X3D Model Documentation: NurbsPatchSurfaceExample.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            <component level='1name='NURBS'/>
  6            <meta name='titlecontent='NurbsPatchSurfaceExample.x3d'/>
  7            <meta name='descriptioncontent='Animated NURBS patch'/>
  8            <meta name='creatorcontent='Jeffrey Weekley, Charles Adams'/>
  9            <meta name='createdcontent='6 February 2003'/>
 10            <meta name='modifiedcontent='20 October 2019'/>
 11            <meta name=' warning content=' missing default values for knot and weight array fields in NurbsPatchSurface (weight default: all 1 values) ; not required by X3D specification, but some browsers may fail without them. '/>
 12            <meta name='referencecontent='http://edocs.nps.edu/npspubs/scholarly/theses/2003/Jun/03Jun_Adams.pdf'/>
 13            <meta name=' warning content=' under development, needs to be upgraded to final version of X3D NURBS nodes '/>
 14            <meta name='Imagecontent='NurbsPatchSurfaceDiagram01.jpg'/>
 15            <meta name='subjectcontent='NURBS Surface Example'/>
 16            <meta name='identifiercontent='https://www.web3d.org/x3d/content/examples/Basic/NURBS/NurbsPatchSurfaceExample.x3d'/>
 17            <meta name='generatorcontent='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
 18            <meta name='licensecontent='../license.html'/>
 19       </head>
<!--

<!--
Event Graph ROUTE Table shows event connections.
-->

<!-- to top Index for DEF nodes: CI, NC, NS, TS

Index for Viewpoint node: Viewpoint_1
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 20       <Scene>
 21            <WorldInfo title='NurbsPatchSurfaceExample.x3d'/>
 22            <Viewpoint description='animatedPlaneposition='3 2 40'/>
 23            <Transform rotation='1 0 0 -1.5'>
 24                 <Shape>
 25                      <NurbsPatchSurface DEF='NSsolid='falseuDimension='5uOrder='4uTessellation='20vDimension='5vOrder='4vTessellation='20containerField='geometry'>
 26 
                         <!-- ROUTE information for NC node:  [from CI.value_changed to set_point ] -->
                         <Coordinate DEF='NCcontainerField='controlPointpoint='-10 -10 0 -10 -5 0 -10 0 0 -10 5 0 -10 10 0 -5 -10 0 -5 -5 2.5 -5 0 5 -5 5 2.5 -5 10 0 0 -10 0 0 -5 2.5 0 0 5 0 5 2.5 0 10 0 5 -10 0 5 -5 2.5 5 0 15 5 5 2.5 5 10 0 10 -10 0 10 -5 0 10 0 0 10 5 0 10 10 0'/>
 27                      </NurbsPatchSurface>
 28                      <Appearance>
 29                           <Material diffuseColor='0 1 1'/>
 30                      </Appearance>
 31                 </Shape>
 32            </Transform>
 33 
          <!-- ROUTE information for CI node:  [from TS.fraction_changed to set_fraction ] [from value_changed to NC.set_point ] -->
          <CoordinateInterpolator DEF='CIkey='0 .5 1keyValue='-10 -10 0 -10 -5 0 -10 0 0 -10 5 0 -10 10 0 -5 -10 0 -5 -5 2.5 -5 0 5 -5 5 2.5 -5 10 0 0 -10 0 0 -5 2.5 0 0 5 0 5 2.5 0 10 0 5 -10 0 5 -5 2.5 5 0 15 5 5 2.5 5 10 0 10 -10 0 10 -5 0 10 0 0 10 5 0 10 10 0 -10 -10 0 -10 -5 0 -10 0 0 -10 5 0 -10 10 0 -5 -10 0 -5 -5 0 -5 0 0 -5 5 0 -5 10 0 0 -10 0 0 -5 0 0 0 0 0 5 0 0 10 0 5 -10 0 5 -5 0 5 0 0 5 5 0 5 10 0 10 -10 0 10 -5 0 10 0 0 10 5 0 10 10 0 -10 -10 0 -10 -5 0 -10 0 0 -10 5 0 -10 10 0 -5 -10 0 -5 -5 2.5 -5 0 5 -5 5 2.5 -5 10 0 0 -10 0 0 -5 2.5 0 0 5 0 5 2.5 0 10 0 5 -10 0 5 -5 2.5 5 0 15 5 5 2.5 5 10 0 10 -10 0 10 -5 0 10 0 0 10 5 0 10 10 0'/>
 34 
          <!-- ROUTE information for TS node:  [from fraction_changed to CI.set_fraction ] -->
          <TimeSensor DEF='TScycleInterval='6loop='true'/>
 35            < ROUTE  fromNode='TS' fromField='fraction_changed' toNode='CI' toField='set_fraction'/>
 36            < ROUTE  fromNode='CI' fromField='value_changed' toNode='NC' toField='set_point'/>
 37       </Scene>
 38  </X3D>
<!--

<!--
Event Graph ROUTE Table shows event connections.
-->

<!-- to top Index for DEF nodes: CI, NC, NS, TS

Index for Viewpoint node: Viewpoint_1
-->
X3D Tooltips element index: Appearance, component, Coordinate, CoordinateInterpolator, head, Material, meta, NurbsPatchSurface, ROUTE, Scene, Shape, TimeSensor, Transform, Viewpoint, WorldInfo, X3D, accessType and type, XML data types, field types

Event Graph ROUTE Table 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.

TS
TimeSensor
fraction_changed
SFFloat

ROUTE
event to
(1)
CI
CoordinateInterpolator
set_fraction
SFFloat
then
 
 
 
CI
CoordinateInterpolator
value_changed
MFVec3f

ROUTE
event to
(2)
NC
Coordinate
set_point
MFVec3f
Additional guidance on X3D animation can be found in the 10-Step Animation Design Process and Event Tracing hint sheets. Have fun with X3D! 😀

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<!-- Online at
https://www.web3d.org/x3d/content/examples/Basic/NURBS/NurbsPatchSurfaceExampleIndex.html -->
<!-- Version control at
https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/Basic/NURBS/NurbsPatchSurfaceExample.x3d -->

<!-- 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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