JSPM

Utility for converting between WGS84 lat/lng and MGRS coordinates

Almost All the Projection Definitions for Proj4js

Proj4JS Projector Fully Loaded with Projections

Reproject GeoJSON. Works Offline.

Re-project a line.

A JavaScript port of the Proj.4 cartographic projections library

Smooth Proj4js integration with Leaflet

Reproject a Bounding Box

Merge Multiple Proj4 Instances

Reproject GeoJSON from one projection/CRS to another

Proj4js wrapper for conversion between geospatial CRS (coordinate reference systems)

Gets EPSG Code for Various Inputs (incl. OGC WKT, ESRI WKT, GML, Mapfile, PROJ String, Proj4js String, XML)

ogr2ogr wrapper w/ multiple format support

Simple, Modern Geospatial Bounding Boxes

A library that converts GeoTIFFs geokeys to Proj4 string

A list of EPSG codes for Proj4.js

Parse WKT-CRS (Well-known text representation of coordinate reference systems)

Transform coordinates from one coordinate system to another.

Wrapper for all epsg definitions from PostGIS for proj4js in one easy-to-use file

Read Pixel Values from a GeoTIFF within a Bounding Box in almost any Projection

Super Low-Level Raster Reprojection and Resampling Library

Turbo-charge your Re-projection Functions

reproject for geojson file

A tool for geotech analysis.

Collect and Merge all Available Proj4 Instances

Helper library for reprojecting geojson geometries with proj4js, including a number of extra helper utilities

Projection Data Compressed to Fit in the Browser. Includes PROJ4 Strings, ESRI WKT, and OGC WKT

Spatial reference library for node

Modern Spatial Reference System Class. Supports EPSG Codes, PROJ4 String, and Well-Known Text.

Reproject a geojson with proj4js

ogr2ogr wrapper w/ multiple format support

Find a local projection from GeoJSON data

Load a static image of any projection via Arrugator and Proj4js.

Handle transformation between mars projections.

A Node.js library that converts DEM meshes (DXF, GeoJSON, etc.) into Cesium Terrain Tiles (quantized-mesh or heightmap) with flexible zoom-level control and multi-threading support.

Project GeoJSON files or a stream of GeoJSON or GeoJSON objects with proj4

proj4 coordinate transforms in glsl

一个支持三参数与七参数的 GPS 坐标转换工具，适用于 WGS84 转 CGCS2000、北京54 等坐标系的正向与反向平面投影计算。

A Node-Red node for performing geographic coordinate conversions

Projects geojson from any epsg-defined projection to any other defined epsg-defined projection

An up-to-date* list of all known EPSGs definitions as well as the nadgrid files, which are referenced by at least one EPSG definitions.

Utility for converting between WGS84 lat/lng and MGRS coordinates

Providing Planetary IAU CRSs to Proj4js.

Function to pass custom proj4 strings to d3 projection

Retrieve geographic projection information from an EPSG SRID

transform geojson

ogr2ogr wrapper w/ multiple format support

Render colorful grid data.

Find the geographic projection which best turns a given (X,Y) into an expected (lng, lat).

坐标转换

Convert GeoJSON to GeoJSON (from obsolete specification (aka GJ2008) and back)

Transform coordinates from one coordinate system to another.

use proj4 strings to map lonlat geometry to screen coordinates in a shader

Convert geojson to specific projection. Includes brazilian projections to proj-geojson.

A Node-Red node for performing geographic coordinate conversions