simpleType glossaryChoices

type	restriction of xs:NMTOKEN
properties	base  xs:NMTOKEN
facets	Kind  Value  Annotation enumeration  activate appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Activate"/>                         cause a #sensorNode to generate an isActive #event                     enumeration  ancestor appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Ancestor"/>                         #node which is an antecedent of another node in the #transformationHierarchy                     enumeration  AudioGraph appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#AudioGraph"/> <xs:attribute name="alias" type="xs:string" default="audio graph"/>                         structured collection of nodes that process audio inputs and outputs                     enumeration  author appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Author"/>                         person or agent that creates an #X3DFile                     enumeration  AuthoringTool appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#AuthoringTool"/> <xs:attribute name="alias" type="xs:string" default="authoring tool"/>                         see #generator                     enumeration  avatar appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Avatar"/>                         abstract representation of the #user in an X3D #world                     enumeration  bearing appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Bearing"/>                         straight line passing through the #pointer location in the direction of the pointer                     enumeration  BindableNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#BindableNode"/> <xs:attribute name="alias" type="xs:string" default="bindable node"/>                         #node that may have many #instances in a #sceneGraph but only one instance may be active at any instant of #time                     enumeration  browser appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Browser"/>                         computer program that interprets 3X3DFiles, presents their content to a user on a #displayDevice, and allows the user to interact with #worlds defined by X3D files by means of a user interface                     enumeration  BrowserExtension appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#BrowserExtension"/> <xs:attribute name="alias" type="xs:string" default="browser extension"/>                         #nodes defined using the prototyping mechanism that are understood only by certain #browsers                     enumeration  BuiltInNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Built-InNode"/> <xs:attribute name="alias" type="xs:string" default="built-in node"/>                         #node of a #type explicitly defined in this document                     enumeration  callback appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Callback"/>                         function defined in a #scriptingLanguage to which #events are passed                     enumeration  child appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Child"/>                         instance of a #ChildrenNode                     enumeration  ChildrenNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ChildrenNode"/> <xs:attribute name="alias" type="xs:string" default="children node"/>                         one of a set of #nodeTypes, instances of which can be collected in a group to share specific properties dependent on the type of the #GroupingNode                     enumeration  ClientSystem appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ClientSystem"/> <xs:attribute name="alias" type="xs:string" default="client system"/>                         computer system, attached to a #network, that relies on another computer (the server) for essential processing functions                     enumeration  CollisionProxy appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#CollisionProxy"/> <xs:attribute name="alias" type="xs:string" default="collision proxy"/>                         #node used as a substitute for all of a Collision node's children during collision detection                     enumeration  ColourModel appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ColourModel"/> <xs:attribute name="alias" type="xs:string" default="colour model"/> <xs:attribute name="alias" type="xs:string" default="color model"/>                         characterization of a colour space in terms of explicit parameters                     enumeration  culling appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Culling"/>                         process of identifying #objects or parts of objects which do not need to be processed further by the #browser in order to produce the desired view of a #world                     enumeration  descendant appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Descendant"/>                         #node which descends from another node in the #transformationHierarchy (a #ChildrenNode)                     enumeration  DisplayDevice appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#DisplayDevice"/> <xs:attribute name="alias" type="xs:string" default="display device"/>                         graphics device on which X3D #worlds may be rendered                     enumeration  DragSensor appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#DragSensor"/> <xs:attribute name="alias" type="xs:string" default="drag sensor"/>                         #pointingDeviceSensor that causes #events to be generated in response to sensor-dependent pointer motions                     enumeration  EnvironmentalSensor appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#EnvironmentalSensor"/> <xs:attribute name="alias" type="xs:string" default="environmental sensor"/>                         sensor #node that generates #events based on the location of the viewpoint in the #world or in relation to #objects in the world                     enumeration  event appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Event"/>                         message sent from one #node to another as defined by a #ROUTE                     enumeration  EventCascade appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#EventCascade"/> <xs:attribute name="alias" type="xs:string" default="event cascade"/>                         sequence of @events initiated by a script or sensor event and propagated from #node to node along one or more #routes all of which are considered to have occurred simultaneously                         <!