| 1 | <?xml version="1.0" encoding="UTF-8"?> | 
| 2 | <!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 4.0//EN" "https://www.web3d.org/specifications/x3d-4.0.dtd"> | 
| 3 | <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'> | 
| 4 | <head> | 
| 5 | <meta name='title' content=' ShuttlesAndPendulums.x3d '/> | 
| 6 | <meta name='description' content='X3D encodings example: animation of shuttle and pendulum prototype nodes.'/> | 
| 7 | <meta name='creator' content='Don Brutzman and Joe Williams'/> | 
| 8 | <meta name='created' content='1 June 2002'/> | 
| 9 | <meta name='modified' content='28 September 2025'/> | 
| 10 | <meta name='specificationSection' content='X3D encodings, ISO/IEC 19776-1.3, Part 1: XML encoding, Annex C.14 Shuttles and pendulums'/> | 
| 11 | <meta name='specificationUrl' content='https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19776-1v4.0-CD/Part01/examples.html#ShuttlesAndPendulums'/> | 
| 12 | <meta name='identifier' content=' https://www.web3d.org/x3d/content/examples/Basic/X3dSpecifications/ShuttlesAndPendulums.x3d '/> | 
| 13 | <meta name='generator' content='X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit'/> | 
| 14 | <meta name='license' content='../license.html'/> | 
| 15 | </head> | 
 DEF nodes index: 
               
               F,
FF,
I,
II,
S,
SS,
T,
TT
               
               
                  DEF nodes index: 
               
               F,
FF,
I,
II,
S,
SS,
T,
TT
| 16 | <Scene> | 
| 17 | <WorldInfo title='ShuttlesAndPendulums.x3d'/> | 
| 18 | <ProtoDeclare name='Shuttle'> | 
| 19 | <ProtoInterface> | 
| 20 | <field name='rate' type='SFTime' value='1' accessType='initializeOnly'/> | 
| 21 | <field name='distance' type='SFFloat' value='1' accessType='initializeOnly'/> | 
| 22 | <field name='children' type='MFNode' accessType='initializeOnly'> | 
| 23 | <!-- initial value is empty node array --> | 
| 24 | </field> | 
| 25 | <field name='startTime' type='SFTime' value='0' accessType='inputOutput'/> | 
| 26 | <field name='stopTime' type='SFTime' value='0' accessType='inputOutput'/> | 
| 27 | <field name='loop' type='SFBool' value='true' accessType='initializeOnly'/> | 
| 28 | </ProtoInterface> | 
| 29 | <ProtoBody> | 
| 30 | 
                    <!-- ROUTE information for F node: 
[from I.value_changed to translation
                                    ]
 --> <Transform DEF='F'> | 
| 31 | <IS> | 
| 32 | <connect nodeField='children' protoField='children'/> | 
| 33 | </IS> | 
| 34 | </Transform> | 
| 35 | <!-- after first node in ProtoDeclare, remainder of nodes do not render --> | 
| 36 | 
                    <!-- ROUTE information for T node: 
[from fraction_changed to I.set_fraction
                                    ]
 --> <TimeSensor DEF='T'> | 
| 37 | <IS> | 
| 38 | <connect nodeField='cycleInterval' protoField='rate'/> | 
| 39 | <connect nodeField='startTime' protoField='startTime'/> | 
| 40 | <connect nodeField='stopTime' protoField='stopTime'/> | 
| 41 | <connect nodeField='loop' protoField='loop'/> | 
| 42 | </IS> | 
| 43 | </TimeSensor> | 
| 44 | 
                    <!-- ROUTE information for S node: 
[from position to I.keyValue
                                    ]
 --> <Script DEF='S'> | 
| 45 | <field name='distance' type='SFFloat' accessType='initializeOnly'/> | 
| 46 | <field name='position' type='MFVec3f' accessType='outputOnly'/> | 
| 47 | <IS> | 
| 48 | <connect nodeField='distance' protoField='distance'/> | 
| 49 | </IS> | 
| 
                                             <![CDATA[
                                          
          
ecmascript:
            function initialize () {     // constructor:setup interpolator
              pos1 = new SFVec3f(-distance, 0, 0);
              pos2 = new SFVec3f(distance, 0, 0);
              position = new MFVec3f(pos1, pos2, pos1);
            }
        
