<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.0//EN" "http://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 =' http://www.web3d.org/specifications/x3d-3.0.xsd '>
<head>
<meta name='title' content='SuperCobraSectionFormBearingDisplay.x3d'/>
<meta name='description' content='A demonstration of a Cobra helicopter section using cruise turn principles to conserve fuel'/>
<meta name='creator' content='Maj C. B. Lakey, USMC'/>
<meta name='translator' content=' Xeena VRML importer, X3D-Edit 3.1, http://www.web3d.org/x3d/content/README.X3D-Edit.html '/>
<meta name='created' content='10 March 2005'/>
<meta name='translated' content='10 March 2005'/>
<meta name='modified' content='12 January 2014'/>
<meta name='reference' content='AH1wSuperCobra-MV3204FinalProjectReport.pdf'/>
<meta name='identifier' content=' https://savage.nps.edu/Savage/AircraftHelicopters/AH1W-UnitedStates/SuperCobraSectionFormBearingDisplay.x3d '/>
<meta name='generator' content='X3D-Edit 3.2, https://savage.nps.edu/X3D-Edit'/>
<meta name='generator' content='Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html'/>
<meta name='reference' content=' http://www.goldwave.com; Goldwave commercial audio creation software used to generate wav file representing sound of rotors turning '/>
<meta name='license' content=' ../../license.html'/>
</head>
<!--
Index for DEF nodes : AircraftPathClock, AircraftPathOrientationInterpolator, AircraftPathTransformation, AircraftRollTransformation, Chasecam1, Chasecam2, Chasecam3, DashTwoAnimatedGroup, DashTwoBearingClock, DashTwoBearingPositionInterpolator, DashTwoBearingTransformation, DashTwoOrientationGroup, DashTwoRollOrientationInterpolator, DashTwoRollTransformation, Overheadcam, OverheadViewTransform, SingleAircraftGroup, SingleAircraftOrientationGroup, TwoAircraftAnimatedGroup
Index for Viewpoint images : Chasecam1, Chasecam2, Chasecam3, Overheadcam
-->
<Scene>
<!-- Background simulates an overwater scene -->
<Background groundColor='0 0 0'
  backUrl=' "urn:web3d:media:textures/panoramas/ocean_2_back.jpg" "../../../Basic/UniversalMediaPanoramas/ocean_2_back.jpg" "http://www.web3d.org/WorkingGroups/media/textures/panoramas/ocean_2_back.jpg" "http://www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas/ocean_2_back.jpg" "http://www.web3dmedia.com/UniversalMedia/textures/panoramas/ocean_2_back.jpg" "http://www.officetowers.com/UniversalMedia/textures/panoramas/ocean_2_back.jpg" "http://geometrek.com/UniversalMedia/textures/panoramas/ocean_2_back.jpg" "http://www.sc.ehu.es/ccwgamoa/UniversalMedia/textures/panoramas/ocean_2_back.jpg" '
  bottomUrl=' "urn:web3d:media:textures/panoramas/ocean_2_bottom.jpg" "ocean_2_bottom.jpg" "file:///c:/www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas/ocean_2_bottom.jpg" "http://www.web3d.org/WorkingGroups/media/textures/panoramas/ocean_2_bottom.jpg" "http://www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas/ocean_2_bottom.jpg" "http://www.web3dmedia.com/UniversalMedia/textures/panoramas/ocean_2_bottom.jpg" "http://www.officetowers.com/UniversalMedia/textures/panoramas/ocean_2_bottom.jpg" "http://geometrek.com/UniversalMedia/textures/panoramas/ocean_2_bottom.jpg" "http://www.sc.ehu.es/ccwgamoa/UniversalMedia/textures/panoramas/ocean_2_bottom.jpg" '
  frontUrl=' "urn:web3d:media:textures/panoramas/ocean_2_front.jpg" "../../../Basic/UniversalMediaPanoramas/ocean_2_front.jpg" "http://www.web3d.org/WorkingGroups/media/textures/panoramas/ocean_2_front.jpg" "http://www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas/ocean_2_front.jpg" "http://www.web3dmedia.com/UniversalMedia/textures/panoramas/ocean_2_front.jpg" "http://www.officetowers.com/UniversalMedia/textures/panoramas/ocean_2_front.jpg" "http://geometrek.com/UniversalMedia/textures/panoramas/ocean_2_front.jpg" "http://www.sc.ehu.es/ccwgamoa/UniversalMedia/textures/panoramas/ocean_2_front.jpg" '
