Licences & Attribution
XPGuard is proprietary software made available free of charge for personal, non-commercial use as an aid to flight simulation on virtual air-traffic networks such as VATSIM. Use is subject to the Terms of Use and End-User Licence Agreement. XPGuard is not open source. Third-party materials remain subject to their respective licences and notices, as set out below.
1. X-Plane Scenery Gateway data
The X-Plane airport data used by XPGuard is derived from contributions to the X-Plane Scenery Gateway. This data is provided under the GNU General Public License, version 2.
"…licensed under the terms of the GPL 2.0" - X-Plane 12, Global Scenery / Global Airports / README
Use of airport data
- Airport layouts provide runway, taxiway and surface information for the map editor.
- Stop bar positions may be derived from this data where no community map is available.
- Runway data helps place Takeoff Hold Lights and identify the runway a stop bar protects.
Attribution
Airport data © the respective X-Plane Scenery Gateway authors, licensed GPL-2.0. XPGuard provides an additional lighting layer. XPGuard is not affiliated with or endorsed by Laminar Research.
Warranty disclaimer
The GPL-licensed material described above is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See sections 11 and 12 of the licence for the full terms. XPGuard is a simulation aid for VATSIM. It is not for real-world navigation.
2. Community maps
XPGuard lighting maps are submitted by volunteer contributors and reviewed before publication. Maps based on Gateway layouts build on the licensed material described above.
For scenery-specific maps in Microsoft Flight Simulator (MSFS) or for X-Plane add-on sceneries, contributors manually position stop bars and other lights to match the scenery installed in their simulator. Published XPGuard lighting maps contain these coordinates, identifiers and related settings. They do not include MSFS, X-Plane or third-party scenery files, models or textures. All rights in the underlying scenery remain with their respective owners.
Contributors are responsible for ensuring that their source material permits the intended use. Rights holders may request removal by contacting [email protected]. Reported maps will be removed pending review.
3. Map imagery
| Layer | Provider | Terms |
|---|---|---|
| Satellite / Satellite (Clarity) | Esri World Imagery - Esri, Vantor, Earthstar Geographics, and the GIS User Community | Esri terms; tracing permitted |
| OpenStreetMap | © OpenStreetMap contributors | ODbL - basemap only |
| Google Satellite / Hybrid | Google Maps Platform | Review team only - no tracing |
OpenStreetMap is used solely as a background map; its geometry is not incorporated into XPGuard maps. Google imagery is restricted to submission review and must not be traced.
4. Software and fonts
| Component | Used in | Licence |
|---|---|---|
| Leaflet | Map editor and console | BSD-2-Clause |
| Leaflet.GoogleMutant | Google base layers | GPL-3.0 |
| Dear ImGui | X-Plane plugin panel | MIT |
| nlohmann/json | X-Plane plugin | MIT |
| libcurl | Plugin connections (macOS / Linux) | curl licence |
| Newtonsoft.Json | MSFS and vatSys plugins | MIT |
| X-Plane SDK | X-Plane plugin | Laminar Research SDK terms |
| EuroScope plugin SDK | EuroScope plugin | EuroScope SDK terms |
| vatSys integration | vatSys plugin | vatSys terms |
| Microsoft SimConnect | MSFS plugin | Microsoft SDK terms |
| Archivo, IBM Plex Sans/Mono | Website | SIL Open Font License 1.1 |
5. Trademarks
X-Plane is a trademark of Laminar Research. Microsoft Flight Simulator is a trademark of Microsoft Corporation. VATSIM is a trademark of the VATSIM Network. EuroScope and vatSys are the property of their respective authors. XPGuard is an independent community project and is not affiliated with, endorsed by, or sponsored by any of them.
6. Rights inquiries and removal requests
For attribution corrections, rights inquiries or requests to remove material, contact [email protected].