A streaming data visualization engine for Javascript, Perspective makes it simple to build real-time & user configurable analytics entirely in the browser.
Features
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A fast, memory efficient streaming pivot engine written principally in C++ and compiled to WebAssembly via the emscripten compiler.
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An embeddable, framework-agnostic configuration UI, based on Web Components, and a WebWorker engine host for responsiveness at high frequency.
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A suite of simple visualization plugins for some common Javascript libraries such as d3fc and Hypergrid.
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Integration with Jupyterlab.
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Runtimes for the Browser and Node.js.
Examples
| Superstore | A static superstore.arrow demo. |
| Linked Superstore | An example of <perspective-viewer>s linked through click events. |
| Dataset Explorer | A configurable dataset performance tester. |
| Fractal | <perspective-viewer> fractal playground. |
| Olympics | An example of sharing a single perspective.table among multiple <perspective-viewer>s. |
| Streaming | A streaming random data demo. |
| Streaming Stock Trades | A streaming financial data demo. |
| CSV | Upload a CSV of your own. |
| NYC Citibike | An example of a join on two real-time datasets, from the NYC Citibike feed. |
| Real-time cryptocurrency charting | An example that uses the coinbased web socket feed to plot orders in real-time |
| Financial Data from IEX | An example that uses the IEX cloud api to build a financial dashboard. |