-- (see Concepts, 4.4.8.3 Execution model) --> enumeration  ExecutionModel appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ExecutionModel"/> <xs:attribute name="alias" type="xs:string" default="execution model"/>                         rules governing how #events are processed by #browsers and scripts                     enumeration  ExternaPrototype appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ExternaPrototype"/> <xs:attribute name="alias" type="xs:string" default="external prototype"/>                         #prototype defined in an external file and referenced by a #URL                     enumeration  field appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Field"/>                         property or attribute of a #node                     enumeration  FieldName appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#FieldName"/> <xs:attribute name="alias" type="xs:string" default="field name"/>                         identifier of a #field                     enumeration  frame appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Frame"/>                         single rendering of a #world on a #displayDevice or a single time-step in a simulation                     enumeration  generator appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Generator"/>                         computer program which creates #X3DFiles                     enumeration  GeometricPropertyNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#GeometricPropertyNode"/> <xs:attribute name="alias" type="xs:string" default="geometric property node"/>                         #node defining the properties of a specific geometry node                     enumeration  GeometryNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#GeometryNode"/> <xs:attribute name="alias" type="xs:string" default="geometry node"/>                         #node containing mathematical descriptions of points, lines, surfaces, text strings and solids                     enumeration  grab appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Grab"/>                         receive #events from activated #pointingDevices                     enumeration  GroupingNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#GroupingNode"/> <xs:attribute name="alias" type="xs:string" default="grouping node"/>                         one of a set of #nodeTypes which include a list of nodes, referred to as its #ChildrenNodes                     enumeration  HostApplication appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#HostApplication"/> <xs:attribute name="alias" type="xs:string" default="host application"/>                         client application with which the #browser communicates using the SAI                     enumeration  image appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Image"/>                         two-dimensional (2D) rectangular array of pixel values                     enumeration  immersive appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Immersive"/>                         creating the illusion of being inside a computer-generated scene                     enumeration  Inlining appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#In-lining"/> <xs:attribute name="alias" type="xs:string" default="in-lining"/>                         mechanism by which one #X3DFile is hierarchically included in another                     enumeration  instance appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Instance"/>                         the #node created by an #instantiation                     enumeration  instantiation appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Instantiation"/>                         the creation of a #node based on its #nodeType                     enumeration  InterpolatorNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#InterpolatorNode"/> <xs:attribute name="alias" type="xs:string" default="interpolator node"/>                         #node that defines a piece-wise or smoothly continuous interpolation                     enumeration  intranet appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Intranet"/>                         private #network that uses the same protocols and standards as the Internet                     enumeration  LevelOfDetail appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#LevelOfDetail"/> <xs:attribute name="alias" type="xs:string" default="level of detail"/>                         amount of detail or complexity which is displayed at any particular #time for any particular #object                     enumeration  LineTerminator appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#LineTerminator"/> <xs:attribute name="alias" type="xs:string" default="line terminator"/>                         linefeed character (0x0A) and/or carriage return character (0x0D)                     enumeration  loop appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Loop"/>                         sequence of #events which would result in a specific event generator sending more than one event with the same #timestamp                     enumeration  multimedia appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Multimedia"/>                         integrated presentation, typically on a computer, of content of various types, such as computer graphics, audio, and videon                     enumeration  network appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Network"/>                         set of interconnected computers                     enumeration  node appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Node"/> <xs:attribute name="synonym" type="xs:string" default="object"/>                         fundamental component of a #sceneGraph that defines model information, such as graph structure, geometry, animation, interaction, object metadata, rendering, or display                     enumeration  nodeType appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#NodeType"/> <xs:attribute name="alias" type="xs:string" default="node type"/>                         characteristic of each node that describes, in general, its particular semantics                     enumeration  object appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Object"/> <xs:attribute name="synonym" type="xs:string" default="node"/>                         collection of data and procedures, packaged according to the rules and syntax defined in this document.                         NOTE  This term is usually synonymous with #node.                     enumeration  orderOfPreference appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#OrderOfPreference"/> <xs:attribute name="alias" type="xs:string" default="order of preference"/>                         order (specified by the user) in which a list of #field values is processed by the #browser                     enumeration  panorama appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Panorama"/>                         background texture that is placed behind all geometry in the scene and in front of the ground and sky                     enumeration  parent appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Parent"/>                         #node which is an instance of a #GroupingNode                     enumeration  pixel appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Pixel"/>                         one element of an #image specified as a matrix of colour elements                     enumeration  pointer appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Pointer"/>                         location and direction in the #virtualWorld defined by the #pointingDevice with which the #user is currently interacting with the virtual world                     enumeration  pointingDevice appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#PointingDevice"/> <xs:attribute name="alias" type="xs:string" default="pointing device"/>                         hardware device connected to the #user's computer by which the user directly controls the location and direction of the #pointer                     enumeration  pointingDeviceSensor appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#PointingDeviceSensor"/> <xs:attribute name="alias" type="xs:string" default="pointing device sensor"/>                         sensor #node that generates #events based on #user actions, such as #pointingDevice motions