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DEPRECATED: Chart.js Hierarchical Scale Plugin

Target Discovery Platform NPM Package CircleCI

Chart.js module for adding a new categorical scale which mimics a hierarchical tree.

hierarchy

DEPRECATION Information

Please note that this project has been archived and is no longer being maintained. There is an active fork https://github.com/sgratzl/chartjs-plugin-hierarchical and we will also contribute our future changes to it.

Install

npm install --save chart.js chartjs-scale-hierarchical

Usage

see Samples on Github

or at this CodePen

Scale

a new scale type hierarchical.

Styling

The hierarchical axis scale has the following styling options

interface IHierarchicalScaleOptions {
  /**
   * ratio by which the distance between two elements shrinks the higher the level of the tree is. i.e. two two level bars have a distance of 1. two nested one just 0.75
   * @default 0.75
   */
  levelPercentage: number;
  /**
   * padding of the first collapse to the start of the x-axis
   * @default 25
   */
  padding: number;
  /**
   * position of the hierarchy label in expanded levels, null to disable
   * @default 'below'
   */
  hierarchyLabelPosition: 'below'|'above'|null;
  /**
   * positon of the hierarchy group label relative to the its children
   * @default 'between-first-and-second'
   */
  hierarchyGroupLabelPosition: 'center'|'first'|'last'|'between-first-and-second',

  /**
   * object of attributes that should be managed and extacted from the tree datastrutures such as `backgroundColor` for coloring individual bars
   * the object conainst the key and default value
   * @default {}
   */
  attributes: {[attribute: string]: any};
}

Data structure

interface ILabelNode {
  /**
   * label
   */
  label: string;
  /**
   * defines whether this node is collapsed (false) or expanded (true) or focussed ('focus')
   * @default false
   */
  expand?: boolean | 'focus';
  /**
   * list of children
   */
  children?: ISubLabelNode[];
}

/**
 * a label entry can be a single string or a complex ILabelNode
 */
declare type ISubLabelNode = ILabelNode | string;

interface IValueNode<T> {
  /**
   * the actual value of this node
   */
  value: T;
  /**
   * list of children
   */
  children?: ISubValueNode<T>[];
}

/**
 * a value entry can be a single value or a complex IValueNode
 */
declare type ISubValueNode<T> = IValueNode<T> | T;

Building

npm install
npm run build

This repository is part of the Target Discovery Platform (TDP). For tutorials, API docs, and more information about the build and deployment process, see the documentation page.