X3D Model Documentation: TestPositionFollower.x3d

  1  <?xml version="1.0" encoding="UTF-8"?>
  2  <!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.2//EN" "https://www.web3d.org/specifications/x3d-3.2.dtd">
  3  <X3D profile='Immersive' version='3.2 xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation='https://www.web3d.org/specifications/x3d-3.2.xsd'>
  4       <head>
  5            <meta name='titlecontent='TestPositionFollower.x3d'/>
  6            <meta name='descriptioncontent='X3D Follower example'/>
  7            <meta name='creatorcontent='Herbert Stocker'/>
  8            <meta name='translatorcontent='Don Brutzman'/>
  9            <meta name='createdcontent='18 April 2006'/>
 10            <meta name='translatedcontent='2 December 2011'/>
 11            <meta name='modifiedcontent='20 October 2019'/>
 12            <meta name='referencecontent='originals/test_PosFollower.wrl'/>
 13            <meta name='referencecontent='Stocker_06_Followers.pdf'/>
 14            <meta name='referencecontent='http://www.hersto.com/Publications/Followers'/>
 15            <meta name='requirescontent='X3D version 3.2 or greater'/>
 16            <meta name='subjectcontent='X3D Follower Chaser Damper'/>
 17            <meta name=' warning content=' under development, instantReality works but BS Contact fails silently '/>
 18            <meta name='referencecontent='https://www.web3d.org/x3d/specifications/ISO-IEC-19775-1.2-X3D-AbstractSpecification/Part01/components/followers.html'/>
 19            <meta name='referencecontent='https://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html'/>
 20            <meta name='identifiercontent='https://www.web3d.org/x3d/content/examples/Basic/Followers/TestPositionFollower.x3d'/>
 21            <meta name='generatorcontent='Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html'/>
 22            <meta name='generatorcontent='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
 23            <meta name='licensecontent='../../license.html'/>
 24       </head>
<!--

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

<!-- to top Index for DEF nodes: AppLabels, AppObjectDampered, AppObjectFollowed, BtnChaser, BtnDamper, ColorDamperNode, FntLabels, GeomObject, GeomTrail, GrChaserTrail, GrDamperTrail, Mat, PlaneSensorPosition, PositionChaserNode, PositionDamperNode, ScrBtnMgr, ScrToggleButton, ScrTrailer, ShRect, SwChaserTrail, SwDamperTrail, SwObjectDampered, SwObjectFollowed, TmrTrail, TouchPosition, TrObjectDampered, TrObjectDirect, TrObjectFollowed

