X3D Model Documentation: samekeys.x3d

  1  <?xml version="1.0" encoding="UTF-8"?>
  2 
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.0//EN" "https://www.web3d.org/specifications/x3d-3.0.dtd">
  3  <X3D profile='Interchange' version='3.0 xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation='https://www.web3d.org/specifications/x3d-3.0.xsd'>
  4       <head>
  5            <meta name='titlecontent='samekeys.x3d'/>
  6            <meta name='MovingImagecontent='samekeys-movie.mpg'/>
  7            <meta name='referencecontent='http://www.nist.gov/vrml.html'/>
  8            <meta name='referencecontent='http://www.itl.nist.gov/div897/ctg/vrml/vrml.html'/>
  9            <meta name='creatorcontent='http://www.itl.nist.gov/div897/ctg/vrml/members.html'/>
 10            <meta name='disclaimercontent='This file was provided by the National Institute of Standards and Technology, and is part of the X3D Conformance Test Suite, available at http://www.nist.gov/vrml.html The information contained within this file is provided for use in establishing conformance to the ISO VRML97 Specification. Conformance to this test does not imply recommendation or endorsement by the National Institute of Standards and Technology (NIST). This software can be redistributed and/or modified freely provided that any derivative works bear some notice that they are derived from it, and any modified versions bear some notice that they have been modified. '/>
 11            <meta name='referencecontent='Original NIST Conformance Testing Group, https://www.itl.nist.gov/div897/ctg/vrml'/>
 12            <meta name='referencecontent='Interactive Conformance Testing for VRML, Mary Brady and Lynn Rosenthal, NIST, created 8 September 2010 and updated 25 August 2016, https://www.nist.gov/itl/ssd/information-systems-group/interactive-conformance-testing-vrml'/>
 13            <meta name='infocontent='Correct definition and compliance of this conformance scene is maintained by the X3D Working Group, https://www.web3d.org/working-groups/x3d'/>
 14            <meta name='translatorcontent='Michael Kass NIST, Don Brutzman NPS'/>
 15            <meta name='translatedcontent='21 January 2001'/>
 16            <meta name='modifiedcontent='28 August 2023'/>
 17            <meta name='descriptioncontent='Test keys with same value. A PositionInterpolator node is used to change the position of a Box geometry. The fraction_changed field of a TimeSensor node is used to change the position from keyValues of 0 0 0, -2 0 0, 0 0 0, 2 0 0, 0 0 0, 0 0 2, 0 0 -2, 0 0 0, 0 2 0, 0 0 0, 0 -2 0, 0 0 0 for keys of 0.08, 0.16, 0.24, 0.32, 0.5, 0.5, 0.5, 0.5, 0.68, 0.76, 0.84, 0.92 respectively. Because key 0.5 has multiple keyValues, only the first and last 0.5 key are used as limits. As a result: the Box geometry will move successively in the X direction, NOT move in the Z direction, then finish movement in the Y direction to in a 5 second interval.'/>
 18            <meta name='identifiercontent='https://www.web3d.org/x3d/content/examples/ConformanceNist/Interpolators/PositionInterpolator/samekeys.x3d'/>
 19            <meta name='generatorcontent='Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html'/>
 20            <meta name='generatorcontent='X3D-Edit 4.0, https://savage.nps.edu/X3D-Edit'/>
 21            <meta name='licensecontent='../../license.html'/>
 22       </head>
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<!--
Event Graph ROUTE Table shows event connections.
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<!-- to top Index for DEF nodes: COLOR, POSITION, TIME, TRANS
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 23       <Scene>
 24            <WorldInfo title='samekeys.x3d'/>
 25            <NavigationInfo type='"EXAMINE" "WALK" "FLY" "ANY"'/>
 26 
          <!-- ROUTE information for TIME node:  [from fraction_changed to POSITION.set_fraction ] -->
          <TimeSensor DEF='TIMEcycleInterval='5loop='true'/>
 27 
          <!-- ROUTE information for POSITION node:  [from TIME.fraction_changed to set_fraction ] [from value_changed to TRANS.set_translation ] -->
          <PositionInterpolator DEF='POSITIONkey='0.08 0.16 0.24 0.32 0.5 0.5 0.5 0.5 0.68 0.76 0.84 0.92keyValue='0 0 0 -2 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 -2 0 0 0 0 2 0 0 0 0 0 -2 0 0 0 0'/>
 28            <Group>
 29 
               <!-- ROUTE information for TRANS node:  [from POSITION.value_changed to set_translation ] -->
               <Transform DEF='TRANS'>
 30                      <Shape>
 31                           <Appearance>
 32                                <Material DEF='COLORdiffuseColor='1 0 0'/>
 33                           </Appearance>
 34                           <Box/>
 35                      </Shape>
 36                 </Transform>
 37            </Group>
 38            < ROUTE  fromNode='TIME' fromField='fraction_changed' toNode='POSITION' toField='set_fraction'/>
 39            < ROUTE  fromNode='POSITION' fromField='value_changed' toNode='TRANS' toField='set_translation'/>
 40       </Scene>
 41  </X3D>
<!--

<!--
Event Graph ROUTE Table shows event connections.
-->

<!-- to top Index for DEF nodes: COLOR, POSITION, TIME, TRANS
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X3D Tooltips element index: Appearance, Box, Group, head, Material, meta, NavigationInfo, PositionInterpolator, ROUTE, Scene, Shape, TimeSensor, Transform, WorldInfo, X3D, accessType and type, XML data types, field types

Event Graph ROUTE Table with 2 ROUTE connections total, showing X3D event-model relationships for this scene.

Each row shows an event cascade that may occur during a single timestamp interval between frame renderings, as part of the X3D execution model.

TIME
TimeSensor
fraction_changed
SFFloat

ROUTE
event to
(1)
POSITION
PositionInterpolator
set_fraction
SFFloat
then
 
 
 
POSITION
PositionInterpolator
value_changed
SFVec3f

ROUTE
event to
(2)
TRANS
Transform
set_translation
SFVec3f
Additional guidance on X3D animation can be found in the 10-Step Animation Design Process and Event Tracing hint sheets. Have fun with X3D! 😀

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