treemap visualization

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334212.0.15 years ago5 years agoMinified + gzip package size for webtreemap in KB


New 2017-Oct-16: master is now webtreemap v2, a complete rewrite with
bug fixes, more features, and a different (simpler) API. If you're looking for the old webtreemap, see the v1 branch.
A simple treemap implementation using web technologies (DOM nodes, CSS styling and transitions) rather than a big canvas/svg/plugin. It's usable as a library as part of a larger web app, but it also includes a command-line app that dumps a self-contained HTML file that displays a map.
Play with a demo.



The data format is a tree of Node, where each node is an object in the shape described at the top of tree.ts.
<script src='webtreemap.js'></script>
// Container must have its own width/height.
const container = document.getElementById('myContainer');
// See typings for full API definition.
webtreemap.render(container, data, options);

Command line

$ webtreemap -o output_file < my_data

Command line data format is space-separated lines of "size path", where size is a number and path is a '/'-delimited path. This is exactly the output produced by du, so this works:
$ du -ab some_path | webtreemap -o out.html

But note that there's nothing file-system-specific about the data format -- it just uses slash as a nesting delimiter.


Web piece

Use npm run dev to bring up file watchers that keep the demo JS bundle up to date. Then load demo/demo.html in a browser. The file generated by npm run dev is also used by the command line app.

Command line app

Use tsc -w to keep the npm-compatible JS up to date, then run e.g.:
$ du -ab node_modules/ | node build/cli.js --title 'node_modules usage' -o demo.html