The PositionInterpolator2D node belongs to the Interpolation component and its container field is children. It is available since X3D version 3.0 or later.
Metadata are not part of the X3D world and not interpreted by the X3D browser, but they can be accessed via the ECMAScript interface.
SFFloat [in] set_fraction (-∞,∞)
Set_fraction selects input key for corresponding keyValue output.
MFFloat [in, out] key [ ] (-∞,∞)
Definition parameters for linear-interpolation function time intervals, in increasing order and corresponding to keyValues.
Hints
Number of keyValues must be an integer multiple of the number of keys! KeyValue/key integer multiple defines how many coordinates are sent in value_changed outputOnlys.
MFVec2f [in, out] keyValue [ ] (-∞,∞)
Output values for linear interpolation, each corresponding to time-fraction keys.
Hints
Number of keyValues must be an integer multiple of the number of keys! KeyValue/key integer multiple defines how many coordinates are sent in value_changed outputOnlys.
SFVec2f [out] value_changed
Linearly interpolated output value determined by current key time and corresponding keyValue pair.
Hint
KeyValue/key integer multiple defines how many coordinates are sent in value_changed outputOnlys.
Description
Hints
Typical input connection is ROUTE someTimeSensorDEF.fraction_changed TO thisInterpolatorDEF.set_fraction.
Typical output connection is ROUTE thisInterpolatorDEF.value_changed TO someDestinationNodeDEF.set_someAttribute.
Include <component name='Interpolation' level='3'/>
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