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Feature Length (FTL)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: ftl.ttl
- Name
featurelength- Datatype
- Real
- Definition
- The total length of a feature from end to end, as measured along its centerline and thus regardless of the path that the feature follows.
- Description
- The path may include vertical or high-slope sections that increase the distance travelled beyond that evident from an overhead perspective (for example: as seen in remote sensing imagery). The path may also alter dynamically (for exampl: due to changing loading conditions on a cable).
- Accepted
- 2013-10-18
- Defined by
- DFDD
- Physical quantity
- length
- Recommended unit
- Metre (m)
- Used by
Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.