Key:seamark:fixme

seamark:fixme=* is used in combination with OpenSeaMap/Lights Data Model to describe errors which are known and should be corrected manually. Many lights of Openseamap are imported automatically (see OpenSeaMap/List_of_Lights_Import). During parsing the raw data several errors may occur. Some of them are detected automatically but cannot be corrected by software. The reason for those errors is either because the parser incorrectly detected something or because of syntax errors within the original data. The data source of all lights is the List of Lights published by the US NGA as PDF documents. In the following we will refer to this list just as the LoL.

Note that the original documents are republished once a year thereby containing corrections. Thus, errors may change or may be fixed. All tagged errors refer to a specific version of the original documents. The origin and date of issue is kept within the source=* tag.

Note that standard tag for such purpose is fixme=* - consider using it instead.

SeaMapEditor

In JOSM SeaMapEditor all unverified lights objects are marked with a yellow star. This requires that the SeaMapEditor be loaded:
JOSM Edit menu, select "Settings" icon "socket" (plugins), click plugin "SeaMapEditor" check-box, "OK" and restart JOSM.

How to download and use JOSM

please_fix_position

Lights-FIXME-Chart

In the Lights-FIXME-Chart you find all lights waiting for the right position...

Walk aroud the coast:

from z=6 you will see the light

Change to OpenSeaMap to look for lights:

in z=10..18 you will see the lights

in z=14..18 you will see "Check Position" (if there is)

Zoom in to z=18, select in the OpenSeaMap-menu (JOSM already started) "Edit by JOSM remote"

Select in JOSM in the menu "background" the "Bing" aero photos.
Move the light to the right position,
and delete the tag "please fix position".

The chart will be updated weekly.

man_made=lighthouse

Where there is already a mapped feature such as a man_made=lighthouse but without any OpenSeaMap tags, it must be merged with the imported lights object. In this case, the man_made=lighthouse can be taken to be in the correct position, and the imported seamark:type=light_major would have the correct seamark tagging:

1. Search the coast for a man_made=lighthouse.
2. Check with aerial photographs, whether the position is exact.
3. Look for the matching "yellow star" it will most likely be a seamark:type=light_major very often it may have a seamark:longname=* tag which helps to compare or the tower height in a seamark:landmark:height=* tag or the height of the light in seamark:light:height=* may help.
   If there are other yellow stars within 1-2km, examine them all to be certain that the correct match has been made.
4. be sure to have closed the sector window, if not close it.
5. Copy the yellow star with <Ctrl-c>.
6. Select the man_made=lighthouse and use <Shift-Ctrl-v> to add all the properties automatically.
7. When you have verified that the position accuracy is within 20m (from accurate aerial images, local knowledge or survey), then delete the tag seamark:fixme=please_fix_position in the completed light and this will change the icon from the yellow star to light_major or light_minor black star.
8. Erase the star no longer needed, and upload the result.

Value List

The errors sould be listed as a comma separated list.

Maintainers

If you like to care for an area:

Progress

Deleted lights