puzzled (unit:YR as datatype revisited)
Bohms, H.M. (Michel)
I imported qudt:Unit and all its instances:
They are all there including YR:
I also import an ontology stating:
qudt:Unit
rdfs:subClassOf rdfs:Datatype ;
.
I now have a property called residualLife which I want to constrain in a shape.
When I want to select my unit:YR at sh:datatype I get:
So qudt:Unit is there but without all the instances!
Must be something very simple but what?
Thx again! Michel
Ps My guess that it is related to the prefixes in the files containing the actual units.
Eg in the file VOCAB_QUDT-UNITS-SPACE-AND-TIME-v2.0.ttl (the latest from github) we have:
# baseURI: http://qudt.org/2.0/vocab/unit/space-and-time
# imports: http://qudt.org/2.0/schema/qudt
# imports: http://qudt.org/2.0/schema/qudt/science
# imports: http://qudt.org/2.0/vocab/quantitykind/base
# imports: http://qudt.org/2.0/vocab/unit/base
# imports: http://www.linkedmodel.org/schema/vaem
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix dimension: <http://qudt.org/vocab/dimension/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix quantitykind: <http://qudt.org/vocab/quantitykind/> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix vaem: <http://www.linkedmodel.org/schema/vaem#> .
@prefix voag: <http://voag.linkedmodel.org/schema/voag#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
Where maybe the second red should be the same as the first red?
But then…if I have multiple such files (ie also VOCAB_QUDT-UNITS-MECHANICS-v2.0.ttl) can I in the end use units from these different files?
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Irene Polikoff
On Nov 22, 2017, at 7:19 AM, Bohms, H.M. (Michel) <michel...@tno.nl> wrote:
I imported qudt:Unit and all its instances:
<image001.png>
They are all there including YR:
<image002.png>
I also import an ontology stating:qudt:Unitrdfs:subClassOf rdfs:Datatype ;.I now have a property called residualLife which I want to constrain in a shape.When I want to select my unit:YR at sh:datatype I get:
<image005.jpg>
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<VOCAB_QUDT-UNITS-SPACE-AND-TIME-v2.0.ttl>
Bohms, H.M. (Michel)
I saw this hint too indeed but when I just browse to it (in the same ontology) it is there:
and you can also see it is imported:
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Bohms, H.M. (Michel)
Similar to the other question on units I see in latest qudt ontology:
# baseURI: http://qudt.org/2.0/schema/qudt
# imports: http://www.linkedmodel.org/schema/dtype
# imports: http://www.linkedmodel.org/schema/vaem
# imports: http://www.w3.org/2004/02/skos/core
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix dtype: <http://www.linkedmodel.org/schema/dtype#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix provo: <http://www.w3.org/ns/prov#> .
@prefix quantitykind: <http://qudt.org/vocab/quantitykind/> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix vaem: <http://www.linkedmodel.org/schema/vaem#> .
@prefix voag: <http://voag.linkedmodel.org/schema/voag#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
So maybe prefix is wrong here too?
Bohms, H.M. (Michel)
When I change the prefix to the baseURIs the globe at least disappears
No units yet, but that is likely caused by the same issue for the unit files…..
I’ll see if that helps, tbc
Bohms, H.M. (Michel)
Ok, so it works again with “add existing…”
(by doing all the changes to the qudt2 files as attached).
But still, not using “Add existing” but empty line, and then filling in manually “unit:YR” gives a red text that cannot be chosen…..
(hint: if you “select existing..” first and then manually backspace to nothing and type unit:YR it staus black….)
Leaves further:
I have now two (or more) files with units, both having their own/different unit prefix. How can I reuse both in another ontology: do I need to make two diff. prefixes like unit-st and unit-m for resp. reuse of space-time and mechanical units? Guess you have some solution for this in mind for qudt2 architecture….
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Sent: Wednesday, November 22, 2017 3:22 PM
To: topbrai...@googlegroups.com
Subject: Re: [topbraid-users] puzzled (unit:YR as datatype revisited)
Your last screenshot shows quit:Unit with a globe icon. Typically, when this happens it means that the type of the resource is unknown.
Irene Polikoff
On Nov 22, 2017, at 10:06 AM, Bohms, H.M. (Michel) <michel...@tno.nl> wrote:
Ok, so it works again with “add existing…”(by doing all the changes to the qudt2 files as attached).But still, not using “Add existing” but empty line, and then filling in manually “unit:YR” gives a red text that cannot be chosen…..
<image001.png>
(hint: if you “select existing..” first and then manually backspace to nothing and type unit:YR it staus black….)Leaves further:I have now two (or more) files with units, both having their own/different unit prefix. How can I reuse both in another ontology: do I need to make two diff. prefixes like unit-st and unit-m for resp. reuse of space-time and mechanical units? Guess you have some solution for this in mind for qudt2 architecture….
Senior Data Scientist
<README.TXT>
Bohms, H.M. (Michel)
Right, so can you confirm this is at the moment an issue for qudt2 files?
Say 2 files both having ‘unit’ prefix but related to a different uri (although hsaring large part of that uri)
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