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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.0//EN" "https://www.web3d.org/specifications/x3d-3.0.dtd">
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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=' ArbitraryAxisCylinderSensorPrototype.x3d '/> |
6 | <meta name='description' content="Modified CylinderSensor oriented about an arbitrary axis, relative to peer/child geometry that remains oriented to its original axis. Originally authored by Don Brutzman's MV4204 class, with modifications by Maj James Breitinger USMC to include min/max angles of rotation and object center. Motivation: Modify example shown by Chapter 9 Figure 7 to build a PROTO for a CylinderSensor oriented about an arbitrary axis."/> |
7 | <meta name='info' content='ArbitraryAxisCylinderSensor operates on its children, NOT on its peers. This variation is necessary in order to accomplish the desired Transform rotation to a new orientation axis.'/> |
8 | <meta name='creator' content='Don Brutzman'/> |
9 | <meta name='created' content='1 October 1998'/> |
10 | <meta name='modified' content='28 November 2019'/> |
11 | <meta name='reference' content=' ArbitraryAxisCylinderSensorExamples.x3d '/> |
12 | <meta name='reference' content='ArbitraryAxisCylinderSensorPrototypeOriginal.wrl'/> |
13 | <meta name='identifier' content=' https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/ArbitraryAxisCylinderSensorPrototype.x3d '/> |
14 | <meta name='reference' content='The VRML 2.0 Sourcebook (Copyright 1997 By Andrea L. Ames, David R. Nadeau, and John L. Moreland)'/> |
15 | <meta name='generator' content='X3D-Edit 3.2, https://www.web3d.org/x3d/tools/X3D-Edit'/> |
16 | <meta name='license' content='../../license.html'/> |
17 | </head> |
18 | <Scene> |
19 | <WorldInfo title='ArbitraryAxisCylinderSensorPrototype.x3d'/> |
20 | <ProtoDeclare name='ArbitraryAxisCylinderSensor' appinfo='Modified CylinderSensor with children nodes oriented about an arbitrary axis. Warning: ArbitraryAxisCylinderSensor affects children, not peers.'> |
21 | <ProtoInterface> |
22 | <!-- All default fields and events of a regular CylinderSensor are exposed without modification. --> |
23 | <!-- Transparent viewing-assist geometry shows orientation and cylindrical mapping of mouse movements by sensor. Since viewCylinderSensorShape connects to a Script, it is a initialize-time field instead of a run-time exposedField. --> |
24 |
<field name='shiftRotationAxis' type='SFRotation' value='1 0 0 0' accessType='initializeOnly'
appinfo='shifted axis of rotation from local vertical, default 1 0 0 0'/> |
25 |
<field name='center' type='SFVec3f' value='0 0 0' accessType='initializeOnly'
appinfo='local center for axis of rotation, default 0 0 0'/> |
26 |
<field name='showCylinderSensorShape' type='SFBool' value='true' accessType='initializeOnly'
appinfo='whether to show visualization shape to show orientation and cylindrical mapping of mouse movements by sensor, default true'/> |
27 |
<field name='scaleCylinderSensorShape' type='SFVec3f' value='1 1 1' accessType='inputOutput'
appinfo='scale for visualization shape, default 1 1 1'/> |
28 |
<field name='colorCylinderSensorShape' type='SFColor' value='0.9 0.9 0.4' accessType='inputOutput'
appinfo='color for visualization shape, default 0.9 0.9 0.4'/> |
29 |
<field name='transparencyCylinderSensorShape' type='SFFloat' value='0.8' accessType='inputOutput'
appinfo='transparency for visualization shape'/> |
30 |
<field name='children' type='MFNode' accessType='inputOutput'
appinfo='children nodes affected by ArbitraryAxisCylinderSensor'> |
31 | <!-- initialization nodes (if any) go here --> |
32 | </field> |
33 |
<field name='autoOffset' type='SFBool' value='true' accessType='inputOutput'
appinfo='determines whether previous offset values are remembered/accumulated, default true'/> |
34 |
<field name='description' type='SFString' value='Select and drag to rotate ArbitraryAxisCylinderSensor' accessType='inputOutput'
appinfo='Text tooltip displayed for user interaction'/> |
35 |
<field name='diskAngle' type='SFFloat' value='0.262' accessType='inputOutput'
appinfo='diskAngle 0 forces disk-like behavior, diskAngle 1.57 (90 degrees) forces cylinder-like behavior, default 0.262, range [0,pi/2]'/> |
36 |
<field name='enabled' type='SFBool' value='true' accessType='inputOutput'
appinfo='enables/disables node operation, default true'/> |
37 |
<field name='minAngle' type='SFFloat' value='0' accessType='inputOutput'
