Location in Skyview displayed incorrect

[glowfishDE]

Hi,

in the Skyview (http....:8080) my feeders location and center of the map is shown a few hundred meters offset.

I have the following docker export variables that should give the correct location:

HTML_SITE_LON 11.123456
HTML_SITE_LAT 48.123456

I have set my coordinates also in flightaware and fr24 and restarted everything multiple times. When i change the export variables, the map and center spot are moving accordingly. But it seems its never displayed at the exact spot i set.

The location is displayed slightly offset (~ 700 meters away from my house, on a totally different building).

Are the export variables cut to less than 6 digits after the dot ?

[Thom-x]

You can try to view what's in the javascript config file:

[glowfishDE]

Oh yes.. I forgot to mention. I have it set there too. Just double checked my set of coordinates. They point to the correct spot but the skyview shows it offset :(

[Thom-x]

You don't need to change it manually in config.json this is the direct view from chrome.

At startup coordinates are added into the file automatically, don't forget double quote:

-e "HTML_SITE_LAT=11.123456"
-e "HTML_SITE_LAT=48.123456"

[glowfishDE]

I have it also in the export variables .. Since i use a synology NAS for the docker container it looks like this:

It seems to obey these settings as my map and center spot is moving when i change the variables. However it´s never displayed at the exact right spot :(

[Thom-x]

Are the coordinates correct when you show the dev console on your browser like in my screenshot ?

[glowfishDE]

I checked in chromes developer console - yes its the correct coordinates in config.json ..also in the env variables its set the same. i just checked the dockerfile.

really strange - if you want i can provide you with a teamviewer session.

[Thom-x]

In this case it's not an issue with the docker image.
It's a bug in piaware frontend I think.

[glowfishDE]

Who is maintaining the frontend of piaware ? Would that be https://github.com/flightaware/piaware ?

[Thom-x]

Yes I think.

[glowfishDE]

Ok - i´ve opened an issue at the piaware github page.
https://github.com/flightaware/piaware/issues/63

Closing this issue to avoid redundancy. Thanks for the support :)

[glowfishDE]

It seems to be that dump1090 is rounding the GPS coordinate digits for privacy reasons.

You can set it manually from:

JSON_OPTIONS="--json-location-accuracy 1" (estimated)
to
JSON_OPTIONS="--json-location-accuracy 2" (exact position)

@Thom-x I just dont know yet how your docker setup is working. Do you have any idea where we can configure that variable? maybe as a docker env variable ?

[Thom-x]

We start dump1090 here, we could add --json-location-accuracy 2 at the end.

[glowfishDE]

Could we make it a docker env flag / variable so users can set it without modifying files inside the docker container and break their upgrade path ? That would be pretty cool :)

[Thom-x]

It's possible, we can do something like HTML_SITE_LAT env var.

[glowfishDE]

It's possible, we can do something like HTML_SITE_LAT env var.

Cool.. i suggest HTML_SITE_LOCATION_ACCURACY <1|2|3>

[Thom-x]

I created on more generic one, see #26

[Thom-x]

You can try with image version thomx/fr24feed-piaware:dump1090-additional-args

[glowfishDE]

I created on more generic one, see #26

Ah very cool. When will this change go into the "latest" image ? Or is there a way to re-install a docker container with a different release type ?

My docker piaware is built with the latest branch. Sorry - i´m kinda new to docker :(

And if you pull a new image into your container, it will have a new feeder ID right? or can i set the old feeder ID somewhere to the new installed software somewhere ?

[Thom-x]

If you change the version latest by dump1090-additional-args you don't have to do anything else.
It will work right away.