X3D Model Documentation: Figure16_3ColoredLinesStarburst.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=' Figure16_3ColoredLinesStarburst.x3d '/>
  6            <meta name='creator' content='Figure 16.3, The VRML 2.0 Sourcebook, Copyright [1997] By Andrea L. Ames, David R. Nadeau, and John L. Moreland'/>
  7            <meta name='reference' content=' http://www.wiley.com/legacy/compbooks/vrml2sbk/ch16/16fig03.htm '/>
  8            <meta name='translator' content='Don Brutzman'/>
  9            <meta name='created' content='25 August 2000'/>
 10            <meta name='modified' content='20 October 2019'/>
 11            <meta name='description' content='A star burst of lines colored using colors from a Color node, select second viewpoint for animation.'/>
 12            <meta name='identifier' content=' https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter16Color/Figure16_3ColoredLinesStarburst.x3d '/>
 13            <meta name='generator' content='X3D-Edit 3.3, https://www.web3d.org/x3d/tools/X3D-Edit'/>
 14            <meta name='license' content='../../license.html'/>
 15       </head>
<!--
<!--
Event Graph ROUTE Table shows event connections.
-->
<!-- to top DEF nodes index: Burst, SPINNER, SPINNING_VIEWPOINT_PARENT_TRANSFORM, TIMER

Index for Viewpoint nodes: Viewpoint_1, Viewpoint_2
-->
 16       <Scene>
 17            <WorldInfo title='Figure16_3ColoredLinesStarburst.x3d'/>
 18            <Viewpoint description='Starburst lines' position='0 0 4'/>
 19 
          <!-- ROUTE information for SPINNING_VIEWPOINT_PARENT_TRANSFORM node:  [from SPINNER.value_changed to set_rotation ] -->
           <Transform DEF='SPINNING_VIEWPOINT_PARENT_TRANSFORM'>
 20                 <Viewpoint description='Spinning viewpoint' position='0 0 4'/>
 21            </Transform>
 22            <Group>
 23 
               <!-- Shape Burst is a DEF node that has 3 USE nodes: USE_1, USE_2, USE_3 -->
                <Shape DEF='Burst'>
 24                      <!-- no Appearance nodee, use emissive coloring of Color node colors instead -->
 25                      <!-- note that original VRML Sourcebook example used 0 instead of -1 values for colorIndex sentinels -->
 26                      <IndexedLineSet colorIndex='0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1 0 1 -1' coordIndex='0 1 -1 0 2 -1 0 3 -1 0 4 -1 0 5 -1 0 6 -1 0 7 -1 0 8 -1 0 9 -1 0 10 -1 0 11 -1 0 12 -1 0 13 -1 0 14 -1 0 15 -1 0 16 -1'>
 27                           <Coordinate point='0.00 0.00 0.00 1.00 0.00 0.00 0.92 0.38 0.00 0.71 0.71 0.00 0.38 0.92 0.00 0.00 1.00 0.00 -0.38 0.92 0.00 -0.71 0.71 0.00 -0.92 0.38 0.00 -1.00 0.00 0.00 -0.92 -0.38 0.00 -0.71 -0.71 0.00 -0.38 -0.92 0.00 0.00 -1.00 0.00 0.38 -0.92 0.00 0.71 -0.71 0.00 0.92 -0.38 0.00'/>
 28                           <Color color='1 1 0 1 0.3 0.3'/>
 29                      </IndexedLineSet>
 30                 </Shape>
 31                 <Transform rotation='0 1 0 0.785'>
 32                      <Shape USE='Burst'/>
 33                 </Transform>
 34                 <Transform rotation='0 1 0 1.571'>
 35                      <Shape USE='Burst'/>
 36                 </Transform>
 37                 <Transform rotation='0 1 0 2.355'>
 38                      <Shape USE='Burst'/>
 39                 </Transform>
 40            </Group>
 41 
          <!-- ROUTE information for TIMER node:  [from fraction_changed to SPINNER.set_fraction ] -->
           <TimeSensor DEF='TIMER' cycleInterval='4' loop='true'/>
 42            <!-- Note direction of rotation is negative, since we are rotating the position of a Viewpoint looking down the default -Z axis -->
 43 
          <!-- ROUTE information for SPINNER node:  [from TIMER.fraction_changed to set_fraction ] [from value_changed to SPINNING_VIEWPOINT_PARENT_TRANSFORM.set_rotation ] -->
           <OrientationInterpolator DEF='SPINNER' key='0 .5 1' keyValue='0 1 0 0 0 1 0 -3.1416 0 1 0 -6.2832'/>
 44            < ROUTE  fromNode='TIMER' fromField='fraction_changed' toNode='SPINNER' toField='set_fraction'/>
 45            < ROUTE  fromNode='SPINNER' fromField='value_changed' toNode='SPINNING_VIEWPOINT_PARENT_TRANSFORM' toField='set_rotation'/>
 46       </Scene>
 47  </X3D>
<!--
<!--
Event Graph ROUTE Table shows event connections.
-->
<!-- to top DEF nodes index: Burst, SPINNER, SPINNING_VIEWPOINT_PARENT_TRANSFORM, TIMER

Index for Viewpoint nodes: Viewpoint_1, Viewpoint_2
-->
X3D Tooltips element index: Color, Coordinate, Group, head, IndexedLineSet, meta, OrientationInterpolator, ROUTE, Scene, Shape, TimeSensor, Transform, Viewpoint, WorldInfo, X3D, plus documentation for accessType definitions, type definitions, XML data types, and field types

Event Graph ROUTE Table entries 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.

TIMER
TimeSensor
fraction_changed
SFFloat
→
ROUTE
event to
(1)
SPINNER
OrientationInterpolator
set_fraction
SFFloat 		then
 
 
  		SPINNER
OrientationInterpolator
value_changed
SFRotation
→
ROUTE
event to
(2)
SPINNING_VIEWPOINT_PARENT_TRANSFORM
Transform
set_rotation
SFRotation

Additional guidance on X3D animation can be found in the 10-Step Animation Design Process and Event Tracing hint sheets. Have fun with X3D! 😀
-->
<!-- Online at
https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter16Color/Figure16_3ColoredLinesStarburstIndex.html -->
<!-- Version control at
https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter16Color/Figure16_3ColoredLinesStarburst.x3d -->

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