393 lines
8.1 KiB
Turtle
393 lines
8.1 KiB
Turtle
@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
|
|
@prefix owl: <http://www.w3.org/2002/07/owl#> .
|
|
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
|
|
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
|
|
@prefix units: <http://lv2plug.in/ns/extensions/units#> .
|
|
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
|
|
|
|
<http://lv2plug.in/ns/extensions/units>
|
|
a owl:Ontology ;
|
|
owl:imports <http://lv2plug.in/ns/lv2core> ;
|
|
rdfs:seeAlso <units.h> ,
|
|
<lv2-units.doap.ttl> ;
|
|
lv2:documentation """
|
|
<p>This vocabulary defines a number of units for use in audio processing.</p>
|
|
|
|
<p>For example, to say that a gain port's value is in decibels (units:db)</p>
|
|
<pre class="turtle-code">
|
|
@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
|
|
] .
|
|
</pre>
|
|
|
|
<p>Using the same form, plugins may also specify one-off units inline, to give
|
|
better display hints to hosts:</p>
|
|
<pre class="turtle-code">
|
|
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"
|
|
]
|
|
] .
|
|
</pre>
|
|
|
|
<p>It is also possible to define conversions between various units, which makes
|
|
it possible for hosts to automatically and generically convert from a given
|
|
unit to a desired unit. The units defined in this extension include conversion
|
|
definitions where it makes sense to do so.</p>
|
|
""" .
|
|
|
|
units:Unit
|
|
a rdfs:Class ,
|
|
owl:Class ;
|
|
rdfs:label "Unit" ;
|
|
rdfs:comment "A unit for LV2 port data" .
|
|
|
|
units:unit
|
|
a rdf:Property ,
|
|
owl:ObjectProperty ;
|
|
rdfs:range units:Unit ;
|
|
rdfs:label "unit" ;
|
|
rdfs:comment "The unit used by the value of a port or parameter." .
|
|
|
|
units:render
|
|
a rdf:Property ,
|
|
owl:DatatypeProperty ;
|
|
rdfs:label "unit format string" ;
|
|
rdfs:domain units:Unit ;
|
|
rdfs:range xsd:string ;
|
|
rdfs:comment """A printf format string for rendering a value (eg. "%f dB").""" .
|
|
|
|
units:symbol
|
|
a rdf:Property ,
|
|
owl:DatatypeProperty ;
|
|
rdfs:label "unit symbol" ;
|
|
rdfs:domain units:Unit ;
|
|
rdfs:range xsd:string ;
|
|
rdfs:comment "The abbreviated symbol for the unit (e.g. dB)." .
|
|
|
|
units:Conversion
|
|
a rdfs:Class ,
|
|
owl:Class ;
|
|
rdfs:subClassOf [
|
|
a owl:Restriction ;
|
|
owl:onProperty units:to ;
|
|
owl:cardinality 1 ;
|
|
rdfs:comment "A conversion MUST have exactly 1 units:to property."
|
|
] ;
|
|
rdfs:label "Conversion" ;
|
|
rdfs:comment "A conversion from one unit to another." .
|
|
|
|
units:conversion
|
|
a rdf:Property ,
|
|
owl:ObjectProperty ;
|
|
rdfs:domain units:Unit ;
|
|
rdfs:range units:Conversion ;
|
|
rdfs:label "conversion" ;
|
|
rdfs:comment "A conversion from this unit to another." .
|
|
|
|
units:prefixConversion
|
|
a rdf:Property ,
|
|
owl:ObjectProperty ;
|
|
rdfs:subPropertyOf units:conversion ;
|
|
rdfs:domain units:Unit ;
|
|
rdfs:range units:Conversion ;
|
|
rdfs:label "prefix conversion" ;
|
|
rdfs:comment """A conversion from this unit to the same unit but with a different SI prefix (e.g. Hz to kHz).""" .
