IS:trackRef line

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Scheme description / Schemenbeschreibung / Description du schéma

Position of trackRef in the XML-Tree / Position von trackRef im XML-Baum / position de trackRef dans l’aborescence XML

  • Parent: <line>
  • Children: None

Multiplicity / Anzahl / Multiplicité


Semantics / Bedeutung / Sémantique

The element <line> allows for grouping of tracks which are referenced using <trackRef>.

Attributes of trackRef / Attribute von trackRef / Attributs de trackRef

  • sequence: This allows for sorting the referenced tracks.
    This "counter" defines the order of the referenced tracks from the trains point of view. It should run without any wholes up from the first to the last track in one direction. The same constraint should be deployed for the tracks in the opposite direction.

  • ref: This refers to the id attribute of the associated track element.
  • xs:anyAttribute: This provides an extension point for non-railML attributes in a foreign namespace. How to use it?

Syntactic Constraints / Syntaktische Beschränkungen / Contraintes syntactiques

  • sequence xs:positiveInteger, optional
    If no sequence is provided, the sequence of the referenced tracks shall be assumed as "arbitrary" or "undefined". In no case the sequence of the XML elements in the XML file shall matter.
    Either all or none of the <trackRef> elements in the current <line> element shall carry sequence attributes.
    The referenced track with the lowest sequence value is interpreted as the first element of the current <line>.
    Each sequence value shall only be used once within the current <line>.

Best practice & Examples / Empfohlene Anwendung & Beispiele / Bonnes pratiques & exemples

Not yet described. / Noch nicht beschrieben. / Pas encore décrit.

Notes / Anmerkungen / Notes

Not yet described. / Noch nicht beschrieben. / Pas encore décrit.

Open issues / Offene Punkte/Pendenzen / Questions ouvertes

Not yet described. / Noch nicht beschrieben. / Pas encore décrit.