or button activations                     enumeration  polyline appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Polyline"/>                         piecewise linear curve                     enumeration  profile appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Profile"/>                         named collection of criteria for functionality and conformance that defines an implementable subset of a standard                     enumeration  prototype appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Prototype"/>                         definition of a new #nodeType in terms of the nodes defined in this document                     enumeration  prototyping appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Prototyping"/>                         mechanism for extending the set of #nodeTypes from within a #X3DFile                     enumeration  ROUTE appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ROUTE"/>                         connection between a #node generating an #event and a node receiving the event                     enumeration  sceneGraph appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SceneGraph"/> <xs:attribute name="alias" type="xs:string" default="scene graph"/>                         ordered set of #nodes and #statements                     enumeration  script appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Script"/>                         set of procedural functions normally executed as part of an #eventCascade                     enumeration  scripting appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Scripting"/>                         process of creating or referring to a #script                     enumeration  sensorNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SensorNode"/> <xs:attribute name="alias" type="xs:string" default="sensor node"/>                         #node that enables the #user to interact with the #world in the scene graph hierarchy                     enumeration  separatorCharacter appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SeparatorCharacter"/> <xs:attribute name="alias" type="xs:string" default="separator character"/>                         #UTF-8 character used to separate syntactical entities in an #X3DFile                     enumeration  sibling appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Sibling"/>                         #node which shares a #parent with other nodes                     enumeration  simulationTick appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SimulationTick"/> <xs:attribute name="alias" type="xs:string" default="simulation tick"/>                         smallest time unit capable of being identified in a digital simulation of analog time                     enumeration  slerp appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#slerp"/>                         spherical linear interpolation for animating 3D rotation values                     enumeration  specialGroupNode appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SpecialGroupNode"/> <xs:attribute name="alias" type="xs:string" default="special group node"/>                         grouping node that exhibits special behaviour ( e.g., Switch or LOD)                     enumeration  statement appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Statement"/>                         A statement specifies fundamental scene-related information                     enumeration  texel appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Texel"/>                         #pixel in an #image used as a #texture                     enumeration  texture appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Texture"/>                         image used to create visual appearance effects when applied to geometry nodes                     enumeration  textureCoordinates appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#TextureCoordinates"/> <xs:attribute name="alias" type="xs:string" default="texture coordinates"/>                         set of coordinates used to map a #texture to geometry                     enumeration  time appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Time"/>                         monotonically increasing value generated by a node                     enumeration  timestamp appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Timestamp"/>                         that part of an #event that describes the #time the event occurred and that caused the message to be sent                     enumeration  transformationHierarchy appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#TransformationHierarchy"/> <xs:attribute name="alias" type="xs:string" default="transformation hierarchy"/>                         subset of the #sceneGraph consisting of #nodes that have well-defined coordinate systems                     enumeration  transparencyChunk appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#TransparencyChunk"/> <xs:attribute name="alias" type="xs:string" default="transparency chunk"/>                         section of a PNG file containing transparency information (derived from ISO/IEC 15948)                     enumeration  traverse appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Traverse"/>                         process the nodes in a scene graph in the correct order                     enumeration  user appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#User"/>                         person or agent who uses and interacts with #X3DFiles by means of a #browser                     enumeration  viewer appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Viewer"/>                         location, direction, and viewing angle in a #virtualWorld that determines the portion of the virtual world presented by the #browser to the #user                     enumeration  virtualWorld appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#VirtualWorld"/> <xs:attribute name="alias" type="xs:string" default="virtual world"/> <xs:attribute name="alias" type="xs:string" default="world"/>                         See #world.                     enumeration  whiteSpace appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#WhiteSpace"/> <xs:attribute name="alias" type="xs:string" default="white space"/>                         one or more consecutive occurrences of a #separatorCharacter                     enumeration  world appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#World"/>                         collection of one or more #X3DFiles (potentially including other multimedia content) that is interpreted by an X3D #browser to present an interactive experience to the #user that is consistent with the intent of the #author                     enumeration  worldCoordinateSpace appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#WorldCoordinateSpace"/> <xs:attribute name="alias" type="xs:string" default="world coordinate space"/>                         coordinate system in which each X3D #world is defined                     enumeration  X3DBrowser appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#X3DBrowser"/> <xs:attribute name="alias" type="xs:string" default="X3D browser"/> <xs:attribute name="alias" type="xs:string" default="browser"/>                         see #browser                     enumeration  X3DDocumentServer appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#X3DDocumentServer"/>                         computer program that