|
|
|
|
units:to
|
|
a rdf:Property ,
|
|
owl:ObjectProperty ;
|
|
rdfs:domain units:Conversion ;
|
|
rdfs:range units:Unit ;
|
|
rdfs:label "conversion target" ;
|
|
rdfs:comment "The target unit this conversion converts to." .
|
|
|
|
units:factor
|
|
a rdf:Property ,
|
|
owl:DatatypeProperty ;
|
|
rdfs:domain units:Conversion ;
|
|
rdfs:label "conversion factor" ;
|
|
rdfs:comment """The factor to multiply the source value by in order to convert to the target unit.""" .
|
|
|
|
units:s
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 0.0166666666 ;
|
|
units:to units:min
|
|
] ;
|
|
rdfs:label "seconds" ;
|
|
units:prefixConversion [
|
|
units:factor 1000 ;
|
|
units:to units:ms
|
|
] ;
|
|
units:render "%f s" ;
|
|
units:symbol "s" .
|
|
|
|
units:ms
|
|
a units:Unit ;
|
|
rdfs:label "milliseconds" ;
|
|
units:prefixConversion [
|
|
units:factor 0.001 ;
|
|
units:to units:s
|
|
] ;
|
|
units:render "%f ms" ;
|
|
units:symbol "ms" .
|
|
|
|
units:min
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 60.0 ;
|
|
units:to units:s
|
|
] ;
|
|
rdfs:label "minutes" ;
|
|
units:render "%f mins" ;
|
|
units:symbol "min" .
|
|
|
|
units:bar
|
|
a units:Unit ;
|
|
rdfs:label "bars" ;
|
|
units:render "%f bars" ;
|
|
units:symbol "bars" .
|
|
|
|
units:beat
|
|
a units:Unit ;
|
|
rdfs:label "beats" ;
|
|
units:render "%f beats" ;
|
|
units:symbol "beats" .
|
|
|
|
units:frame
|
|
a units:Unit ;
|
|
rdfs:label "audio frames" ;
|
|
units:render "%f frames" ;
|
|
units:symbol "frames" .
|
|
|
|
units:m
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 39.37 ;
|
|
units:to units:inch
|
|
] ;
|
|
rdfs:label "metres" ;
|
|
units:prefixConversion [
|
|
units:factor 100 ;
|
|
units:to units:cm
|
|
] , [
|
|
units:factor 1000 ;
|
|
units:to units:mm
|
|
] , [
|
|
units:factor 0.001 ;
|
|
units:to units:km
|
|
] ;
|
|
units:render "%f m" ;
|
|
units:symbol "m" .
|
|
|
|
units:cm
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 0.3937 ;
|
|
units:to units:inch
|
|
] ;
|
|
rdfs:label "centimetres" ;
|
|
units:prefixConversion [
|
|
units:factor 0.01 ;
|
|
units:to units:m
|
|
] , [
|
|
units:factor 10 ;
|
|
units:to units:mm
|
|
] , [
|
|
units:factor 0.00001 ;
|
|
units:to units:km
|
|
] ;
|
|
units:render "%f cm" ;
|
|
units:symbol "cm" .
|
|
|
|
units:mm
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 0.03937 ;
|
|
units:to units:inch
|
|
] ;
|
|
rdfs:label "millimetres" ;
|
|
units:prefixConversion [
|
|
units:factor 0.001 ;
|
|
units:to units:m
|
|
] , [
|
|
units:factor 0.1 ;
|
|
units:to units:cm
|
|
] , [
|
|
units:factor 0.000001 ;
|
|
units:to units:km
|
|
] ;
|
|
units:render "%f mm" ;
|
|
units:symbol "mm" .
|
|
|
|
units:km
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 0.62138818 ;
|
|
units:to units:mile
|
|
] ;
|
|
rdfs:label "kilometres" ;
|
|
units:prefixConversion [
|
|
units:factor 1000 ;
|
|
units:to units:m
|
|
] , [
|
|
units:factor 100000 ;
|
|
units:to units:cm
|
|
] , [
|
|
units:factor 1000000 ;
|
|
units:to units:mm
|
|
] ;
|
|
units:render "%f km" ;
|
|
units:symbol "km" .
