coordinate-reference-system

Projections iOS Library

Coordinate Reference Systems Java Library

Polars plugin for coordinate transformation and more

Python library for transformation of geographic coordinates between WGS84 and the Swedish coordinate reference systems SWEREF99 and RT90

Generic geographical library for Swift

Coordinate Reference Systems iOS Library

GeoPose enables the easy integration of digital elements on and in relation to the surface of the planet.

Projections Java Library

TypeScript library for transformation of geographic coordinates between WGS84 and the Swedish coordinate reference systems SWEREF99 and RT90

An in-browser spatial coordinate editor, point-cloud transformer, and AI-powered CRS detection workspace for MIKE by DHI & GIS data workflows.

Comprehensive, production-tested guides on automated spatial data validation and quality control — geometry & topology validity, CRS precision, schema enforcement, governance, validation pipelines, and tooling. Runnable Python & SQL for GIS analysts, QA engineers, data stewards, and compliance teams.

DEPRECIATED - This workshop discusses coordinate reference systems (projections) and gives examples in R. It can be expanded to give examples in other tools.

Provide geographic coordinates from bounding boxes.

Deterministic geospatial data standardization & schema mapping automation — INSPIRE, FGDC, OGC, ISO 19115. Runnable Python guides for CRS normalization, attribute ETL, validation gates, and compliance/audit reporting.

Adding timing and location to traditional types of data and to build data visualizations.

Production-grade Python for cadastral & high-precision coordinate transformation — NTv2/NADCON grid shifts, projection math, Helmert transforms, and survey-grade validation. Source for www.coordinatetransformation.org

A QGIS failure mode with no error message: how a remote ArcGIS layer can silently reassign your project CRS and move every generated map to the wrong hemisphere.

Web viewer for SEG-Y seismic files: header parsing, data-type classification, and EPSG/CRS detection for Australian & PNG data with pyproj transforms to WGS84

Modern C++23 geodesy library: coordinate reference systems, WKT 1/2 (OGC and ESRI) and coordinate transformations backed by the EPSG catalogue. Python bindings on PyPI.

JVM (Scala/Java) library for transformation of geographic coordinates between WGS84 and the Swedish coordinate reference systems SWEREF99 and RT90