Figure16_3ColoredLinesStarburst.x3d (X3dToXhtml listing)

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://savage.nps.edu/X3D-Edit'/>
14	<meta name='license' content='../../license.html'/>
15	</head>

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Event Graph ROUTE Table shows event connections.

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Index for DEF nodes: Burst, SPINNER, SPINNING_VIEWPOINT_PARENT_TRANSFORM, TIMER

Index for Viewpoint nodes: Viewpoint_1, Viewpoint_2

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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.

-->

<!--

Index for DEF nodes: Burst, SPINNER, SPINNING_VIEWPOINT_PARENT_TRANSFORM, TIMER

Index for Viewpoint nodes: Viewpoint_1, Viewpoint_2

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X3D Tooltips element index: Color, Coordinate, Group, head, IndexedLineSet, meta, OrientationInterpolator, ROUTE, Scene, Shape, TimeSensor, Transform, Viewpoint, 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.

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! 😀

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