How to include graphviz graphs in github README
Latest commit df591f0 Jan 9, 2017 @TLmaK0 committed on GitHub Merge pull request #20 from foliolin/patch-3
Use https if possible
Failed to load latest commit information. Use https if possible Jan 7, 2017


How to include graphviz graphs in github

Only need to include image markdown tag with the url followed by your description graph in DOT syntax, UMLGraph, PlantUML or SVG :

Alt text

![Alt text](
  digraph G {
    aize ="4,4";
    main [shape=box];
    main -> parse [weight=8];
    parse -> execute;
    main -> init [style=dotted];
    main -> cleanup;
    execute -> { make_string; printf};
    init -> make_string;
    edge [color=red];
    main -> printf [style=bold,label="100 times"];
    make_string [label="make a string"];
    node [shape=box,style=filled,color=".7 .3 1.0"];
    execute -> compare;

This allow to include your graphs in the README, and still redeable in normal text editor.

SVG output it's ready. Only need to replace by and by

Alt text

New. The indirect way.

You can use indirect way to refer a source file as graph description. Alt text

Use this sintax: ![Alt text](<custom_mark>?<url_source_url_encoded>). And use html comments <!--- --> to hide the source.

![Alt text](
object Object01
object Object02
object Object03
object Object04
object Object05
object Object06
object Object07
object Object08

Object01 <|-- Object02
Object03 *-- Object04
Object05 o-- "4" Object06
Object07 .. Object08 : some labels

Because limitations of the url you can use in direct way (not in indirect way) markdown, you should use the Converter to see more complex graphs:

Alt text

![Alt text](
*Structural Things
*@opt commentname
*@note Notes can
*be extended to
*span multiple lines
class Structural{}
*@opt all
*@note Class
class Counter extends Structural {
        static public int counter;
        public int getCounter%28%29;
*@opt shape activeclass
*@opt all
*@note Active Class
class RunningCounter extends Counter{}

A sequence diagram. Note that you need to include ; in each new line:

Alt text

![Alt text](
actor User;
participant "First Class" as A;
participant "Second Class" as B;
participant "Last Class" as C;
User -> A: DoWork;
activate A;
A -> B: Create Request;
activate B;
B -> C: DoWork;
activate C;
C --> B: WorkDone;
destroy C;
B --> A: Request Created;
deactivate B;
A --> User: Done;
deactivate A;

An activity diagram. Note that you need to include ; in each new line:

Alt text

![Alt text](
%28*%29 --> if "Some Test" then;
  -->[true] "activity 1";
  if "" then;
    -> "activity 3" as a3;
    if "Other test" then;
      -left-> "activity 5";
      --> "activity 6";
  ->[false] "activity 2";
a3 --> if "last test" then;
  --> "activity 7";
  -> "activity 8";

Now also suports SVG in JSON format:

Alt text

![Alt text](
{"svg": {
        "@height": "450",
        "@width": "450",
        "path": [
            {"@id":"lineAB", "@d": "M 100 350 l 150 -300", "@stroke":"red"},
            {"@id":"lineBC", "@d": "M 250 50 l 150 300", "@stroke":"red"},
            {"@d":"M 100 350 q 150 -300 300 0", "@stroke":"blue", "@fill":"none"}
        "g": [
            {"@stroke":"black", "circle":[  
                {"@id":"pointA", "@cx":"100", "@cy":"350", "@r":"3"},
                {"@id":"pointB", "@cx":"250", "@cy":"50", "@r":"3"},
                {"@id":"pointC", "@cx":"400", "@cy":"350", "@r":"3"}
            {"text": [
                {"@x":"100", "@y":"350", "@dx":"-30", "$":"A"},
                {"@x":"250", "@y":"50", "@dy":"-10", "$":"B"},
                {"@x":"400", "@y":"350", "@dx":"30", "$":"C"}