<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.2//EN" "https://www.web3d.org/specifications/x3d-3.2.dtd">
<X3D profile='Immersive'  version='3.2'  xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation =' https://www.web3d.org/specifications/x3d-3.2.xsd ' >
<head>
<meta name='title' content=' FollowerExternalPrototypeDeclarations.x3d '/>
<meta name='description' content='X3D Follower example'/>
<meta name='creator' content='Herbert Stocker'/>
<meta name='translator' content='Don Brutzman'/>
<meta name='created' content='18 April 2006'/>
<meta name='translated' content='10 April 2012'/>
<meta name='modified' content='20 October 2019'/>
<meta name='reference' content=' FollowerPrototypeDeclarations.x3d '/>
<meta name='reference' content='originals/Chasers.wrl'/>
<meta name='reference' content='originals/Dampers.wrl'/>
<meta name='reference' content=' Stocker_06_Followers.pdf '/>
<meta name='reference' content=' http://www.hersto.com/Publications/Followers '/>
<meta name='requires' content='X3D version 3.2 or greater'/>
<meta name='subject' content='X3D Follower Chaser Damper'/>
<meta name=' warning ' content=' under development '/>
<meta name=' TODO ' content=' Rename and test these prototypes to match final names in X3D Specification Followers Component '/>
<meta name=' TODO ' content=' Ensure full coverage of follower nodes in order to provide backwards compatibility with X3D v3.0 and v3.1. '/>
<meta name='reference' content=' https://www.web3d.org/x3d/specifications/ISO-IEC-19775-1.2-X3D-AbstractSpecification/Part01/components/followers.html '/>
<meta name='reference' content=' https://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html '/>
<meta name='identifier' content=' https://www.web3d.org/x3d/content/examples/Basic/Followers/FollowerExternalPrototypeDeclarations.x3d '/>
<meta name='generator' content=' Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html '/>
<meta name='generator' content='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
<meta name='license' content=' ../../license.html'/>
</head>
<!--
Index for ExternProtoDeclare definitions: OrientationChaser, OrientationDamper, PlacementChaser, Position2fChaser, Position2fDamper, PositionChaser, PositionDamper, ScalarDamper
-->
<Scene>
<WorldInfo info=' "The ExternProto nodes found in this file implement principles described in the paper"
"Linear Filters - Animating Objects in a Flexible and Pleasing Way"
"They have been proposed and added to the X3D standard in 2006."
"Webpage: "http://www.hersto.net/Followers" ""
"Please use the code in this file in any content or application you like"
"or modify it in any way."
""
"The code here works, however things like detecting when a transition has ended"
"and when the node can stop calculating and updating the output or secondary fields"
"like set_value or initial_destination are not yet implemented."
"Nevertheless, set_destination and value_changed do work."
' title='Follower (Chaser and Damper) nodes'/>
<!-- ================================================ -->
<!-- Do not use these! The following ExternProtoDeclares were produced when converting the original examples, and are included for completeness only. -->
<ExternProtoDeclare name='OrientationChaser'
  url=' "urn:inet:hersto.net:node:OrientationChaser" "Chasers.x3d#OrientationChaser" "https://www.web3d.org/x3d/content/examples/Basic/Followers/Chasers.x3d#OrientationChaser" "Chasers.wrl#OrientationChaser" "https://www.web3d.org/x3d/content/examples/Basic/Followers/Chasers.wrl#OrientationChaser" "http://www.hersto.net/Followers/Chasers.wrl#OrientationChaser" ' >
<field name='value_changed' type='SFRotation' accessType='outputOnly'/>
<field name='set_value' type='SFRotation' accessType='inputOnly'/>
<field name='isActive' type='SFBool' accessType='outputOnly'/>