                                             ]]>
                                           | |
| 51 | </Script> | 
| 52 | 
                    <!-- ROUTE information for I node: 
[from T.fraction_changed to set_fraction
                                    ]
[from S.position to keyValue
                                    ]
[from value_changed to F.translation
                                    ]
 --> <PositionInterpolator DEF='I' key='0 0.5 1' keyValue='-1 0 0 1 0 0 -1 0 0'/> | 
| 53 | < ROUTE fromNode='T' fromField='fraction_changed' toNode='I' toField='set_fraction'/> | 
| 54 | < ROUTE fromNode='I' fromField='value_changed' toNode='F' toField='translation'/> | 
| 55 | < ROUTE fromNode='S' fromField='position' toNode='I' toField='keyValue'/> | 
| 56 | </ProtoBody> | 
| 57 | </ProtoDeclare> | 
| 58 | <ProtoDeclare name='Pendulum'> | 
| 59 | <ProtoInterface> | 
| 60 | <field name='rate' type='SFTime' value='1' accessType='initializeOnly'/> | 
| 61 | <field name='maxAngle' type='SFFloat' value='3.14159' accessType='initializeOnly'/> | 
| 62 | <field name='children' type='MFNode' accessType='initializeOnly'> | 
| 63 | <!-- initial value is empty node array --> | 
| 64 | </field> | 
| 65 | <field name='startTime' type='SFTime' value='0' accessType='inputOutput'/> | 
| 66 | <field name='stopTime' type='SFTime' value='0' accessType='inputOutput'/> | 
| 67 | <field name='loop' type='SFBool' value='true' accessType='initializeOnly'/> | 
| 68 | </ProtoInterface> | 
| 69 | <ProtoBody> | 
| 70 | 
                    <!-- ROUTE information for FF node: 
[from II.value_changed to rotation
                                    ]
 --> <Transform DEF='FF'> | 
| 71 | <IS> | 
| 72 | <connect nodeField='children' protoField='children'/> | 
| 73 | </IS> | 
| 74 | </Transform> | 
| 75 | <!-- after first node in ProtoDeclare, remainder of nodes do not render --> | 
| 76 | 
                    <!-- ROUTE information for TT node: 
[from fraction_changed to II.set_fraction
                                    ]
 --> <TimeSensor DEF='TT'> | 
| 77 | <IS> | 
| 78 | <connect nodeField='cycleInterval' protoField='rate'/> | 
| 79 | <connect nodeField='startTime' protoField='startTime'/> | 
| 80 | <connect nodeField='stopTime' protoField='stopTime'/> | 
| 81 | <connect nodeField='loop' protoField='loop'/> | 
| 82 | </IS> | 
| 83 | </TimeSensor> | 
| 84 | 
                    <!-- ROUTE information for SS node: 
[from rotation to II.keyValue
                                    ]
 --> <Script DEF='SS'> | 
| 85 | <field name='maxAngle' type='SFFloat' accessType='initializeOnly'/> | 
| 86 | <field name='rotation' type='MFRotation' accessType='outputOnly'/> | 
| 87 | <IS> | 
| 88 | <connect nodeField='maxAngle' protoField='maxAngle'/> | 
| 89 | </IS> | 
| 
                                             <![CDATA[
                                          
          
ecmascript:
            function initialize() {     // constructor: setup interpolator
              rot1 = new SFRotation(0, 0, 1, 0);
              rot2 = new SFRotation(0, 0, 1, maxAngle/2);
              rot3 = new SFRotation(0, 0, 1, maxAngle);
              rotation = new MFRotation(rot1, rot2, rot3, rot2, rot1);
            }
        
                                             ]]>
                                           | |
| 91 | </Script> | 
| 92 | 
                    <!-- ROUTE information for II node: 
[from TT.fraction_changed to set_fraction
                                    ]
[from SS.rotation to keyValue
                                    ]
[from value_changed to FF.rotation
                                    ]
 --> <OrientationInterpolator DEF='II' key='0 0.25 0.5 0.75 1' keyValue='0 0 1 0 0 0 1 1.57 0 0 1 3.14 0 0 1 1.57 0 0 1 0'/> | 
| 93 | < ROUTE fromNode='TT' fromField='fraction_changed' toNode='II' toField='set_fraction'/> | 
| 94 | < ROUTE fromNode='II' fromField='value_changed' toNode='FF' toField='rotation'/> | 
| 95 | < ROUTE fromNode='SS' fromField='rotation' toNode='II' toField='keyValue'/> | 
| 96 | </ProtoBody> | 
| 97 | </ProtoDeclare> | 
| 98 | <Transform translation='-3 0 0'> | 
| 99 | <ProtoInstance name='Pendulum'> | 
| 100 | <fieldValue name='rate' value='3'/> | 
| 101 | <fieldValue name='maxAngle' value='6.28'/> | 
| 102 | <fieldValue name='children'> | 
| 103 | <Shape> | 
| 104 | <Cylinder height='5'/> | 
| 105 | <Appearance> | 
| 106 | <Material diffuseColor='0.8 0.1 0'/> | 
| 107 | </Appearance> | 
| 108 | </Shape> | 
| 109 | </fieldValue> | 
| 110 | </ProtoInstance> | 
| 111 | </Transform> | 
| 112 | <Transform> | 
| 113 | <ProtoInstance name='Shuttle'> | 
| 114 | <fieldValue name='rate' value='2'/> | 
| 115 | <fieldValue name='children'> | 
| 116 | <Shape> | 
| 117 | <Sphere/> | 
| 118 | <Appearance> | 
| 119 | <Material diffuseColor='0.1 0.8 0'/> | 
| 120 | </Appearance> | 
| 121 | </Shape> | 
| 122 | </fieldValue> | 
| 123 | </ProtoInstance> | 
| 124 | </Transform> | 
| 125 | </Scene> | 
| 126 | </X3D> | 
 DEF nodes index: 
         
         F,
FF,
I,
II,
S,
SS,
T,
TT
         
         
            DEF nodes index: 
         
         F,
FF,
I,
II,
S,
SS,
T,
TT
Event Graph ROUTE Table entries with 6 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.
| T TimeSensor fraction_changed SFFloat | I PositionInterpolator set_fraction SFFloat | then | I PositionInterpolator value_changed SFVec3f | F Transform translation SFVec3f | 
| TT TimeSensor fraction_changed SFFloat | II OrientationInterpolator set_fraction SFFloat | then | II OrientationInterpolator value_changed SFRotation | FF Transform rotation SFRotation | 
| S Script position MFVec3f | I PositionInterpolator keyValue MFVec3f | then | I PositionInterpolator value_changed SFVec3f | F Transform translation SFVec3f | 
| SS Script rotation MFRotation | II OrientationInterpolator keyValue MFRotation | then | II OrientationInterpolator value_changed SFRotation | FF Transform rotation SFRotation | 
| line 99 ProtoInstance Pendulum | 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. | 
| line 113 ProtoInstance Shuttle | 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. | 
         <!--
Color-coding 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)
   
<ProtoInstance name='ProtoName'>
	<field
         name='fieldName'/> </ProtoInstance>
 -->
      
         
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