JSPM

Constrained Delaunay Triangulation in 2D

Computes the closest point to a polytope in arbitrary dimensions

clip a polygon with another

Simplifies a planar graph

Headless 2D shape drawing, filling & rasterization for arbitrary targets/purposes (no canvas required)

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

Remove self intersections, t-junctions and duplicate edges/vertices from a planar straight line graph

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

The Maps component is used to visualize the geographical data and represent the statistical data of a particular geographical area on earth with user interactivity, and provides various customizing options

A library of intersection algorithms covering all SVG shape types

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

A library of intersection algorithms covering all SVG shape types

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

turf extent module

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

Apply Ramer-Douglas-Peucker line simplification to GeoJSON features or feature collections in JS or on the CLI

Convex decomposition for 2D polygons

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

Takes a complex (i.e. self-intersecting) GeoJSON polygon, and breaks it down into its composite simple, non-self-intersecting one-ring polygons.

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

Polygon tesselation library, ported from SGI's GLU implementation.

Fast point-in-polygon intersection for large numbers of polygons.

Maker.js, a Microsoft Garage project, is a JavaScript library for creating and sharing modular line drawings for CNC and laser cutters.

Dissolve contiguous GeoJSON LineStrings and Polygons into single units.

Receives a Coordinate, a Radius and a Number of edges and aproximates a circle by creating a polygon that fills its area

Drag functionality for Leaflet vector layers

Photo Sphere Viewer plugin to display various markers/hotspots on the viewer.

Fast geometry in geometry lookup for large GeoJSONs

Javascript implementation of GEOS's Polygonize function

turf polygon module

OSM tags indicate if a closed way should be treated as a polygon or linestring

Extract elementary geometries from a geojson inheriting properties.

Convex decomposition for 2D polygons

Split a polygon using a polyline.

Baidu Map map-polygon Components for React.

Methods for spatial operations on (Multi)Polygons

Schema definitions for GeoJSON types for use with Mongoose JS

Small, no dependency library for offsetting polygons. Heavily based on this [CodePen](https://codepen.io/HansMuller/pen/lDfzt) by Hans Muller.

Return the centroid for a given convex polygon.

Allow to drag Leaflet path

SDK for EVM chains, used in conjunction with @wormhole-foundation/sdk

API to interact with Helio Finances program on EVM chains.

Coordinate, linear, and area measure tool for Leaflet maps

Minimum bounding rectangle implementation in JavaScript. Uses `concaveman` and `mathjs` as dependencies.

Everstake Wallet SDK for Javascript

utility for working with polygons (arrays of vec2s)

Functional, polymorphic API for 2D geometry types & SVG generation

Zoopla inspired freehand polygon creation using Leaflet.js.

This library may not be fast, but it is robust. Robust in the fact that it will find all of the self-intersections in a polygon - minus of course shared endpoints.

compute the area of a 2d polygon

Reverse geocoding to determine the location where it is contained (continent, country, region and state) from the latitude and longitude specified. This module also has tools to get lists of continents, country groupings, countries, regions and states in

Compute distance from a point to an arbitrary shaped polygon, line, or point

Calculate the area of a simple polygon

point in polygon searches for leaflet

A pure javascript implementation of the QuickHull algorithm for finding the smallest polygon enclosing a set of points

Small, typed, dependency free tool to round corners of 2d-polygon provided by an array of { x, y } points.

CLI tool for Elephant Network

Determine if an x y coordinate exists in a polygon.

Mappls Maps official hybrid map SDK for angular & reactJS NPM

Any dimensional Minkowski sums of convex polytopes

Merge non continuous geojson polygons into multiples concave polygons based on polygons distance.

a lightweight yet faster osm (either in xml or in json formats) to geojson convertor - 4x faster than xmldom + osmtogeojson in most situations - implemented in pure JavaScript without any 3rd party dependency

Check if point is inside polygon

chaikin's smoothing algorithm for 2D lines

For given polygon finds if any of segments intersect with each other

JavaScript tool for working with polygons. It uses several basic principles to be super simple and super universal.

Drag feature functionality for Leaflet.draw

Polygon tools

Draw lines and polygons with canvas. Save and load path to canvas.

Package for encoding / decoding images, transforming images, applying filters, drawing primitives on images on the client side (no need for server Node.js)

2D / 3D closest point / proximity helpers

Polygon convex partitioning and triangulation.

Check if two polygons overlap

Create N number of random points inside of a polygon

Yandex.MapKit and Yandex.Geocoder for react-native

Detect if a polygon has self intersecting lines

Fast 2D contour line extraction / generation

Turns SVG shapes (polygon, polyline, rect, g) into SVG paths. It can merge groups and apply transforms.

Ignite UI React Maps components.

Infinity Wallet connection SDK for DApp web3 connect integration

Customizable nD polyline interpolation, re-sampling, splitting & nearest point computation

Library to convert geohashes to multiple GeoJSON polygons or a single GeoJSON FeatureCollection

triangulates a series of 2D contours

Converts path commands for an SVG path to polygonal points.