appinfo='clamps rotation_changed events, default 0, range [-2pi,2pi]'/> |
38 |
<field name='maxAngle' type='SFFloat' value='-1' accessType='inputOutput'
appinfo='clamps rotation_changed events, default -1, range [-2pi,2pi]'/> |
39 |
<field name='offset' type='SFFloat' value='0' accessType='initializeOnly'
appinfo='sends event and remembers last value sensed, default 0, range (-infinity,infinity)'/> |
40 |
<field name='isActive' type='SFBool' accessType='outputOnly'
appinfo='output event isActive=true when primary mouse button is pressed, output event isActive=false when released.'/> |
41 |
<field name='rotation_changed' type='SFRotation' accessType='outputOnly'
appinfo='rotation_changed events equal sum of relative bearing changes plus offset value about Y-axis in local coordinate system'/> |
42 |
<field name='trackPoint_changed' type='SFVec3f' accessType='outputOnly'
appinfo="trackPoint_changed events give intersection point of bearing with sensor's virtual geometry"/> |
43 | </ProtoInterface> |
44 | <ProtoBody> |
45 | <!-- Prototype body follows. First rotate local frame about center to axis of interest, then perform the rotation about the desired center. --> |
46 | <Transform DEF='ArbitraryAxisTransform'> |
47 | <IS> |
48 | <connect nodeField='rotation' protoField='shiftRotationAxis'/> |
49 | <connect nodeField='center' protoField='center'/> |
50 | </IS> |
51 |
<!-- ROUTE information for RotatedCylinderSensor node:
[from rotation_changed to CylinderSensorRotationTransform.set_rotation
]
-->
<CylinderSensor DEF='RotatedCylinderSensor'> |
52 | <IS> |
53 | <connect nodeField='autoOffset' protoField='autoOffset'/> |
54 | <connect nodeField='description' protoField='description'/> |
55 | <connect nodeField='diskAngle' protoField='diskAngle'/> |
56 | <connect nodeField='enabled' protoField='enabled'/> |
57 | <connect nodeField='minAngle' protoField='minAngle'/> |
58 | <connect nodeField='maxAngle' protoField='maxAngle'/> |
59 | <connect nodeField='offset' protoField='offset'/> |
60 | <connect nodeField='isActive' protoField='isActive'/> |
61 | <connect nodeField='rotation_changed' protoField='rotation_changed'/> |
62 | <connect nodeField='trackPoint_changed' protoField='trackPoint_changed'/> |
63 | </IS> |
64 | </CylinderSensor> |
65 | <!-- CylinderSensorRotationTransform rotation value is overridden by RotatedCylinderSensor, so leave it alone! --> |
66 |
<!-- Transform
CylinderSensorRotationTransform is a DEF node that has 1 USE node: USE_1
<!-- ROUTE information for CylinderSensorRotationTransform node: [from RotatedCylinderSensor.rotation_changed to set_rotation ] --> <Transform DEF='CylinderSensorRotationTransform'> |
67 | <!-- ROUTEd rotation to RestorationTransform negates (and offsets) arbitrary-axis rotation in RestorationTransform, so children geometry is returned to original orientation. --> |
68 | <!-- Perform the rotation about the same center. --> |
69 |
<!-- ROUTE information for RestorationTransform node:
[from NegationScript.rotationRestore to rotation
]
-->
<Transform DEF='RestorationTransform'> |
70 | <IS> |
71 | <connect nodeField='center' protoField='center'/> |
72 | <connect nodeField='children' protoField='children'/> |
73 | </IS> |
74 | </Transform> |
75 | <!-- Prototype children field finally appears above... --> |
76 |
<!-- ROUTE information for ScaleSensorSwitch node:
[from HideSensorShapeScript.choiceScaleSensor to whichChoice
]
-->
<Switch DEF='ScaleSensorSwitch' whichChoice='0'> |
77 | <Transform DEF='ScaleSensorShape'> |
78 | <IS> |
79 | <connect nodeField='scale' protoField='scaleCylinderSensorShape'/> |
80 | </IS> |
81 | <Shape> |
82 | <Cylinder height='2.5' radius='0.1'/> |
83 |
<!-- Appearance
SensorShapeAppearance is a DEF node that has 1 USE node: USE_1 -->
<Appearance DEF='SensorShapeAppearance'> |
84 | <Material DEF='SensorShapeMaterial'> |
85 | <IS> |
86 | <connect nodeField='diffuseColor' protoField='colorCylinderSensorShape'/> |
87 | <connect nodeField='transparency' protoField='transparencyCylinderSensorShape'/> |
88 | </IS> |
89 | </Material> |
90 | </Appearance> |
91 | </Shape> |
92 | <Shape> |
93 | <Cylinder height='0.2' radius='1.5'/> |
94 | <Appearance USE='SensorShapeAppearance'/> |
95 | </Shape> |
96 | </Transform> |
97 | </Switch> |
98 | </Transform> |
99 |
<!-- ROUTE information for NegationScript node:
[from rotationRestore to RestorationTransform.rotation
]
-->
<Script DEF='NegationScript' directOutput='true'> |
100 | <field name='shiftRotationAxis' type='SFRotation' accessType='initializeOnly'/> |
