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@thi.ng/dot

1.2.20 • Public • Published

dot

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This project is part of the @thi.ng/umbrella monorepo.

About

Graphviz document abstraction as vanilla JS objects and serialization to DOT format.

Provides several interfaces covering a large subset of GraphViz options and functions to serialize whole graphs (incl. subgraphs), nodes or edges. Supports both directed and undirected graphs.

Please see the GraphViz DOT guide for further details.

Status

BETA - possibly breaking changes forthcoming

Search or submit any issues for this package

Installation

yarn add @thi.ng/dot
// ES module
<script type="module" src="https://unpkg.com/@thi.ng/dot?module" crossorigin></script>
 
// UMD
<script src="https://unpkg.com/@thi.ng/dot/lib/index.umd.js" crossorigin></script>

Package sizes (gzipped, pre-treeshake): ESM: 768 bytes / CJS: 829 bytes / UMD: 897 bytes

Dependencies

API

Generated API docs

example graph

The source code of this example is also available in /test/example.ts.

import { serializeGraph } from "@thi.ng/dot";
 
// node type style presets
const terminal = {
    color: "black",
    fontcolor: "white",
};
 
// operator nodes use "Mrecord" shape
// with input and output port declarations
const operator = {
    fillcolor: "yellow",
    shape: "Mrecord",
    ins: { 0: "a", 1: "b" },
    outs: { "out": "out" }
};
 
serializeGraph({
    directed: true, // default
    // graph attributes
    attribs: {
        rankdir: "LR",
        fontname: "Inconsolata",
        fontsize: 9,
        fontcolor: "gray",
        label: "Generated with @thi.ng/dot",
        labeljust: "l",
        labelloc: "b",
        // node defaults
        node: {
            style: "filled",
            fontname: "Inconsolata",
            fontsize: 11
        },
        // edge defaults
        edge: {
            arrowsize: 0.75,
            fontname: "Inconsolata",
            fontsize: 9
        }
    },
    // graph nodes (the keys are used as node IDs)
    // use spread operator to inject style presets
    nodes: {
        x:   { ...terminal, label: "x (12)" },
        y:   { ...terminal, label: "y (23)" },
        res: { ...terminal, label: "result (8050)", peripheries: 2 },
        op1: { ...operator, fillcolor: "green", label: "op1\n(+)" },
        op2: { ...operator, label: "op2\n(*)" },
    },
    // graph edges (w/ optional ports & extra attribs)
    edges: [
        { src: "x", dest: "op1", destPort: 1 },
        { src: "y", dest: "op1", destPort: 0 },
        { src: "y", dest: "op2", destPort: 0, label: "xform", color: "blue" },
        { src: "op1", srcPort: "out", dest: "op2", destPort: 1 },
        { src: "op2", srcPort: "out", dest: "res"},
    ]
});

Resulting output:

digraph g {
rankdir="LR";
node[style="filled", fontname="Inconsolata", fontsize="11"];
edge[arrowsize="0.75", fontname="Inconsolata", fontsize="9"];
"x"[color="black", fontcolor="white", label="x (12)"];
"y"[color="black", fontcolor="white", label="y (23)"];
"op1"[fillcolor="yellow", shape=Mrecord, label="{ <0> a | <1> b } | op1\n(+) | { <out> out }"];
"op2"[fillcolor="yellow", shape=Mrecord, label="{ <0> a | <1> b } | op2\n(*) | { <out> out }"];
"res"[color="black", fontcolor="white", label="res (805)", peripheries="2"];
"x" -> "op1":"1";
"y" -> "op1":"0";
"op1":"out" -> "op2":"1";
"y" -> "op2":"0"[label="xform", color="blue"];
"op2":"out" -> "res";
}

Authors

Karsten Schmidt

License

© 2018 - 2020 Karsten Schmidt // Apache Software License 2.0

Install

npm i @thi.ng/dot

DownloadsWeekly Downloads

279

Version

1.2.20

License

Apache-2.0

Unpacked Size

43 kB

Total Files

14

Last publish

Collaborators

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