Seamarks/Distance Marks
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Seamark tagging
Distance marks
The tags defined on this page will render in various nautical charts.
This page defines tags for the attributes of distance marks on waterways.
| Type | S100 code | seamark:type | Definition | Rendering | Notes |
|---|---|---|---|---|---|
| Distance Mark | DISMAR | distance_mark | A distance mark indicates the distance measured from an origin and consists of either a solid visible structure or a distinct location without special installation. | 
|
Installed mark Not installed |
This page defines values for the "seamark:distance_mark:category" tags and other attributes applied to distance marks.
Categories
| Category (CATDIS) | seamark:distance_mark:category | Definition |
|---|---|---|
| Not physically installed | not_installed | A point at which a distance from an origin along a feature is given for information, but at which no specific marker exists. |
| Visible mark, pole | pole | A point at which a distance from an origin along a feature is given for information and which is marked by a pole. |
| Visible mark, board | board | A point at which a distance from an origin along a feature is given for information and which is marked by a board. |
| Visible mark, unknown shape | unknown_shape | A point at which a distance from an origin along a feature is given for information and which is physically marked, but the shape of the mark is not known or not given. |
Other attributes
| Attribute | seamark:distance_mark:<attribute> | Value type | Definition |
|---|---|---|---|
| Waterway distance (wtwdis) | distance | Decimal | The distance measured from an origin of a river or canal. |
| Height/length units (HUNITS) | units | Enumeration | This attribute encodes the units of measurement for heights and lengths. |
References
OSM seamark resources
- Seamark tag values(en)
- Seamark objects(en)
- Seamark attributes(en)
- Categories of objects(en)
- INT-1 cross reference(en)
- Inland waterway notice marks (CEVNI, Europe)(en)
- Inland waterway lateral marks (CEVNI, Europe)(en)
- Inland waterway notice marks (BNIWR, Brazil)(en)
- Inland waterway notice marks (PPWBC, Brazil/Paraguay)(en)
- Inland waterway notice marks (RIWR, Russia)(en)
JOSM presets & styles
External sources
- S-101 ENC/iENC registry (iho.int), the ENC Data Classification and Encoding Guide (DCEG) can be downloaded as zipped PDF, online access to symbols in Portrayal Register
- International nautical chart symbol legend (Chart INT-1, NOAA)
- Encoding Guide for Inland ENCs (openecdis.org, 2018), an international standard of the Inland ENC Harmonization Group is currently in development (IEHG Publication S-401, 2019)
- European Code for Inland Waterways (CEVNI), (UNECE, Fifth revised version 2015)
- European Code for Signs and Signals on Inland Waterways (SIGNI), (UNECE Resolution N0. 90, 2018)
- U.S. Aids to Navigation System – also details the Western Waters Marking System, Intracoastal Waterway system, and Uniform State Waterway Marking System