|
|
|
|
units:inch
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 2.54 ;
|
|
units:to units:cm
|
|
] ;
|
|
rdfs:label "inches" ;
|
|
units:render """%f\"""" ;
|
|
units:symbol "in" .
|
|
|
|
units:mile
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 1.6093 ;
|
|
units:to units:km
|
|
] ;
|
|
rdfs:label "miles" ;
|
|
units:render "%f mi" ;
|
|
units:symbol "mi" .
|
|
|
|
units:db
|
|
a units:Unit ;
|
|
rdfs:label "decibels" ;
|
|
units:render "%f dB" ;
|
|
units:symbol "dB" .
|
|
|
|
units:pc
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 0.01 ;
|
|
units:to units:coef
|
|
] ;
|
|
rdfs:label "percent" ;
|
|
units:render "%f%%" ;
|
|
units:symbol "%" .
|
|
|
|
units:coef
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 100 ;
|
|
units:to units:pc
|
|
] ;
|
|
rdfs:label "coefficient" ;
|
|
units:render "* %f" ;
|
|
units:symbol "" .
|
|
|
|
units:hz
|
|
a units:Unit ;
|
|
rdfs:label "hertz" ;
|
|
units:prefixConversion [
|
|
units:factor 0.001 ;
|
|
units:to units:khz
|
|
] , [
|
|
units:factor 0.000001 ;
|
|
units:to units:mhz
|
|
] ;
|
|
units:render "%f Hz" ;
|
|
units:symbol "Hz" .
|
|
|
|
units:khz
|
|
a units:Unit ;
|
|
rdfs:label "kilohertz" ;
|
|
units:prefixConversion [
|
|
units:factor 1000 ;
|
|
units:to units:hz
|
|
] , [
|
|
units:factor 0.001 ;
|
|
units:to units:mhz
|
|
] ;
|
|
units:render "%f kHz" ;
|
|
units:symbol "kHz" .
|
|
|
|
units:mhz
|
|
a units:Unit ;
|
|
rdfs:label "megahertz" ;
|
|
units:prefixConversion [
|
|
units:factor 1000000 ;
|
|
units:to units:hz
|
|
] , [
|
|
units:factor 0.001 ;
|
|
units:to units:khz
|
|
] ;
|
|
units:render "%f MHz" ;
|
|
units:symbol "MHz" .
|
|
|
|
units:bpm
|
|
a units:Unit ;
|
|
rdfs:label "beats per minute" ;
|
|
units:prefixConversion [
|
|
units:factor 0.0166666666 ;
|
|
units:to units:hz
|
|
] ;
|
|
units:render "%f BPM" ;
|
|
units:symbol "BPM" .
|
|
|
|
units:oct
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 12.0 ;
|
|
units:to units:semitone12TET
|
|
] ;
|
|
rdfs:label "octaves" ;
|
|
units:render "%f octaves" ;
|
|
units:symbol "oct" .
|
|
|
|
units:cent
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 0.01 ;
|
|
units:to units:semitone12TET
|
|
] ;
|
|
rdfs:label "cents" ;
|
|
units:render "%f ct" ;
|
|
units:symbol "ct" .
|
|
|
|
units:semitone12TET
|
|
a units:Unit ;
|
|
units:conversion [
|
|
units:factor 0.083333333 ;
|
|
units:to units:oct
|
|
] ;
|
|
rdfs:label "semitones" ;
|
|
units:render "%f semi" ;
|
|
units:symbol "semi" .
|
|
|
|
units:degree
|
|
a units:Unit ;
|
|
rdfs:label "degrees" ;
|
|
units:render "%f deg" ;
|
|
units:symbol "deg" .
|
|
|
|
units:midiNote
|
|
a units:Unit ;
|
|
rdfs:label "MIDI note" ;
|
|
units:render "MIDI note %d" ;
|
|
units:symbol "note" .
|