@prefix :        <https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/Tetrahedron.ttl#> .
@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema:  <http://schema.org/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
@prefix x3d:     <https://www.web3d.org/specifications/x3d-4.0.xsd#> .
@prefix x3do:    <https://www.web3d.org/specifications/X3dOntology4.0#> .

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  x3do:content 'Tetrahedron.x3d' ;
  x3do:name 'title' .
:meta_1_2 a owl:NamedIndividual, x3do:meta ;
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  x3do:content 'Tetrahedron is an 4-sided triangular pyramid with 4 vertices, 4 triangular faces and 6 edges. A regular tetrahedron is a polyhedron assembled from equilateral triangles and is a Platonic solid. Tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces.' ;
  x3do:name 'description' .
:meta_1_3 a owl:NamedIndividual, x3do:meta ;
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  x3do:content '27 September 2014' ;
  x3do:name 'created' .
:meta_1_4 a owl:NamedIndividual, x3do:meta ;
  x3do:hasParent :head ;
  x3do:content '3 September 2025' ;
  x3do:name 'modified' .
:meta_1_5 a owl:NamedIndividual, x3do:meta ;
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  x3do:content 'Don Brutzman' ;
  x3do:name 'creator' .
:meta_1_6 a owl:NamedIndividual, x3do:meta ;
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  x3do:content 'Tetrahedron.ply' ;
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  x3do:content 'https://en.wiktionary.org/wiki/tetrahedron' ;
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:meta_1_10 a owl:NamedIndividual, x3do:meta ;
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  x3do:content 'Meshlab X3D Exported, http://meshlab.sourceforge.net' ;
  x3do:name 'generator' .
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  x3do:content '../license.html' ;
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:meta dcterms:title "Tetrahedron.x3d" .
:meta dcterms:description "Tetrahedron is an 4-sided triangular pyramid with 4 vertices, 4 triangular faces and 6 edges. A regular tetrahedron is a polyhedron assembled from equilateral triangles and is a Platonic solid. Tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces." .
:meta dcterms:created "27 September 2014" .
:meta dcterms:modified "3 September 2025" .
:meta dcterms:creator "Don Brutzman" .
:meta dcterms:reference "Tetrahedron.ply" .
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:meta dcterms:reference "https://en.wikipedia.org/wiki/Pyramid_(geometry)" .
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:meta dcterms:reference "http://www.kjmaclean.com/Geometry/Tetrahedron.html" .
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:Scene a owl:NamedIndividual, x3do:Scene ;
  x3do:hasParent :X3D ;
  x3do:hasChildren :WorldInfo_2_1, :Background_2_2, :Viewpoint_2_3, :Viewpoint_2_4, :Viewpoint_2_5, :Tetrahedron, :CoordinateAxesAdjustedScale .
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  x3do:title 'Tetrahedron.x3d' .
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  x3do:skyColor ( 0.5 1 0.9 ) .
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  x3do:hasParent :Scene ;
  x3do:description 'Tetrahedron from above' ;
  x3do:orientation ( 1 0 0 -1.570796 ) ;
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  x3do:hasAppearance :Appearance_2_6_2 ;
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  x3do:point ( 1 1 1 -1 1 -1 -1 -1 1 1 -1 -1 ) .
:Appearance_2_6_2 a owl:NamedIndividual, x3do:Appearance ;
  x3do:hasParent :Tetrahedron ;
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:Material_2_6_2_1 a owl:NamedIndividual, x3do:Material ;
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  x3do:diffuseColor ( 0.2 0.5 0.8 ) .
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  x3do:DEF 'CoordinateAxesAdjustedScale' ;
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