Release 1.3.0 (8 Dec 2022)

• Reverted to invoking menu by passing (a clicked) node. More handy in IRL situations where you might want to reference the invoker in the menu item's callback.

Release 1.2.0 (7 Dec 2022)

• Fixed browser not replicating fill-opacity on inherited url(#...) references

Release 1.1.0 (7 Dec 2022)

• Added css class for label selection
• Fixed a class name bug

Release 1.0.11 (3 March 2020)

• Added settings for maxRadius and nudgeTolerance
• Replaced parameter n ({x,y}) with mousept ([x,y]) as returned by d3.mouse().
• The callback called by invoked menu items now obtains the selected node as parameter

Release 1.0.10

• IE11 compatibility: graceful menu coloring if no svg gradients support
• IE11 compatilibity: fixed regexp to recognise space as transform parameter delimiter (along with comma)
• You'll need a polyfill (such as es6-promise)

Release 1.0.8

• Added support for then-able promises (see demo) if _children is a promise, d3-sunburst-menu will add a loading indicator until the promise is resolved.

D3 Sunburst Menu

A d3js multilevel circular (pie) menu, quite undocumented at the moment. Here's a demo

Pie menus are a graphical user interface for mouse gestures. This particular implementation is traversed through nudging the edge and holding still (upon which the menu will traverse after a threshold of 0.3s).

Description

• Visualise any tree structure as a traversable, circular partition menu
• Traverse and select nodes by nudging the edge
• Each leaf node should have a function callback() {}, invoked upon selection.
• Automatic gradients and curved labels, although if a level contains more than 10 children, it's recommended to add ["text-align"] = "radiate" to those children, causing the labels to emancipate from the center.

sunburst_menu returns an object with a redraw function, so that the partition can be altered (in my case waiting for several REST services to return menu data) and then updated through a call to redraw().

##Installation $ npm install d3-sunburst-menu

##Inclusion Using webpack, in your entry.js file: var d3_sunburst_menu = require('d3-sunburst-menu');

Initialize by: var menucontroller = d3_sunburst_menu(tree, node, svg_container);

Don't like front tooling like webpack?

<script> var module = {}; </script>
<script src="local/path/to/d3-sunburst-menu.js" type="text/javascript" charset="utf-8"></script>
<script>var menucontroller = module.exports(tree, node, svg_container);</script>

Arguments:

• tree is a d3 partition tree with a BIG NOTE: "children" arrays must be named "_children" (with a preceding underscore). This in order to allow for a menu instance to be redrawn with new nodes. (Fixable, although not my top priority.)
• mousept is an array of (svg) coordinates (as obtained by d3.mouse()) saying where to position the center of the menu.
• svg_container – the d3 selection that will host the menu (as obtained by d3.select).

Redraw by: treecontroller.redraw();

Remove by: treecontroller.remove();

Settings

The first few lines of d3-sunburst-menu.js offers a number of settings:

var radius = _radius = 140;
var hue = d3.scale.category10(); // if node parents don't specify a fill attribute (i.e. a color)
var backSize = 0.1; // back button size as percent of full circle
var currentArc, currentNode = tree; // start traversal at root level
var idleTime = 300; // time (ms) between edge nudge and traversal
var padAngle = 0.01;
var dropshadow = false; // true = performance killer
var cornerRadius = 4; // 4 is neat but causes transition flickering if root has exactly two children
var loaderDuration = 4000; // duration of loading arcs in ms
var menu_level_scope = 2; // number of menu levels to visualise together
var maxRadius = 190; // max size of menu
var nudgeTolerance = 4000; // how deep into the menu item the mouse needs to travel before traversal/selection takes place



@author Christian Lagerkvist [@lgrkvst, git@o-o.se]
todo:
 Add icon support
 Fix leaf text styles (curved text demands some restrictions... There is a radiating text style in the source code, although somewhat neglected lately)
 Move svg attributes to css
 Add tests
 Refactoring?