Acknowledgments
TrailReplay is proudly built on the shoulders of open source giants. We thank the following projects and communities:
🗺️ MapLibre GL JS
Open-source JavaScript library for interactive maps and 3D visualization in the browser. Powers all the map rendering and animation in TrailReplay.
License: BSD-3-Clause — maplibre.org
🌐 OpenStreetMap
Collaborative project to create a free, editable map of the world. Provides the base map data for TrailReplay.
License: ODbL — openstreetmap.org
🗻 OpenTopoMap
Open, topographic map tiles based on OSM data. Used for terrain and outdoor visualization.
License: CC-BY-SA 3.0 — opentopomap.org
🚦 OpenRouteService
Open-source routing engine and API based on OSM. Used for calculating routes between points.
License: GPL-3.0 — openrouteservice.org
📏 @turf/turf
Advanced geospatial analysis for JavaScript. Used for distance, geometry, and spatial calculations.
License: MIT — turfjs.org
🛰️ Esri World Imagery & Wayback
Global satellite basemaps and historical releases powering imagery views.
Attribution: © Esri & partners — esri.com
🗺️ CartoDB Labels
Place-name label overlays for satellite basemaps.
Attribution: © CARTO — carto.com
⛷️ OpenSnowMap
Ski piste overlays based on OpenStreetMap data.
License: CC-BY-SA & ODbL — opensnowmap.org
🏔️ OpenTopography & ASTER GDEM
Elevation raster data used for terrain shading and 3D effects.
Attribution: OpenTopography — opentopography.org
📐 AWS Terrain Tiles (Terrarium)
Elevation tiles powering slope and aspect overlays.
Attribution: AWS Terrain Tiles