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='title' content='samekeys.x3d'/>
  6            <meta name='MovingImage' content='samekeys-movie.mpg'/>
  7            <meta name='reference' content='http://www.nist.gov/vrml.html'/>
  8            <meta name='reference' content='http://www.itl.nist.gov/div897/ctg/vrml/vrml.html'/>
  9            <meta name='creator' content='http://www.itl.nist.gov/div897/ctg/vrml/members.html'/>
 10            <meta name='disclaimer' content='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='reference' content='Original NIST Conformance Testing Group, https://www.itl.nist.gov/div897/ctg/vrml'/>
 12            <meta name='reference' content='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='info' content='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='translator' content='Michael Kass NIST, Don Brutzman NPS'/>
 15            <meta name='translated' content='21 January 2001'/>
 16            <meta name='modified' content='28 August 2023'/>
 17            <meta name='description' content='Test keys with same value. A NormalInterpolator node is used to change the normal vector at each vertex on a rectangular shaped IndexedFaceSet. The fraction_changed field of a TimeSensor node is used to control the keyframe animation of the normals. Because the three midde keys [0.5, 0.5, 0.5, 0.5 0.5] have the same value, the first and last identical key should serve as a limit for that key, and should result in NO vertical change in normals, hence the light will only appear to move horizontally in the XZ plane.'/>
 18            <meta name='identifier' content='https://www.web3d.org/x3d/content/examples/ConformanceNist/Interpolators/NormalInterpolator/samekeys.x3d'/>
 19            <meta name='generator' content='Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html'/>
 20            <meta name='generator' content='X3D-Edit 4.0, https://savage.nps.edu/X3D-Edit'/>
 21            <meta name='license' content='../../license.html'/>
 22       </head>
<!--
<!--
Event Graph ROUTE Table shows event connections.
-->

<!-- to top Index for DEF nodes: NORMAL, NORMAL_INTERPOLATOR, TIME, TRANS
-->
 23       <Scene>
 24            <WorldInfo title='samekeys.x3d'/>
 25            <NavigationInfo type='"EXAMINE" "WALK" "FLY" "ANY"'/>
 26 
          <!-- ROUTE information for TIME node:  [from fraction_changed to NORMAL_INTERPOLATOR.set_fraction ] -->
           <TimeSensor DEF='TIME' cycleInterval='5' loop='true'/>
 27 
          <!-- ROUTE information for NORMAL_INTERPOLATOR node:  [from TIME.fraction_changed to set_fraction ] [from value_changed to NORMAL.vector ] -->
           <NormalInterpolator DEF='NORMAL_INTERPOLATOR' key='0 0.11 0.22 0.33 0.44 0.5 0.5 0.5 0.5 0.5 0.55 0.66 0.77 0.88 1' keyValue='0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 -1 0 0 -1 -1 0 0 -1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 1 0 -1 1 0 -1 0 0 -1 -1 0 0 -1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 -1 0 0 -1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 -1 0 0 -1 0 1 0 0 -1 0 0 1 0 0 -1 0 0 1 0 0 -1 0 0 1 0 0 -1 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 1 0 -1 1 0 -1 0 0 -1 0 1 0 0 -1 0 0 1 0 0 -1 0 0 1 0 0 -1 0 0 1 0 0 -1 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 -1 0 0 -1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 -1 0 0 -1 -1 0 0 -1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 1 0 -1 1 0 -1 0 0 -1 -1 0 0 -1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 -1 0 0 -1 0 0 -1 0 0 -1'/>
 28            <Transform DEF='TRANS' rotation='1 1 0 0.875'>
 29                 <Shape>
 30                      <Appearance>
 31                           <Material/>
 32                      </Appearance>
 33                      <IndexedFaceSet creaseAngle='0.875' coordIndex='0 1 3 2 -1 4 5 7 6 -1 6 7 1 0 -1 2 3 5 4 -1 6 0 2 4 -1 1 7 5 3 -1'>
 34 
                         <!-- ROUTE information for NORMAL node:  [from NORMAL_INTERPOLATOR.value_changed to vector ] -->
                          <Normal DEF='NORMAL' vector='0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0'/>
 35                           <Coordinate point='-1 1 1 -1 -1 1 1 1 1 1 -1 1 1 1 -1 1 -1 -1 -1 1 -1 -1 -1 -1'/>
 36                      </IndexedFaceSet>
 37                 </Shape>
 38            </Transform>
 39            < ROUTE  fromNode='TIME' fromField='fraction_changed' toNode='NORMAL_INTERPOLATOR' toField='set_fraction'/>
 40            < ROUTE  fromNode='NORMAL_INTERPOLATOR' fromField='value_changed' toNode='NORMAL' toField='vector'/>
 41       </Scene>
 42  </X3D>
<!--
<!--
Event Graph ROUTE Table shows event connections.
-->

<!-- to top Index for DEF nodes: NORMAL, NORMAL_INTERPOLATOR, TIME, TRANS
-->
X3D Tooltips element index: Appearance, Coordinate, head, IndexedFaceSet, Material, meta, NavigationInfo, Normal, NormalInterpolator, 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)
NORMAL_INTERPOLATOR
NormalInterpolator
set_fraction
SFFloat 		then
 
 
  		NORMAL_INTERPOLATOR
NormalInterpolator
value_changed
MFVec3f
→
ROUTE
event to
(2)
NORMAL
Normal
vector
MFVec3f
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
https://www.web3d.org/x3d/content/examples/ConformanceNist/Interpolators/NormalInterpolator/samekeysIndex.html -->
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