node-red-node-ui-vega

node-red-node-ui-vega
=====================

A Node-RED Dashboard widget node for declarative data visualization using Vega visualization grammar. It also support the Vega-lite specification.

!Vega Node Examples

Note: This node requires a live internet connection in order to load the required libraries via CDN.

Install
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Either use the Editor - Menu - Manage Palette - Install option, or run the following command in your Node-RED user directory (typically ~/.node-red) after installing Node-RED-dashboard.

npm install node-red-node-ui-vega

Note: This node uses APIs that require at least Node-RED 0.19 and Node-RED Dashboard 2.10.

Usage
-----

Vega is a visualization grammar and framework for visualizing data
developed by University of Washington Interactive Data Lab.
ui_vega node accepts Vega and Vega-Lite data visualization specification in JSON format.

Vega/Vega-Lite specification in JSON format can be specified on node settings menu or payload property of input message. If both parameters are set, payload property takes precedence.

Example
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There are several examples that you can import from the Node-RED editor menu:

Import > Examples > node-red-node-ui-vega