  leftUrl=' "urn:web3d:media:textures/panoramas/ocean_2_left.jpg" "../../../Basic/UniversalMediaPanoramas/ocean_2_left.jpg" "http://www.web3d.org/WorkingGroups/media/textures/panoramas/ocean_2_left.jpg" "http://www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas/ocean_2_left.jpg" "http://www.web3dmedia.com/UniversalMedia/textures/panoramas/ocean_2_left.jpg" "http://www.officetowers.com/UniversalMedia/textures/panoramas/ocean_2_left.jpg" "http://geometrek.com/UniversalMedia/textures/panoramas/ocean_2_left.jpg" "http://www.sc.ehu.es/ccwgamoa/UniversalMedia/textures/panoramas/ocean_2_left.jpg" '
  rightUrl=' "urn:web3d:media:textures/panoramas/ocean_2_right.jpg" "../../../Basic/UniversalMediaPanoramas/ocean_2_right.jpg" "http://www.web3d.org/WorkingGroups/media/textures/panoramas/ocean_2_right.jpg" "http://www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas/ocean_2_right.jpg" "http://www.web3dmedia.com/UniversalMedia/textures/panoramas/ocean_2_right.jpg" "http://www.officetowers.com/UniversalMedia/textures/panoramas/ocean_2_right.jpg" "http://geometrek.com/UniversalMedia/textures/panoramas/ocean_2_right.jpg" "http://www.sc.ehu.es/ccwgamoa/UniversalMedia/textures/panoramas/ocean_2_right.jpg" '
  topUrl=' "urn:web3d:media:textures/panoramas/ocean_2_top.jpg" "ocean_2_top.jpg" "../../../Basic/UniversalMediaPanoramas/ocean_2_top.jpg" "http://www.web3d.org/WorkingGroups/media/textures/panoramas/ocean_2_top.jpg" "http://www.web3d.org/x3d/content/examples/Basic/UniversalMediaPanoramas/ocean_2_top.jpg" "http://www.web3dmedia.com/UniversalMedia/textures/panoramas/ocean_2_top.jpg" "http://www.officetowers.com/UniversalMedia/textures/panoramas/ocean_2_top.jpg" "http://geometrek.com/UniversalMedia/textures/panoramas/ocean_2_top.jpg" "http://www.sc.ehu.es/ccwgamoa/UniversalMedia/textures/panoramas/ocean_2_top.jpg" '/>
<Group DEF='TwoAircraftAnimatedGroup'>
<!-- ROUTE information for AircraftPathClock node:  [from fraction_changed to AircraftPathOrientationInterpolator.set_fraction ] -->
 <TimeSensor DEF='AircraftPathClock' cycleInterval='20' loop='true'/>
<!-- The aircraft path transform acts as a 'hinge' for moving the section in a circular path -->
<!-- ROUTE information for AircraftPathTransformation node:  [from AircraftPathOrientationInterpolator.value_changed to set_rotation ] -->
 <Transform DEF='AircraftPathTransformation' center='-30 0 0' translation='30 0 0'>
<Group DEF='SingleAircraftOrientationGroup'>
<Transform DEF='AircraftRollTransformation' rotation='0 0 1 0.785'>
<!-- The single aircraft group contains an inline of an AH-1W SuperCobra model; it currently uses the model with no animated lights; although there is also a model with lights animated, it is not advisable to inline it unless the CPU used is capable of high clock cycles (> 3 GHz) -->
<Group DEF='SingleAircraftGroup'>
<Transform rotation='0 1 0 -1.57079'>
<Inline
  url=' "SuperCobra.x3d" "https://savage.nps.edu/Savage/AircraftHelicopters/AH1W-UnitedStates/SuperCobra.x3d" "SuperCobra.wrl" "https://savage.nps.edu/Savage/AircraftHelicopters/AH1W-UnitedStates/SuperCobra.wrl" '/>
</Transform>
<Sound maxBack='150' maxFront='150' minBack='3' minFront='3'>
<AudioClip description='Helicopter rotors turning' loop='true'
  url=' "sounds/rotors.wav" "https://savage.nps.edu/Savage/AircraftHelicopters/AH1W-UnitedStates/rotors.wav" '/>
</Sound>
</Group>
</Transform>
<!-- The DashTwo AnimatedGroup contains all transformations that are distinc from the Lead aircraft (i.e., roll angle and bearing) -->
<Group DEF='DashTwoAnimatedGroup'>
<!-- ROUTE information for DashTwoBearingClock node:  [from fraction_changed to DashTwoBearingPositionInterpolator.set_fraction ] [from fraction_changed to DashTwoRollOrientationInterpolator.set_fraction ] -->
 <TimeSensor DEF='DashTwoBearingClock' cycleInterval='15' loop='true'/>
<!-- ROUTE information for DashTwoBearingTransformation node:  [from DashTwoBearingPositionInterpolator.value_changed to set_translation ] -->
 <Transform DEF='DashTwoBearingTransformation' translation='10 1 -10'>
<Group DEF='DashTwoOrientationGroup'>
<!-- DashTwoRollTransformation contains a'USE' node for the single aircraft, as well as two viewing nodes; the viewing nodes are slaved to the wingman position: one is a cockpit view, while the other is stationed approximately 20 meters behind the wingman -->
<!-- ROUTE information for DashTwoRollTransformation node:  [from DashTwoRollOrientationInterpolator.value_changed to set_rotation ] -->
