---
id: "gml_poslist"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["geo"]
langs: ["common"]
quality: 85
url: "https://registry.apicrafter.io/datatype/gml_poslist"
---

# GML coordinate list (`gml_poslist`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Coordinates of a GML geometry as the gml:pos and gml:posList elements write them: numbers separated by spaces, two (or three, with a height) per position, in the axis order of the reference system, as in 1680488.064 4846572.711.

- Personal data (PII): no
- Categories: Geographic identifiers (geo)
- Countries: global
- Languages: Common to most languages (common)

## Detection

Regular expression (Python `re`):

```
^-?\d+(?:\.\d+)?(?: -?\d+(?:\.\d+)?)+$
```

## Examples

- `1680488.064 4846572.711` — gml:pos, Monte Mario / Italy zone 1
- `123629.78 379674.57 123700.0 379674.57 123700.0 379700.0 123629.78 379674.57` — gml:posList
- `1680488.064,4846572.711` (invalid example) — Comma between the numbers

## Metacrafter rules

1 rules: 1 match the field name, 0 match values.

- `gmlposlistbyfield` (field, `common/geo.yaml`)

## Supported by tools

- `metacrafter`

## Sources

- doc: <https://www.ogc.org/standard/gml/>

## Quality

Score 85/100. Missing: mapping (Wikidata, Schema.org, ...), translation.

JSON: <https://registry.apicrafter.io/api/v1/datatypes/gml_poslist.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/geo/gml_poslist.yaml>