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diff --git a/rdf/ingen.ttl b/rdf/ingen.ttl new file mode 100644 index 00000000..dc669b7c --- /dev/null +++ b/rdf/ingen.ttl @@ -0,0 +1,189 @@ +# Ingen Ontology +# Copyright (C) 2008 David Robillard <http://drobilla.net> +# +# This document describes classes and properties that define a "patch" or +# "graph" representing a dataflow program or system. It borrows heavily +# from the LV2 specification <http://lv2plug.in> which describes plugins +# for signal processing. +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sublicense, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR +# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +# OTHER DEALINGS IN THE SOFTWARE. + +@prefix : <http://drobilla.net/ns/ingen#> . +@prefix doap: <http://usefulinc.com/ns/doap#> . +@prefix foaf: <http://xmlns.com/foaf/0.1/> . +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . +@prefix xsd: <http://www.w3.org/2001/XMLSchema> . + +<> a lv2:Specification ; + doap:name "Ingen" ; + doap:homepage <http://drobilla.net/software/ingen> ; + doap:maintainer [ a foaf:Person ; + foaf:name "David Robillard" ; + foaf:homepage <http://drobilla.net/> ; + rdfs:seeAlso <http://drobilla.net/drobilla.rdf> + ] . + + +############ +## Plugin ## +############ + +:Plugin a rdfs:Class ; + rdfs:label "Plugin" ; + rdfs:comment """ +A class which can be instantiated into a :Node. A plugin has a set of input +and output "ports". In practise this class is semantically equivalent to +lv2:Plugin, it only exists to allow the ingen ontology to be useful for +"plugins" that aren't semantically LV2 plugins. See the LV2 specification +for details about the required properties (rdf:type, doap:name, doap:license, +and lv2:port). +""" . + +lv2:Plugin rdfs:subClassOf :Plugin . + + +########### +## Patch ## +########### + +:Patch a rdfs:Class ; + rdfs:subClassOf :Plugin ; + rdfs:label "Patch" ; + rdfs:comment """ +A collection of Nodes connected together form a Patch, which is itself +a :Plugin (and thus can be part of another patch, and so on) +""" . + +:node a rdf:Property ; + rdfs:domain :Patch ; + rdfs:range :Node ; + rdfs:label "node" ; + rdfs:comment "Signifies a patch contains some node." . + +:polyphony a rdf:Property ; + rdfs:domain :Patch ; + rdfs:range xsd:integer ; + rdfs:label "Polyphony" ; + rdfs:comment """ +The amount of polyphony in a Patch. This defines the number of voices +present on all :polyphonic children of this patch. Because a Patch is +also a Node, a Patch may have both :polyphony and :polyphonic properties. +These specify different things: :polyphony specifies the voice count +of the Patch's children, and :polyphonic specifies whether the patch is +seen as polyphonic to the Patch's parent. +""" . + + +############ +## Object ## +############ + +:Object a rdfs:Class ; + rdfs:label "Ingen Object" ; + rdfs:comment """ +A signal processing object which is part of a Patch. An Object MUST have +exactly one lv2:symbol property. This MAY be inferred from the URI where +possible (e.g. in a system which publishes node URIs in a heirarchial way +such that the parent can be 'chopped' to get a legal symbol). +""" . + +:polyphonic a rdf:Property ; + rdfs:domain :Object ; + rdfs:range xsd:boolean ; + rdfs:label "Polyphonic" ; + rdfs:comment """ +Signifies this object should be replicated when it is part of a polyphonic +patch. The amount of polyphony (i.e. the number of voices) is determined +by the :polyphony property of the containing patch. This is a boolean +property which defines whether the parent can access each voice individuall: +All objects within a patch are either polyphonic or not from their parent's +perspective. An Object may itself have "internal" polyphony but not be +polyphonic according to this property, if those voices are mixed down. +""" . + + +########## +## Node ## +########## + +:Node a rdfs:Class ; + rdfs:subClassOf :Object ; + rdfs:label "Node" ; + rdfs:comment """ +An instance of a Plugin. Since a Patch is a Plugin, an instance of a Patch +is also a Node. A Node inherits all the properties of the plugin of which +it is an instance, but may have properties of its own: any properties of +the node take precedence over properties of the node's plugin. This way a +node can be expressed as a lightweight set of changes (e.g. input values) +from its plugin or patch which may be defined elsewhere. + +A node MUST have at least one rdf:instanceOf property which is a subclass +of :Plugin. When there are many such properties, an applications SHOULD +use the most specific class it understands. +""" . + +:enabled a rdf:Property ; + rdfs:domain :Node ; + rdfs:range xsd:boolean ; + rdfs:label "Enabled" ; + rdfs:comment "Signifies the node is or should be running." . + + +########## +## Port ## +########## + +:Port a rdfs:Class ; + rdfs:subClassOf :Object ; + rdfs:label "Port" ; + rdfs:comment """ +A Port is an input or output on a Node. It is implicitly an instance of the +corresponding port on that Node's plugin (specified with rdf:instanceOf). +A Port MUST have a legal lv2:symbol in the exact way a Node must, see :Node +documentation for details. Ports inherit properties from the Port on their +parent's Plugin in the exact way Nodes inherit properties from their Plugin. +""" . + + +################ +## Connection ## +################ + +:Connection a rdfs:Class ; + rdfs:label "Connection" ; + rdfs:comment """ +A connection between two ports. Patches have a set of connections which +define how its component nodes and ports are connected. A Connection MUST +have exactly one :source property and exactly one :destination property. +""" . + +:source a rdf:Property ; + rdfs:domain :Connection ; + rdfs:range :Port ; + rdfs:label "Source" ; + rdfs:comment "The source/sending port of this connection" . + +:destination a rdf:Property ; + rdfs:domain :Connection ; + rdfs:range :Port ; + rdfs:label "Destination" ; + rdfs:comment "The destination/receiving/sink port of this connection" . + |