X3D Model Documentation: Figure08_3PositionInterpolator.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='Figure08_3PositionInterpolator.x3d'/>
  6            <meta name='referencecontent='http://www.wiley.com/legacy/compbooks/vrml2sbk/ch08/08fig03.htm'/>
  7            <meta name='creatorcontent='Don Brutzman'/>
  8            <meta name='createdcontent='8 August 2000'/>
  9            <meta name='modifiedcontent='20 October 2019'/>
 10            <meta name='descriptioncontent='Simple PositionInterpolator example. An animation that moves a coordinate system and the cube built within it along a bouncing path.'/>
 11            <meta name='referencecontent='PositionInterpolatorPathMapDiagram.png'/>
 12            <meta name='identifiercontent='https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter08AnimatingPositionOrientationScale/Figure08_3PositionInterpolator.x3d'/>
 13            <meta name='generatorcontent='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
 14            <meta name='licensecontent='../../license.html'/>
 15       </head>
<!--

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

<!-- to top Index for DEF nodes: BOUNCINGBOXTRANSFORM, CLOCK, CUBEPATH
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 16       <Scene>
 17            <Group>
 18                 <WorldInfo title='Figure08_3PositionInterpolator.x3d'/>
 19                 <NavigationInfo/>
 20                 <!-- Animation clock -->
 21 
               <!-- ROUTE information for CLOCK node:  [from fraction_changed to CUBEPATH.set_fraction ] -->
               <TimeSensor DEF='CLOCKcycleInterval='4loop='true'/>
 22                 <!-- Key locations in the animation path are captured in the PositionInterpolator. -->
 23                 <!-- Intermediate position values are interpolated between key locations. -->
 24 
               <!-- ROUTE information for CUBEPATH node:  [from CLOCK.fraction_changed to set_fraction ] [from value_changed to BOUNCINGBOXTRANSFORM.set_translation ] -->
               <PositionInterpolator DEF='CUBEPATHkey='0.00 0.11 0.17 0.22 0.33 0.44 0.50 0.55 0.66 0.77 0.83 0.88 0.99keyValue='0.0 0.0 0.0 1.0 1.96 1.0 1.5 2.21 1.5 2.0 1.96 2.0 3.0 0.0 3.0 2.0 1.96 3.0 1.5 2.21 3.0 1.0 1.96 3.0 0.0 0.0 3.0 0.0 1.96 2.0 0.0 2.21 1.5 0.0 1.96 1.0 0.0 0.0 0.0'/>
 25                 < ROUTE  fromNode='CLOCK' fromField='fraction_changed' toNode='CUBEPATH' toField='set_fraction'/>
 26                 <!-- Moving box is rotated slightly to better show its shape. -->
 27 
               <!-- ROUTE information for BOUNCINGBOXTRANSFORM node:  [from CUBEPATH.value_changed to set_translation ] -->
               <Transform DEF='BOUNCINGBOXTRANSFORMrotation='0 1 0 .78'>
 28                      <Shape>
 29                           <Appearance>
 30                                <Material diffuseColor='.8 .8 .2'/>
 31                           </Appearance>
 32                           <Box size='1 1.5 1'/>
 33                      </Shape>
 34                 </Transform>
 35                 < ROUTE  fromNode='CUBEPATH' fromField='value_changed' toNode='BOUNCINGBOXTRANSFORM' toField='set_translation'/>
 36            </Group>
 37       </Scene>
 38  </X3D>
<!--

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

<!-- to top Index for DEF nodes: BOUNCINGBOXTRANSFORM, CLOCK, CUBEPATH
-->
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.

CLOCK
TimeSensor
fraction_changed
SFFloat

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

ROUTE
event to
(2)
BOUNCINGBOXTRANSFORM
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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<!-- Online at
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(Light-blue background: event-based behavior node or statement) (Grey background inside box: inserted documentation) (Magenta background: X3D Extensibility)
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