This project has been merged into ts-graphviz.

graphviz

Graphviz library for Deno🦕

Runtime independent APIs and specifications are compatible with the ts-graphviz package.

Usages

Draw diagrams

renderDot function outputs the dot command execution result to the specified path by supplying diagram object.

renderDot function requires allow-write, allow-run permission, and dot command.

import * as path from "https://deno.land/std@0.67.0/path/mod.ts";
import {
  attribute,
  digraph,
  renderDot,
} from "https://deno.land/x/graphviz/mod.ts";

const G = digraph("G", (g) => {
  const a = g.node("aa");
  const b = g.node("bb");
  const c = g.node("cc");
  g.edge([a, b, c], {
    [attribute.color]: "red",
  });
  g.subgraph("A", (A) => {
    const Aa = A.node("Aaa", {
      [attribute.color]: "pink",
    });
    const Ab = A.node("Abb", {
      [attribute.color]: "violet",
    });
    const Ac = A.node("Acc");
    A.edge([Aa.port({ compass: "c" }), Ab, Ac, "E"], {
      [attribute.color]: "red",
    });
  });
});

const __dirname = new URL(".", import.meta.url).pathname;
await renderDot(G, path.resolve(__dirname, "./example.svg"), {
  format: "svg",
});

Parse DOT Language

The https://deno.land/x/graphviz/perser/mod.ts provide parse function that parses a string written in dot language and convert it to a model.

The return value is a Graph or Digraph that inherits from RootCluster.

import { parse } from "https://deno.land/x/graphviz/perser/mod.ts";

const G = parse(`
  digraph G {
    a -> b;
  }
`);

This is equivalent to the code below.

import { digraph } from "https://deno.land/x/graphviz/mod.ts";

const G = digraph("G", (g) => {
  g.edge(["a", "b"]);
});

The "https://deno.land/x/graphviz/mod.ts" module also provides other features such as handling AST.

This module is a translation of @ts-graphviz/parser to work with the Deno runtime.

Please refer to the repository for details of the provided API.

License

This software is released under the MIT License, see LICENSE.

License

ts-graphviz/deno

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