locates and transmits #X3DFiles and supporting files in response to requests from #browsers                     enumeration  X3DFile appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#X3DFile"/> <xs:attribute name="alias" type="xs:string" default="X3D file"/>                         set of X3D nodes and statements as defined in this document                     enumeration  XYPlane appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#XYPlane"/> <xs:attribute name="alias" type="xs:string" default="XY plane"/>                         plane perpendicular to the Z-axis that passes through the point Z = 0.0                     enumeration  YZPlane appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#YZPlane"/> <xs:attribute name="alias" type="xs:string" default="YZ plane"/>                         plane perpendicular to the X-axis that passes through the point X = 0.0                     enumeration  ZXPlane appinfo <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ZXPlane"/> <xs:attribute name="alias" type="xs:string" default="ZX plane"/>                         plane perpendicular to the Y-axis that passes through the point Y = 0.0
annotation	appinfo Glossary terms are defined in X3D Architecture: Extensible 3D (X3D), ISO/IEC 19775-1:2023, 3 Definitions, acronyms, and abbreviations.
source	<xs:simpleType name="glossaryChoices">   <xs:annotation>     <xs:appinfo>Glossary terms are defined in X3D Architecture: Extensible 3D (X3D), ISO/IEC 19775-1:2023, 3 Definitions, acronyms, and abbreviations.</xs:appinfo>     <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html"/>   </xs:annotation>   <xs:restriction base="xs:NMTOKEN">     <xs:enumeration value="activate">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Activate"/>                         cause a #sensorNode to generate an isActive #event                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="ancestor">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Ancestor"/>                         #node which is an antecedent of another node in the #transformationHierarchy                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="AudioGraph">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#AudioGraph"/>           <xs:attribute name="alias" type="xs:string" default="audio graph"/>                         structured collection of nodes that process audio inputs and outputs                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="author">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Author"/>                         person or agent that creates an #X3DFile                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="AuthoringTool">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#AuthoringTool"/>           <xs:attribute name="alias" type="xs:string" default="authoring tool"/>                         see #generator                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="avatar">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Avatar"/>                         abstract representation of the #user in an X3D #world                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="bearing">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Bearing"/>                         straight line passing through the #pointer location in the direction of the pointer                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="BindableNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#BindableNode"/>           <xs:attribute name="alias" type="xs:string" default="bindable node"/>                         #node that may have many #instances in a #sceneGraph but only one instance may be active at any instant of #time                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="browser">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Browser"/>                         computer program that interprets 3X3DFiles, presents their content to a user on a #displayDevice, and allows the user to interact with #worlds defined by X3D files by means of a user interface                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="BrowserExtension">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#BrowserExtension"/>           <xs:attribute name="alias" type="xs:string" default="browser extension"/>                         #nodes defined using the prototyping mechanism that are understood only by certain #browsers                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="BuiltInNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Built-InNode"/>           <xs:attribute name="alias" type="xs:string" default="built-in node"/>                         #node of a #type explicitly defined in this document                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="callback">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Callback"/>                         function defined in a #scriptingLanguage to which #events are passed                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="child">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Child"/>                         instance of a #ChildrenNode                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="ChildrenNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ChildrenNode"/>           <xs:attribute name="alias" type="xs:string" default="children node"/>                         one of a set of #nodeTypes, instances of which can be collected in a group to share specific properties dependent on the type of the #GroupingNode                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="ClientSystem">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ClientSystem"/>           <xs:attribute name="alias" type="xs:string" default="client system"/>                         computer system, attached to a #network, that relies on another computer (the server) for essential processing functions                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="CollisionProxy">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#CollisionProxy"/>           <xs:attribute name="alias" type="xs:string" default="collision proxy"/>                         #node used as a substitute for all of a Collision node's children during collision detection                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="ColourModel">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ColourModel"/>           <xs:attribute name="alias" type="xs:string" default="colour model"/>           <xs:attribute name="alias" type="xs:string" default="color model"/>                         characterization of a colour space in terms of explicit parameters                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="culling">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Culling"/>                         process of identifying #objects or parts of objects which do not need to be processed further by the #browser in order to produce the desired view of a #world                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="descendant">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Descendant"/>                         #node which descends from another node in the #transformationHierarchy (a #ChildrenNode)                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="DisplayDevice">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#DisplayDevice"/>           <xs:attribute