cchart

CChart is a cross-platform software library designed for creating and embedding charts in software applications. It provides a lightweight rendering core and a modular set of chart types, aiming to balance simplicity with performance. The library targets both desktop and web environments through native rendering backends and language bindings.

Features include a range of chart types such as line, bar, column, area, scatter, pie, donut, and radar charts, with support for time-series and categorical data. Data binding is designed around straightforward data structures, and scales and axes are automatically computed with options for customization. Rendering can be performed via vector-based backends (SVG or canvas) and can also export to raster formats like PNG or SVG files. Interactivity features include tooltips, zooming and panning, clickable legends, and selection states, enabling exploratory data analysis. Styling is theme-driven, allowing consistent appearance across charts, and accessibility hooks are provided for screen readers and keyboard navigation.

Architecture emphasizes a separation of concerns: a data model, a rendering engine, and a presentation layer. The core is extensible through plugins or adapters for new chart types or data sources, and it includes bindings or APIs for multiple languages, such as C, Python, and JavaScript. Licensing is typically open-source under permissive terms, encouraging integration into commercial and non-commercial projects.