mapSTL.com – OSM map packs / mapové podklady

© OpenStreetMap contributors, https://www.openstreetmap.org/copyright
Source extracts: Geofabrik, https://download.geofabrik.de/
Licence: Open Data Commons Open Database License 1.0 (ODbL 1.0)
Full licence: https://opendatacommons.org/licenses/odbl/1-0/
Database contents: https://opendatacommons.org/licenses/dbcl/1-0/

These derived databases are publicly offered under ODbL 1.0. You may use,
copy, distribute and modify them subject to that licence, including its
attribution and share-alike requirements. This is not an endorsement by
OpenStreetMap or Geofabrik. No accuracy or fitness guarantee is provided.

Čas v manifestu je stav databáze OpenStreetMap, nikoli datum zaměření.
Soubory obsahují vybrané původní prvky OSM, jejich souřadnice a vlastnosti,
nikoli měřený terén ani doplňkové podklady střech a konstrukcí mostů.
Data nejsou přizpůsobená konkrétnímu uživateli. Neobsahují zákaznické údaje.
Jde o samostatné databáze pro tvorbu modelu, nikoli o soubory STL/3MF.

Aktivní místní pokrytí: Česko a Slovensko.
Přesný rozsah každého balíčku určuje manifest.json.
Společné přeshraniční pokrytí spojuje pouze soubory ze stejného datového snímku.
Active local coverage: Czechia and Slovakia.
See manifest.json for exact coverage and snapshot dates.
Mimo místní pokrytí načítá aplikace automaticky data Overture; další státy
není třeba nahrávat. Výřezy nad 8,5 km mimo místní pokrytí používají jen reliéf.
Outside local coverage the application automatically reads Overture data.
Selections wider than 8.5 km outside local coverage use terrain only.

Rakousko, severovýchod Itálie, Chorvatsko a Victoria byly 17. 10. 2026 vyřazeny
z aktivních balíčků. Zdrojové údaje a úplný postup vytváření odvozených
databází zůstávají zveřejněné v method-v1/README.txt (ODbL 1.0, článek 4.6b).
The retired regional packs' source metadata and modification method remain
available in method-v1/README.txt under ODbL 1.0 section 4.6b.

Format (schema 3): each .osm-pack is a read-only SQLite 3 database.
metadata: key "pack" contains JSON provenance, coverage and data timestamp.
spatial: SQLite RTree (block id, minx, maxx, miny, maxy), WGS84 degrees.
blocks: (id, payload), payload = gzip-compressed newline-separated records.
Each record is a JSON array [minx,maxx,miny,maxy], then a TAB, then feature JSON.
Filter individual records by their bounds after selecting intersecting blocks.
Tree additions: method-trees-v1/README.txt contains the complete modification
method and exact source metadata. Mapped natural=tree nodes retain ID, lon, lat
and available tags. The source snapshot is unchanged.

Each feature is a mapped tree node, a way with original tags/geometry or a relation with
original way member IDs, roles and geometry. Contributor identities are omitted.
incomplete: spatial extents of relations with unavailable way members.
Queries overlapping these extents must not be presented as complete.
places: named settlement nodes for optional search fallback.
manifest.json: published versions, filenames, byte lengths, SHA-256 checksums,
extract coverage polygons and source URLs. Combined entries have "parts"
instead of a filename and cover the exact union of those extracts. Deduplicate
their features by type and OSM ID. File integrity must be verified
before publication; a partially uploaded file is not usable data.

Example decoding with standard Python libraries:
  import sqlite3, gzip, json
  db = sqlite3.connect('file:osm-cz-20261012.osm-pack?mode=ro', uri=True)
  for block_id, payload in db.execute('SELECT id,payload FROM blocks'):
      for line in gzip.decompress(payload).splitlines():
          bounds, feature = line.split(b'\t', 1)
          element = json.loads(feature)

Modifications: selection of features used by the model, conversion to full
coordinate geometries, lossless compression, spatial/search indexing.
Models make further changes (cropping, scaling and printable simplification).
Keep the exported attribution with shared models and printed products.