Index for Viewpoint node: Viewpoint_1

Index for ProtoDeclare definition: ToggleButton
-->
 25       <Scene>
 26            <WorldInfo title='TestPositionFollower.x3d'/>
 27            <Viewpoint description='TestPositionFollowerfieldOfView='0.716position='0.0 0.0 15.0'/>
 28            <NavigationInfo type='"NONE"'/>
 29            <Group>
 30 
               <!-- ROUTE information for PlaneSensorPosition node:  [from trackPoint_changed to TrObjectDirect.translation ] [from trackPoint_changed to PositionDamperNode.set_destination ] [from trackPoint_changed to PositionChaserNode.set_destination ] -->
               <PlaneSensor DEF='PlaneSensorPositiondescription='touch to activate'/>
 31                 <Transform translation='0.0 0.0 -0.05'>
 32                      <Shape>
 33                           <Appearance>
 34                                <Material ambientIntensity='0.0333diffuseColor='0.0 0.0 0.0emissiveColor='0.177 0.19 0.208shininess='0.54'/>
 35                           </Appearance>
 36                           <Box size='10.0 10.0 0.1'/>
 37                      </Shape>
 38                 </Transform>
 39            </Group>
 40 
          <!-- ROUTE information for TrObjectDirect node:  [from PlaneSensorPosition.trackPoint_changed to translation ] -->
          <Transform DEF='TrObjectDirectscale='0.8 0.8 0.8'>
 41                 <Shape>
 42                      <Appearance>
 43                           <Material ambientIntensity='0.0333diffuseColor='0.02 0.24 0.53emissiveColor='0.01 0.12 0.27shininess='0.54specularColor='0.32 0.4 0.4'/>
 44                      </Appearance>
 45 
                    <!-- Sphere GeomObject is a DEF node that has 2 USE nodes: USE_1, USE_2 -->
                    <Sphere DEF='GeomObjectradius='0.3'/>
 46                 </Shape>
 47            </Transform>
 48            < ROUTE  fromNode='PlaneSensorPosition' fromField='trackPoint_changed' toNode='TrObjectDirect' toField='translation'/>
 49 
          <!-- ROUTE information for SwObjectDampered node:  [from ScrBtnMgr.WcDamper to whichChoice ] -->
          <Switch DEF='SwObjectDamperedwhichChoice='0'>
 50 
               <!-- ROUTE information for TrObjectDampered node:  [from PositionDamperNode.value_changed to translation ] [from translation to ScrTrailer.DamperPos ] -->
               <Transform DEF='TrObjectDampered'>
 51                      <Shape>
 52 
                         <!-- Appearance AppObjectDampered is a DEF node that has 1 USE node: USE_1 -->
                         <Appearance DEF='AppObjectDampered'>
 53                                <Material ambientIntensity='0.0333diffuseColor='0.53 0.02 0.24emissiveColor='0.27 0.01 0.12shininess='0.54specularColor='0.4 0.32 0.4'/>
 54                           </Appearance>
 55                           <Sphere USE='GeomObject'/>
 56                      </Shape>
 57                 </Transform>
 58            </Switch>
 59 
          <!-- ROUTE information for PositionDamperNode node:  [from PlaneSensorPosition.trackPoint_changed to set_destination ] [from value_changed to TrObjectDampered.translation ] -->
          <PositionDamper DEF='PositionDamperNodecontainerField='children'/>
 60            < ROUTE  fromNode='PlaneSensorPosition' fromField='trackPoint_changed' toNode='PositionDamperNode' toField='set_destination'/>
 61            < ROUTE  fromNode='PositionDamperNode' fromField='value_changed' toNode='TrObjectDampered' toField='translation'/>
 62 
          <!-- ROUTE information for SwObjectFollowed node:  [from ScrBtnMgr.WcChaser to whichChoice ] -->
          <Switch DEF='SwObjectFollowedwhichChoice='0'>
 63 
               <!-- ROUTE information for TrObjectFollowed node:  [from PositionChaserNode.value_changed to translation ] [from translation to ScrTrailer.ChaserPos ] -->
               <Transform DEF='TrObjectFollowed'>
 64                      <Shape>
 65 
                         <!-- Appearance AppObjectFollowed is a DEF node that has 1 USE node: USE_1 -->
                         <Appearance DEF='AppObjectFollowed'>
 66                                <Material ambientIntensity='0.0333diffuseColor='0.24 0.53 0.02emissiveColor='0.12 0.27 0.01shininess='0.54specularColor='0.4 0.4 0.32'/>
 67                           </Appearance>
 68                           <Sphere USE='GeomObject'/>
 69                      </Shape>
 70                 </Transform>
 71            </Switch>
 72 
          <!-- ROUTE information for PositionChaserNode node:  [from PlaneSensorPosition.trackPoint_changed to set_destination ] [from value_changed to TrObjectFollowed.translation ] -->
          <PositionChaser DEF='PositionChaserNodeduration='1.5containerField='children'/>
 73            < ROUTE  fromNode='PlaneSensorPosition' fromField='trackPoint_changed' toNode='PositionChaserNode' toField='set_destination'/>
 74            < ROUTE  fromNode='PositionChaserNode' fromField='value_changed' toNode='TrObjectFollowed' toField='translation'/>
 75            <ProtoDeclare name='ToggleButton'>
 76                 <ProtoInterface>
 77                      <field name='HottColortype='SFColorvalue='0.8 0.8 0.3accessType='initializeOnly'/>
 78                      <field name='initiallyOntype='SFBoolvalue='falseaccessType='initializeOnly'/>
 79                      <field name='ColdColortype='SFColorvalue='0.2 0.2 0.0accessType='initializeOnly'/>
 80                      <field name='isOntype='SFBoolaccessType='outputOnly'/>
 81                 </ProtoInterface>
 82                 <ProtoBody>
 83                      <Transform scale='0.4 0.4 0.4'>
 84                           <TouchSensor DEF='TouchPositiondescription='move ball to demonstrate PositionChaser2D, PositionDamper2D'/>
 85                           <Shape DEF='ShRect'>
 86                                <Appearance>
 87                                     <Material DEF='MatambientIntensity='0.04diffuseColor='0.0 0.0 0.0shininess='0.11'/>
 88                                </Appearance>
 89                                <IndexedFaceSet coordIndex='0 1 2 3 -1'>
 90                                     <Coordinate point='-1 -1 0 1 -1 0 1 1 0 -1 1 0'/>
 91                                </IndexedFaceSet>
 92                           </Shape>
 93                      </Transform>
 94                      <Script DEF='ScrToggleButton'>
 95                           <field name='TS_Touchedtype='SFTimeaccessType='inputOnly'/>
 96                           <field name='Colortype='SFColoraccessType='outputOnly'/>
 97                           <field name='isOntype='SFBoolaccessType='outputOnly'/>
 98                           <field name='ColdColortype='SFColoraccessType='initializeOnly'/>
 99                           <field name='Tautype='SFFloataccessType='outputOnly'/>
100                           <field name='initiallyOntype='SFBoolaccessType='initializeOnly'/>
101                           <field name='DamperSTheretype='SFBoolaccessType='inputOnly'/>
102                           <field name='HottColortype='SFColoraccessType='initializeOnly'/>
103                           <IS>
104                                <connect nodeField='isOnprotoField='isOn'/>
105                                <connect nodeField='ColdColorprotoField='ColdColor'/>
106                                <connect nodeField='initiallyOnprotoField='initiallyOn'/>
107                                <connect nodeField='HottColorprotoField='HottColor'/>
108                           </IS>
  <![CDATA[
          
