Graphics, Figures & Tables ⇒ putting comma makes error in pgf

[ahmedlasheen]

Hello
when i am trying to put a comma in the label coordinate of the follwing code ,i want the label be for example (2,2) but the comma give me alot of errors so i put it
(2 2).here is the code .

Code: Select all

\begin{tikzpicture}
\draw[step=1cm] (1,1) grid (4,4);
\node at ( 2,2) [circle,draw=blue!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(2 2)$] {};
\node at ( 2,3) [circle,draw=blue!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(2 2)$] {};
\node at ( 3,3) [circle,draw=blue!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(3 3)$] {};
\node at ( 3,2) [circle,draw=blue!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(3 2)$] {};

\node at ( 1,1) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(1 1)$] {};
\node at ( 2,1) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(2 1)$] {};
\node at ( 3,1) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(3 1)$] {};
\node at ( 4,1) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(4 1)$] {};
\node at ( 4,2) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(4 2)$] {};
\node at ( 4,3) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(4 3)$] {};
\node at ( 4,4) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(4 4)$] {};
\node at ( 3,4) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(3 4)$] {};
\node at ( 2,4) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(2 4)$] {};
\node at ( 1,4) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(1 4)$] {};
\node at ( 1,3) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(1 3)$] {};
\node at ( 1,2) [circle,draw=red!90,fill=blue!10,inner sep=0pt,minimum size=2mm,label=80:\tiny $(1 2)$] {};
\end{tikzpicture}
\end{figure}

i have attached the log and tex and pdf files.
thanks in advance

[localghost]

Please get used to always providing a complete but minimal example. Otherwise I'm pessimistic about specific help when a problem becomes more complicated. Keep that in mind for the future so that further reminders will not be necessary.

In order not to confuse pgf/tikZ you have to group the coordinates you want to print with curly braces. See example below (with some minor enhancements).

Code: Select all

\documentclass{article}
\usepackage{tikz}

\begin{document}
  \begin{tikzpicture}[%
    font=\tiny,
    every node/.style={circle,inner sep=0pt,minimum size=2mm},
    blueborder/.style={draw=blue!90,fill=blue!10},
    redborder/.style={draw=red!90,fill=red!10}
  ]
    \draw (1,1) grid (4,4);
    \foreach \x/\y in {2/2,2/3,3/2,3/3}
      \node at (\x,\y) [blueborder,label=80:{(\x,\y)}] {};
    \foreach \x/\y in {1/1,1/2,1/3,1/4,2/1,2/4,3/1,3/4,4/1,4/2,4/3,4/4}
      \node at (\x,\y) [redborder,label=80:{(\x,\y)}] {};
  \end{tikzpicture}
\end{document}

Thorsten

[ahmedlasheen]

thanks alot, the code is working know ,and also thanks for the compact code for the grid .