X3D Model Documentation: Figure09_7CylinderSensorWithAxes.x3d

  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='Figure09_7CylinderSensorWithAxes.x3d'/>
  6            <meta name='creator' content='Figure 9.7, The VRML 2.0 Sourcebook, Copyright [1997] By Andrea L. Ames, David R. Nadeau, and John L. Moreland'/>
  7            <meta name='reference' content='http://www.wiley.com/legacy/compbooks/vrml2sbk/ch09/09fig07.htm'/>
  8            <meta name='translator' content='Don Brutzman'/>
  9            <meta name='created' content='12 August 2000'/>
 10            <meta name='modified' content='20 October 2019'/>
 11            <meta name='description' content='Two shapes that rotate about an axis when the viewer drags them, with coordinate axes superimposed to show X3D/VRML directions.'/>
 12            <meta name='identifier' content='https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter09SensingViewer/Figure09_7CylinderSensorWithAxes.x3d'/>
 13            <meta name='generator' content='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
 14            <meta name='license' content='../../license.html'/>
 15       </head>
<!--
<!--
Event Graph ROUTE Table shows event connections.
-->

<!-- to top Index for DEF nodes: CoordinateAxes, FIRST_APPEARANCE, FIRST_CYLINDERSENSOR, FIRST_TRANSFORM, SECOND_CYLINDERSENSOR, SECOND_TRANSFORM, TRANSPARENT_CYLINDER_TRANSFORM
-->
 16       <Scene>
 17            <!-- Click and drag to rotate shapes. Superfluous Group nodes removed. -->
 18            <!-- First rotate to reorient the first CylinderSensor -->
 19            <WorldInfo title='Figure09_7CylinderSensorWithAxes.x3d'/>
 20            <Transform rotation='1 0 0 1.57' translation='-2 0 0'>
 21 
               <!-- ROUTE information for FIRST_CYLINDERSENSOR node:  [from rotation_changed to FIRST_TRANSFORM.set_rotation ] -->
                <CylinderSensor DEF='FIRST_CYLINDERSENSOR' description='Click and drag to rotate' maxAngle='1.57' minAngle='-0.78'/>
 22 
               <!-- ROUTE information for FIRST_TRANSFORM node:  [from FIRST_CYLINDERSENSOR.rotation_changed to set_rotation ] -->
                <Transform DEF='FIRST_TRANSFORM'>
 23                      <!-- Note that we are connecting a rotation output to a rotation input in these ROUTEs. -->
 24                      < ROUTE  fromNode='FIRST_CYLINDERSENSOR' fromField='rotation_changed' toNode='FIRST_TRANSFORM' toField='set_rotation'/>
 25                      <!-- Keep transparent user-interface geometry in this rotated CylinderSensor coordinate frame -->
 26 
                    <!-- Transform TRANSPARENT_CYLINDER_TRANSFORM is a DEF node that has 1 USE node: USE_1 -->
                     <Transform DEF='TRANSPARENT_CYLINDER_TRANSFORM'>
 27                           <Shape>
 28                                <Cylinder height='.5'/>
 29                                <Appearance>
 30                                     <Material diffuseColor='.7 .7 .7' transparency='.5'/>
 31                                </Appearance>
 32                           </Shape>
 33                      </Transform>
 34                      <!-- Now restore original Y=up coordinate frame prior to drawing actual geometry -->
 35                      <Transform rotation='1 0 0 -1.57'>
 36                           <Shape>
 37                                <Box size='1 3 1'/>
 38 
                              <!-- Appearance FIRST_APPEARANCE is a DEF node that has 1 USE node: USE_1 -->
                               <Appearance DEF='FIRST_APPEARANCE'>
 39                                     <Material diffuseColor='.9 .9 .1' emissiveColor='.2 .2 .05'/>
 40                                </Appearance>
 41                           </Shape>
 42                      </Transform>
 43                 </Transform>
 44            </Transform>
 45            <!-- Note this second example uses a simpler pattern: since we are not rotating the axis of the CylinderSensor away from the vertical, we do not need to change that rotation back again for the target geometry. -->
 46 
          <!-- ROUTE information for SECOND_TRANSFORM node:  [from SECOND_CYLINDERSENSOR.rotation_changed to set_rotation ] -->
           <Transform DEF='SECOND_TRANSFORM' translation='2 0 0'>
 47 
               <!-- ROUTE information for SECOND_CYLINDERSENSOR node:  [from rotation_changed to SECOND_TRANSFORM.set_rotation ] -->
                <CylinderSensor DEF='SECOND_CYLINDERSENSOR' description='Click and drag to rotate'/>
 48                 < ROUTE  fromNode='SECOND_CYLINDERSENSOR' fromField='rotation_changed' toNode='SECOND_TRANSFORM' toField='set_rotation'/>
 49                 <!-- Keep transparent user-interface geometry in this rotated CylinderSensor coordinate frame -->
 50                 <Transform USE='TRANSPARENT_CYLINDER_TRANSFORM'/>
 51                 <!-- Rotate actual geometry -->
 52                 <Transform rotation='1 0 0 0.52'>
 53                      <Shape>
 54                           <Cone/>
 55                           <Appearance USE='FIRST_APPEARANCE'/>
 56                      </Shape>
 57                 </Transform>
 58            </Transform>
 59            <!-- Adding this Inline reference to another scene superimposes X3D/VRML coordinate system axes. -->
 60            <Transform scale='4 4 4'>
 61                 <Inline DEF='CoordinateAxes'   url=' "../../X3dForWebAuthors/Chapter03Grouping/CoordinateAxes.x3d" "https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter03Grouping/CoordinateAxes.x3d" "https://savage.nps.edu/Savage/Tools/Authoring/CoordinateAxes.x3d" "../../X3dForWebAuthors/Chapter03Grouping/CoordinateAxes.wrl" "https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter03Grouping/CoordinateAxes.wrl" "https://savage.nps.edu/Savage/Tools/Authoring/CoordinateAxes.wrl" '/>
 62            </Transform>
 63       </Scene>
 64  </X3D>
<!--
<!--
Event Graph ROUTE Table shows event connections.
-->

<!-- to top Index for DEF nodes: CoordinateAxes, FIRST_APPEARANCE, FIRST_CYLINDERSENSOR, FIRST_TRANSFORM, SECOND_CYLINDERSENSOR, SECOND_TRANSFORM, TRANSPARENT_CYLINDER_TRANSFORM
-->
X3D Tooltips element index: Appearance, Box, Cone, Cylinder, CylinderSensor, head, Inline, Material, meta, ROUTE, Scene, Shape, Transform, WorldInfo, X3D, accessType and type, XML data types, field types

Event Graph ROUTE Table entries with 2 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.

FIRST_CYLINDERSENSOR
CylinderSensor
rotation_changed
SFRotation
→
ROUTE
event to
(1)
FIRST_TRANSFORM
Transform
set_rotation
SFRotation

SECOND_CYLINDERSENSOR
CylinderSensor
rotation_changed
SFRotation
→
ROUTE
event to
(1)
SECOND_TRANSFORM
Transform
set_rotation
SFRotation
Additional guidance on X3D animation can be found in the 10-Step Animation Design Process and Event Tracing hint sheets. Have fun with X3D! 😀
-->
<!-- Online at
https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter09SensingViewer/Figure09_7CylinderSensorWithAxesIndex.html -->
<!-- Version control at
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<!-- Color 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)
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