SU - AreaStatisticalUnit geometry type definition is not correct

[ulbrichtd]

Change proposal description

According to Commission Regulation (EU) No 1253/2013 the geometry type of AreaStatisticalUnit must be GM_MultiSurface (constraint on AreaStatisticalUnit in section 1.3.1.2.).

The document Data Specification on Statistical Units - Technical Guidelines is currently missing this information. The UML class diagram for "Vector package" (figure 7 in section 5.3.1.2.3) suggests that GM_Object is allowed to describe the geometry.

Addressed TG

Data Specification on Statistical Units - Technical Guidelines

Location

Data Specification on Statistical Units - Technical Guidelines

• UML class diagram for "Vector package" (figure 7 in section 5.3.1.2.3)
• a constraint on AreaStatisticalUnit is missing

Issue faced

The INSPIRE validator enforces at the moment geometries as GM_MultiSurface and does not allow GM_Surface. According to the Commission Regulation (EU) No 1253/2013 this is correct. According to the Data Specification on Statistical Units - Technical Guidelines GM_Surface should be allowed to describe the geometry.

Proposed solution

Update UML diagram mentioned above and/or add a constraint on AreaStatisticalUnit.

Pull request

Not available as the TG is not yet available in the repository.

Additional information

Impact on INSPIRE validator

Linked issue

https://github.com/INSPIRE-MIF/helpdesk-validator/issues/714