Titania X3D Editor

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Titania v4.6.10

Bring Colours to Your Life.

X3D Reference



MetadataDouble contains a typed list of values providing metadata information about its parent node. Further information about this specific Metadata node may be provided by a single child Metadata node with containerField="metadata".

The MetadataDouble node belongs to the Core component and its container field is metadata. It is available since X3D version 3.0 or later.


* Derived from multiple interfaces.


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.

SFString [in, out] name ""

Depending on the metadata vocabulary, the attribute name is usually required for metadata nodes.


Name is not included if this instance is a USE node.

SFString [in, out] reference ""

Reference to the metadata standard or definition defining this particular metadata value.

MFDouble [in, out] value [ ]

The value attribute is a strictly typed data array providing relevant metadata information.


Many XML tools substitute XML character references automatically if needed (such as & for & ampersand, or " for " quotation mark).



  • Use containerField="value" if the parent node is MetadataSet.
  • If a metadata node is needed as a top-level root node for the scene, first insert a parent WorldInfo (or WorldInfo/MetadataSet) to contain it.
  • An IS statement precedes any sibling Metadata node, which in turn precedes any other sibling nodes.
  • The choice of MetadataDouble versus MetadataFloat usually depends on the relevant tool utilizing the value, or else the relevant metadata reference defining the value.

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