Ecosyste.ms: Awesome

An open API service indexing awesome lists of open source software.

Awesome Lists | Featured Topics | Projects

https://github.com/andeplane/fyrlysar


https://github.com/andeplane/fyrlysar

Last synced: 1 day ago
JSON representation

Awesome Lists containing this project

README 

        
# About FyrLysAR



Why isn't the light in the lighthouse on during the day? Well, with FyrLysAR,

it is. This app shows the lights from lighthouses as they look from where you

are. Position, color and blinking pattern all match the real thing. Even in

broad daylight.



FyrLysAR augments the image from the camera with blinking lights representing

lighthouses. Put a light at the center of the screen to show more information

about that lighthouse at the bottom of the screen.



## Support



See [SUPPORT.md](support.md).



## Where are the lighthouses?



The position, height, color and character (blinking pattern) of the

lighthouses in Norway are read from the

[Norwegian List of Lights](https://nfs.kystverket.no/fyrlister/Fyrliste_HeleLandet.pdf)

published by the [Norwegian Costal Administration](https://kystverket.no).

There are about 7600 lighted marine aids for navigation along the

coast of Norway.



## What colors are the lights?



The colors used in lighted marine navigagational aids are white, red, green,

blue, and yellow. We have used [color reccomendations](https://www.iala-aism.org/product/r0201/)

from the [International Association of Marine Aids to Navigation and Lighthouse Authorities](https://www.iala-aism.org)

The colors are converted from xy to rgb using [ColorMine](https://colormine.org/convert/rgb-to-yxy)



## What is the blinking like?



The character - blinking pattern - used in the app is according to the

reccomandations in

[Rythmic Characters of Lights on aids to Navigation](https://www.iala-aism.org/product/r0110/)

This might not match the actual blinking perfectly, but is should show a

blinking which is easily recognisable and matching the description in the

List of Lights.



## Where is my camera pointing?



The phone has accelerometers essentially showing which direction is down. There

is also a compass showing which way is North. Together with the GPS showing

where the phone is and the location of the lighthouses, we calculate which

lighthouse the phone is pointing its camera at.



## What about the islands blocking my view?



If there is an island blocking your view of a lighthouse, the app will not show

that light. How does the app know about the island? The height above sea

level of all of Norway is available from the

[Norwegian Mapping Authority](https://hoydedata.no/LaserInnsyn2/). Combined

with your position and that of the lighthouse, the app can calcualte if there

is an island in the way.