<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.0//EN" "https://www.web3d.org/specifications/x3d-3.0.dtd">
<X3D profile='Immersive'  version='3.0 xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation =' https://www.web3d.org/specifications/x3d-3.0.xsd ' >
<head>
<meta name='titlecontent=' centersize.x3d '/>
<meta name='MovingImagecontent='centersize-movie.mpg'/>
<meta name='referencecontent=' http://www.nist.gov/vrml.html '/>
<meta name='referencecontent=' http://www.itl.nist.gov/div897/ctg/vrml/vrml.html '/>
<meta name='creatorcontent=' http://www.itl.nist.gov/div897/ctg/vrml/members.html '/>
<meta name='disclaimercontent=' 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. '/>
<meta name='referencecontent=' 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 '/>
<meta name='infocontent='Correct definition and compliance of this conformance scene is maintained by the X3D Working Group, https://www.web3d.org/working-groups/x3d'/>
<meta name='translatorcontent='Michael Kass NIST, Don Brutzman NPS'/>
<meta name='translatedcontent='21 January 2001'/>
<meta name='modifiedcontent='28 August 2023'/>
<meta name='descriptioncontent='Test the size field for a VisibilitySensor node. A Sphere geometry has an associated VisibilitySensor in front of it, at point 0 0 0. The default ViewPoint is at point 0 0 10, looking down the -Z axis. Because the bounding box, with dimensions 4 4 4 is in direct sight, an isActive event is generated by the enabled VisibilitySensor node, which is routed to enable a TimeSensor node, which starts a color animation of the Sphere. When the user moves to the second viewpoint, behing the bounding box, at point 0 0 -10, an isActive=false event is generated and the Sphere ceases to change color.'/>
<meta name='identifiercontent=' https://www.web3d.org/x3d/content/examples/ConformanceNist/Sensors/VisibilitySensor/centersize.x3d '/>
<meta name='generatorcontent=' Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html '/>
<meta name='generatorcontent='X3D-Edit 4.0, https://savage.nps.edu/X3D-Edit'/>
<meta name='licensecontent=' ../../license.html'/>
</head>
<!--

to top <!-- Event Graph ROUTE Table shows event connections -->
 
<!-- Index for DEF nodes: COLOR, GEOMETRY, INTERP_COLOR, TIME, VISIB_SENSOR

Index for Viewpoint nodes: Viewpoint_1, Viewpoint_2, Viewpoint_3
-->
<Scene>
<WorldInfo title='centersize.x3d'/>
<NavigationInfo type='"EXAMINE" "WALK" "FLY" "ANY"'/>
<Viewpoint description='Front View'/>
<Viewpoint description='Inside VisibilitySensorposition='0 0 0'/>
<Viewpoint description='Behind VisibilitySensorposition='0 0 -10'/>
<!-- ROUTE information for TIME node:  [from VISIB_SENSOR.isActive to enabled ] [from fraction_changed to INTERP_COLOR.set_fraction ] -->
<TimeSensor DEF='TIMEcycleInterval='2enabled='falseloop='true'/>

<!-- ROUTE information for INTERP_COLOR node:  [from TIME.fraction_changed to set_fraction ] [from value_changed to COLOR.set_diffuseColor ] -->
<ColorInterpolator DEF='INTERP_COLORkey='0 0.5 1keyValue='1 0 0 0 1 0 0 0 1'/>

<Group>
<!-- ROUTE information for VISIB_SENSOR node:  [from isActive to TIME.enabled ] -->
<VisibilitySensor DEF='VISIB_SENSORsize='4 4 4'/>

<Shape>
<Appearance>
<Material emissiveColor='1 1 1'/>
</Appearance>
<IndexedLineSet coordIndex='0 1 -1 1 2 -1 2 3 -1 3 0 -1 4 5 -1 5 6 -1 6 7 -1 7 4 -1 1 5 -1 2 6 -1 0 4 -1 7 3 -1'>
<Coordinate point='-2 -2 -2 2 -2 -2 2 2 -2 -2 2 -2 -2 -2 2 2 -2 2 2 2 2 -2 2 2'/>
</IndexedLineSet>
</Shape>
<Transform DEF='GEOMETRYtranslation='0 0 -20'>
<Shape>
<Appearance>
<!-- ROUTE information for COLOR node:  [from INTERP_COLOR.value_changed to set_diffuseColor ] -->
<Material DEF='COLORdiffuseColor='1 0 0'/>
</Appearance>
<Sphere radius='2'/>
</Shape>
</Transform>
</Group>
< ROUTE  fromNode=' VISIB_SENSOR' fromField='isActive' toNode=' TIME' toField='enabled'/>
< ROUTE  fromNode=' TIME' fromField='fraction_changed' toNode=' INTERP_COLOR' toField='set_fraction'/>
< ROUTE  fromNode=' INTERP_COLOR' fromField='value_changed' toNode=' COLOR' toField='set_diffuseColor'/>
</Scene>
</X3D>
<!--

to top <!-- Event Graph ROUTE Table shows event connections -->
 
<!-- Index for DEF nodes: COLOR, GEOMETRY, INTERP_COLOR, TIME, VISIB_SENSOR

Index for Viewpoint nodes: Viewpoint_1, Viewpoint_2, Viewpoint_3
-->

Event Graph ROUTE Table entries with 3 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.

VISIB_SENSOR
VisibilitySensor
isActive
SFBool

ROUTE
event to
(1)
TIME
TimeSensor
enabled
SFBool

 
 
then
TIME
TimeSensor
fraction_changed
SFFloat

ROUTE
event to
(2)
INTERP_COLOR
ColorInterpolator
set_fraction
SFFloat

 
 
then
INTERP_COLOR
ColorInterpolator
value_changed
SFColor

ROUTE
event to
(3)
COLOR
Material
set_diffuseColor
SFColor


TIME
TimeSensor
fraction_changed
SFFloat

ROUTE
event to
(1)
INTERP_COLOR
ColorInterpolator
set_fraction
SFFloat

 
 
then
INTERP_COLOR
ColorInterpolator
value_changed
SFColor

ROUTE
event to
(2)
COLOR
Material
set_diffuseColor
SFColor


-->

<!-- Online at
https://www.web3d.org/x3d/content/examples/ConformanceNist/Sensors/VisibilitySensor/centersizeIndex.html -->
<!-- Version control at
https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/ConformanceNist/Sensors/VisibilitySensor/centersize.x3d -->

<!-- Color legend: X3D terminology <X3dNode DEF='idName' field='value'/> matches XML terminology <XmlElement DEF='idName' attribute='value'/>
(Light-blue background: event-based behavior node or statement) (Grey background inside box: inserted documentation) (Magenta background: X3D Extensibility)
-->

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