mirror
/
lighthousemap
kopia lustrzana https://github.com/geodienst/lighthousemap
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność

Update README.md

pull/3/head
zstadler 2019-07-23 09:38:48 +03:00 zatwierdzone przez GitHub
rodzic aa0fa63cba
commit ef92d4a3e8
Nie znaleziono w bazie danych klucza dla tego podpisu
ID klucza GPG: 4AEE18F83AFDEB23
1 zmienionych plików z 4 dodań i 4 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

8
README.md
Wyświetl plik

@ -1,9 +1,9 @@
# Beacon map
This map shows all the blinking beacons from [OpenStreetMap](http://www.openstreetmap.org/).
This map shows all the blinking beacons from [OpenStreetMap](https://www.openstreetmap.org/).
![Demo time](https://geodienst.github.io/lighthousemap/demo.gif)
More specifically, it asks the [Overpass API](https://www.overpass-api.de) for all elements with an `seamark:light:sequence` attribute, decodes these, and displays them as coloured circles on the map using [Leaflet](http://leafletjs.com). It also tries to take the `seamark:light:range` and `seamark:light:colour` into account.
More specifically, it asks the [Overpass API](https://www.overpass-api.de) for all elements with an `seamark:light:sequence` attribute, decodes these, and displays them as coloured circles on the map using [Leaflet](https://leafletjs.com). It also tries to take the `seamark:light:range` and `seamark:light:colour` into account.
## Overpass API
The current version uses an extracted dataset, but the code allows for directly querying the Overpass API. However, since a query like the one used here can take multiple minutes to complete it is not very useful do always do live queries.
@ -11,7 +11,7 @@ The current version uses an extracted dataset, but the code allows for directly
## Useful stuff
The `leaflet.indexedfeaturelayer.js` file contains an extension on Leaflet's GeoJSON layer that only add layers/features to the map that are (or are about to be) visible. It uses a spatial index to quickly query which features can be removed from the DOM, increasing performance.
`leaflet.light.js` contains my best guess on how a light sequence will look based on [these descriptions](http://wiki.openstreetmap.org/wiki/Seamarks/Light_Characters). However, it might be inaccurate, and it tries to do its best with the sometimes not entirely consistent data from OSM.
`leaflet.light.js` contains my best guess on how a light sequence will look based on [these descriptions](https://wiki.openstreetmap.org/wiki/Seamarks/Light_Characters). However, it might be inaccurate, and it tries to do its best with the sometimes not entirely consistent data from OSM.
## Credits
This map is made by the [Geodienst](http://www.geodienst.xyz) because it was a fun idea we wanted to try out. Feel free to fork this map and make your own visualisation of OSM data, or contribute improvements back to us.
This map is made by the [Geodienst](https://www.geodienst.xyz) because it was a fun idea we wanted to try out. Feel free to fork this map and make your own visualisation of OSM data, or contribute improvements back to us.