| 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='Immersive' 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=' PhysicalUnitRepresentationPrototypes.x3d '/> | 
| 6 | <meta name='description' content='Prototypes to demonstrate functionality for Real-Length Representation nodes.'/> | 
| 7 | <meta name=' warning ' content=' under development '/> | 
| 8 | <meta name='creator' content='Don Brutzman'/> | 
| 9 | <meta name='created' content='22 July 2007'/> | 
| 10 | <meta name='modified' content='20 October 2019'/> | 
| 11 | <meta name='reference' content='Myeon Won Lee and Sun-Young Cho, "Real Length Representation for Virtual Objects," point paper, University of Suwon, Korea, June 2007.'/> | 
| 12 | <meta name='subject' content='X3D scaling and metadata convenience nodes'/> | 
| 13 | <meta name='identifier' content=' https://www.web3d.org/x3d/content/examples/Basic/development/PhysicalUnitRepresentationPrototypes.x3d '/> | 
| 14 | <meta name='generator' content='X3D-Edit 3.3, https://www.web3d.org/x3d/tools/X3D-Edit'/> | 
| 15 | <meta name='license' content='../license.html'/> | 
| 16 | </head> | 
 DEF nodes index: 
               
               MyZeptoScale,
ZeptoScale
               
               
                  DEF nodes index: 
               
               MyZeptoScale,
ZeptoScale
| 17 | <Scene> | 
| 18 | <!-- ==================== --> | 
| 19 | <!-- Initial approach: direct scaling --> | 
| 20 | <WorldInfo title='PhysicalUnitRepresentationPrototypes.x3d'/> | 
| 21 | <Transform DEF='MyZeptoScale' scale='1.0E-10 1.0E-10 1.0E-10'> | 
| 22 | <Transform scale='1.0E-11 1.0E-11 1.0E-11'> | 
| 23 | <MetadataString name='lengthUnit' value='"ZEPTO meters"'/> | 
| 24 | <!-- scaled content goes here --> | 
| 25 | <Shape> | 
| 26 | <Box/> | 
| 27 | </Shape> | 
| 28 | </Transform> | 
| 29 | </Transform> | 
| 30 | <!-- ==================== --> | 
| 31 | <!-- Second approach: prototype nodes for scaling --> | 
| 32 | <!-- ==================== --> | 
| 33 | <ProtoDeclare name='ZeptoScale' appinfo='ZeptoScale applies a uniform scale factor of 10^-21 to all children'> | 
| 34 | <ProtoInterface> | 
| 35 | <field name='children' type='MFNode' accessType='inputOutput'> | 
| 36 | <!-- initialization: NULL node --> | 
| 37 | </field> | 
| 38 | <!-- TODO: can add other fields for Transform node here to ensure completeness --> | 
| 39 | </ProtoInterface> | 
| 40 | <ProtoBody> | 
| 41 | <Transform DEF='ZeptoScale' scale='1.0E-10 1.0E-10 1.0E-10'> | 
| 42 | <Transform scale='1.0E-11 1.0E-11 1.0E-11'> | 
| 43 | <IS> | 
| 44 | <connect nodeField='children' protoField='children'/> | 
| 45 | </IS> | 
| 46 | </Transform> | 
| 47 | </Transform> | 
| 48 | </ProtoBody> | 
| 49 | </ProtoDeclare> | 
| 50 | <!-- ==================== --> | 
| 51 | <!-- Example use of prototype: the following should be very very small... --> | 
| 52 | <ProtoInstance name='ZeptoScale'> | 
| 53 | <fieldValue name='children'> | 
| 54 | <Shape> | 
| 55 | <Sphere/> | 
| 56 | </Shape> | 
| 57 | </fieldValue> | 
| 58 | </ProtoInstance> | 
| 59 | <!-- ==================== --> | 
| 60 | <Background groundColor='0.25 0.25 0.25' skyColor='0.25 0.25 0.25'/> | 
| 61 | </Scene> | 
| 62 | </X3D> | 
 DEF nodes index: 
         
         MyZeptoScale,
ZeptoScale
         
         
            DEF nodes index: 
         
         MyZeptoScale,
ZeptoScale
Event Graph ROUTE Table with 0 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.
| line 52 ProtoInstance ZeptoScale | No direct ROUTE connection found for events to/from this node. This ProtoInstance contains SFNode/MFNode fieldValue declaration with direct access to other nodes, and thus has potential to produce run-time animation. | 
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          DEF='idName' attribute='value'/> 
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<ProtoInstance name='ProtoName'>
	<field
         name='fieldName'/> </ProtoInstance>
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