ecmascript:

function DamperSThere()
{
    activate(initiallyOn);
}

function activate(a)
{
    isOn= a;
    Tau=  a? .1 : .2;
    Color= a? HottColor : ColdColor;
}

function set_id(i)
{
    id= i;
}

function TS_Touched()
{
    activate(!isOn);
}

        
]]>
110                      </Script>
111                      <ColorDamper DEF='ColorDamperNodeorder='1containerField='children'/>
112                 </ProtoBody>
113            </ProtoDeclare>
114            <Transform translation='-5.7 4.0 0.0'>
115 
               <!-- ROUTE information for BtnDamper node:  [from isOn to ScrBtnMgr.BtnDamperIsOn ] -->
               <ProtoInstance name='ToggleButtonDEF='BtnDamper'>
116                      <fieldValue name='HottColorvalue='0.8 0.03 0.36'/>
117                      <fieldValue name='initiallyOnvalue='true'/>
118                      <fieldValue name='ColdColorvalue='0.2 0.0080 0.09'/>
119                 </ProtoInstance>
120            </Transform>
121            <Transform translation='-8.0 3.9 0.0'>
122                 <Shape>
123 
                    <!-- Appearance AppLabels is a DEF node that has 1 USE node: USE_1 -->
                    <Appearance DEF='AppLabels'>
124                           <Material diffuseColor='0.0 0.0 0.0emissiveColor='0.8 0.8 0.8'/>
125                      </Appearance>
126                      <Text string='"Damper"'>
127 
                         <!-- FontStyle FntLabels is a DEF node that has 1 USE node: USE_1 -->
                         <FontStyle DEF='FntLabelsfamily='"Arial" "SANS"size='0.5'/>
128                      </Text>
129                 </Shape>
130            </Transform>
131            <Transform translation='-5.7 2.8 0.0'>
132 
               <!-- ROUTE information for BtnChaser node:  [from isOn to ScrBtnMgr.BtnChaserIsOn ] -->
               <ProtoInstance name='ToggleButtonDEF='BtnChaser'>
133                      <fieldValue name='HottColorvalue='0.36 0.8 0.03'/>
134                      <fieldValue name='initiallyOnvalue='true'/>
135                      <fieldValue name='ColdColorvalue='0.09 0.2 0.0080'/>
136                 </ProtoInstance>
137            </Transform>
138            <Transform translation='-8.0 2.7 0.0'>
139                 <Shape>
140                      <Appearance USE='AppLabels'/>
141                      <Text string='"Chaser"'>
142                           <FontStyle USE='FntLabels'/>
143                      </Text>
144                 </Shape>
145            </Transform>
146 
147                 <field name='BtnChaserIsOntype='SFBoolaccessType='inputOnly'/>
148                 <field name='WcDampertype='SFInt32accessType='outputOnly'/>
149                 <field name='WcChasertype='SFInt32accessType='outputOnly'/>
150                 <field name='BtnDamperIsOntype='SFBoolaccessType='inputOnly'/>
  <![CDATA[
      
