1 |
<?xml version="1.0" encoding="UTF-8"?>
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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='PositionInterpolator2dPrototype.x3d'/> |
6 | <meta name='description' content='PositionInterpolator2D prototype declaration to pairwise interpolate across an array of Vector2Float/SFVec2f values to produce a single Vector2Float value - click text to see example.'/> |
7 | <meta name='creator' content='Don Brutzman, Jeff Weekley, Jane Wu'/> |
8 | <meta name='created' content='16 October 2001'/> |
9 | <meta name='modified' content='20 January 2020'/> |
10 | <meta name='reference' content='https://www.web3d.org/technicalinfo/specifications/vrml97/part1/concepts.html#4.6.8'/> |
11 | <meta name='reference' content='https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#CoordinateInterpolator'/> |
12 | <meta name='subject' content='PositionInterpolator2D'/> |
13 | <meta name='identifier' content='https://www.web3d.org/x3d/content/examples/Basic/development/PositionInterpolator2dPrototype.x3d'/> |
14 | <meta name='generator' content='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/> |
15 | <meta name='license' content='../license.html'/> |
16 | </head> |
17 | <Scene> |
18 | <WorldInfo title='PositionInterpolator2dPrototype.x3d'/> |
19 | <ProtoDeclare name='PositionInterpolator2D' appinfo='Provide interpolation capability for Vector2Float/SFVec2f values' documentation='https://www.web3d.org/technicalinfo/specifications/vrml97/part1/concepts.html#4.6.8'> |
20 | <ProtoInterface> |
21 |
<field name='set_fraction' type='SFFloat' accessType='inputOnly'
appinfo='The set_fraction eventIn receives an SFFloat event and causes the interpolator function to evaluate resulting in a value_changed eventOut with the same timestamp as the set_fraction event.'> |
22 | <!-- Regular interpolator-style input --> |
23 | </field> |
24 | <field name='set_key' type='MFFloat' accessType='inputOnly'/> |
25 |
<field name='key' type='MFFloat' accessType='inputOutput'
appinfo='keyValue holds the array of Vector2FloatArrays that match each animation key.'> |
26 | <!-- initial value is [] null array --> |
27 | </field> |
28 |
<field name='key_changed' type='MFFloat' accessType='outputOnly'
appinfo='Array sequentially increasing typically [0..1]. Must have the same number of keys as keyValues.'/> |
29 |
<field name='set_keyValue' type='MFVec2f' accessType='inputOnly'
appinfo='Array of integer values. Must have the same number of keys as keyValues.'/> |
30 |
<field name='keyValue' type='MFVec2f' accessType='inputOutput'
appinfo='keyValue holds the array of Vector2Float values that match each animation key.'> |
31 | <!-- initial value is [] null array --> |
32 | </field> |
33 |
<field name='keyValue_changed' type='MFVec2f' accessType='outputOnly'
appinfo='Array of integer values. Must have the same number of keys as keyValues.'/> |
34 |
<field name='value_changed' type='SFVec2f' accessType='outputOnly'
appinfo='The interpolator function averages between respective keyValue Vector2Floats resulting in a Vector2Float value_changed eventOut with the same timestamp as the set_fraction event.'> |
35 | <!-- Regular interpolator-style output --> |
36 | </field> |
37 | </ProtoInterface> |
38 | <ProtoBody> |
39 | <Group> |
40 | <Switch whichChoice='-1'> |
41 | |
42 | <IS> |
43 | <connect nodeField='key' protoField='key'/> |
44 | </IS> |
45 | </ScalarInterpolator> |
46 | <Shape> |
47 | <IndexedFaceSet> |
48 |
<!-- TextureCoordinate
KeyValueHolder is a DEF node that has 1 USE node: USE_1 -->
<TextureCoordinate DEF='KeyValueHolder'> |
49 | <IS> |
50 | <connect nodeField='point' protoField='keyValue'/> |
51 | </IS> |
52 | </TextureCoordinate> |
53 | </IndexedFaceSet> |
54 | <Appearance DEF='SilenceWarnings'/> |
55 | </Shape> |
56 | </Switch> |
57 | <Script DEF='InterpolationScript' directOutput='true'> |
58 | <!-- Regular interpolator-style input --> |
59 | <field name='set_fraction' type='SFFloat' accessType='inputOnly'/> |
60 |
<field name='fraction' type='SFFloat' value='0' accessType='initializeOnly'
appinfo='local variable'/> |
61 | <field name='set_key' type='MFFloat' accessType='inputOnly'/> |
62 | <field name='keyHolderNode' type='SFNode' accessType='initializeOnly'> |
63 | <ScalarInterpolator USE='KeyHolder'/> |
64 | </field> |
65 | <field name='key_changed' type='MFFloat' accessType='outputOnly'/> |
66 | <field name='set_keyValue' type='MFVec2f' accessType='inputOnly'/> |
67 | <field name='keyValueHolderNode' type='SFNode' accessType='initializeOnly'> |
68 | <TextureCoordinate USE='KeyValueHolder'/> |
69 | </field> |
70 | <field name='keyValue_changed' type='MFVec2f' accessType='outputOnly'/> |
71 | <!-- Regular interpolator-style output --> |
72 | <field name='value_changed' type='SFVec2f' accessType='outputOnly'/> |
73 | <IS> |
74 | <connect nodeField='set_fraction' protoField='set_fraction'/> |
75 | <connect nodeField='set_key' protoField='set_key'/> |
76 | <connect nodeField='key_changed' protoField='key_changed'/> |
77 | <connect nodeField='set_keyValue' protoField='set_keyValue'/> |
78 | <connect nodeField='keyValue_changed' protoField='keyValue_changed'/> |
79 | <connect nodeField='value_changed' protoField='value_changed'/> |
80 | </IS> |
82 | </Script> |
83 | </Group> |
84 | </ProtoBody> |
85 | </ProtoDeclare> |
86 | <!-- ====================================== --> |
87 | <!-- Example use --> |
88 | <Anchor description='PositionInterpolator2D Example' url=' "PositionInterpolator2dExample.x3d" "https://www.web3d.org/x3d/content/examples/Basic/development/PositionInterpolator2dExample.x3d" "PositionInterpolator2dExample.wrl" "https://www.web3d.org/x3d/content/examples/Basic/development/PositionInterpolator2dExample.wrl" '> |
89 | <Shape> |
90 | <Text string='"PositionInterpolator2dPrototype" "defines a prototype" "" "Click text to see" "PositionInterpolator2dExample" " scene"'> |
91 | <FontStyle justify='"MIDDLE" "MIDDLE"' size='0.7'/> |
92 | </Text> |
93 | <Appearance> |
94 | <Material diffuseColor='1 1 0.2'/> |
95 | </Appearance> |
96 | </Shape> |
97 | </Anchor> |
98 | </Scene> |
99 | </X3D> |
Event Graph ROUTE Table with 0 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.
InterpolationScript
Script |
No ROUTE connection found for output events from this node. Contains SFNode fields with direct access to another node. |
Anchor |
description='PositionInterpolator2D Example' User-interaction hint for this node. |
<!--
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)
<ProtoDeclare
name='ProtoName'>
<field
name='fieldName'/> </ProtoDeclare>
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