visual namespace contains the types that constitute the Pentaho Visualization API.
The Visualization API provides a unified way to visualize data across the Hitachi Vantara suite (e.g. Analyzer, PDI, CDF).
Essentially, it is a set of abstractions that enables safe, isolated operation between applications, visualizations and business logic.
A visualization is constituted by:
Model, which identifies the visualization and defines it in terms of its data requirements, such as the visual degrees of freedom it has (e.g. X position, color and size) and any major options that affect its rendering.
View(at least), which implements the actual rendering using chosen technologies (e.g. HTML, SVG, D3), and handle user interaction, dispatching
actionsand, for example, showing tooltips. The standard data actions are
Data APIensures seamless integration with data sources in the Pentaho platform, as well as with other client-side component frameworks.
Type APIprovides to visualizations out-of-the-box features such as class inheritance, metadata support, configuration, validation and serialization.
Core APIsprovide to visualizations features such as localization, theming and service registration and consumption.
A set of stock visualizations is included, covering the most common chart types. Based on the CCC charting library, they're customizable and extensible to fit your organization's desired look and feel.
Source: doc-js/pentaho/visual/_namespace.jsdoc, line 17