2D polygon/polyline analysis & processing utilities

Sveaflet = Svelte + Leaflet

Zoopla inspired freehand polygon creation using Leaflet.js.

US and canada state polygon - state outline

2D/3D convex polygon tessellators

Javascript library for 2d geometry

Refactored Leaflet plugin for drawing freehand polygons, with support for mobile

高德地图 Polygon 编辑器。

Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams

高德地图 Polygon 编辑器。

TippingChain SDK - On-chain tipping with USDC payouts on ApeChain

Turns any GeoJSON shape into a list of geohashes

This script finds all points where the polygons intersect each other.

构造多边形对象，通过 PolygonOptions 指定多边形样式。

Return random position inside geoJson Polygon or MultiPolygon

高德地图 MouseTool 绘制工具。

Agentic commerce tools for Boson and Fermion protocols

Yandex MapKit for React Native

Interpolate circle to polygon for GeoJSON

2D line & convex polygon clipping (Liang-Barsky / Sutherland-Hodgeman)

Plugin that selects feature(s) by drawing an area on the map

Boolean operations on polygons

2D Polygon math: boolean operations, triangulation, graphs, support for holes and non-convex shapes.

Polygon equidistant offset

chaikin's smoothing algorithm for any dimension lines

turf bbox module

Leaflet plugin to create polygon with circle, for touchscreen

Ultralight JS for Ethereum

Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams

A module to check if a polygon self-intersects

Extracts the boundary of a binary 2D image

Computes a boolean combination of two planar graphs

Utilities to split GeoJSON geometries

TypeScript library for polygon boolean operations

An Ethereum indexer for monitoring and processing blockchain events. Works on all EVM chains.

Two dimensional vector math library for JavaScript. Built for performance in computation-heavy real-time engines without sacrificing usability. Supports tree shaking and dead code removal to avoid bloating client-side bundles. Zero dependencies.

a few point and polygon utils

n-dimensional boids simulation with modular behavior system

Wavefront OBJ parser (& exporter soon)

sample the signed distance field of a polygon in 2d space

Turns lineTo, moveTo, quadratic & bezier curves into discrete Vector2 points

triangulates a fontpath using poly2tri

Highly configurable, fuzzy line & polygon creation with presets and composable fill & stroke styles. Canvas & SVG support

一个用于图片标注的javascript库，基于canvas，简单轻量，支持矩形、多边形、点、折线、圆形。

IGES 5.3 serializer for (currently only) polygonal geometry, both open & closed

Receives a Coordinate and ellipse properties and aproximates a ellipse by creating a polygon that fills its area

Coordinate, linear, and area measure tool for Leaflet maps

Coordinate, linear, and area measure tool for Leaflet maps

Ignite UI Angular map components.

test if 2D convex polygon is clockwise

<p align="center"> <br /> <a href="https://createweb3dapp.alchemy.com"> <img src=".github/images/cw3d-logo.png" width="200" alt=""/></a> <br /> </p>

Coordinate, linear, and area measure tool for Leaflet maps. Forked from LJA Engineering, Inc - GIS

Maps postal codes to polygons

A 2D collision checker for modern JavaScript games.

Leaflet plugin for drawing bezier splines from polylines and polygons

The SVG Path Interpolator produces point data representing interpolated values within an SVG path.

Quickly find points in large sets of polygons

CLI to create decentralized applications (dapps) using [Scaffold Alchemy](https://github.com/alchemyplatform/scaffold-alchemy).

Source for all GeoJSON boundaries on Earth

Yandex.MapKit and Yandex.Geocoder for react-native

一个用于图片标注的javascript库，基于canvas，简单轻量，支持矩形、多边形、点、折线、圆形、网格。

Polygon near-linear time triangulation (based on Seidel's algorithm) with ear clip for small cases. Handles degenerate cases of colinear edges and vertices touching edges.

A library used to construct a visibility polygon for a set of line segments

Helper functions to convert BBoxes to multiple formats

Crypto wallet generator CLI tool

An algorithm to decompose polygons with holes from "A practical algorithm for decomposing polygonal domains into convex polygons by diagonals" by J Fernández

Zoopla inspired freehand polygon creation using Leaflet.js.

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

🧊 HODL Wallet - Fast CLI crypto wallet!

Converts polylines, wkts, wkbs, polygons, circles, rectangles, as well as standard geoJSON into geoJSON MultiPolygon Feature Objects. Converts wkb_list and FeatureCollection to arrays.

WebAssembly port of the Clipper2 library for polygon clipping and offsetting

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

Smoothing algorithm for 2D lines and polygons

Native modules to determine if a location is within defined geographical boundaries using Google Geometry library

Everstake Wallet SDK for Javascript

Polygon - Everstake Wallet SDK

javascript library that allows drawing a polygon shape over a Google Map and get it's coordinates

A CLI tool to download verified smart contract source code from Etherscan and other block explorers using the Etherscan V2 API.

soundsright chain sdk

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

n8n node for accessing multiple blockchain networks (Ethereum, BSC, Polygon, Fantom, Avalanche, Arbitrum, Optimism, etc.) with comprehensive analytics and data retrieval capabilities

Fork of kittykatattack's bump library for PixiJS (https://github.com/kittykatattack/bump), wrapped into npm package

CryptAPI's Library for NodeJS

一个用于图片标注的javascript库，基于canvas，简单轻量，支持矩形、多边形、点、折线、圆形、网格。

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

Merge solid polygons and decompose into convexes.

