JSPM

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