Contruction and material names

[RomainNouvel]

Presently, for the identification and management of the Construction objects, no name / description exist.

• it would be useful to add an attribute name[CharacterString]. for instance: "28cm brick wall".

Concerning the Material, What contains precisely the attribute referenceURI? Can we get the material name through it? or it is just an reference id?

[pgcipriano]

In INSPIRE Buildings Data Specs (http://inspire.ec.europa.eu/documents/Data_Specifications/INSPIRE_DataSpecification_BU_v3.0.pdf, p.82) there are the following codelists:

• materialOfFacade
• materialOfRoof
• materialOfStructure

Since some values are included in more than one codelist, it would be better to group them together in a unique one.

Maybe, the ReferenceURI could be something like this (example): <namespace:material xlink:href="http://someregistry.org/codelist/MaterialValue/wood/wood.en.xml"

[RomainNouvel]

Karl-Heinz, Joachim, I think you've included this attribute ReferenceURI in _AbstractMaterial. Does this attribute relate to existing references (kind of universal material database) here? If so, which one? Could you document it please?

[JoachimBenner]

Yes, we included this attribute, because gbXML also has such an attribute and it makes sense to optionally reference external sources containing additional material information. Of course, we do not have a specific database or external ressource in mind, why should a standard restrict this?

In principle, we do not need this attribute. _AbstractMaterial inherits all attributes and relations from _CityObject, and among these there is the relation "externalReference", pointing to the ExternalReference data type. This data type enables the specification of internet links, database connections, web services etc. I therefore propose to eliminate this attribute.

The same is true for the requested attributes "name" and "description" of a material. Any GML feature inherits these attributes from gml:AbstractFeature.

[RomainNouvel]

• You mean eliminate "ReferenceURI" in _AbstractMaterial, do you confirm?
• Concerning the attribute "name", I was speaking about the class "Construction" and not "_AbstractMaterial". Does this change anything?

[JoachimBenner]

• Yes, attribute "referenceURI" in "Abstractmaterial"
• No, also "Construction" is derived from "gml:AbstractFeature" and inherits gml:name and gml:description

[RomainNouvel]

ok, then we don't need any further attribute. Joachim, if you think that a "referenceURI" in "Abstractmaterial" do not need to be explicitly mentioned, feel free to delete it. I don't have a specific opinion on this case.

[JoachimBenner]

ok,I propose to integrate this small change into #38