[Tex/LaTex] TikZ – Remove space around nodes

tikz-pgf

I'm relatively new to TikZ and I drew the following graph. However, there is some space around the filled black node. Is there a way to have the lines actually connecting with the node?

EDIT: I'm not sure why it doesn't compile and show the graph in here? Maybe someone could please help me with this?

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[scale=0.8]
\node (1) at (0.4, 2.2) [circle,draw] {1};
\node (4) at (0.4, 0.6) [circle,draw] {4};
\node (3) at (2.6, 0.6) [circle,draw] {3};
\node (7) at (1.5,1.5) {};
\node (2) at (2.6, 2.2) [circle,draw] {2};

\fill (7) circle (2.5pt);

\draw[-] (1) to (7);
\draw[-] (4) to (7);
\draw[-] (3) to (7);
\draw[-] (2) to (7);

\end{tikzpicture}
\end{document}

Best Answer

You can control the space added with the inner sep key:

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[scale=0.8]
\node (1) at (0.4, 2.2) [circle,draw] {1};
\node (4) at (0.4, 0.6) [circle,draw] {4};
\node (3) at (2.6, 0.6) [circle,draw] {3};
\node[inner sep=0pt] (7) at (1.5,1.5) {};
\node (2) at (2.6, 2.2) [circle,draw] {2};

\fill (7) circle (2.5pt);

\draw[-] (1) to (7);
\draw[-] (4) to (7);
\draw[-] (3) to (7);
\draw[-] (2) to (7);

\end{tikzpicture}
\end{document}

Related Solutions

[Tex/LaTex] Numerical conditional within tikz keys

I am definitely unfamiliar with both beamer and tikz (do not quite get what the \only are supposed to do) but perhaps this could go in the direction you want:

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{chains}
\newcounter{count}

% helper macro:
\long\def\GobToSemiColon #1;{}

\newcommand\myPicture{
\begin{tikzpicture}
  \begin{scope}[start chain = going below]
  \ifnum\value{count}<1 \expandafter\GobToSemiColon\fi
  \ifnum\value{count}>3 \expandafter\GobToSemiColon\fi
  \node[draw, rectangle, on chain] {display only when counter is between
    1 and 3};

  \ifnum\value{count}>-1 \expandafter\GobToSemiColon\fi
  \node[draw, rectangle, on chain] {display only when counter is
    negative}; 

  \ifnum\value{count}<100 \expandafter\GobToSemiColon\fi
  \ifnum\value{count}>200 \expandafter\GobToSemiColon\fi  
  \node[draw, rectangle, on chain] {display only if counter is between
    100 and 200};

  \ifnum\value{count}<3 \expandafter\GobToSemiColon\fi
  \ifnum\value{count}>20 \expandafter\GobToSemiColon\fi
  \node[draw, circle, on chain] {only when counter is in the range 3 to 20};
  \end{scope}
\end{tikzpicture}
}

\begin{document}
\begin{frame}
\only{\setcounter{count}{-3}\myPicture}
\only{\setcounter{count}{105}\myPicture}
\only{\setcounter{count}{39}\myPicture}
\only{\setcounter{count}{2}\myPicture}
\only{\setcounter{count}{5}\myPicture}
\end{frame}
\end{document}

beamer

[Tex/LaTex] Overlay edge between two tikz nodes

You need remember picture for the tikzpicture connecting the nodes:

\documentclass{beamer}

\usepackage{tikz}
\usetikzlibrary{positioning}

\begin{document}

\begin{frame}{Tikz Test}


\begin{tikzpicture}[remember picture]
\draw node [text width=60mm,fill=black!5] (n1) 
  {Multi\\line \begin{tikzpicture}[remember picture]
\node[fill=black,text width=2mm](start){};\end{tikzpicture} \\text};
\draw node [text width=60mm,fill=black!5,below=of n1] {Another\\multi\\line \begin{tikzpicture}[remember picture]\node[fill=black,text width=2mm](end){};\end{tikzpicture}\\text};
    \end{tikzpicture}
\begin{tikzpicture}[remember picture,overlay]
        \draw (start) -- (end);
\end{tikzpicture}
\end{frame}

\end{document}

enter image description here

By the way, is best not to nest tikzpictures.

Best Answer

Related Solutions

[Tex/LaTex] Numerical conditional within tikz keys

[Tex/LaTex] Overlay edge between two tikz nodes

Related Question