name="alias" type="xs:string" default="display device"/>                         graphics device on which X3D #worlds may be rendered                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="DragSensor">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#DragSensor"/>           <xs:attribute name="alias" type="xs:string" default="drag sensor"/>                         #pointingDeviceSensor that causes #events to be generated in response to sensor-dependent pointer motions                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="EnvironmentalSensor">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#EnvironmentalSensor"/>           <xs:attribute name="alias" type="xs:string" default="environmental sensor"/>                         sensor #node that generates #events based on the location of the viewpoint in the #world or in relation to #objects in the world                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="event">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Event"/>                         message sent from one #node to another as defined by a #ROUTE                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="EventCascade">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#EventCascade"/>           <xs:attribute name="alias" type="xs:string" default="event cascade"/>                         sequence of @events initiated by a script or sensor event and propagated from #node to node along one or more #routes all of which are considered to have occurred simultaneously                         <!-- (see Concepts, 4.4.8.3 Execution model) -->         </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="ExecutionModel">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ExecutionModel"/>           <xs:attribute name="alias" type="xs:string" default="execution model"/>                         rules governing how #events are processed by #browsers and scripts                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="ExternaPrototype">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ExternaPrototype"/>           <xs:attribute name="alias" type="xs:string" default="external prototype"/>                         #prototype defined in an external file and referenced by a #URL                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="field">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Field"/>                         property or attribute of a #node                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="FieldName">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#FieldName"/>           <xs:attribute name="alias" type="xs:string" default="field name"/>                         identifier of a #field                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="frame">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Frame"/>                         single rendering of a #world on a #displayDevice or a single time-step in a simulation                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="generator">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Generator"/>                         computer program which creates #X3DFiles                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="GeometricPropertyNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#GeometricPropertyNode"/>           <xs:attribute name="alias" type="xs:string" default="geometric property node"/>                         #node defining the properties of a specific geometry node                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="GeometryNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#GeometryNode"/>           <xs:attribute name="alias" type="xs:string" default="geometry node"/>                         #node containing mathematical descriptions of points, lines, surfaces, text strings and solids                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="grab">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Grab"/>                         receive #events from activated #pointingDevices                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="GroupingNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#GroupingNode"/>           <xs:attribute name="alias" type="xs:string" default="grouping node"/>                         one of a set of #nodeTypes which include a list of nodes, referred to as its #ChildrenNodes                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="HostApplication">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#HostApplication"/>           <xs:attribute name="alias" type="xs:string" default="host application"/>                         client application with which the #browser communicates using the SAI                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="image">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Image"/>                         two-dimensional (2D) rectangular array of pixel values                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="immersive">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Immersive"/>                         creating the illusion of being inside a computer-generated scene                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="Inlining">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#In-lining"/>           <xs:attribute name="alias" type="xs:string" default="in-lining"/>                         mechanism by which one #X3DFile is hierarchically included in another                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="instance">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Instance"/>                         the #node created by an #instantiation                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="instantiation">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Instantiation"/>                         the creation of a #node based on its #nodeType                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="InterpolatorNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#InterpolatorNode"/>           <xs:attribute name="alias" type="xs:string" default="interpolator node"/>                         #node that defines a piece-wise or smoothly continuous interpolation                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="intranet">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Intranet"/>                         private #network that uses the same protocols and standards as the Internet                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="LevelOfDetail">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#LevelOfDetail"/>           <xs:attribute name="alias" type="xs:string" default="level of detail"/>                         amount of detail or complexity which is displayed at any particular #time for any particular #object                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="LineTerminator">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#LineTerminator"/>           <xs:attribute name="alias" type="xs:string" default="line terminator"/>                         linefeed character (0x0A) and/or carriage return character (0x0D)                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="loop">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Loop"/>                         sequence of #events which would result in a specific event