tkz-graph — for graph theory

Release 2.30c 2026/11/02

Description

The package tkz-graph.sty is a collection of some useful macros if you want to draw manually a graph of the graph theory. The kind of graphs that I will present, are sometimes called combinatorial graphs to distinguish them from the graphs of functions. The macros are designed to give math teachers (and students) easy access at the programmation of drawing graphs with TikZ. I therefore hope that my packages provide ideal tools for teachers wanting to offer their students fine documents of maths.

With LuaLaTeX, two options go further (they are optional: without them the package is unchanged and works with pdfLaTeX):

• lua: computations on the graph drawn in each tikzpicture (tkz-graph and tkz-berge graphs): order, size, degrees, shortest path (Dijkstra, with the table of the steps), coloring (Welsh-Powell), connectivity, Eulerian paths and cycles, powers of the adjacency matrix. The results can be drawn (path, colors) or written in the text.
• 3d (prototype): graphs in space. The 3D module of tkz-elements computes the projections and the hidden parts (polyhedra, sphere, hypercube...), tkz-graph draws the vertices and the edges with its styles. The option 3d includes the option lua.

License

This work may be distributed and/or modified under the conditions of the LaTeX Project Public License, version 1.3c or (at your option) any later version. See the files LICENSE and lppl-1-3c.txt.

This work has the LPPL maintenance status "maintained". The Current Maintainer of this work is Alain Matthes.

Requirements

The package compiles with utf8, pdflatex and lualatex, loads and depends on updated versions of:

• tikz

Since version 2.20c, xkeyval is no longer needed: the keys use pgfkeys, which is part of TikZ.

The options lua and 3d need LuaLaTeX (with pdfLaTeX they give an error and are ignored). The option 3d also needs tkz-elements 6.10c (2026/11/01) or later.

Installation

The package tkz-graph is present in TeXLive and MiKTeX, use the package manager to install.

You can experiment with the tkz-graph package by placing all of the distribution files in the directory containing your current tex file.

How to use it

To use the package tkz-graph, place the following line in the preamble of your LaTeX document:

\usepackage{tkz-graph}

With LuaLaTeX:

\usepackage[lua]{tkz-graph}   % computations on the graphs
\usepackage[3d]{tkz-graph}    % graphs in space (and computations)

The order of tkz-graph, tkz-berge and tkz-elements in the preamble does not matter.

Documentation

Documentation for tkz-graph is available on CTAN.

Examples

All examples given in documentation will be stored on CTAN as standalone files, ready for compilation.

Other examples, in french, are on my site: http://altermundus.fr

History

• 2.2 (2026/10/07) keys with pgfkeys instead of xkeyval, short names installed only in the pictures, prefixed names (\tkzVertex...), option noshortnames, new styles with \tkzDefGraphStyle.
• 2.30c (2026/11/02) options lua (computations on the graphs) and 3d (graphs in space with tkz-elements), LuaLaTeX only.

The full list of changes is in CHANGELOG.md.

Author

Alain Matthes, 5 rue de Valence, Paris 75005, al (dot) ma (at) mac (dot) com