Nano ID for PostgreSQL.

Nanoid implementation in PostgreSQL PL/pgSQL

A marker collision plugin for maptalks and uses rbush library.

Layer control for OpenLayers

MyBatis Type Handlers for PostGIS

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

⚠️ ARCHIVED ⚠️ WKT <-> GeoJSON

This package can use json instead of classes to make OpenLayers style easily shareable.