SegmentReference Structure Reference
- Last UpdatedJun 10, 2025
- 2 minute read
public struct SegmentReference : Hashable
Reference to a segment id with a travel direction.
Note: This is a beta release of this feature, so there could be a few bugs and unexpected behaviors. Related APIs may change for new releases without a deprecation process.
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Topology segment id representing a unique identifier within the HERE platform catalogs.
Declaration
Swift
public var segmentId: String
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Travel direction of the segment.
Declaration
Swift
public var travelDirection: TravelDirection
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The start offset is a non-negative number between 0 and 1, representing the start of the referenced range using a proportion of the length of the segment. 0 represents the start and 1 the end of the segment, relative to the indicated direction (or positive direction in case of undirected segments)
Declaration
Swift
public var offsetStart: Double
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The end offset is a non-negative number between 0 and 1, representing the end of the referenced range using a proportion of the length of the segment. 0 represents the start and 1 the end of the segment, relative to the indicated direction (or positive direction in case of undirected segments)
Declaration
Swift
public var offsetEnd: Double
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HERE tile partition id (Morton-encoding + level indicator) of the segment. As in HERE Map Content.
Declaration
Swift
public var tilePartitionId: UInt32
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Local ID of the segment inside the OCM tile.
Declaration
Swift
public var localId: UInt32?
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Creates a new instance.
Declaration
Swift
public init(segmentId: String = "", travelDirection: TravelDirection = TravelDirection.bidirectional, offsetStart: Double = 0.0, offsetEnd: Double = 1.0, tilePartitionId: UInt32 = 0, localId: UInt32? = 0)
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Returns an instance of this struct from a string if it’s well-formatted,
nil
otherwise.Declaration
Swift
public static func fromString(segmentRef: String) -> SegmentReference?
Parameters
segmentRef
The string to parse
Return Value
An instance of
SegmentReference
from a string if it’s well-formatted,nil
otherwise.