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Appendix B: Glossary

Term Definition
AOI Area of Interest. The geographic rectangle that defines the bounds of your game map.
Anchor point A WGS 84 coordinate stored from your canvas center, used to compute the project CRS.
Bucket A rounded elevation band. With a 50 m step, elevations 225–274 m all fall in the "250" bucket.
CRS Coordinate Reference System. Defines how map coordinates relate to locations on Earth. The plugin uses UTM zones for accurate metric measurements.
DEM Digital Elevation Model. A raster where each pixel stores ground elevation in meters.
GeoPackage (.gpkg) An open file format for storing geographic features. Used for OSM imports.
Hex scale The width of each hexagon in meters. Default is 500 m for Flashpoint Campaigns.
Hex tile A single hexagonal polygon in the game grid.
MGRS Military Grid Reference System. A coordinate system used for map tile alignment.
Mosaic The process of assigning game terrain/feature classes to hex tiles.
Nominatim OpenStreetMap's geocoding service. Converts place names to coordinates.
OpenTopography A web service that provides free DEM data from multiple satellite sources.
Overpass API The query interface for downloading OpenStreetMap data. The plugin builds queries automatically.
POI Point of Interest. A named location (town, landmark) that can be used to generate AOIs.
Priority A number that determines which feature class wins when two classes overlap in the same hex. Higher numbers win.
Profile The JSON file (hexmosaic_profile.json) that defines feature classes, OSM tag matching rules, and classification settings.
QML QGIS style file format. Controls how a layer looks (colors, line widths, labels).
Segment A tile created by dividing a large AOI into smaller pieces.
Shapefile (.shp) A common vector data format. Used for hex grids, AOIs, and mosaic output layers.
Snapping Automatic alignment of drawn features to the hex grid. Lines snap to hex centers, edges, or vertices depending on their behavior type.
Template A JSON styling file that defines the visual appearance of all layers at once.
UTM Universal Transverse Mercator. A family of map projections that measure in meters. The plugin picks the correct UTM zone based on your anchor point.
XYZ tiles A raster basemap served as image tiles over the internet. OpenTopoMap is the default.