X3DUOM Glossary to html conversion
      https://www.web3d.org/x3d/stylesheets/X3duomGlossaryToHtml.xslt
      
       Acronyms 
      
         - CAD
-  Computer-Assisted  Design 
- HSV
-  Hue,  Saturation,  and  Value  colour  model 
- JPEG
-  Joint  Photographic  Experts  Group 
- MIDI
-  Musical  Instrument  Digital  Interface..  A  standard  for  digital  music  representation.. 
- MIME
-  Multipurpose  Internet  Mail  Extension 
- MF
-  Multiple-valued  field 
- MPEG
-  Moving  Picture  Experts  Group 
- PNG
-  Portable  Network  Graphics..  A  specification  for  representing  two-dimensional  images  in  files.. 
- RGB
-  Red,  Green,  and  Blue  colour  model 
- RURL
-  Relative  Uniform  Resource  Locator 
- SAI
-  Scene  Access  Interface 
- SF
-  Single-valued  field 
- UCS
-  Universal  multiple-octet  coded  Character  Set 
- URI
-  Universal  Resource  Identifier 
- URL
-  Uniform  Resource  Locator 
- URN
-  Universal  Resource  Name 
- UTF-8
-  variable-length  8-bit  Universal  multiple-octet  coded  character  set  Transformation  Format 
 Glossary 
      
