坐标边界查询工具：使用jts库从省市区县乡镇边界数据或geojson边界数据文件中查找出和任意点、线、面有相交的矢量边界，提供HTTP API接口，内存占用低，性能优良（1秒可查1万个以上坐标对应的城市信息）

this library Drawing polygon, polyline and points in Google Map and return coordinates to your App

Magician-Scanning is a toolkit developed in Java for scanning blockchains, which can be used to monitor transactions according to the needs of developers, and it plans to support three chains, ETH (BSC, POLYGON, etc.), SOL and TRON

Bin packing places a given set of polygons in standard single/multiple rectangular sheet(s), to minimize the use of the sheet(s).

⭐ 一个支持可拖动多边形，可拖动多边形的角改变其形状的任意多边形控件

Java port of Clipper2, a Polygon Clipping and Offsetting Library

The JTS Topology Suite is a Java library for creating and manipulating vector geometry.

Magician-ContractsTools is a toolkit for calling smart contracts , you can very easily call smart contracts in Java programs for query and write operations

A java stock trading algorithm backtester for users of Alpaca.markets and Polygon.io

🔺 🔹 Find all the geohashes in a polygon. Implemented in Java

An implementation of polygon splitting algorithm (unfinished)

Custom UIView class that mask UIImageView with dynamic polygon

Regularize polygons to rectilinear shape using constrained least squares in Java

A Java libray for creating and editing half-edge data structure

Data structure for searching, sorting & alogrithms, design patterns

An alpaca-java implementation of the example-hftish algorithm

✨ Fix codes to make redis support polygon. Change codes of both redis and jedis to make it possible to call redis commands with java

rtree java

A library that allows polygon meshes to be loaded and saved with any format and with any user-defined mesh object

🖼️ Java graphics example code repository.