generator sending more than one event with the same #timestamp                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="multimedia">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Multimedia"/>                         integrated presentation, typically on a computer, of content of various types, such as computer graphics, audio, and videon                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="network">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Network"/>                         set of interconnected computers                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="node">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Node"/>           <xs:attribute name="synonym" type="xs:string" default="object"/>                         fundamental component of a #sceneGraph that defines model information, such as graph structure, geometry, animation, interaction, object metadata, rendering, or display                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="nodeType">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#NodeType"/>           <xs:attribute name="alias" type="xs:string" default="node type"/>                         characteristic of each node that describes, in general, its particular semantics                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="object">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Object"/>           <xs:attribute name="synonym" type="xs:string" default="node"/>                         collection of data and procedures, packaged according to the rules and syntax defined in this document.                         NOTE  This term is usually synonymous with #node.                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="orderOfPreference">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#OrderOfPreference"/>           <xs:attribute name="alias" type="xs:string" default="order of preference"/>                         order (specified by the user) in which a list of #field values is processed by the #browser                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="panorama">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Panorama"/>                         background texture that is placed behind all geometry in the scene and in front of the ground and sky                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="parent">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Parent"/>                         #node which is an instance of a #GroupingNode                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="pixel">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Pixel"/>                         one element of an #image specified as a matrix of colour elements                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="pointer">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Pointer"/>                         location and direction in the #virtualWorld defined by the #pointingDevice with which the #user is currently interacting with the virtual world                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="pointingDevice">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#PointingDevice"/>           <xs:attribute name="alias" type="xs:string" default="pointing device"/>                         hardware device connected to the #user's computer by which the user directly controls the location and direction of the #pointer                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="pointingDeviceSensor">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#PointingDeviceSensor"/>           <xs:attribute name="alias" type="xs:string" default="pointing device sensor"/>                         sensor #node that generates #events based on #user actions, such as #pointingDevice motions or button activations                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="polyline">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Polyline"/>                         piecewise linear curve                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="profile">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Profile"/>                         named collection of criteria for functionality and conformance that defines an implementable subset of a standard                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="prototype">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Prototype"/>                         definition of a new #nodeType in terms of the nodes defined in this document                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="prototyping">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Prototyping"/>                         mechanism for extending the set of #nodeTypes from within a #X3DFile                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="ROUTE">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ROUTE"/>                         connection between a #node generating an #event and a node receiving the event                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="sceneGraph">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SceneGraph"/>           <xs:attribute name="alias" type="xs:string" default="scene graph"/>                         ordered set of #nodes and #statements                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="script">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Script"/>                         set of procedural functions normally executed as part of an #eventCascade                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="scripting">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Scripting"/>                         process of creating or referring to a #script                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="sensorNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SensorNode"/>           <xs:attribute name="alias" type="xs:string" default="sensor node"/>                         #node that enables the #user to interact with the #world in the scene graph hierarchy                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="separatorCharacter">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SeparatorCharacter"/>           <xs:attribute name="alias" type="xs:string" default="separator character"/>                         #UTF-8 character used to separate syntactical entities in an #X3DFile                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="sibling">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Sibling"/>                         #node which shares a #parent with other nodes                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="simulationTick">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SimulationTick"/>           <xs:attribute name="alias" type="xs:string" default="simulation tick"/>                         smallest time unit capable of being identified in a digital simulation of analog time                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="slerp">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#slerp"/>                         spherical linear interpolation for animating 3D rotation values                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="specialGroupNode">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#SpecialGroupNode"/>           <xs:attribute