libgd-gis: A Practical GIS Rendering Engine for Ruby
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Germán Alberto Gimenez Silva

Germán Alberto Gimenez Silva @gsgermanok

About: With over 20 years of experience, I’ve enjoyed programming in Python, Ruby, and exploring a wide range of technologies, including databases, Docker, and Linux systems. Passionate about solving complex

Joined:
Feb 7, 2025

libgd-gis: A Practical GIS Rendering Engine for Ruby

Publish Date: Jan 26
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January 23, 2026

Raster maps, GeoJSON overlays, and real-world cartography — without leaving Ruby.

Over the last months, I’ve been working on libgd-gis , a GIS rendering engine built on top of libgd and designed specifically for Ruby developers who need static map generation without relying on browser-based toolchains or heavyweight GIS stacks.

This article walks through the motivation, architecture, and recent features — including native GeoJSON Point support — illustrated with real examples.

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Why libgd-gis?

Ruby has excellent libraries for data processing, APIs, and background jobs — but when it comes to map rendering , the ecosystem is thin:

  • Browser-based stacks (Mapbox GL, Leaflet) require JS, tileservers, and headless rendering
  • Traditional GIS tools (GDAL, QGIS) are powerful but heavy and non-Ruby-native
  • Generating static images for reports, thumbnails, PDFs, or background jobs is surprisingly hard

libgd-gis was created to fill that gap:

A server-side, Ruby-native GIS engine for generating static maps using raster tiles and vector overlays.

👉 Read the full article.

https://rubystacknews.com/2026/01/23/libgd-gis-a-practical-gis-rendering-engine-for-ruby/

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