Piaware - save snapshot of Skyview

FlightAware ADS-B Flight Tracking
1

Hi there!

My first post after getting my station online a week ago.

Question: have anyone succeeded with taking automated snapshots (to, for example a .png file) of Skyview?

Background: I’m tuning wi-fi and see occasional radar detections in wi-fi access points running on 5GHz DFS channels (typically due to being exposed to weather radar from a nearby flight). I’d like to take a snapshot of Skyview whenever radar is detected to have input to my troubleshooting.

I would like to accomplish this using Debian on a Raspberry PI (not necessarily the one running piaware) - I have experimented some with “xvfb” and “cutycapt” but the image is captured prematurely even though I’ve attempted to use cutycapt’s “–delay=” argument.

piaware
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Any input is welcome!

2

It might be simpler to take a copy of aircraft.json and/or the history_*.json files directly, since that’s the only stateful thing about skyview.

selenium or phantomjs (not sure of the current state of phantomjs) might be other options

3

Thanks. Will pursue that lead!

Just need to figure out how to grab the raw data and wash out nearby flights and their altitude & headings.

I assume Google will provide some examples…

4

You could just run a headless VNC server on the pi, open the web interface in a webserver and then somehow automate screenshotting on there.

I suppose you could also modify the webinterface to display a single aircraft.json.

On you trigger just doing:
cp /run/dump1090-fa/aircraft.json /home/pi/whatever/$(date +%F_%T).json

should do the trick in regards to getting the aircraft.json.

5

Thanks, again. This seem like a very useful forum. Will revert once I have something flying…

6

I’m very interested in this as well! Would love to have my system trigger a screenshot when “interesting” flights were going over. Or, as someone pointed out, somehow have the ability to re-run a JSON file back through the webserver to get a point-in-time recreation.

7

Thanks, again. This seem like a very useful forum.