ecmascript:

function BtnDamperIsOn(on)
{
    WcDamper= on? 0:-1;
}
function BtnChaserIsOn(on)
{
    WcChaser= on? 0:-1;
}

    
]]>
152            </Script>
153            < ROUTE  fromNode='BtnDamper' fromField='isOn' toNode='ScrBtnMgr' toField='BtnDamperIsOn'/>
154            < ROUTE  fromNode='BtnChaser' fromField='isOn' toNode='ScrBtnMgr' toField='BtnChaserIsOn'/>
155            < ROUTE  fromNode='ScrBtnMgr' fromField='WcDamper' toNode='SwObjectDampered' toField='whichChoice'/>
156            < ROUTE  fromNode='ScrBtnMgr' fromField='WcChaser' toNode='SwObjectFollowed' toField='whichChoice'/>
157 
          <!-- ROUTE information for SwDamperTrail node:  [from ScrBtnMgr.WcDamper to whichChoice ] -->
          <Switch DEF='SwDamperTrailwhichChoice='0'>
158 
               <!-- Group GrDamperTrail is a DEF node that has 1 USE node: USE_1 -->
               <Group DEF='GrDamperTrail'/>
159            </Switch>
160 
          <!-- ROUTE information for SwChaserTrail node:  [from ScrBtnMgr.WcChaser to whichChoice ] -->
          <Switch DEF='SwChaserTrailwhichChoice='0'>
161 
               <!-- Group GrChaserTrail is a DEF node that has 1 USE node: USE_1 -->
               <Group DEF='GrChaserTrail'/>
162            </Switch>
163 
          <!-- ROUTE information for TmrTrail node:  [from cycleTime to ScrTrailer.Tick ] -->
          <TimeSensor DEF='TmrTrailcycleInterval='0.020000000000000004loop='true'/>
164 
          <!-- ROUTE information for ScrTrailer node:  [from TmrTrail.cycleTime to Tick ] [from TrObjectDampered.translation to DamperPos ] [from TrObjectFollowed.translation to ChaserPos ] -->
          <Script DEF='ScrTrailerdirectOutput='true'>
165                 <field name='cShapeDamperTrailPointtype='SFNodeaccessType='initializeOnly'>
166                      <Shape>
167                           <Appearance USE='AppObjectDampered'/>
168 
                         <!-- Sphere GeomTrail is a DEF node that has 1 USE node: USE_1 -->
                         <Sphere DEF='GeomTrailradius='0.1'/>
169                      </Shape>
170                 </field>
171                 <field name='lastDamperPostype='SFVec3fvalue='0.0 0.0 0.0accessType='initializeOnly'/>
172                 <field name='ChaserTrailstype='MFNodeaccessType='initializeOnly'>
173                      <!-- no initialization nodes since this is a local field to hold content -->
174                 </field>
175                 <field name='cShapeChaserTrailPointtype='SFNodeaccessType='initializeOnly'>
176                      <Shape>
177                           <Appearance USE='AppObjectFollowed'/>
178                           <Sphere USE='GeomTrail'/>
179                      </Shape>
180                 </field>
181                 <field name='DamperTrailstype='MFNodeaccessType='initializeOnly'>
182                      <!-- no initialization nodes since this is a local field to hold content -->
183                 </field>
184                 <field name='GrChaserTrailtype='SFNodeaccessType='initializeOnly'>
185                      <Group USE='GrChaserTrail'/>
186                 </field>
187                 <field name='ChaserPostype='SFVec3faccessType='inputOnly'/>
188                 <field name='cNumTrailPointstype='SFInt32value='35accessType='initializeOnly'/>
189                 <field name='lastChaserPostype='SFVec3fvalue='0.0 0.0 0.0accessType='initializeOnly'/>
190                 <field name='Ticktype='SFTimeaccessType='inputOnly'/>
191                 <field name='DamperPostype='SFVec3faccessType='inputOnly'/>
192                 <field name='GrDamperTrailtype='SFNodeaccessType='initializeOnly'>
193                      <Group USE='GrDamperTrail'/>
194                 </field>
  <![CDATA[
      
