adderbyte / perspective

Streaming pivot visualization via WebAssembly

Perspective is an interactive visualization component for large, real-time datasets. Originally developed at J.P. Morgan, Perspective makes it simple to build user-configurable analytics entirely in the browser, or in concert with Python and/or JupyterLab. Use it to create reports, dashboards, notebooks and applications, with static data or streaming updates via Apache Arrow. As a library, Perspective provides both:

• A fast, memory efficient streaming query engine, written in C++ and compiled for both WebAssembly and Python, with read/write/stream/virtual support for Apache Arrow.

• A framework-agnostic User Interface Custom Element and Jupyterlab Widget, via WebWorker (WebAssembly) or virtually via WebSocket (Python/Node), and a suite of Datagrid and D3FC Chart plugins.

Examples

Movies	Superstore	Maps Airports
NYPD CCRB	Olympics	Custom Styles
Editable	Maps Elevation	Streaming
IEX Cloud	NYC Citibike	JupyterLab Plugin
CSV	Magic	Maps Citibike

Documentation

• Project Site
• Table
• View
• Javascript User Guide
• Python User Guide
• Data Binding
• Developer Guide
• Perspective API
• Perspective Viewer API
• Perspective Python API

Community

• perspective-viewer-maps OpenLayers/OpenStreetMap plugin
• Scott Logic / Perspective Plugin API - How to build a new plugin