Titania X3D Editor

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Titania v4.3.1

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X3D Reference



PositionInterpolator generates a series of triplet values. Results can be ROUTEd to a <Transform> node's 'translation' attribute or another Vector3Float attribute

The PositionInterpolator node belongs to the Interpolation component and its container field is children. It is available since X3D version 3.0 or later.



SFNode [in, out] metadata NULL [X3DMetadataObject]

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.


Number of keys must match number of keyValues!

MFVec3f [in, out] keyValue [ ] (-∞,∞)

Output values for linear interpolation, each corresponding to time-fraction keys.


Number of keys must match number of keyValues!

SFVec3f [out] value_changed

Linearly interpolated output value determined by current key time and corresponding keyValue pair.



  • Typical input connection is ROUTE someTimeSensorDEF.fraction_changed TO thisInterpolatorDEF.set_fraction
  • Typical output connection is ROUTE thisInterpolatorDEF.value_changed TO someDestinationNodeDEF.set_someAttribute.



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