spatial_index.qwer · 1.0.0An R-tree of places in memory: the nearest ones to a point, all within a distance, those in a map's view, and markers clustered for it.6 views · 8 downloadsGradients gradient.qwer · 1.0.0Colour scales and gradients (viridis, magma, blues, red-blue and more, or your own stops) as hex lists, a colour per value, CSS or SVG.6 views · 6 downloadsHeatmaps heatmap.qwer · 1.0.0Heatmaps as PNG: clicks or sightings blurred into a density map over a screenshot or a plain background, and tables of numbers as coloured grids.9 views · 9 downloadsImage tiles image_tiles.qwer · 1.0.0Pictures cut into tiles for zoomable viewers, puzzles or a grid of posts, and many pictures made into one contact sheet of thumbnails.8 views · 8 downloadsCoordinates coordinates.qwer · 1.0.0Coordinates as people write them, such as 52°22'N 4°53'E or N 52° 22.2', read as one, written as degrees-minutes-seconds, and converted to and from UTM.7 views · 8 downloadsGPX tracks gpx.qwer · 1.0.0GPX tracks from watches and phones read: distance, climbing, duration, moving pace, per-kilometre splits, and the points for a map line.7 views · 8 downloadsH3 hexagons h3.qwer · 1.0.0H3 hexagon cells: the cell of a point at a resolution, its neighbours within k rings, its outline for a map, and distances between cells.7 views · 8 downloadsKML and KMZ kml.qwer · 1.0.0KML and KMZ files from Google Earth and My Maps read to GeoJSON, placemarks with their names, descriptions, folders and extended data, and GeoJSON written back as KML or KMZ.7 views · 8 downloadsMaidenhead locators maidenhead.qwer · 1.0.0Maidenhead grid locators as radio amateurs use them (FN31pr, JN58td): from a latitude and longitude at 2 to 10 characters, back to the square's centre and corners, and the distance and bearing between two.7 views · 8 downloadsMap clusters map_clusters.qwer · 1.0.0Map markers clustered by zoom as Supercluster does: thousands of points loaded once, then for each view and zoom the clusters with their counts and the single points, a cluster's points, and the zoom where it opens.7 views · 7 downloadsMap projections projections.qwer · 1.0.0Coordinates moved between map projections offline, by EPSG code or PROJ string: GPS degrees to Web Mercator, UTM, the British, Dutch and Swiss grids and some 6,000 others, for points and whole GeoJSON.8 views · 9 downloadsMap tiles map_tiles.qwer · 1.0.0Slippy map tiles as OpenStreetMap and Google number them: the tile of a point, a tile's bounds and pixel offsets, Bing quadkeys, the tiles covering an area for offline caching, and tile URLs from a template.6 views · 7 downloadsMapbox mapbox.qwer · 1.0.0Mapbox from the server: Geocoding v6 forward and reverse with address parts read out, directions with polyline6 decoded, travel time matrices, Static Images URLs with markers, paths and auto fit, slippy-map tile numbers and tile URLs. A 429 is waited out by its reset time, and the token stays out of error messages.3 views · 9 downloadsMBTiles mbtiles.qwer · 1.0.0MBTiles files read by a small SQLite reader of its own, in pure Rust and with no locks, so no bundled SQLite sits beside Quillo's: metadata, tiles by web-map z/x/y with the TMS row flip, the unique index walked where there is one, overflow pages followed, mbutil's `map` and `images` layout joined, and tiles written out for `file()`.2 views · 8 downloadsOpenStreetMap PBF osm_pbf.qwer · 1.0.0OpenStreetMap PBF extracts read in pure Rust with no database: the header and its required features, nodes, dense nodes, ways and relations filtered by tags and a bounding box, ways given their coordinates and length by a second pass, tags counted, and matches written as GeoJSON.3 views · 5 downloadsPlaces geo.qwer · 1.0.0Distances on the globe, bounding boxes for near-me queries in SQL, and geohashes to group points.7 views · 9 downloadsPlus codes plus_codes.qwer · 1.0.0Plus codes (Open Location Codes), the addresses Google Maps gives places without a street: from a latitude and longitude, back to their area, shortened near a town and recovered from the short form.7 views · 8 downloadsPMTiles pmtiles.qwer · 1.0.0PMTiles v3 archives read from a file or from any server answering Range requests, with no tile server: the header, Hilbert tile ids both ways, directories with run lengths and leaves, metadata, gzip, brotli and zstd, and tiles by z/x/y. Directories are cached, and an archive replaced under the reader is noticed by its ETag.3 views · 7 downloadsPolygons polygons.qwer · 1.0.0Points and areas from GeoJSON: whether a point is in a polygon, which zone holds it, and an area's size, perimeter, centre and bounding box.7 views · 8 downloadsReverse geocoding reverse_geocode.qwer · 1.0.0The nearest town or city to a point, offline, from about 150,000 places with their region and country code.6 views · 7 downloadsShapefiles shapefile.qwer · 1.0.0Esri Shapefiles read to GeoJSON with their attributes, from the .shp and .dbf or the .zip they come in, with their fields, bounds and projection; and GeoJSON written as a shapefile for the GIS team.7 views · 8 downloadsTime zone at a place timezone_at.qwer · 1.0.0The IANA time zone at a latitude and longitude, offline, and the local time and UTC offset there, summer time counted.7 views · 8 downloadsTopoJSON topojson.qwer · 1.0.0TopoJSON read: arcs decoded with quantization and delta encoding, reversed arcs followed, and any object turned into GeoJSON with its ids and properties. GeoJSON made into a topology, where a border two features share is one arc; neighbours found and borders drawn as a mesh.5 views · 8 downloadsWKT and WKB wkt.qwer · 1.0.0Geometries in WKT and WKB as PostGIS and GIS tools write them: read to GeoJSON and written from it, EWKT and EWKB with their SRID, heights kept, and a geometry's type, point count and bounds.6 views · 7 downloadsGrid paths grid_paths.qwer · 1.0.0A* paths on a grid with walls and slow ground, for games, robots and floor plans: the cheapest path, the cells in reach, and the path drawn.7 views · 9 downloadsOther tags
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