name="alias" type="xs:string" default="special group node"/>                         grouping node that exhibits special behaviour ( e.g., Switch or LOD)                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="statement">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Statement"/>                         A statement specifies fundamental scene-related information                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="texel">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Texel"/>                         #pixel in an #image used as a #texture                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="texture">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Texture"/>                         image used to create visual appearance effects when applied to geometry nodes                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="textureCoordinates">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#TextureCoordinates"/>           <xs:attribute name="alias" type="xs:string" default="texture coordinates"/>                         set of coordinates used to map a #texture to geometry                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="time">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Time"/>                         monotonically increasing value generated by a node                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="timestamp">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Timestamp"/>                         that part of an #event that describes the #time the event occurred and that caused the message to be sent                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="transformationHierarchy">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#TransformationHierarchy"/>           <xs:attribute name="alias" type="xs:string" default="transformation hierarchy"/>                         subset of the #sceneGraph consisting of #nodes that have well-defined coordinate systems                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="transparencyChunk">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#TransparencyChunk"/>           <xs:attribute name="alias" type="xs:string" default="transparency chunk"/>                         section of a PNG file containing transparency information (derived from ISO/IEC 15948)                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="traverse">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Traverse"/>                         process the nodes in a scene graph in the correct order                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="user">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#User"/>                         person or agent who uses and interacts with #X3DFiles by means of a #browser                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="viewer">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#Viewer"/>                         location, direction, and viewing angle in a #virtualWorld that determines the portion of the virtual world presented by the #browser to the #user                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="virtualWorld">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#VirtualWorld"/>           <xs:attribute name="alias" type="xs:string" default="virtual world"/>           <xs:attribute name="alias" type="xs:string" default="world"/>                         See #world.                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="whiteSpace">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#WhiteSpace"/>           <xs:attribute name="alias" type="xs:string" default="white space"/>                         one or more consecutive occurrences of a #separatorCharacter                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="world">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#World"/>                         collection of one or more #X3DFiles (potentially including other multimedia content) that is interpreted by an X3D #browser to present an interactive experience to the #user that is consistent with the intent of the #author                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="worldCoordinateSpace">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#WorldCoordinateSpace"/>           <xs:attribute name="alias" type="xs:string" default="world coordinate space"/>                         coordinate system in which each X3D #world is defined                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="X3DBrowser">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#X3DBrowser"/>           <xs:attribute name="alias" type="xs:string" default="X3D browser"/>           <xs:attribute name="alias" type="xs:string" default="browser"/>                         see #browser                     </xs:appinfo>       </xs:annotation>       <!-- TODO omit this definition as redundant? -->     </xs:enumeration>     <xs:enumeration value="X3DDocumentServer">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#X3DDocumentServer"/>                         computer program that locates and transmits #X3DFiles and supporting files in response to requests from #browsers                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="X3DFile">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#X3DFile"/>           <xs:attribute name="alias" type="xs:string" default="X3D file"/>                         set of X3D nodes and statements as defined in this document                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="XYPlane">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#XYPlane"/>           <xs:attribute name="alias" type="xs:string" default="XY plane"/>                         plane perpendicular to the Z-axis that passes through the point Z = 0.0                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="YZPlane">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#YZPlane"/>           <xs:attribute name="alias" type="xs:string" default="YZ plane"/>                         plane perpendicular to the X-axis that passes through the point X = 0.0                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <xs:enumeration value="ZXPlane">       <xs:annotation>         <xs:appinfo>           <xs:documentation source="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/glossary.html#ZXPlane"/>           <xs:attribute name="alias" type="xs:string" default="ZX plane"/>                         plane perpendicular to the Y-axis that passes through the point Y = 0.0                     </xs:appinfo>       </xs:annotation>     </xs:enumeration>     <!-- # hash tags seem appropriate to handle internal cross-link references -->   </xs:restriction>   <!--             <p class='Params'>For the purposes of this document , the following definitions apply.</p>             <p>         ISO and IEC maintain terminology databases for use in standardization at the following addresses:</p>         <ul>             <li>    ISO Online browsing platform: available at <span class='code'><a href='https://www.iso.org/obp' target='_blank'>www.iso.org/obp</a></span></li>             <li>    IEC Electropedia: available at <span class='code'><a href='https://www.electropedia.org' target='_blank'>www.electropedia.org</a></span></li>         </ul>         --> </xs:simpleType>

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