yllcenter

yllcenter is an open-source software library and toolkit designed to compute and manage centers in geometric data. It provides algorithms for determining centroids, centers of mass, and central reference frames for 2D and 3D shapes, and includes facilities for aligning coordinate systems across multiple datasets. The project aims to offer a stable, numerically robust set of primitives suitable for computer-aided design, geographic information systems, and computer graphics.

The core module includes geometry primitives, centroid and inertia computation, area and polygon classification, transformation utilities (translation, rotation, scaling, affine and projective transforms), and a simple scene graph. It supports file I/O for common formats such as GeoJSON, WKT, OBJ, and STL, and provides bindings for Python, C++, and JavaScript. The library emphasizes numerical stability and a clean API designed for integration into larger pipelines.

History and development context suggest that yllcenter originated as a research prototype in the early 2010s and has evolved through community contributions. It is maintained with a focus on test coverage and cross-platform compatibility, and it is hosted on a public repository under an open-source license. The project generally positions itself as a lightweight alternative or companion to larger geometry toolkits, offering focused functionality around centers and frame alignment.

Applications of yllcenter span various domains. In computer-aided design, it aids in locating centers of mass for components. In geographic information systems, it helps determine central points for features. In robotics and graphics, it supports localization, object centering, and alignment tasks within processing pipelines.

Reception is that yllcenter serves a niche but useful role, particularly for users seeking robust centroid calculations and straightforward cross-format support. Limitations noted include performance considerations on very large meshes and competition with broader, established geometry libraries.

See also: centroid, center of mass, geometry library, coordinate transformation, affine transform.