ecmascript:

function initialize()
{
    DamperTrails.length=
    ChaserTrails.length= cNumTrailPoints;

    for(var C= 0; C<cNumTrailPoints; C++ )
    {
        DamperTrails[C]= new SFNode('Transform{}');
        ChaserTrails[C]= new SFNode('Transform{}');

        DamperTrails[C].children[0]= cShapeDamperTrailPoint;
        ChaserTrails[C].children[0]= cShapeChaserTrailPoint;
    }

    GrDamperTrail.children= DamperTrails;
    GrChaserTrail.children= ChaserTrails;
}
function DamperPos(Pos)
{
    lastDamperPos= Pos;
}
function ChaserPos(Pos)
{
    lastChaserPos= Pos;
}
function Tick()
{
    for(var C= cNumTrailPoints - 1; C>0; C-- )
    {
        DamperTrails[C].translation= DamperTrails[  C - 1].translation;
        ChaserTrails[C].translation= ChaserTrails[C - 1].translation;
    }

    DamperTrails[0].translation= lastDamperPos;
    ChaserTrails[0].translation= lastChaserPos;
}

    
]]>
196            </Script>
197            < ROUTE  fromNode='TmrTrail' fromField='cycleTime' toNode='ScrTrailer' toField='Tick'/>
198            < ROUTE  fromNode='TrObjectDampered' fromField='translation' toNode='ScrTrailer' toField='DamperPos'/>
199            < ROUTE  fromNode='TrObjectFollowed' fromField='translation' toNode='ScrTrailer' toField='ChaserPos'/>
200            < ROUTE  fromNode='ScrBtnMgr' fromField='WcDamper' toNode='SwDamperTrail' toField='whichChoice'/>
201            < ROUTE  fromNode='ScrBtnMgr' fromField='WcChaser' toNode='SwChaserTrail' toField='whichChoice'/>
202       </Scene>
203  </X3D>
<!--

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

<!-- to top Index for DEF nodes: AppLabels, AppObjectDampered, AppObjectFollowed, BtnChaser, BtnDamper, ColorDamperNode, FntLabels, GeomObject, GeomTrail, GrChaserTrail, GrDamperTrail, Mat, PlaneSensorPosition, PositionChaserNode, PositionDamperNode, ScrBtnMgr, ScrToggleButton, ScrTrailer, ShRect, SwChaserTrail, SwDamperTrail, SwObjectDampered, SwObjectFollowed, TmrTrail, TouchPosition, TrObjectDampered, TrObjectDirect, TrObjectFollowed

Index for Viewpoint node: Viewpoint_1

Index for ProtoDeclare definition: ToggleButton
-->
X3D Tooltips element index: Appearance, Box, ColorDamper, connect, Coordinate, field, fieldValue, FontStyle, Group, head, IndexedFaceSet, IS, Material, meta, NavigationInfo, PlaneSensor, PositionChaser, PositionDamper, ProtoBody, ProtoDeclare, ProtoInstance, ProtoInterface, ROUTE, Scene, Script, Shape, Sphere, Switch, Text, TimeSensor, TouchSensor, Transform, Viewpoint, WorldInfo, X3D, accessType and type, XML data types, field types

Event Graph ROUTE Table entries with 14 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.