 <Transform DEF='DashTwoRollTransformation' rotation='0 0 1 -0.15'>
<Group USE='SingleAircraftGroup'/>
<Viewpoint DEF='Chasecam1' description='Dash two chase camera' fieldOfView='1' orientation='0 1 0 3.14' position='0 5 -20'/>
<Viewpoint DEF='Chasecam2' description='Dash two cockpit camera' fieldOfView='1' orientation='0 1 0 3.14' position='0 0 2.2'/>
</Transform>
</Group>
<!-- The itnerpolators and routing nodes combine to describe the roll and position changes of the wingman -->
<!-- ROUTE information for DashTwoBearingPositionInterpolator node:  [from DashTwoBearingClock.fraction_changed to set_fraction ] [from value_changed to DashTwoBearingTransformation.set_translation ] -->
 <PositionInterpolator DEF='DashTwoBearingPositionInterpolator' key='0.00 0.01 0.05 0.25 0.45 0.49 0.50 0.51 0.55 0.75 0.95 0.9999' keyValue='15 5 -15 14 5 -15 12 5 -15 0 5 -12 -12 5 -8 -14 5 -6 -15 5 -5 -14 5 -6 -12 5 -8 0 5 -12 12 5 -15 14 5 -15'/>
<ROUTE fromNode='DashTwoBearingClock' fromField='fraction_changed' toNode='DashTwoBearingPositionInterpolator' toField='set_fraction'/>
<ROUTE fromNode='DashTwoBearingPositionInterpolator' fromField='value_changed' toNode='DashTwoBearingTransformation' toField='set_translation'/>
<!-- ROUTE information for DashTwoRollOrientationInterpolator node:  [from DashTwoBearingClock.fraction_changed to set_fraction ] [from value_changed to DashTwoRollTransformation.set_rotation ] -->
 <OrientationInterpolator DEF='DashTwoRollOrientationInterpolator' key='0.000 0.004 0.005 0.010 0.050 0.250 0.450 0.490 0.495 0.496 0.500 0.504 0.505 0.510 0.550 0.750 0.950 0.990 0.995 0.996' keyValue='0 0 1 1.000 0 0 1 1.000 0 0 1 1.000 0 0 1 0.990 0 0 1 0.950 0 0 1 0.600 0 0 1 0.050 0 0 1 0.010 0 0 1 0.000 0 0 1 0.000 0 0 1 0.000 0 0 1 0.000 0 0 1 0.000 0 0 1 0.010 0 0 1 0.050 0 0 1 0.600 0 0 1 0.950 0 0 1 0.990 0 0 1 1.000 0 0 1 1.000'/>
<ROUTE fromNode='DashTwoBearingClock' fromField='fraction_changed' toNode='DashTwoRollOrientationInterpolator' toField='set_fraction'/>
<ROUTE fromNode='DashTwoRollOrientationInterpolator' fromField='value_changed' toNode='DashTwoRollTransformation' toField='set_rotation'/>
</Transform>
</Group>
</Group>
<Viewpoint DEF='Chasecam3' description='Section chase camera' fieldOfView='1' orientation='0 1 0 3.14' position='0 5 -35'/>
</Transform>
<!-- ROUTE information for AircraftPathOrientationInterpolator node:  [from AircraftPathClock.fraction_changed to set_fraction ] [from value_changed to AircraftPathTransformation.set_rotation ] -->
 <OrientationInterpolator DEF='AircraftPathOrientationInterpolator' key='0.0 0.5 1.0' keyValue='0 1 0 0.0 0 1 0 -3.14 0 1 0 -6.28'/>
<ROUTE fromNode='AircraftPathClock' fromField='fraction_changed' toNode='AircraftPathOrientationInterpolator' toField='set_fraction'/>
<ROUTE fromNode='AircraftPathOrientationInterpolator' fromField='value_changed' toNode='AircraftPathTransformation' toField='set_rotation'/>
<!-- The overhead view is transformed up along the Y-axis prior to orienting it straight downward -->
<Transform DEF='OverheadViewTransform' translation='0 40 0'>
<Viewpoint DEF='Overheadcam' description='Overhead view of cruise turns' fieldOfView='2' orientation='1 0 0 -1.57'/>
</Transform>
</Group>
</Scene>
</X3D>
<!--
Index for DEF nodes : AircraftPathClock, AircraftPathOrientationInterpolator, AircraftPathTransformation, AircraftRollTransformation, Chasecam1, Chasecam2, Chasecam3, DashTwoAnimatedGroup, DashTwoBearingClock, DashTwoBearingPositionInterpolator, DashTwoBearingTransformation, DashTwoOrientationGroup, DashTwoRollOrientationInterpolator, DashTwoRollTransformation, Overheadcam, OverheadViewTransform, SingleAircraftGroup, SingleAircraftOrientationGroup, TwoAircraftAnimatedGroup
Index for Viewpoint images : Chasecam1, Chasecam2, Chasecam3, Overheadcam
-->

<!-- Color key: <X3dNode DEF='idName' field='value'/> matches <XmlElement DEF='idName' attribute='value'/>
(Light blue background: behavior node) (Grey background: inserted documentation) (Magenta background: X3D extensibility)
-->

<!-- Additional help information about X3D scenes: X3D Resources, X3D Scene Authoring Hints and X3D Tooltips -->