A lightweight C++ library for polygon partitioning and triangulation with multiple algorithm implementations.
PolyPartition is a lightweight C++ library for polygon partitioning and triangulation that implements multiple algorithms for breaking down complex polygons into triangles or convex components. It solves the problem of polygon decomposition needed in computer graphics, game development, and computational geometry applications where polygons must be processed into simpler forms for rendering or analysis.
C++ developers working in computer graphics, game engines, CAD software, or computational geometry who need efficient polygon decomposition algorithms integrated into their projects.
Developers choose PolyPartition because it provides multiple well-documented algorithms with clear trade-offs between computational complexity and result quality, all in a minimal, focused library without unnecessary dependencies.
Tiny Polygon Partitioning and Triangulation Library
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Implements ear clipping, optimal triangulation, and monotone triangulation, each with documented time/space complexity and quality trade-offs, as shown in the README examples and complexity tables.
Includes both Hertel-Mehlhorn heuristic and optimal dynamic programming algorithms for convex decomposition, providing options based on performance versus optimality needs.
Most algorithms support holes through preprocessing methods like RemoveHoles, useful for complex polygons in graphics or CAD applications.
README explicitly labels algorithm outputs as optimal, satisfactory, or poor, helping developers make informed choices without hidden drawbacks.
The optimal triangulation and convex partition methods do not natively handle holes, limiting their utility for polygons with internal voids without sacrificing optimality, as admitted in the README.
Triangulation by partition into monotone polygons creates many thin triangles, described as 'poor' in the README, making it unsuitable for applications requiring stable or aesthetic results.
Requires polygons to be non-self-intersecting and correctly oriented, necessitating additional validation and preprocessing that isn't handled by the library, adding integration overhead.
Only provides method declarations in polypartition.h without comprehensive examples or tutorials, increasing the learning curve for developers new to polygon decomposition.