diff options
Diffstat (limited to 'lv2/units/units.meta.ttl')
| -rw-r--r-- | lv2/units/units.meta.ttl | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/lv2/units/units.meta.ttl b/lv2/units/units.meta.ttl index c55b9de..bb40547 100644 --- a/lv2/units/units.meta.ttl +++ b/lv2/units/units.meta.ttl @@ -1,7 +1,9 @@ @prefix dcs: <http://ontologi.es/doap-changeset#> . @prefix doap: <http://usefulinc.com/ns/doap#> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . +@prefix units: <http://lv2plug.in/ns/extensions/units#> . <http://lv2plug.in/ns/extensions/units> a doap:Project ; @@ -106,5 +108,47 @@ ] ] ; doap:developer <http://plugin.org.uk/swh.xrdf#me> ; - doap:maintainer <http://drobilla.net/drobilla#me> . + doap:maintainer <http://drobilla.net/drobilla#me> ; + lv2:documentation """ + +This is a vocabulary for units typically used for control values in audio +processing. + +For example, to say that a gain control is in decibels: + + :::turtle + @prefix units: <http://lv2plug.in/ns/extensions/units#> . + @prefix eg: <http://example.org/> . + + eg:plugin lv2:port [ + a lv2:ControlPort , lv2:InputPort ; + lv2:index 0 ; + lv2:symbol "gain" ; + lv2:name "Gain" ; + units:unit units:db + ] . + +Using the same form, plugins may also specify one-off units inline, to give +better display hints to hosts: + + :::turtle + eg:plugin lv2:port [ + a lv2:ControlPort , lv2:InputPort ; + lv2:index 0 ; + lv2:symbol "frob" ; + lv2:name "frob level" ; + units:unit [ + a units:Unit ; + rdfs:label "frobnication" ; + units:symbol "fr" ; + units:render "%f f" + ] + ] . + +It is also possible to define conversions between various units, which makes it +possible for hosts to automatically convert between units where possible. The +units defined in this extension include conversion definitions where it makes +sense to do so. + +"""^^lv2:Markdown . |