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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 4.0//EN" "https://www.web3d.org/specifications/x3d-4.0.dtd">
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<X3D profile='Immersive' version='4.0'
xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance'
xsd:noNamespaceSchemaLocation='https://www.web3d.org/specifications/x3d-4.0.xsd'>
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<head>
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<meta name='title' content='MetadataNodeExamplesX3D4.x3d'/>
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<meta name='description' content='Simple examples of meta statements, comments, WorldInfo node and typed metadata nodes.'/>
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<meta name='creator' content='Don Brutzman'/>
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<meta name='created' content='30 September 2011'/>
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<meta name='modified' content='30 September 2023'/>
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<meta name='reference' content='Original name MetadataNodeExamples.x3d, split and renamed since handling of metadata containerField defaults changed in X3D4.'/>
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<meta name='reference' content='MetadataNodeExamplesX3D3.x3d'/>
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<meta name='specificationSection' content='X3D 4.0 Architecture, ISO/IEC 19775-1:2023, 4 Concepts, 4.3.2 Root nodes'/>
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<meta name='specificationUrl' content='https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/concepts.html#Rootnodes'/>
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<meta name='info' content='Information in head and meta elements is retained after a scene is parsed and loaded, and can be referenced via the Scene Access Interface (SAI) or Document Object Model (DOM)'/>
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<meta name='info' content='Authoring note: MetadataBoolean requires X3D version 4.0, as used in this example scene'/>
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<meta name='reference' content='The following referenced chapter is published online but was not included in the printed book.'/>
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<meta name='reference' content='Chapter15MetadataInformation.html'/>
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<meta name='reference' content='https://x3dgraphics.com/chapters/Chapter15MetadataInformation.html'/>
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<meta name='reference' content='https://X3dGraphics.com'/>
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<meta name='reference' content='https://www.web3d.org/x3d/content/examples/X3dResources.html'/>
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<meta name='rights' content='Copyright 2006, Daly Realism and Don Brutzman'/>
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<meta name='subject' content='X3D book, X3D graphics, X3D-Edit, http://www.x3dGraphics.com'/>
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<meta name='identifier' content='https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter15Metadata/MetadataNodeExamplesX3D4.x3d'/>
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<meta name='generator' content='X3D-Edit 4.0,
https://savage.nps.edu/X3D-Edit'/>
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<meta name='license' content='../license.html'/>
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</head>
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<Scene>
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<!-- May 2017: X3D4 Architecture Specification clarification allows Metadata nodes at top level of Scene graph. -->
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<MetadataString name='TestRootMetadataNode' value='"Check whether scene root Metadata* node is satisfactory." "Note that all SFString values must be quoted."'/>
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<!-- Comments can appear between nodes (XML elements) but are not retained after a scene is parsed, loaded and playing -->
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<WorldInfo DEF='MyWorldInfo' info='"Metadata strings" "can go here" "as string array values"' title='MetadataNodeExamplesX3D4.x3d Example Scene'>
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<!-- Structured information can go in Metadata nodes. Note that any X3D node can contain a single Metadata node with containerField='metadata' -->
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<MetadataSet DEF='MyMetadataSetNode' containerField='metadata' name='Metadata_name' reference='SomeReferenceStandard 1.2.3c'>
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<MetadataBoolean DEF='MyMetadataBooleanNode' name='Coin Flip' reference='MetadataBoolean supported in X3D v3.3 and later' value='true false true false'/>
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<MetadataDouble DEF='MyMetadataDoubleNode' name='Metadata_name' reference='SomeReferenceStandard 1.2.3c' value='3.141592658 2.71812181'/>
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<!-- MetadataFloat
MyMetadataFloatNode is a DEF node that has 1 USE node: USE_1 -->
< MetadataFloat DEF=' MyMetadataFloatNode' name=' Metadata_name' reference=' SomeReferenceStandard 1.2.3c' value=' 9.8 6.023e+23'/>
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<!-- MetadataInteger
MyMetadataIntegerNode is a DEF node that has 1 USE node: USE_1 -->
< MetadataInteger DEF=' MyMetadataIntegerNode' name=' Metadata_name' reference=' SomeReferenceStandard 1.2.3c' value=' 6 28 496'/>
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<!-- MetadataString
MyMetadataStringNode is a DEF node that has 1 USE node: USE_1 -->
< MetadataString DEF=' MyMetadataStringNode' name=' Metadata_name' reference=' SomeReferenceStandard 1.2.3c' value=' "Part 27" "P27" "p27"'/>
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<MetadataSet DEF='NestedMetadataSetNode' containerField='metadata' name='TestNestedMetadataSetNodes'>
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<!-- MetadataSet can also contain multiple Metadata nodes with default containerField='value' including USE nodes -->
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<MetadataString USE='MyMetadataStringNode'/>
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<MetadataInteger USE='MyMetadataIntegerNode'/>
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<MetadataFloat USE='MyMetadataFloatNode'/>
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<MetadataFloat name='coefficients' value='3.141592653 2.7128 1 0'/>
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</MetadataSet>
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</MetadataSet>
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</WorldInfo>
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<Background skyColor='0 0.439216 0.760784'/>
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<Viewpoint description='View scene source to see metadata examples' position='0 0 9'/>
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<Anchor description='Load scene index page' parameter='"target=_blank"'
url=' "MetadataNodeExamplesIndex.html" "https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter15Metadata/MetadataNodeExamplesIndex.html" '>
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<Shape>
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<Text string='"View scene source" "to see" "metadata examples"'>
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<FontStyle justify='"MIDDLE" "MIDDLE"'/>
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</Text>
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<Appearance>
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<Material diffuseColor='1 0.992157 0.039216'/>
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</Appearance>
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</Shape>
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</Anchor>
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</Scene>
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</X3D>
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Index for DEF nodes:
MyMetadataBooleanNode,
MyMetadataDoubleNode,
MyMetadataFloatNode,
MyMetadataIntegerNode,
MyMetadataSetNode,
MyMetadataStringNode,
MyWorldInfo,
NestedMetadataSetNode
