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A Visualization Grammar | Vega
Vega is a visualization grammar, a declarative language for creating, saving, and sharing interactive visualization designs. With Vega, you can describe the visual appearance and interactive behavior of a visualization in a JSON format, and generate web-based views using Canvas or SVG.

Version 3.1.0
Vega provides basic building blocks for a wide variety of visualization designs: data loading and transformation, scales, map projections, axes, legends, and graphical marks such as rectangles, lines, plotting symbols, etc. Interaction techniques can be specified using reactive signals that dynamically modify a visualization in response to input event streams.

A Vega specification defines an interactive visualization in a JSON format. Specifications are parsed by Vega’s JavaScript runtime to generate both static images or interactive web-based views. Vega provides a convenient representation for computational generation of visualizations, and can serve as a foundation for new APIs and visual analysis tools.

To get started with Vega, take a look at the tutorials, example gallery, and usage guide, or read about the project’s goals. To create common statistical graphics in a more concise form, check out Vega-Lite, a higher-level language built on top of Vega.
vega  d3  data  javascript  visualization 
yesterday by austinpmaher
3 key insights that make D3.js easy to learn - A geek with a hat
To summarize, you need to grok 3 key insights for D3 to make sense. Once they click, a whole new world opens up.

Code is split into data and DOM manipulation
Scales are great and used a lot
You’re always in control of rendering
JavaScript  D3  datavisualization 
2 days ago by cnk
Hello, bl.ocks.org! - bl.ocks.org
Like visualization and creative coding? Try interactive JavaScript notebooks in Observable!
d3  visualization 
5 days ago by picklestime
SVG defs Elements
The SVG <defs> element is used to embed definitions that can be reused inside an SVG image. For instance, you can group SVG shapes together and reuse them as a single shape.
d3  svg 
5 days ago by davidbenque

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