7}
\draw (0,0) -- (\L,0);
\foreach \k in {0,...,\kmax}
{\draw (\L*\k/\kmax,0.2) -- (\L*\k/\kmax,-0.2) \ifnum\k<2 node[below,text
height=1.5ex]{$\k$}\fi
\ifnum\k=\numexpr\kmax-1 node[below,text
height=1.5ex]{$k$}\fi
\ifnum\k=\kmax node[below,text
height=1.5ex]{$k+1$}\fi;
\ifnum\k<\kmax
\foreach \t in {1,2,...,\tmax}
{\draw ({\L*\k/\kmax+\L*(\t/(\tmax+1))/\kmax},-0.1)
-- ({\L*\k/\kmax+\L*(\t/(\tmax+1))/\kmax},0.1)
node[above] {$\ifnum\t=\tmax t\else\ifnum\t<4 \t\else .\fi\fi$} ;}
\fi}
\end{tikzpicture}
\end{document}


• @Markov I made these changes but I am not sure I interpreted your requests correctly. If not, please consider adding a sketch of what you wish to achieve. – marmot Mar 15 at 22:09
• @Markov The sticks are controlled by the loop \foreach \t in {1,2,\tmax}. If you change it to \foreach \t in {1,2,...,\tmax} then it draws all of them. I added such a possibility. I do not know what the typical ranges of \k and \t are, but I hope this gives you reasonable results in your use-case examples. – marmot Mar 16 at 14:03