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

Performant & ergonomic 2D geometry in typescript

a faster & more complete OSM & Overpass (either in xml or in json formats) to geojson convertor - 4x faster than xmldom + osmtogeojson in most situations - implemented in TypeScript with txml for XML parsing

turf boolean-point-in-polygon module

Coordinate, linear, and area measure tool for Leaflet maps

Compute visibility polygons by Triangular Expansion

Library for polygons operations

Make svg polygon & star shape

A Multichain crypto wallet library that supports Ethereum, Bitcoin, Solana, Waves and other EVM compatible blockchains E.g. Binance Smart Chain, Polygon, Avalanche etc.

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

Official MCP (Model Context Protocol) server for UniVoucher.com - the world's first decentralized crypto gift card protocol. Provides comprehensive documentation access and live API integration for building on the UniVoucher ecosystem across multiple bloc

Quickly find points in large sets of polygons

Zoopla inspired freehand polygon creation using Leaflet.js.

mongoose schema to support geojson fields

## Demo

A simple javascript plotting boilerplate for 2d stuff.

determine if a polygon is clockwise or counter-clockwise

Core contracts for the Complus Network on top of Polygon - Matic Network

Typescript package used to batch smart contract read calls into a single tx through the use of a multicall contract.

Ignite UI Web Components map components.

Pipedream polygon Components

Provides feature drawing functionality for Ember-Leaflet, based on wrapping the Leaflet Draw library

A JavaScript port of the polyclip library

Converts GeoJOSN polygons to osm poly format file.

This is a utility function to calculate the bounding box of series of 2D points

Gomjau-hogg notation tessellations of regular polygons

A turf module to transform a LineString geometry to a (closed) Polygon geometry.

Interactive drawing of polygons on the map.

A suite of utilities used to implement bridges based on the Wormhole protocol.

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

determine if a point is inside a polygon with ray casting or winding numbers

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

List of tokens on Ethereum and Ethereum-compatible chains

Zoopla inspired freehand polygon creation using Leaflet.js.

Comprehensive blockchain integration platform with multi-chain support, smart contracts, DeFi protocols, NFT infrastructure, Bitcoin support, and seamless SDK ecosystem integration for IOTA Big3

Smoothes a polyline (as flat number array) using Chaikins Algorithm

Generate polygons around a point

Model Context Protocol server providing access to Tatum's comprehensive blockchain API across 130+ networks with 13 tools

Math utils for 2d graphics

MCP server for OKX DEX Analytics - comprehensive DEX aggregator analytics with multi-chain support

ElizaOS plugin for Zapper protocol integration - portfolio tracking, DeFi analytics, and blockchain data across 50+ networks

Yandex.MapKit and Yandex.Geocoder for react-native

A comprehensive TypeScript library for geospatial operations including geofencing, polygon containment, area calculations, and coordinate processing. Supports GeoJSON, KML, and KMZ file formats with both local file and remote URL loading capabilities.

Receives zip code polygon data and transforms it into geoJSON format

Yandex.MapKit and Yandex.Geocoder for react-native

turf rhumb-circle module

A suite of utilities used to implement bridges based on the Wormhole protocol.

MCP server for Web3 wallet interactions on EVM-compatible chains using Wagmi

Build a stark from a PIL

A simple component for rendering polygons

Mappable Kit for react-native

Yandex MapKit for React Native

Zoopla inspired freehand polygon creation using Leaflet.js.

n8n node for accessing NFT data via OpenSea API with comprehensive filtering and AI Agent support

A polygon cropper built in top of fabric.js

Transforms Google Maps Polygons/Google Maps Encoded Polygons/WKB/WKT into GeoJSON

Library for calculation of polygon centroid and bounding box area.

Pure HTML polygons for React, no SVG.

Fast point in polygon algorithm

BlockBee's Library for NodeJS

SDK for EVM chains, used in conjunction with @wormhole-foundation/connect-sdk

A utility to generate coordinates of an equilateral polygon.

ElizaOS plugin for Polygon zkEVM

Vue3 component for drawing hotzones (lines/polygons) on images

Convert a planar straight line graph into a polygon

Return the center for a given SVG polygon points

This is the core package enabling HTML Polygons for React.

TypeScript SDK for overlay.fun API

dxf-parsing is made to parse dxf files : polygons, texts, circles ...

Polygon - Everstake Wallet SDK

An extension to Leaflet.draw to allow editing large polylines one chunk at the time

TypeScript SDK for Aryze Reforge cross-chain bridge protocol

🛠 An SDK for building applications on top of Litedex V1

This is the official Alps Finance smart contract repository.

Features of the Rarimo SDK that provide access to wallets and the ability to interact with them on the NEAR blockchain.

A schematics packages providing tools for developping Angular Dapps