Class MetadataDouble

java.lang.Object
All Implemented Interfaces:
MetadataDouble, X3DMetadataObject, X3DNode

public class MetadataDouble extends X3DConcreteNode implements MetadataDouble
The metadata provided by this node is contained in the double-precision floating point numbers of the value field.

Warning: this is an abstract interface that cannot be instantiated as a concrete object. Java programmers typically only need to use concrete objects provided by the org.web3d.x3d.jsail classes. MetadataDouble node tooltip: [X3DNode,X3DMetadataObject] 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".
  • Hint: typically use containerField="value" if the parent node is MetadataSet.
  • Warning: default containerField="metadata" in X3D 3 changed to default containerField="value" in X3D 4.0, allowing construction of much terser MetadataSet vocabulary structures.
  • Hint: explicitly defining containerField for Metadata nodes is always allowed and also unambiguous across each version of X3D.
  • Hint: each of the Metadata nodes are allowed as top-level root nodes in a scene, if doing that be sure to explicitly define containerField='metadata'. https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-DIS/Part01/concepts.html#Rootnodes
  • Warning: Metadata nodes can only contain other Metadata nodes.
  • Hint: if present, an IS statement is the first child within any other node.
  • Hint: an IS statement precedes any sibling Metadata* node, which in turn precedes any other sibling nodes.
  • Hint: The choice of MetadataDouble versus MetadataFloat usually depends on the relevant tool utilizing the value, or else the relevant metadata reference defining the value.
  • Hint: comments are not readable when a model file is loaded for viewing, but WorldInfo and Metadata* nodes are persistent and inspectable at run time.
  • Hint: X3D for Web Authors, Chapter 15, Metadata Information https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter15-Metadata/Chapter15-MetadataInformation.html

Package hint: This org.web3d.x3d.jsail concrete class is used for implementing a standalone X3D object as a Plain Old Java Object (POJO). If you are writing Java code for use inside an X3D Script node, compile separate code using only the org.web3d.x3d.sai package instead.
See Also: