packageName: Charts
description: Extra Datagrok viewers (Timelines, Chord, Sankey, Sunburst, Tree, Radar, Globe, Surface, Word Cloud, ...) built on ECharts, D3, and three.js
keywords:
  - viewer
  - chart
  - timelines
  - chord
  - sankey
  - sunburst
  - tree
  - radar
  - globe
  - surface plot
  - word cloud
  - group analysis
  - multi plot
  - hierarchy
  - flow
  - multivariate
  - sdtm
  - echarts
  - d3
  - three.js
  - visualization
overview: |
  Adds a suite of viewers on top of Datagrok's built-in set, built on
  ECharts, D3.js, and three.js (Globe).

  Adding a viewer: open a table, click the viewer gallery in the toolbox
  (or View > Add Viewer), and pick one. Viewers respond to filters and
  row selection the same way native viewers do.

  Hierarchy: Tree, Sunburst, Group Analysis.
  Flow and relationships: Chord, Sankey.
  Time: Timelines — SDTM-aware, auto-picks subject/start/end/term columns
  for SDTM datasets, type-based heuristics otherwise.
  Multivariate: Radar.
  Spatial and 3D: Globe, Surface Plot.
  Text: Word Cloud.
  Composite: Multi Plot.

  Demos: each viewer has its own demo under Top Menu > Demo > Visualization
  > General (Tree lives under Data Flow and Hierarchy). Each demo opens a
  sample dataset and adds the viewer preconfigured.
apiRef: src/package-api.ts
docsRef: ../../help/visualize/viewers/viewers.md