<field name='set_destination' type='SFRotation' accessType='inputOnly'/>
<field name='duration' type='SFTime' accessType='initializeOnly'/>
<field name='initial_destination' type='SFRotation' accessType='initializeOnly'/>
<field name='initial_value' type='SFRotation' accessType='initializeOnly'/>
</ExternProtoDeclare>
<ExternProtoDeclare name='OrientationDamper'
  url=' "urn:inet:hersto.net:node:OrientationDamper" "Dampers.wrl#OrientationDamper" "http://www.hersto.net/Followers/Dampers.wrl#OrientationDamper" ' >
<field name='isLoaded' type='SFBool' accessType='outputOnly'/>
<field name='value_changed' type='SFRotation' accessType='outputOnly'/>
<field name='set_destination' type='SFRotation' accessType='inputOnly'/>
<field name='initial_destination' type='SFRotation' accessType='initializeOnly'/>
<field name='order' type='SFInt32' accessType='initializeOnly'/>
<field name='tau' type='SFFloat' accessType='inputOutput'/>
<field name='set_value' type='SFRotation' accessType='inputOnly'/>
<field name='initial_value' type='SFRotation' accessType='initializeOnly'/>
<field name='isActive' type='SFBool' accessType='outputOnly'/>
<field name='eps' type='SFFloat' accessType='initializeOnly'/>
</ExternProtoDeclare>
<ExternProtoDeclare name='PlacementChaser'
  url=' "Chasers.x3d#PlacementChaser" "https://www.web3d.org/x3d/content/examples/Basic/Followers/Chasers.x3d#PlacementChaser" "Chasers.wrl#PlacementChaser" "https://www.web3d.org/x3d/content/examples/Basic/Followers/Chasers.wrl#PlacementChaser" ' >
<field name='isLoaded' type='SFBool' accessType='outputOnly'/>
<field name='set_valuePos' type='SFVec3f' accessType='inputOnly'/>
<field name='set_valueOri' type='SFRotation' accessType='inputOnly'/>
<field name='set_destinationPos' type='SFVec3f' accessType='inputOnly'/>
<field name='duration' type='SFTime' accessType='initializeOnly'/>
<field name='set_destinationOri' type='SFRotation' accessType='inputOnly'/>
<field name='initial_valuePos' type='SFVec3f' accessType='initializeOnly'/>
<field name='initial_destinationPos' type='SFVec3f' accessType='initializeOnly'/>
<field name='valuePos_changed' type='SFVec3f' accessType='outputOnly'/>
<field name='initial_valueOri' type='SFRotation' accessType='initializeOnly'/>
<field name='initial_destinationOri' type='SFRotation' accessType='initializeOnly'/>
<field name='valueOri_changed' type='SFRotation' accessType='outputOnly'/>
<field name='isActive' type='SFBool' accessType='outputOnly'/>
</ExternProtoDeclare>
<ExternProtoDeclare name='Position2fDamper'
  url=' "urn:inet:hersto.net:node:Position2fDamper" "Dampers.wrl#Position2fDamper" "http://www.hersto.net/Followers/Dampers.wrl#Position2fDamper" ' >
<field name='isLoaded' type='SFBool' accessType='outputOnly'/>
<field name='value_changed' type='SFVec2f' accessType='outputOnly'/>
<field name='set_destination' type='SFVec2f' accessType='inputOnly'/>
<field name='initial_destination' type='SFVec2f' accessType='initializeOnly'/>
<field name='order' type='SFInt32' accessType='initializeOnly'/>
<field name='tau' type='SFFloat' accessType='inputOutput'/>
<field name='set_value' type='SFVec2f' accessType='inputOnly'/>
<field name='initial_value' type='SFVec2f' accessType='initializeOnly'/>
<field name='isActive' type='SFBool' accessType='outputOnly'/>
<field name='eps' type='SFFloat' accessType='initializeOnly'/>
</ExternProtoDeclare>
<ExternProtoDeclare name='Position2fChaser'
  url=' "urn:inet:hersto.net:node:Position2fChaser" "Chasers.wrl#Position2fChaser" "http://www.hersto.net/Followers/Chasers.wrl#Position2fChaser" ' >
<field name='value_changed' type='SFVec2f' accessType='outputOnly'/>
<field name='set_value' type='SFVec2f' accessType='inputOnly'/>
<field name='isActive' type='SFBool' accessType='outputOnly'/>
