D3
D3 is a modular library providing low-level primitives for creating data-driven visualizations. It functions as a flexible framework that allows for direct control over visual presentation by mapping abstract data dimensions to graphical properties, such as position, color, and size, without imposing predefined chart abstractions.
The library distinguishes itself by offering specialized tools for complex data representation, including algorithmic layouts for hierarchical structures and geographic projection utilities for mapping spherical coordinates. It also includes a comprehensive suite for managing user interactions, enabling the creation of interactive selection areas that respond to mouse and touch input.
Beyond visualization, the project provides a collection of utilities for document manipulation and data processing. These tools allow developers to query elements, apply data-driven transformations, and perform operations such as ordering, grouping, and summarizing datasets to prepare them for rendering in vector or bitmap contexts.
Features
- Data Visualization Libraries - A modular collection of visualization components, including scales, shapes, axes, and selection tools, designed for integration into any environment.
- Data Visualization Scales - A suite of mapping functions that translate abstract data dimensions into visual properties such as position, color, size, or stroke width.
- Low-Level Rendering Engines - A low-level framework providing direct control over visualization presentation by allowing custom rendering logic for vector or bitmap graphics without imposing default chart abstractions.
- DOM Selection and Manipulation - A mechanism for querying document elements and applying data-driven transformations, including attribute, style, and property modifications, as well as element insertion and removal.
- Data-Driven Shape Generators - A collection of shape-generation utilities that map data to visual representations, supporting rendering to vector-based path elements or bitmap-based 2D contexts.
- Brush Interaction Utilities - A toolset for creating 1D or 2D interactive selection areas on graphical elements, supporting mouse and touch input for range selection.
- Hierarchical Layouts - A collection of layout algorithms for visualizing tree-like data structures, including node-link, adjacency, and enclosure diagrams for multiscale data exploration.
- Geographic Projections - A geographic mapping utility for projecting spherical coordinates onto a plane, supporting adaptive sampling of polygons and polylines to maintain geometric accuracy.
- Array Manipulation Utilities - A comprehensive suite of utilities for ordering, searching, summarizing, binning, grouping, and transforming data sets.