X3D Model Documentation: cycletime.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='Interactive' 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='cycletime.x3d'/>
  6            <meta name='MovingImagecontent='cycletime-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='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'/>
 12            <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'/>
 13            <meta name='translatorcontent='Michael Kass NIST, Don Brutzman NPS'/>
 14            <meta name='translatedcontent='21 January 2001'/>
 15            <meta name='modifiedcontent='28 August 2023'/>
 16            <meta name='descriptioncontent='Test if TimeSensor sends cycleTime event at the start of each cycle. The world includes two TimeSensors: TIME1 and TIME2. The cycleTime field for TIME1 triggers startTime for TIME2. When clicking the red sphere, the ball starts to move, complete one cycle of animation in 2 seconds, stop, and move again after 3 seconds.'/>
 17            <meta name='identifiercontent='https://www.web3d.org/x3d/content/examples/ConformanceNist/Sensors/TimeSensor/cycletime.x3d'/>
 18            <meta name='generatorcontent='Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html'/>
 19            <meta name='generatorcontent='X3D-Edit 4.0, https://savage.nps.edu/X3D-Edit'/>
 20            <meta name='licensecontent='../../license.html'/>
 21       </head>
<!--

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

<!-- to top Index for DEF nodes: BALL, INTERP, TIME1, TIME2, TOUCH
-->
 22       <Scene>
 23            <WorldInfo title='cycletime.x3d'/>
 24 
          <!-- ROUTE information for TIME1 node:  [from TOUCH.touchTime to startTime ] [from cycleTime to TIME2.startTime ] -->
          <TimeSensor DEF='TIME1cycleInterval='5loop='truestopTime='1'/>
 25 
          <!-- ROUTE information for TIME2 node:  [from TIME1.cycleTime to startTime ] [from fraction_changed to INTERP.set_fraction ] -->
          <TimeSensor DEF='TIME2cycleInterval='2'/>
 26 
          <!-- ROUTE information for TOUCH node:  [from touchTime to TIME1.startTime ] -->
          <TouchSensor DEF='TOUCHdescription='touch to activate'/>
 27 
          <!-- ROUTE information for INTERP node:  [from TIME2.fraction_changed to set_fraction ] [from value_changed to BALL.translation ] -->
          <PositionInterpolator DEF='INTERPkey='0 0.25 0.5 0.75 1keyValue='0 0 0 3 0 0 0 0 0 -3 0 0 0 0 0'/>
 28 
          <!-- ROUTE information for BALL node:  [from INTERP.value_changed to translation ] -->
          <Transform DEF='BALL'>
 29                 <Shape>
 30                      <Appearance>
 31                           <Material diffuseColor='1 0 0'/>
 32                      </Appearance>
 33                      <Sphere/>
 34                 </Shape>
 35            </Transform>
 36            < ROUTE  fromNode='TOUCH' fromField='touchTime' toNode='TIME1' toField='startTime'/>
 37            < ROUTE  fromNode='TIME1' fromField='cycleTime' toNode='TIME2' toField='startTime'/>
 38            < ROUTE  fromNode='TIME2' fromField='fraction_changed' toNode='INTERP' toField='set_fraction'/>
 39            < ROUTE  fromNode='INTERP' fromField='value_changed' toNode='BALL' toField='translation'/>
 40       </Scene>
 41  </X3D>
<!--

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

<!-- to top Index for DEF nodes: BALL, INTERP, TIME1, TIME2, TOUCH
-->
X3D Tooltips element index: Appearance, head, Material, meta, PositionInterpolator, ROUTE, Scene, Shape, Sphere, TimeSensor, TouchSensor, Transform, WorldInfo, X3D, accessType and type, XML data types, field types

Event Graph ROUTE Table entries with 4 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.

TOUCH
TouchSensor
touchTime
SFTime

ROUTE
event to
(1)
TIME1
TimeSensor
startTime
SFTime
then
 
 
 
TIME1
TimeSensor
cycleTime
SFTime

ROUTE
event to
(2)
TIME2
TimeSensor
startTime
SFTime
then
 
 
 
TIME2
TimeSensor
fraction_changed
SFFloat

ROUTE
event to
(3)
INTERP
PositionInterpolator
set_fraction
SFFloat
then
 
 
 
INTERP
PositionInterpolator
value_changed
SFVec3f

ROUTE
event to
(4)
BALL
Transform
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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<!-- Color legend: X3D terminology <X3dNode DEF='idName' field='value'/> matches XML terminology <XmlElement DEF='idName' attribute='value'/>
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