Graphviz DOT

Graphviz DOT is an actively used text markup language created in 2007. DOT is a plain text graph description language. DOT graphs are typically files with the file extension gv or dot. The extension gv is preferred to avoid confusion with the extension dot used by early (pre-2007) versions of Microsoft Word. Read more on Wikipedia...

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• Graphviz DOT ranks in the top 20% of languages
• the Graphviz DOT wikipedia page
• Graphviz DOT first appeared in 2007
• file extensions for Graphviz DOT include dot and gv
• See also: javascript, java, python, google-cloud, actionscript, svg
• I have 44 facts about Graphviz DOT. what would you like to know? email me and let me know how I can help.

Example code from the web:

 // The graph name and the semicolons are optional
graph graphname {
    a -- b -- c;
    b -- d;
}

Example code from Linguist:

/* 
  Huffman Tree DOT graph.

  DOT Reference :  http://www.graphviz.org/doc/info/lang.html
                   http://en.wikipedia.org/wiki/DOT_language
  Timestamp     :  1415989074 
  Phrase        :  'OH GOD WHY IS LINGUIST SO ANAL ABOUT THIS STUFF'

  Generated on http://huffman.ooz.ie/
*/

digraph G {
    edge [label=0];
    graph [ranksep=0];
    T [shape=record, label="{{T|4}|000}"];
    S [shape=record, label="{{S|5}|001}"];
    SPACE [shape=record, label="{{SPACE|9}|01}"];
    A [shape=record, label="{{A|3}|1000}"];
    H [shape=record, label="{{H|3}|1001}"];
    U [shape=record, label="{{U|3}|1010}"];
    L [shape=record, label="{{L|2}|10110}"];
    N [shape=record, label="{{N|2}|10111}"];
    I [shape=record, label="{{I|4}|1100}"];
    O [shape=record, label="{{O|4}|1101}"];
    G [shape=record, label="{{G|2}|11100}"];
    F [shape=record, label="{{F|2}|11101}"];
    GF [label=4];
    W [shape=record, label="{{W|1}|111100}"];
    Y [shape=record, label="{{Y|1}|111101}"];
    B [shape=record, label="{{B|1}|111110}"];
    D [shape=record, label="{{D|1}|111111}"];
    BD [label=2];
    WYBD [label=4];
    GFWYBD [label=8];
    47 -> 18 -> 9 -> T;
    29 -> 13 -> 6 -> A;
    7 -> U;
    4 -> L;
    16 -> 8 -> I;
    GFWYBD -> GF -> G;
    WYBD -> 2 -> W;
    BD -> B;9 -> S [label=1];
    18 -> SPACE [label=1];
    6 -> H [label=1];
    13 -> 7 -> 4 -> N [label=1];
    8 -> O [label=1];
    GF -> F [label=1];
    2 -> Y [label=1];
    47 -> 29 -> 16 -> GFWYBD -> WYBD -> BD -> D [label=1];
}

Example code from Wikipedia:

digraph g {
	node [shape=plaintext];
	A1 -> B1;
	A2 -> B2;
	A3 -> B3;
	
	A1 -> A2 [label=f];
	A2 -> A3 [label=g];
	B2 -> B3 [label="g'"];
	B1 -> B3 [label="(g o f)'" tailport=s headport=s];

	{ rank=same; A1 A2 A3 }
	{ rank=same; B1 B2 B3 } 
}

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Last updated November 16th, 2019