101 | <field name='offset' type='SFFloat' accessType='initializeOnly'/> |
102 | <field name='rotationRestore' type='SFRotation' accessType='outputOnly'/> |
103 | <field name='CylinderSensorRotationTransform' type='SFNode' accessType='initializeOnly'> |
104 | <Transform USE='CylinderSensorRotationTransform'/> |
105 | </field> |
106 | <!-- local variables --> |
107 | <field name='rotationOffset' type='SFRotation' value='0 1 0 0' accessType='initializeOnly'/> |
108 | <field name='rotationIntermediate' type='SFRotation' value='0 1 0 0' accessType='initializeOnly'/> |
109 | <IS> |
110 | <connect nodeField='offset' protoField='offset'/> |
111 | <connect nodeField='shiftRotationAxis' protoField='shiftRotationAxis'/> |
112 | </IS> |
<![CDATA[
ecmascript: function initialize () { rotationOffset = new SFRotation (0, 1, 0, offset); // establish initial angle CylinderSensorRotationTransform.rotation = CylinderSensorRotationTransform.rotation.multiply (rotationOffset); rotationIntermediate = shiftRotationAxis; rotationIntermediate = rotationIntermediate.inverse (); rotationRestore = rotationIntermediate; Browser.println (' rotationOffset=' + rotationOffset.toString()); Browser.println ('shiftRotationAxis=' + shiftRotationAxis.toString()); Browser.println (' rotationRestore=' + rotationRestore.toString()); }
]]>
|
|
114 | </Script> |
115 |
<!-- ROUTE information for HideSensorShapeScript node:
[from choiceScaleSensor to ScaleSensorSwitch.whichChoice
]
-->
<Script DEF='HideSensorShapeScript'> |
116 | <field name='showCylinderSensorShape' type='SFBool' accessType='initializeOnly'/> |
117 | <field name='choiceScaleSensor' type='SFInt32' accessType='outputOnly'/> |
118 | <IS> |
119 | <connect nodeField='showCylinderSensorShape' protoField='showCylinderSensorShape'/> |
120 | </IS> |
<![CDATA[
ecmascript: function initialize () { if (showCylinderSensorShape == true) choiceScaleSensor = 0; else choiceScaleSensor = -1; }
]]>
|
|
122 | </Script> |
123 | </Transform> |
124 | < ROUTE fromNode='RotatedCylinderSensor' fromField='rotation_changed' toNode='CylinderSensorRotationTransform' toField='set_rotation'/> |
125 | < ROUTE fromNode='NegationScript' fromField='rotationRestore' toNode='RestorationTransform' toField='rotation'/> |
126 | < ROUTE fromNode='HideSensorShapeScript' fromField='choiceScaleSensor' toNode='ScaleSensorSwitch' toField='whichChoice'/> |
127 | <!-- Add any ROUTEs here, going from Script to other nodes in ProtoBody --> |
128 | </ProtoBody> |
129 | </ProtoDeclare> |
130 | <!-- Example use of this prototype is in ArbitraryAxisCylinderSensorExample.x3d, .wrl --> |
131 | <Viewpoint description='click message to view example' position='0 0 8'/> |
132 | <!-- Redirection text in case a user examines this PROTO file via a 3D browser: --> |
133 | <Anchor description='Touch text for example' url=' "ArbitraryAxisCylinderSensorExamples.x3d" "https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/ArbitraryAxisCylinderSensorExamples.x3d" "ArbitraryAxisCylinderSensorExamples.wrl" "https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/ArbitraryAxisCylinderSensorExamples.wrl" '> |
134 | <Shape> |
135 | <Appearance> |
136 | <Material diffuseColor='0 1 1' emissiveColor='0 1 1'/> |
137 | </Appearance> |
138 | <Text string='"ArbitraryAxisCylinderSensorPrototype" "is a Prototype (PROTO) definition file." "" "To see an example scene using this new node" "click this text and view" "ArbitraryAxisCylinderSensorExample"'> |
139 | <FontStyle justify='"MIDDLE" "MIDDLE"' size='0.5'/> |
140 | </Text> |
141 | </Shape> |
142 | <Shape DEF='SelectionAssist'> |
143 | <Box size='9 4 .001'/> |
144 | <Appearance> |
145 | <Material transparency='0.9'/> |
146 | </Appearance> |
147 | </Shape> |
148 | </Anchor> |
149 | </Scene> |
150 | </X3D> |
Event Graph ROUTE Table entries with 3 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.
HideSensorShapeScript
Script choiceScaleSensor SFInt32 |
ScaleSensorSwitch
Switch whichChoice SFInt32 |
NegationScript
Script rotationRestore SFRotation |
RestorationTransform
Transform rotation SFRotation |
RotatedCylinderSensor
CylinderSensor rotation_changed SFRotation |
CylinderSensorRotationTransform
Transform set_rotation SFRotation |
line 133
Anchor |
description='Touch text for example' User-interaction hint for this node. |
<!--
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)
<ProtoDeclare name='ProtoName'>
<field
name='fieldName'/> </ProtoDeclare>
-->
<!--
For additional help information about X3D scenes, please see X3D Tooltips, X3D Resources, and X3D Scene Authoring Hints.
-->