[Tex/LaTex] How to increase arrow-head size in tkz-graph

arrowstikz-pgftkz-graph

How can I increase the size of the head of the arrows in a tkz-graph graph? This question is similar to Is it possible to change the size of an arrowhead in TikZ/PGF?, but requires an adaptation of the solution to tkz-graph specifically.

Best Answer

With \SetUpEdge you could adapt the answers given in the question you mention. For example:

\pgfarrowsdeclare{biggertip}{biggertip}{%
  \setlength{\arrowsize}{1pt}  
  \addtolength{\arrowsize}{.5\pgflinewidth}  
  \pgfarrowsrightextend{0}  
  \pgfarrowsleftextend{-5\arrowsize}  
}{%
  \setlength{\arrowsize}{1pt}  
  \addtolength{\arrowsize}{.5\pgflinewidth}  
  \pgfpathmoveto{\pgfpoint{-5\arrowsize}{4\arrowsize}}  
  \pgfpathlineto{\pgfpointorigin}  
  \pgfpathlineto{\pgfpoint{-5\arrowsize}{-4\arrowsize}}  
  \pgfusepathqstroke  
}  

\begin{tikzpicture}
  \Vertex{a}
  \Vertex[x=2,y=0]{b}
  \Vertex[x=4,y=0]{c}
  {\SetUpEdge[style={->,>=triangle 45}]
    \Edge(a)(b)}
  {\SetUpEdge[style={->,>=biggertip}]
    \Edge(b)(c)}
\end{tikzpicture}

enter image description here

Related Solutions

[Tex/LaTex] Change arrowhead in line style definition

You need to download the files

You can then load the new arrow tip definitions with

\usetikzlibrary{arrows.new}

which allows you to use the arrow head option.

The effect of which are only visible if you actually use the new arrow head tips. In your case, this would be -stealth new or >=stealth new (but it doesn’t make sense to use -> and set > in the same style as you could just as well write -stealth new).

[Tex/LaTex] Tikz: increase arrow head size

One option would be to scale it (and change the shorten value accordingly):

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{arrows, decorations.markings}

\tikzset{
vecArrow/.style={
  thick,
  decoration={markings,mark=at position
   1 with {\arrow[scale=2,thin]{open triangle 60}}},
  double distance=1.4pt, shorten >= 10.5pt,
  preaction = {decorate},
  postaction = {draw,line width=1.4pt, white,shorten >= 4.5pt}
  },
innerWhite/.style={
  semithick, 
  white,
  line width=1.4pt, 
  shorten >= 4.5pt
  }
}

\begin{document}

\begin{tikzpicture}[thick]
  \node[draw,rectangle] (a) {A};
  \node[inner sep=0,minimum size=0,right of=a] (k) {}; % invisible node
  \node[draw,rectangle,right of=k] (b) {B};
  \node[draw,rectangle,below of=a] (c) {C};

  % 1st pass: draw arrows
  \draw[vecArrow] (a) to (b);
  \draw[vecArrow] (k) |- (c);

  % 2nd pass: copy all from 1st pass, and replace vecArrow with innerWhite
  \draw[innerWhite] (a) to (b);
  \draw[innerWhite] (k) |- (c);

  % Note: If you have no branches, the 2nd pass is not needed
\end{tikzpicture}

\end{document}

enter image description here

I changed the old \tikzstyle to the more appropriate \tikzset syntax.

Best Answer

Related Solutions

[Tex/LaTex] Change arrowhead in line style definition

[Tex/LaTex] Tikz: increase arrow head size

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