Vue.D3.Sunburst provides a reusable vue sunburst charts component relying on D3.js.

Sunburst is the main component of this library and display sunburst chart based on data props using children property for hierarchy, name property for naming and size property for arcs size.

Sunburst component provides three optional slots:

legend and top slots are intended to be used to display additional information such as legend
default slot is intended to receive renderless component providing behavior: for example, highlighting on mouse over or zoom on click

Components providing standard and reusable features are provided.

Features

Reactive to data changes
Responsive to size changes
Customizable with slot or exposed methods and events
Zoomable

Install

npm i vue-d3-sunburst

Usage

<sunburst :data="data">

  <!-- Add behaviors -->
  <template slot-scope="{ on, actions }">
    <highlightOnHover v-bind="{ on, actions }"/>
    <zoomOnClick v-bind="{ on, actions }"/>
  </template>

  <!-- Add information to be displayed on top the graph -->
  <nodeInfoDisplayer slot="top" slot-scope="{ nodes }" :current="nodes.mouseOver" :root="nodes.root" description="of visits begin with this sequence of pages" />

  <!-- Add bottom legend -->
  <breadcrumbTrail slot="legend" slot-scope="{ nodes, colorGetter, width }" :current="nodes.mouseOver" :root="nodes.root" :colorGetter="colorGetter" :from="nodes.clicked" :width="width" />

</sunburst>

import {
  breadcrumbTrail,
  highlightOnHover,
  nodeInfoDisplayer,
  sunburst,
  zoomOnClick
} from 'vue-d3-sunburst';
import "vue-d3-sunburst/dist/vue-d3-sunburst.css";

export default {
  components: {
    breadcrumbTrail,
    highlightOnHover,
    nodeInfoDisplayer,
    sunburst,
    zoomOnClick
  },
  data() {
    return { 
      tree:  {
      "name": "flare",
        "children": [
          {
            "name": "analytics",
            "children": [
              {
                "name": "cluster",
                "children": [
                  { "name": "AgglomerativeCluster", "size": 3938 },
                  { "name": "CommunityStructure", "size": 3812 },
                  { "name": "HierarchicalCluster", "size": 6714 },
                  { "name": "MergeEdge", "size": 743 }
                ]
              },
              {
                "name": "graph",
                "children": [
                  { "name": "BetweennessCentrality", "size": 3534 },
                  { "name": "LinkDistance", "size": 5731 },
                  { "name": "MaxFlowMinCut", "size": 7840 },
                  { "name": "ShortestPaths", "size": 5914 },
                  { "name": "SpanningTree", "size": 3416 }
                ]
              },
              {
                "name": "optimization",
                "children": [
                  { "name": "AspectRatioBanker", "size": 7074 }
                ]
              }
            ]
          }
        ]
      }
    }
  }
}

Gotchas

This component is responsive and will adjust to resizing. In order for this to work properly, you must define for this component or its parent wether:

a height or a max-height
or a width or a max-width.

Failing to do so may result in a component whose size that will keep increasing.

API

sunburst

slots

legend Use this slot to add information on top or bottom of the graph
top Use this slot to add information on top of the graph
default Use this slot to add behaviors to the sunburst

props

data Object (optional)

Sunburst data where children property is a array containing children.
color-scheme String (optional) default: provided by injected defaultSchemeColor with a fall back to schemeAccent

D3 color scheme to be used.
color-scale Function (optional) default: undefined

D3 scale of colors (d3-scale). If specified, it overwrites the color-scheme props
get-category-for-color Function (optional) default: 'useNameForColor'

Function used to map an item and its color. (nodeD3: Object) => category: Number | String By default use the node name
min-angle-displayed Number (optional) default: 0.005

Minimal arc angle to be displayed (in radian).
arc-identification Function (optional) default: 'recursiveName'

Function used to identify an arc, will be used during graph updates. (nodeD3: Object) => id: String
in-animation-duration Number (optional) default: 100

Duration for in animation in milliseconds
out-animation-duration Number (optional) default: 1000

Duration for out animation in milliseconds

events

mouseOverNode

Fired when mouse is over a sunburst node.

arguments:
- value Object - {node, sunburst} The corresponding node and sunburst component
clickNode

Fired when sunburst node is clicked.

arguments:
- value Object - {node, sunburst} The corresponding node and sunburst component

methods

highlightPath(node, opacity)

Highlight the arc path leading to a given node.

parameters:
- node Object - the D3 node to highlight
- opacity Number - opacity of the none highlighted nodes, default to 0.3
zoomToNode(node)

Zoom to a given node.

parameters:
- node Object - the D3 node to zoom to.
resetHighlight()

Reset the highlighted path

Other optional components provided as slot implementation

Besides sunburst component, Vue.D3.Sunburst provides additional optional components that can be used out of the box as slot implementations. There are two kinds of additional components:

the "renderfull" components provide visual additional visual information on the nodes. They can be used as legend or top slots.
the renderless components provide predefined behaviors for the sunburst components. They can be used as default slots. It is possible to combine behavior using a root template slot element as in the example.

"Renderfull" components

breadcrumbTrail

Breadcrumb trail component displaying path between root node and current node. Can be used as a legend slot of sunburst component.

props

root Object (optional)

Root node
current Object (optional)

Current node
from Object (optional)

Reference node, parents nodes of the current will have an opacity below 1
color-getter Function (required)

ColorGetter exposed by sunburst
width Number (optional)

Sunburst width
order Number (optional) default: 1

Css Order. If 1 the slot is displayed below the sunburst, if 0 the slot is displayed on top the sunburst
item-width Number (optional) default: 80

Bread crumb item width
item-height Number (optional) default: 30

Bread crumb item height
spacing Number (optional) default: 3

Spacing between breadcrumb items
tail-width Number (optional) default: 10

With of tailing element

nodeInfoDisplayer

Component that display the percentage value of the current node relative to root. Can be used as a "top" slot of sunburst component.

props

root Object (optional)

Root node
current Object (optional)

Current node
clicked Object (optional)

Clicked node
description String (required)

Text to be displayed
show-all-number Boolean (optional) default: true

Show fraction format of size if true

computed properties

percentage

dependencies: current, root, current, base
displayPercentage

dependencies: percentage
show

dependencies: percentage

Behavioral

These components can be used as a default slot of the sunburst component which received as attributes:

on which is the $on method of the sunburst component:
actions which is an object containing the attributes:
- highlightPath: function that takes a node and highlight the path going from the root to the given node
- zoomToNode: function that takes a node and zoom to the corresponding node
- resetHighlight: function that resets the highlighting

Typical usage:

   this.on("clickNode", ({node}) =>{
      this.actions.zoomToNode(node);
    });

zoomOnClick

Renderless component providing the zoom on click behavior. Can be used as a default slot of sunburst component.

props

on Function (required)

Sunburst event listener. Same as component $on method.
actions Object (required)

Sunburst actions. Typically provided by sunburst default slot.

highlightOnHover

Renderless component providing path highlighting on mouse over behavior. Can be used as a default slot of sunburst component.

props

on Function (required)

Sunburst event listener. Same as component $on method.
actions Object (required)

Sunburst nodes. Typically provided by sunburst default slot.