Download Cellatica map in GML format
A map built from OpenStreetMap data, ready to download
Customize the map
Open this place's area in the constructor and adjust everything to your needs
Open in constructor →Map passport
What this map contains by default
This is how the map is built as-is — every setting can be changed in the constructor.
.gmlAbout GML
Map of Cellatica in GML: 1 118 buildings, 56 km of roads, 197 points of interest, 100% green areas — in the WGS 84 coordinate system, units are meters.
Which layers are in the file
This file for the selected area contains:
- Roads
- Buildings
- Water
- Greenery
- Points of interest
Geometry by layer
- Roads — lines (LineString) with OpenStreetMap tags
- Buildings — polygons (Polygon) with OpenStreetMap tags
- Water — waterbody polygons and watercourse lines with tags
- Greenery — green-zone polygons with tags
- Points of interest — points (Point) with names and tags
What the file carries
The GML file for Cellatica: the whole map comes as a single file, the file is plain text and opens in any editor, layers live inside the file as named entities, OpenStreetMap tags are kept as feature attributes.
File size
The expected size of the GML file for Cellatica is about 3.1 MB; the exact size depends on the chosen layers and area.
Coordinate systems
WGS 84 (EPSG:4326), selectable in the wizard
Units
Meters (projected in the chosen coordinate system)
| Category | GIS |
| File extension | .gml |
| Tier | Open Beta |
How many times GML was built in the last 90 days
- Cellatica
- 0
- Lombardy
- 0
- Whole site
- 10
- Median file size
- 1.2 MB
- Median build time
- 2.1 s
Medians are based on all builds on the site
How to use GML for Cellatica
- QGIS (free) — Layer → Add Vector Layer, pick the .gml: the file is read by the GML driver that ships with GDAL.
- ogr2ogr (GDAL) — the command ogr2ogr -f GPKG map.gpkg map.gml converts the document into GeoPackage, a shapefile or PostGIS.
- GeoServer and MapServer — load the data into a database through ogr2ogr and serve it onward from your own WFS service.
Programs that open GML
FAQ: GML for Cellatica
What is GML?
GML (Geography Markup Language) is an OGC standard for representing geographic features in XML.
Where is GML used?
GML is widely used in INSPIRE, WFS services, cadastral systems, and government GIS.
What exactly arrives in the file?
One .gml document: all the layers of the area collected into a single wfs:FeatureCollection. The feature element name repeats the layer name (roads, buildings, water), OSM tags sit inside as child properties, and every feature has a unique gml:id.
Is an XSD schema included?
A separate application schema is not shipped next to the file: the document follows the GML 3.2.1 structure with the GML and WFS namespaces. If the receiving system validates data against its own schema — the INSPIRE profile, for instance — conforming the document to it has to happen on your side, usually through FME or XSLT.
Which coordinate system does the GML arrive in?
WGS84 (EPSG:4326) — latitude and longitude with eight decimal places. Reprojecting into a local system is done afterwards in QGIS, ogr2ogr or the receiving GIS.
