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Changelog

[3.0.0] - 2026-07-27

Full rewrite: migrated from R/Shiny to a FastAPI (Python) backend + Vite / TypeScript / Three.js frontend. Algorithms (layouts, clustering, topology) ported 1:1 via python-igraph.

Added

  • Satellite view — minimap overview of the scene (hidden layers excluded).
  • Command-pattern undo/redo — granular history for scene mutations.
  • Token-shared sessions — hand off a session to another app via ?session= URL (POST /api/external).
  • Export Image — button to export the scene as PNG.
  • Reproducible node scatter (seeded), 60 FPS render loop as default, redesigned UI (side-drawer panels).

Changed

  • Zoom to cursor — mouse-wheel zoom anchors at the pointer instead of the scene center.

Fixed

  • Undraggable layers when zoomed in — orthographic drag ray rejected planes sitting behind its origin; layers froze at high zoom despite hover working.

[2.0.0] - 2023-04-13

Initial public release — Arena3D, an R/Shiny + Three.js web app for interactive 3D visualization of multilayered networks.

  • Interactive 3D rendering of multilayer networks (Three.js via R/Shiny).
  • TSV network upload; layer / node / edge styling.
  • Layout algorithms, community clustering, and topology metrics on the graph.
  • Session import / export.

[1.0.0] - 2008-11-28

The now retired legacy Arena3D standalone desktop application written in Java.