TouchPosition
TouchSensor
description='move ball to demonstrate PositionChaser2D, PositionDamper2D' 
User-interaction hint for this node.(TouchSensor description is providing a tooltip)  

TmrTrail
TimeSensor
cycleTime
SFTime

ROUTE
event to
(1)
ScrTrailer
Script
Tick
SFTime

      ScrTrailer
Script
No ROUTE connection found for output events from this node.
Contains SFNode fields with direct access to another node.
Contains MFNode fields with direct access to another node. 

BtnChaser
ProtoInstance
isOn
SFBool

ROUTE
event to
(1)
ScrBtnMgr
Script
BtnChaserIsOn
SFBool
then
 
 
 
ScrBtnMgr
Script
WcChaser
SFInt32

ROUTE
event to
(2)
SwObjectFollowed
Switch
whichChoice
SFInt32
  then
 
 
 
ScrBtnMgr
Script
WcChaser
SFInt32

ROUTE
event to
(2)
SwChaserTrail
Switch
whichChoice
SFInt32
  then
 
 
 
ScrBtnMgr
Script
WcDamper
SFInt32

ROUTE
event to
(2)
SwObjectDampered
Switch
whichChoice
SFInt32
  then
 
 
 
ScrBtnMgr
Script
WcDamper
SFInt32

ROUTE
event to
(2)
SwDamperTrail
Switch
whichChoice
SFInt32

BtnDamper
ProtoInstance
isOn
SFBool

ROUTE
event to
(1)
ScrBtnMgr
Script
BtnDamperIsOn
SFBool
then
 
 
 
ScrBtnMgr
Script
WcChaser
SFInt32

ROUTE
event to
(2)
SwObjectFollowed
Switch
whichChoice
SFInt32
  then
 
 
 
ScrBtnMgr
Script
WcChaser
SFInt32

ROUTE
event to
(2)
SwChaserTrail
Switch
whichChoice
SFInt32
  then
 
 
 
ScrBtnMgr
Script
WcDamper
SFInt32

ROUTE
event to
(2)
SwObjectDampered
Switch
whichChoice
SFInt32
  then
 
 
 
ScrBtnMgr
Script
WcDamper
SFInt32

ROUTE
event to
(2)
SwDamperTrail
Switch
whichChoice
SFInt32

PlaneSensorPosition
PlaneSensor
trackPoint_changed
SFVec3f

ROUTE
event to
(1)
TrObjectDirect
Transform
translation
SFVec3f
PlaneSensorPosition
PlaneSensor
trackPoint_changed
SFVec3f

ROUTE
event to
(1)
PositionDamperNode
PositionDamper
set_destination
SFVec3f
then
 
 
 
PositionDamperNode
PositionDamper
value_changed
SFVec3f

ROUTE
event to
(2)
TrObjectDampered
Transform
translation
SFVec3f
then
 
 
 
TrObjectDampered
Transform
translation
SFVec3f

ROUTE
event to
(3)
ScrTrailer
Script
DamperPos
SFVec3f
PlaneSensorPosition
PlaneSensor
trackPoint_changed
SFVec3f

ROUTE
event to
(1)
PositionChaserNode
PositionChaser
set_destination
SFVec3f
then
 
 
 
PositionChaserNode
PositionChaser
value_changed
SFVec3f

ROUTE
event to
(2)
TrObjectFollowed
Transform
translation
SFVec3f
then
 
 
 
TrObjectFollowed
Transform
translation
SFVec3f

ROUTE
event to
(3)
ScrTrailer
Script
ChaserPos
SFVec3f
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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    <ProtoInstance name='ProtoName'> <field name='fieldName'/> </ProtoInstance> -->

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