Figure08_5AnimatingScale.x3d (X3dToXhtml listing)

X3D Model Documentation: Figure08_5AnimatingScale.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='Figure08_5AnimatingScale.x3d'/>
6	<meta name='creator' content='Figure 8.5, 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/ch08/08fig05.htm'/>
8	<meta name='translator' content='Kevin S. Anderson'/>
9	<meta name='translator' content='Don Brutzman'/>
10	<meta name='created' content='8 August 2000'/>
11	<meta name='modified' content='1 July 2023'/>
12	<meta name='description' content='Animation that scales a coordinate system and the ball built within it.'/>
13	<meta name='identifier' content='https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter08AnimatingPositionOrientationScale/Figure08_5AnimatingScale.x3d'/>
14	<meta name='generator' content='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
15	<meta name='license' content='../../license.html'/>
16	</head>

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Event Graph ROUTE Table shows event connections.

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Index for DEF nodes: BALLSIZE, BallTransform, CLOCK

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17	<Scene>
18	<!-- Pulsing Ball -->
19	<WorldInfo title='Figure08_5AnimatingScale.x3d'/>
20	<Group>
21	<!-- ROUTE information for BallTransform node: [from BALLSIZE.value_changed to set_scale ] --> <Transform DEF='BallTransform'>
22	<Shape>
23	<!-- Note that simple geometry (such as Sphere scale) is not allowed to change after initial creation. Scale changes are animated through parent Transform scale instead. -->
24	<Sphere/>
25	<Appearance>
26	<Material ambientIntensity='1' diffuseColor='1 0 0' shininess='1' specularColor='1 0 0'/>
27	</Appearance>
28	</Shape>
29	</Transform>
30	<!-- ROUTE information for CLOCK node: [from fraction_changed to BALLSIZE.set_fraction ] --> <TimeSensor DEF='CLOCK' cycleInterval='2.0' loop='true'/>
31	<!-- ROUTE information for BALLSIZE node: [from CLOCK.fraction_changed to set_fraction ] [from value_changed to BallTransform.set_scale ] --> <PositionInterpolator DEF='BALLSIZE' key='0.0 0.2 0.65 1.0' keyValue='1.0 1.0 1.0 1.5 1.5 1.5 1.1 1.1 1.1 1.0 1.0 1.0'/>
32	</Group>
33	<!-- Use of all-capitals for DEF names helps discriminate them from nodes and prototypes. -->
34	< ROUTE fromNode='CLOCK' fromField='fraction_changed' toNode='BALLSIZE' toField='set_fraction'/>
35	< ROUTE fromNode='BALLSIZE' fromField='value_changed' toNode='BallTransform' toField='set_scale'/>
36	</Scene>
37	</X3D>

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Event Graph ROUTE Table shows event connections.

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Index for DEF nodes: BALLSIZE, BallTransform, CLOCK

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X3D Tooltips element index: Appearance, Group, head, Material, meta, PositionInterpolator, ROUTE, Scene, Shape, Sphere, 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)

BALLSIZE
PositionInterpolator
set_fraction
SFFloat

then

BALLSIZE
PositionInterpolator
value_changed
SFVec3f

→
ROUTE
event to
(2)

BallTransform
Transform
set_scale
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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