         - activate
-  cause  a  sensorNode  to  generate  an  isActive  event 
- ancestor
-  node  which  is  an  antecedent  of  another  node  in  the  transformationHierarchy 
- AudioGraph
-  structured  collection  of  nodes  that  process  audio  inputs  and  outputs 
- author
-  person  or  agent  that  creates  an  X3DFile 
- AuthoringTool
-  see  generator 
- avatar
-  abstract  representation  of  the  user  in  an  X3D  world 
- bearing
-  straight  line  passing  through  the  pointer  location  in  the  direction  of  the  pointer 
- BindableNode
-  node  that  may  have  many  instances  in  a  sceneGraph  but  only  one  instance  may  be  active  at  any  instant  of  time 
- 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 
- BrowserExtension
-  nodes  defined  using  the  prototyping  mechanism  that  are  understood  only  by  certain  browsers 
- BuiltInNode
-  node  of  a  type  explicitly  defined  in  this  document 
- callback
-  function  defined  in  a  scriptingLanguage  to  which  events  are  passed 
- child
-  instance  of  a  ChildrenNode 
- ChildrenNode
-  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 
- ClientSystem
-  computer  system,  attached  to  a  network,  that  relies  on  another  computer  (the  server)  for  essential  processing  functions 
- CollisionProxy
-  node  used  as  a  substitute  for  all  of  a  Collision  node's  children  during  collision  detection 
- ColourModel
-  characterization  of  a  colour  space  in  terms  of  explicit  parameters 
- 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 
- descendant
-  node  which  descends  from  another  node  in  the  transformationHierarchy  (a  ChildrenNode) 
- DisplayDevice
-  graphics  device  on  which  X3D  worlds  may  be  rendered 
- DragSensor
-  pointingDeviceSensor  that  causes  events  to  be  generated  in  response  to  sensor-dependent  pointer  motions 
- EnvironmentalSensor
-  sensor  node  that  generates  events  based  on  the  location  of  the  viewpoint  in  the  world  or  in  relation  to  objects  in  the  world 
- event
-  message  sent  from  one  node  to  another  as  defined  by  a  ROUTE 
- EventCascade
-  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 
- ExecutionModel
-  rules  governing  how  events  are  processed  by  browsers  and  scripts 
- ExternaPrototype
-  prototype  defined  in  an  external  file  and  referenced  by  a  URL 
- field
-  property  or  attribute  of  a  node 
- FieldName
-  identifier  of  a  field 
- frame
-  single  rendering  of  a  world  on  a  displayDevice  or  a  single  time-step  in  a  simulation 
- generator
-  computer  program  which  creates  X3DFiles 
- GeometricPropertyNode
-  node  defining  the  properties  of  a  specific  geometry  node 
- GeometryNode
-  node  containing  mathematical  descriptions  of  points,  lines,  surfaces,  text  strings  and  solids 
- grab
-  receive  events  from  activated  pointingDevices 
- GroupingNode
-  one  of  a  set  of  nodeTypes  which  include  a  list  of  nodes,  referred  to  as  its  ChildrenNodes 
- HostApplication
-  client  application  with  which  the  browser  communicates  using  the  SAI 
- image
-  two-dimensional  (2D)  rectangular  array  of  pixel  values 
- immersive
-  creating  the  illusion  of  being  inside  a  computer-generated  scene 
- Inlining
-  mechanism  by  which  one  X3DFile  is  hierarchically  included  in  another 
- instance
-  the  node  created  by  an  instantiation 
- instantiation
-  the  creation  of  a  node  based  on  its  nodeType 
- InterpolatorNode
-  node  that  defines  a  piece-wise  or  smoothly  continuous  interpolation 
- intranet
-  private  network  that  uses  the  same  protocols  and  standards  as  the  Internet 
- LevelOfDetail
-  amount  of  detail  or  complexity  which  is  displayed  at  any  particular  time  for  any  particular  object 
- LineTerminator
-  linefeed  character  (0x0A)  and/or  carriage  return  character  (0x0D) 
- loop
-  sequence  of  events  which  would  result  in  a  specific  event  generator  sending  more  than  one  event  with  the  same  timestamp 
- multimedia
-  integrated  presentation,  typically  on  a  computer,  of  content  of  various  types,  such  as  computer  graphics,  audio,  and  videon 
- network
-  set  of  interconnected  computers 
- node
-  fundamental  component  of  a  sceneGraph  that  defines  model  information,  such  as  graph  structure,  geometry,  animation,  interaction,  object  metadata,  rendering,  or  display 
- nodeType
-  characteristic  of  each  node  that  describes,  in  general,  its  particular  semantics 
- object
-  collection  of  data  and  procedures,  packaged  according  to  the  rules  and  syntax  defined  in  this  document..  NOTE  This  term  is  usually  synonymous  with  node.. 
- orderOfPreference
-  order  (specified  by  the  user)  in  which  a  list  of  field  values  is  processed  by  the  browser 
- panorama
-  background  texture  that  is  placed  behind  all  geometry  in  the  scene  and  in  front  of  the  ground  and  sky 
- parent
-  node  which  is  an  instance  of  a  GroupingNode 
- pixel
-  one  element  of  an  image  specified  as  a  matrix  of  colour  elements 
- pointer
-  location  and  direction  in  the  virtualWorld  defined  by  the  pointingDevice  with  which  the  user  is  currently  interacting  with  the  virtual  world 
- pointingDevice
-  hardware  device  connected  to  the  user's  computer  by  which  the  user  directly  controls  the  location  and  direction  of  the  pointer 
- pointingDeviceSensor
-  sensor  node  that  generates  events  based  on  user  actions,  such  as  pointingDevice  motions  or  button  activations 
- polyline
-  piecewise  linear  curve 
- profile
-  named  collection  of  criteria  for  functionality  and  conformance  that  defines  an  implementable  subset  of  a  standard 
- prototype
-  definition  of  a  new  nodeType  in  terms  of  the  nodes  defined  in  this  document 
- prototyping
-  mechanism  for  extending  the  set  of  nodeTypes  from  within  a  X3DFile 
- ROUTE
-  connection  between  a  node  generating  an  event  and  a  node  receiving  the  event 
- sceneGraph
-  ordered  set  of  nodes  and  statements 
- script
-  set  of  procedural  functions  normally  executed  as  part  of  an  eventCascade 
- scripting
-  process  of  creating  or  referring  to  a  script 
- sensorNode
-  node  that  enables  the  user  to  interact  with  the  world  in  the  scene  graph  hierarchy 
- separatorCharacter
-  UTF-8  character  used  to  separate  syntactical  entities  in  an  X3DFile 
- sibling
-  node  which  shares  a  parent  with  other  nodes 
- simulationTick
-  smallest  time  unit  capable  of  being  identified  in  a  digital  simulation  of  analog  time 
- slerp
-  spherical  linear  interpolation  for  animating  3D  rotation  values 
- specialGroupNode
-  grouping  node  that  exhibits  special  behaviour  (  e.g.,  Switch  or  LOD) 
- statement
-  A  statement  specifies  fundamental  scene-related  information 
- texel
-  pixel  in  an  image  used  as  a  texture 
- texture
-  image  used  to  create  visual  appearance  effects  when  applied  to  geometry  nodes 
- textureCoordinates
-  set  of  coordinates  used  to  map  a  texture  to  geometry 
- time
-  monotonically  increasing  value  generated  by  a  node 
- timestamp
-  that  part  of  an  event  that  describes  the  time  the  event  occurred  and  that  caused  the  message  to  be  sent 
- transformationHierarchy
-  subset  of  the  sceneGraph  consisting  of  nodes  that  have  well-defined  coordinate  systems 
- transparencyChunk
-  section  of  a  PNG  file  containing  transparency  information  (derived  from  ISO/IEC  15948) 
- traverse
-  process  the  nodes  in  a  scene  graph  in  the  correct  order 
- user
-  person  or  agent  who  uses  and  interacts  with  X3DFiles  by  means  of  a  browser 
- viewer
-  location,  direction,  and  viewing  angle  in  a  virtualWorld  that  determines  the  portion  of  the  virtual  world  presented  by  the  browser  to  the  user 
- virtualWorld
-  See  world.. 
- whiteSpace
-  one  or  more  consecutive  occurrences  of  a  separatorCharacter 
- 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 
- worldCoordinateSpace
-  coordinate  system  in  which  each  X3D  world  is  defined 
- X3DBrowser
-  see  browser 
- X3DDocumentServer
-  computer  program  that  locates  and  transmits  X3DFiles  and  supporting  files  in  response  to  requests  from  browsers 
- X3DFile
-  set  of  X3D  nodes  and  statements  as  defined  in  this  document 
- XYPlane
-  plane  perpendicular  to  the  Z-axis  that  passes  through  the  point  Z  =  0.0 
- YZPlane
-  plane  perpendicular  to  the  X-axis  that  passes  through  the  point  X  =  0.0 
- ZXPlane
-  plane  perpendicular  to  the  Y-axis  that  passes  through  the  point  Y  =  0.0