<field name='set_destination' type='SFVec2f' accessType='inputOnly'/>
<field name='duration' type='SFTime' accessType='initializeOnly'/>
<field name='initial_destination' type='SFVec2f' accessType='initializeOnly'/>
<field name='initial_value' type='SFVec2f' accessType='initializeOnly'/>
</ExternProtoDeclare>
<ExternProtoDeclare name='PositionChaser'
  url=' "urn:inet:hersto.net:node:PositionChaser" "Chasers.wrl#PositionChaser" "http://www.hersto.net/Followers/Chasers.wrl#PositionChaser" ' >
<field name='value_changed' type='SFVec3f' accessType='outputOnly'/>
<field name='set_value' type='SFVec3f' accessType='inputOnly'/>
<field name='isActive' type='SFBool' accessType='outputOnly'/>
<field name='set_destination' type='SFVec3f' accessType='inputOnly'/>
<field name='duration' type='SFTime' accessType='initializeOnly'/>
<field name='initial_destination' type='SFVec3f' accessType='initializeOnly'/>
<field name='initial_value' type='SFVec3f' accessType='initializeOnly'/>
</ExternProtoDeclare>
<ExternProtoDeclare name='PositionDamper'
  url=' "urn:inet:hersto.net:node:PositionDamper" "Dampers.wrl#PositionDamper" "http://www.hersto.net/Followers/Dampers.wrl#PositionDamper" ' >
<field name='isLoaded' type='SFBool' accessType='outputOnly'/>
<field name='value_changed' type='SFVec3f' accessType='outputOnly'/>
<field name='set_destination' type='SFVec3f' accessType='inputOnly'/>
<field name='initial_destination' type='SFVec3f' accessType='initializeOnly'/>
<field name='order' type='SFInt32' accessType='initializeOnly'/>
<field name='tau' type='SFFloat' accessType='inputOutput'/>
<field name='set_value' type='SFVec3f' accessType='inputOnly'/>
<field name='initial_value' type='SFVec3f' accessType='initializeOnly'/>
<field name='isActive' type='SFBool' accessType='outputOnly'/>
<field name='eps' type='SFFloat' accessType='initializeOnly'/>
</ExternProtoDeclare>
<ExternProtoDeclare name='ScalarDamper'
  url=' "Dampers.x3d#ScalarDamper" "https://www.web3d.org/x3d/content/examples/Basic/Followers/Dampers.x3d#ScalarDamper" "Dampers.wrl#ScalarDamper" "https://www.web3d.org/x3d/content/examples/Basic/Followers/Dampers.wrl#ScalarDamper" ' >
<field name='isLoaded' type='SFBool' accessType='outputOnly'/>
<field name='value_changed' type='SFFloat' accessType='outputOnly'/>
<field name='set_destination' type='SFFloat' accessType='inputOnly'/>
<field name='initial_destination' type='SFFloat' accessType='initializeOnly'/>
<field name='order' type='SFInt32' accessType='initializeOnly'/>
<field name='tau' type='SFFloat' accessType='inputOutput'/>
<field name='set_value' type='SFFloat' accessType='inputOnly'/>
<field name='transparency_changed' type='SFFloat' accessType='outputOnly'/>
<field name='initial_value' type='SFFloat' accessType='initializeOnly'/>
<field name='isActive' type='SFBool' accessType='outputOnly'/>
<field name='eps' type='SFFloat' accessType='initializeOnly'/>
</ExternProtoDeclare>
</Scene>
</X3D>
<!--
Index for ExternProtoDeclare definitions: OrientationChaser, OrientationDamper, PlacementChaser, Position2fChaser, Position2fDamper, PositionChaser, PositionDamper, ScalarDamper
-->
-->

<!-- Online at
https://www.web3d.org/x3d/content/examples/Basic/Followers/FollowerExternalPrototypeDeclarationsIndex.html -->
<!-- Version control at
https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/Basic/Followers/FollowerExternalPrototypeDeclarations.x3d -->

<!-- Color legend: X3D terminology <X3dNode field='value'/> matches XML terminology <XmlElement attribute='value'/>
(Light-blue background: event-based behavior node or statement) (Grey background inside box: inserted documentation) (Magenta background: X3D Extensibility)
    <ProtoDeclare name='ProtoName'> <field name='fieldName'/> </ProtoDeclare> -->

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