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Image annotation with Python. Supports polygon, rectangle, circle, line, point, and AI-assisted annotation.

Fast, header-only polygon triangulation

Coin Wallet is a self-custodial crypto wallet for Bitcoin, Bitcoin Cash, Ethereum, Litecoin, XRP, Stellar, Dogecoin, Dash, Monero, Binance Smart Chain, Cardano, Ethereum Classic, Solana, Avalanche, TRON, Polygon, Arbitrum, Toncoin, and Sui.

A very fast JavaScript polyline and polygon clipping library

Converts a raw digitized polygon mesh to a clean mesh where all the occurrences of a specific set of "defects" are corrected. Holes, self-intersections, degenerate and non-manifold elements are all replaced with valid configurations.

Boolean Operations for 2D Polygons: Supports intersection, union, difference, xor, and self-intersections for all polygon varieties.

Geometry library for C - Fast point-in-polygon

A CSS 3D engine for the DOM. Renders polygon meshes in HTML by leveraging matrix3d transforms.

Open-source Polymarket clone | 开源预测市场平台 — On-chain USDT escrow on Polygon. Vue 3 + Solidity + Java. Buy Yes/No shares on real-world events. 链上USDT托管，智能合约自动结算。

The first open-source strategy backtesting engine for Polymarket. Test your prediction market strategies using historical data, order book snapshots, and AI-driven simulations. Optimize your ROI before trading live on Polygon.