Ran for 5 minutes this time.
Only have the elevation heatmap error.
Without more information itās difficult to diagnose what is causing that - Itās not a problem Iāve run into. If you are willing to send me your heywhatsthat panorama ID via PM I can have a look and see if I can work out whatās causing the error.
PM with HWT ID sent
Thanks
So the Altitude limits are in ft, but the receiver height is in meters??
Yes. Itās somewhat arbitrary, but the calculations are all done in SI units. I put the altitude limits in feet because thatās whatās conventionally used in aviation.
Is the script in the first post still the correct way to install this? I have an interesting thing going on and this will help me prove/disprove it.
/edit - Installed and ran but I get
./heatmap.sh: line 24: jq: command not found
/edit2 - Installed jq and now itās running. Iāve just set it for an hour at the moment to see what it produces.
Without having to read the entire thread, is there a single post with full instructions and options?
I think the polar.sh from the bottom of the first post pretty much does all the various plots now.
The readme here has an explanation on how to use it:
The first script still works, but the polar.sh produces more plots. It takes longer to run however.
Can you adapt it to use the data saved by graphs1090 in /var/lib/graphs1090/scatter?
I could probably make the required changes, but i donāt have a good overview of the data formats right now 
They contain different data. The files generated by graphs1090 are effectively summarised - they contain number of aircraft, message rates, and maximum ranges.
This uses data from each aircraft - it takes lat/lon, rssi and altitude and calculates range, bearing and elevation. Thereās not enough data in the scatter files to generate a heat map.
Oh right, i should know that.
If you are running timelapse1090, then you donāt have to wait for the script to gather it directly.
Iām not running timelapse.
Now running polar.sh for an hour.
./polar.sh 60 5
HWT OK
Using disk : /home/pi/heatmap
3600
Gathering data every 5 seconds until Fri 30 Aug 14:19:14 BST 2019
Number of data points collected: 172348
Calculating Range, Azimuth and Elevation data:
awk: not an option: -i
Filtering altitudes
Processing heywhatsthat.com data:
Retrieving terrain profiles from heywhatsthat.com:
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 256k 0 256k 0 0 51976 0 --:--:-- 0:00:05 --:--:-- 69420
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
awk: not an option: -i
set theta clockwise top
^
"/dev/stdin", line 27: unrecognized option - see 'help set'.
cp: cannot stat 'polarheatmap_low-2019-08-30.png': No such file or directory
cp: cannot stat 'polarheatmap_high-2019-08-30.png': No such file or directory
cp: cannot stat 'elevation-2019-08-30.png': No such file or directory
cp: cannot stat 'altgraph-2019-08-30.png': No such file or directory
cp: cannot stat 'closealt-2019-08-30.png': No such file or directory
cp: cannot stat 'closerange-2019-08-30.png': No such file or directory
Graphs available at :
http://192.168.1.185/dump1090-fa/data/plots.html
Graphs rendered in 3612 seconds
The problem is 1) having a different version of awk installed, and 2) having an older version of gnuplot.
Do this to resolve those errors:
sudo apt install gawk
sudo apt install liblua5.3
curl -sO http://ftp.debian.org/debian/pool/main/g/gnuplot/gnuplot-data_5.2.6+dfsg1-3_all.deb
curl -sO http://ftp.debian.org/debian/pool/main/g/gnuplot/gnuplot-nox_5.2.6+dfsg1-3_armhf.deb
sudo dpkg -i ./gnuplot-data_5.2.6+dfsg1-3_all.deb
sudo dpkg -i ./gnuplot-nox_5.2.6+dfsg1-3_armhf.deb
The default setting is to keep collected data, so you should either have a file called heatmap or polarheatmap-2019-08-30 in the directory where the script is. That contains the data you collected before. If heatmap is there, just run the script as ./polar.sh 1 1 and it will use the data already there.
If you have the file with the date, just copy it back to heatmap and do the same.
I should add some kind of check in the script for prerequisites, as this comes up fairly often. Iāve modified the readme on github to include these instructions now.
Thanks, all working now. I do still get one error though:
Generating elevation heatmap...
"/dev/stdin" line 101: warning: Skipping data file with no valid points
Generating Range/Altitude plot...
Is this anything to be concerned about? This is when running bash polar.sh -1
Does it produce any output? I think that is complaining about the upintheair data not being available - did you alter your receiver height in the script by any chance? If so, just delete upintheair.json and let it download a new one. I think that error is because the script is not particularly robust about things not being exactly as it expects.
Itās for using timelapse1090 data. You said yourself you donāt have that installed.
Edit: I guess it should throw more errors without any data.
The height in the script needs an annotation which units it expects